noise: limit request body size to prevent unauthenticated OOM

The Noise handshake accepts any machine key without checking
registration, so all endpoints behind the Noise router are reachable
without credentials. Three handlers used io.ReadAll without size
limits, allowing an attacker to OOM-kill the server.

Fix:
- Add http.MaxBytesReader middleware (1 MiB) on the Noise router.
- Replace io.ReadAll + json.Unmarshal with json.NewDecoder in
  PollNetMapHandler and RegistrationHandler.
- Stop reading the body in NotImplementedHandler entirely.

.github/ISSUE_TEMPLATE/bug_report.yaml

@@ -6,8 +6,7 @@ body:
   - type: checkboxes
     attributes:
       label: Is this a support request?
-      description:
-        This issue tracker is for bugs and feature requests only. If you need
+      description: This issue tracker is for bugs and feature requests only. If you need
         help, please use ask in our Discord community
       options:
         - label: This is not a support request
@@ -15,8 +14,7 @@ body:
   - type: checkboxes
     attributes:
       label: Is there an existing issue for this?
-      description:
-        Please search to see if an issue already exists for the bug you
+      description: Please search to see if an issue already exists for the bug you
         encountered.
       options:
         - label: I have searched the existing issues

.github/ISSUE_TEMPLATE/config.yml

@@ -3,9 +3,9 @@ blank_issues_enabled: false
 
 # Contact links
 contact_links:
-  - name: "headscale usage documentation"
-    url: "https://github.com/juanfont/headscale/blob/main/docs"
-    about: "Find documentation about how to configure and run headscale."
   - name: "headscale Discord community"
-    url: "https://discord.gg/xGj2TuqyxY"
+    url: "https://discord.gg/c84AZQhmpx"
     about: "Please ask and answer questions about usage of headscale here."
+  - name: "headscale usage documentation"
+    url: "https://headscale.net/"
+    about: "Find documentation about how to configure and run headscale."

.github/label-response/needs-more-info.md

@@ -0,0 +1,80 @@
+Thank you for taking the time to report this issue.
+
+To help us investigate and resolve this, we need more information. Please provide the following:
+
+> [!TIP]
+> Most issues turn out to be configuration errors rather than bugs. We encourage you to discuss your problem in our [Discord community](https://discord.gg/c84AZQhmpx) **before** opening an issue. The community can often help identify misconfigurations quickly, saving everyone time.
+
+## Required Information
+
+### Environment Details
+
+- **Headscale version**: (run `headscale version`)
+- **Tailscale client version**: (run `tailscale version`)
+- **Operating System**: (e.g., Ubuntu 24.04, macOS 14, Windows 11)
+- **Deployment method**: (binary, Docker, Kubernetes, etc.)
+- **Reverse proxy**: (if applicable: nginx, Traefik, Caddy, etc. - include configuration)
+
+### Debug Information
+
+Please follow our [Debugging and Troubleshooting Guide](https://headscale.net/stable/ref/debug/) and provide:
+
+1. **Client netmap dump** (from affected Tailscale client):
+
+   ```bash
+   tailscale debug netmap > netmap.json
+   ```
+
+2. **Client status dump** (from affected Tailscale client):
+
+   ```bash
+   tailscale status --json > status.json
+   ```
+
+3. **Tailscale client logs** (if experiencing client issues):
+
+   ```bash
+   tailscale debug daemon-logs
+   ```
+
+   > [!IMPORTANT]
+   > We need logs from **multiple nodes** to understand the full picture:
+   >
+   > - The node(s) initiating connections
+   > - The node(s) being connected to
+   >
+   > Without logs from both sides, we cannot diagnose connectivity issues.
+
+4. **Headscale server logs** with `log.level: trace` enabled
+
+5. **Headscale configuration** (with sensitive values redacted - see rules below)
+
+6. **ACL/Policy configuration** (if using ACLs)
+
+7. **Proxy/Docker configuration** (if applicable - nginx.conf, docker-compose.yml, Traefik config, etc.)
+
+## Formatting Requirements
+
+- **Attach long files** - Do not paste large logs or configurations inline. Use GitHub file attachments or GitHub Gists.
+- **Use proper Markdown** - Format code blocks, logs, and configurations with appropriate syntax highlighting.
+- **Structure your response** - Use the headings above to organize your information clearly.
+
+## Redaction Rules
+
+> [!CAUTION]
+> **Replace, do not remove.** Removing information makes debugging impossible.
+
+When redacting sensitive information:
+
+- ✅ **Replace consistently** - If you change `alice@company.com` to `user1@example.com`, use `user1@example.com` everywhere (logs, config, policy, etc.)
+- ✅ **Use meaningful placeholders** - `user1@example.com`, `bob@example.com`, `my-secret-key` are acceptable
+- ❌ **Never remove information** - Gaps in data prevent us from correlating events across logs
+- ❌ **Never redact IP addresses** - We need the actual IPs to trace network paths and identify issues
+
+**If redaction rules are not followed, we will be unable to debug the issue and will have to close it.**
+
+---
+
+**Note:** This issue will be automatically closed in 3 days if no additional information is provided. Once you reply with the requested information, the `needs-more-info` label will be removed automatically.
+
+If you need help gathering this information, please visit our [Discord community](https://discord.gg/c84AZQhmpx).

.github/label-response/support-request.md

@@ -0,0 +1,15 @@
+Thank you for reaching out.
+
+This issue tracker is used for **bug reports and feature requests** only. Your question appears to be a support or configuration question rather than a bug report.
+
+For help with setup, configuration, or general questions, please visit our [Discord community](https://discord.gg/c84AZQhmpx) where the community and maintainers can assist you in real-time.
+
+**Before posting in Discord, please check:**
+
+- [Documentation](https://headscale.net/)
+- [FAQ](https://headscale.net/stable/faq/)
+- [Debugging and Troubleshooting Guide](https://headscale.net/stable/ref/debug/)
+
+If after troubleshooting you determine this is actually a bug, please open a new issue with the required debug information from the troubleshooting guide.
+
+This issue has been automatically closed.

.github/workflows/integration-test-template.yml

@@ -67,6 +67,24 @@ jobs:
         with:
           name: postgres-image
           path: /tmp/artifacts
+      - name: Pin Docker to v28 (avoid v29 breaking changes)
+        run: |
+          # Docker 29 breaks docker build via Go client libraries and
+          # docker load/save with certain tarball formats.
+          # Pin to Docker 28.x until our tooling is updated.
+          # https://github.com/actions/runner-images/issues/13474
+          sudo install -m 0755 -d /etc/apt/keyrings
+          curl -fsSL https://download.docker.com/linux/ubuntu/gpg \
+            | sudo gpg --dearmor -o /etc/apt/keyrings/docker.gpg
+          echo "deb [arch=$(dpkg --print-architecture) signed-by=/etc/apt/keyrings/docker.gpg] \
+            https://download.docker.com/linux/ubuntu $(. /etc/os-release && echo "$VERSION_CODENAME") stable" \
+            | sudo tee /etc/apt/sources.list.d/docker.list > /dev/null
+          sudo apt-get update -qq
+          VERSION=$(apt-cache madison docker-ce | grep '28\.5' | head -1 | awk '{print $3}')
+          sudo apt-get install -y --allow-downgrades \
+            "docker-ce=${VERSION}" "docker-ce-cli=${VERSION}"
+          sudo systemctl restart docker
+          docker version
       - name: Load Docker images, Go cache, and prepare binary
         run: |
           gunzip -c /tmp/artifacts/headscale-image.tar.gz | docker load

.github/workflows/needs-more-info-comment.yml

@@ -0,0 +1,28 @@
+name: Needs More Info - Post Comment
+
+on:
+  issues:
+    types: [labeled]
+
+jobs:
+  post-comment:
+    if: >-
+      github.event.label.name == 'needs-more-info' &&
+      github.repository == 'juanfont/headscale'
+    runs-on: ubuntu-latest
+    permissions:
+      issues: write
+      contents: read
+    steps:
+      - name: Checkout repository
+        uses: actions/checkout@11bd71901bbe5b1630ceea73d27597364c9af683 # v4.2.2
+        with:
+          sparse-checkout: .github/label-response/needs-more-info.md
+          sparse-checkout-cone-mode: false
+
+      - name: Post instruction comment
+        run: gh issue comment "$NUMBER" --body-file .github/label-response/needs-more-info.md
+        env:
+          GH_TOKEN: ${{ secrets.GITHUB_TOKEN }}
+          GH_REPO: ${{ github.repository }}
+          NUMBER: ${{ github.event.issue.number }}

.github/workflows/needs-more-info-timer.yml

@@ -0,0 +1,98 @@
+name: Needs More Info - Timer
+
+on:
+  schedule:
+    - cron: "0 0 * * *" # Daily at midnight UTC
+  issue_comment:
+    types: [created]
+  workflow_dispatch:
+
+jobs:
+  # When a non-bot user comments on a needs-more-info issue, remove the label.
+  remove-label-on-response:
+    if: >-
+      github.repository == 'juanfont/headscale' &&
+      github.event_name == 'issue_comment' &&
+      github.event.comment.user.type != 'Bot' &&
+      contains(github.event.issue.labels.*.name, 'needs-more-info')
+    runs-on: ubuntu-latest
+    permissions:
+      issues: write
+    steps:
+      - name: Remove needs-more-info label
+        run: gh issue edit "$NUMBER" --remove-label needs-more-info
+        env:
+          GH_TOKEN: ${{ secrets.GITHUB_TOKEN }}
+          GH_REPO: ${{ github.repository }}
+          NUMBER: ${{ github.event.issue.number }}
+
+  # On schedule, close issues that have had no human response for 3 days.
+  close-stale:
+    if: >-
+      github.repository == 'juanfont/headscale' &&
+      github.event_name != 'issue_comment'
+    runs-on: ubuntu-latest
+    permissions:
+      issues: write
+    steps:
+      - uses: hustcer/setup-nu@920172d92eb04671776f3ba69d605d3b09351c30 # v3.22
+        with:
+          version: "*"
+
+      - name: Close stale needs-more-info issues
+        shell: nu {0}
+        env:
+          GH_TOKEN: ${{ secrets.GITHUB_TOKEN }}
+          GH_REPO: ${{ github.repository }}
+        run: |
+          let issues = (gh issue list
+            --repo $env.GH_REPO
+            --label "needs-more-info"
+            --state open
+            --json number
+            | from json)
+
+          for issue in $issues {
+            let number = $issue.number
+            print $"Checking issue #($number)"
+
+            # Find when needs-more-info was last added
+            let events = (gh api $"repos/($env.GH_REPO)/issues/($number)/events"
+              --paginate | from json | flatten)
+            let label_event = ($events
+              | where event == "labeled" and label.name == "needs-more-info"
+              | last)
+            let label_added_at = ($label_event.created_at | into datetime)
+
+            # Check for non-bot comments after the label was added
+            let comments = (gh api $"repos/($env.GH_REPO)/issues/($number)/comments"
+              --paginate | from json | flatten)
+            let human_responses = ($comments
+              | where user.type != "Bot"
+              | where { ($in.created_at | into datetime) > $label_added_at })
+
+            if ($human_responses | length) > 0 {
+              print $"  Human responded, removing label"
+              gh issue edit $number --repo $env.GH_REPO --remove-label needs-more-info
+              continue
+            }
+
+            # Check if 3 days have passed
+            let elapsed = (date now) - $label_added_at
+            if $elapsed < 3day {
+              print $"  Only ($elapsed | format duration day) elapsed, skipping"
+              continue
+            }
+
+            print $"  No response for ($elapsed | format duration day), closing"
+            let message = [
+              "This issue has been automatically closed because no additional information was provided within 3 days."
+              ""
+              "If you have the requested information, please open a new issue and include the debug information requested above."
+              ""
+              "Thank you for your understanding."
+            ] | str join "\n"
+            gh issue comment $number --repo $env.GH_REPO --body $message
+            gh issue close $number --repo $env.GH_REPO --reason "not planned"
+            gh issue edit $number --repo $env.GH_REPO --remove-label needs-more-info
+          }

.github/workflows/release.yml

@@ -17,6 +17,25 @@ jobs:
         with:
           fetch-depth: 0
 
+      - name: Pin Docker to v28 (avoid v29 breaking changes)
+        run: |
+          # Docker 29 breaks docker build via Go client libraries and
+          # docker load/save with certain tarball formats.
+          # Pin to Docker 28.x until our tooling is updated.
+          # https://github.com/actions/runner-images/issues/13474
+          sudo install -m 0755 -d /etc/apt/keyrings
+          curl -fsSL https://download.docker.com/linux/ubuntu/gpg \
+            | sudo gpg --dearmor -o /etc/apt/keyrings/docker.gpg
+          echo "deb [arch=$(dpkg --print-architecture) signed-by=/etc/apt/keyrings/docker.gpg] \
+            https://download.docker.com/linux/ubuntu $(. /etc/os-release && echo "$VERSION_CODENAME") stable" \
+            | sudo tee /etc/apt/sources.list.d/docker.list > /dev/null
+          sudo apt-get update -qq
+          VERSION=$(apt-cache madison docker-ce | grep '28\.5' | head -1 | awk '{print $3}')
+          sudo apt-get install -y --allow-downgrades \
+            "docker-ce=${VERSION}" "docker-ce-cli=${VERSION}"
+          sudo systemctl restart docker
+          docker version
+
       - name: Login to DockerHub
         uses: docker/login-action@5e57cd118135c172c3672efd75eb46360885c0ef # v3.6.0
         with:

.github/workflows/stale.yml

@@ -23,5 +23,5 @@ jobs:
             since being marked as stale."
           days-before-pr-stale: -1
           days-before-pr-close: -1
-          exempt-issue-labels: "no-stale-bot"
+          exempt-issue-labels: "no-stale-bot,needs-more-info"
           repo-token: ${{ secrets.GITHUB_TOKEN }}

.github/workflows/support-request.yml

@@ -0,0 +1,30 @@
+name: Support Request - Close Issue
+
+on:
+  issues:
+    types: [labeled]
+
+jobs:
+  close-support-request:
+    if: >-
+      github.event.label.name == 'support-request' &&
+      github.repository == 'juanfont/headscale'
+    runs-on: ubuntu-latest
+    permissions:
+      issues: write
+      contents: read
+    steps:
+      - name: Checkout repository
+        uses: actions/checkout@11bd71901bbe5b1630ceea73d27597364c9af683 # v4.2.2
+        with:
+          sparse-checkout: .github/label-response/support-request.md
+          sparse-checkout-cone-mode: false
+
+      - name: Post comment and close issue
+        run: |
+          gh issue comment "$NUMBER" --body-file .github/label-response/support-request.md
+          gh issue close "$NUMBER" --reason "not planned"
+        env:
+          GH_TOKEN: ${{ secrets.GITHUB_TOKEN }}
+          GH_REPO: ${{ github.repository }}
+          NUMBER: ${{ github.event.issue.number }}

.github/workflows/test-integration.yaml

@@ -69,6 +69,25 @@ jobs:
           name: go-cache
           path: go-cache.tar.gz
           retention-days: 10
+      - name: Pin Docker to v28 (avoid v29 breaking changes)
+        if: steps.changed-files.outputs.files == 'true'
+        run: |
+          # Docker 29 breaks docker build via Go client libraries and
+          # docker load/save with certain tarball formats.
+          # Pin to Docker 28.x until our tooling is updated.
+          # https://github.com/actions/runner-images/issues/13474
+          sudo install -m 0755 -d /etc/apt/keyrings
+          curl -fsSL https://download.docker.com/linux/ubuntu/gpg \
+            | sudo gpg --dearmor -o /etc/apt/keyrings/docker.gpg
+          echo "deb [arch=$(dpkg --print-architecture) signed-by=/etc/apt/keyrings/docker.gpg] \
+            https://download.docker.com/linux/ubuntu $(. /etc/os-release && echo "$VERSION_CODENAME") stable" \
+            | sudo tee /etc/apt/sources.list.d/docker.list > /dev/null
+          sudo apt-get update -qq
+          VERSION=$(apt-cache madison docker-ce | grep '28\.5' | head -1 | awk '{print $3}')
+          sudo apt-get install -y --allow-downgrades \
+            "docker-ce=${VERSION}" "docker-ce-cli=${VERSION}"
+          sudo systemctl restart docker
+          docker version
       - name: Build headscale image
         if: steps.changed-files.outputs.files == 'true'
         run: |
@@ -104,6 +123,24 @@ jobs:
     needs: build
     if: needs.build.outputs.files-changed == 'true'
     steps:
+      - name: Pin Docker to v28 (avoid v29 breaking changes)
+        run: |
+          # Docker 29 breaks docker build via Go client libraries and
+          # docker load/save with certain tarball formats.
+          # Pin to Docker 28.x until our tooling is updated.
+          # https://github.com/actions/runner-images/issues/13474
+          sudo install -m 0755 -d /etc/apt/keyrings
+          curl -fsSL https://download.docker.com/linux/ubuntu/gpg \
+            | sudo gpg --dearmor -o /etc/apt/keyrings/docker.gpg
+          echo "deb [arch=$(dpkg --print-architecture) signed-by=/etc/apt/keyrings/docker.gpg] \
+            https://download.docker.com/linux/ubuntu $(. /etc/os-release && echo "$VERSION_CODENAME") stable" \
+            | sudo tee /etc/apt/sources.list.d/docker.list > /dev/null
+          sudo apt-get update -qq
+          VERSION=$(apt-cache madison docker-ce | grep '28\.5' | head -1 | awk '{print $3}')
+          sudo apt-get install -y --allow-downgrades \
+            "docker-ce=${VERSION}" "docker-ce-cli=${VERSION}"
+          sudo systemctl restart docker
+          docker version
       - name: Pull and save postgres image
         run: |
           docker pull postgres:latest
@@ -192,6 +229,7 @@ jobs:
           - TestUpdateHostnameFromClient
           - TestExpireNode
           - TestSetNodeExpiryInFuture
+          - TestDisableNodeExpiry
           - TestNodeOnlineStatus
           - TestPingAllByIPManyUpDown
           - Test2118DeletingOnlineNodePanics
@@ -216,6 +254,13 @@ jobs:
           - TestSSHIsBlockedInACL
           - TestSSHUserOnlyIsolation
           - TestSSHAutogroupSelf
+          - TestSSHOneUserToOneCheckModeCLI
+          - TestSSHOneUserToOneCheckModeOIDC
+          - TestSSHCheckModeUnapprovedTimeout
+          - TestSSHCheckModeCheckPeriodCLI
+          - TestSSHCheckModeAutoApprove
+          - TestSSHCheckModeNegativeCLI
+          - TestSSHLocalpart
           - TestTagsAuthKeyWithTagRequestDifferentTag
           - TestTagsAuthKeyWithTagNoAdvertiseFlag
           - TestTagsAuthKeyWithTagCannotAddViaCLI
@@ -247,6 +292,7 @@ jobs:
           - TestTagsUserLoginReauthWithEmptyTagsRemovesAllTags
           - TestTagsAuthKeyWithoutUserInheritsTags
           - TestTagsAuthKeyWithoutUserRejectsAdvertisedTags
+          - TestTagsAuthKeyConvertToUserViaCLIRegister
     uses: ./.github/workflows/integration-test-template.yml
     secrets: inherit
     with:

.golangci.yaml

@@ -18,6 +18,7 @@ linters:
     - lll
     - maintidx
     - makezero
+    - mnd
     - musttag
     - nestif
     - nolintlint
@@ -37,6 +38,23 @@ linters:
             time.Sleep is forbidden.
             In tests: use assert.EventuallyWithT for polling/waiting patterns.
             In production code: use a backoff strategy (e.g., cenkalti/backoff) or proper synchronization primitives.
+        # Forbid inline string literals in zerolog field methods - use zf.* constants
+        - pattern: '\.(Str|Int|Int8|Int16|Int32|Int64|Uint|Uint8|Uint16|Uint32|Uint64|Float32|Float64|Bool|Dur|Time|TimeDiff|Strs|Ints|Uints|Floats|Bools|Any|Interface)\("[^"]+"'
+          msg: >-
+            Use zf.* constants for zerolog field names instead of string literals.
+            Import "github.com/juanfont/headscale/hscontrol/util/zlog/zf" and use
+            constants like zf.NodeID, zf.UserName, etc. Add new constants to
+            hscontrol/util/zlog/zf/fields.go if needed.
+        # Forbid ptr.To - use Go 1.26 new(expr) instead
+        - pattern: 'ptr\.To\('
+          msg: >-
+            ptr.To is forbidden. Use Go 1.26's new(expr) syntax instead.
+            Example: ptr.To(value) → new(value)
+        # Forbid tsaddr.SortPrefixes - use slices.SortFunc with netip.Prefix.Compare
+        - pattern: 'tsaddr\.SortPrefixes'
+          msg: >-
+            tsaddr.SortPrefixes is forbidden. Use Go 1.26's netip.Prefix.Compare instead.
+            Example: slices.SortFunc(prefixes, netip.Prefix.Compare)
       analyze-types: true
     gocritic:
       disabled-checks:

.goreleaser.yml

@@ -2,7 +2,7 @@
 version: 2
 before:
   hooks:
-    - go mod tidy -compat=1.25
+    - go mod tidy -compat=1.26
     - go mod vendor
 
 release:
@@ -13,29 +13,6 @@ release:
 
     Please follow the steps outlined in the [upgrade guide](https://headscale.net/stable/setup/upgrade/) to update your existing Headscale installation.
 
-    **It's best to update from one stable version to the next** (e.g., 0.24.0 → 0.25.1 → 0.26.1) in case you are multiple releases behind. You should always pick the latest available patch release.
-
-    Be sure to check the changelog above for version-specific upgrade instructions and breaking changes.
-
-    ### Backup Your Database
-
-    **Always backup your database before upgrading.** Here's how to backup a SQLite database:
-
-    ```bash
-    # Stop headscale
-    systemctl stop headscale
-
-    # Backup sqlite database
-    cp /var/lib/headscale/db.sqlite /var/lib/headscale/db.sqlite.backup
-
-    # Backup sqlite WAL/SHM files (if they exist)
-    cp /var/lib/headscale/db.sqlite-wal /var/lib/headscale/db.sqlite-wal.backup
-    cp /var/lib/headscale/db.sqlite-shm /var/lib/headscale/db.sqlite-shm.backup
-
-    # Start headscale (migration will run automatically)
-    systemctl start headscale
-    ```
-
 builds:
   - id: headscale
     main: ./cmd/headscale

.mdformat.toml

@@ -0,0 +1,2 @@
+[plugin.mkdocs]
+align_semantic_breaks_in_lists = true

.pre-commit-config.yaml

@@ -43,26 +43,20 @@ repos:
         entry: prettier --write --list-different
         language: system
         exclude: ^docs/
-        types_or:
-          [
-            javascript,
-            jsx,
-            ts,
-            tsx,
-            yaml,
-            json,
-            toml,
-            html,
-            css,
-            scss,
-            sass,
-            markdown,
-          ]
+        types_or: [javascript, jsx, ts, tsx, yaml, json, toml, html, css, scss, sass, markdown]
+
+      # mdformat for docs
+      - id: mdformat
+        name: mdformat
+        entry: mdformat
+        language: system
+        types_or: [markdown]
+        files: ^docs/
 
       # golangci-lint for Go code quality
       - id: golangci-lint
         name: golangci-lint
-        entry: nix develop --command golangci-lint run --new-from-rev=HEAD~1 --timeout=5m --fix
+        entry: nix develop --command -- golangci-lint run --new-from-rev=HEAD~1 --timeout=5m --fix
         language: system
         types: [go]
         pass_filenames: false

.prettierignore

@@ -1,5 +1,2 @@
 .github/workflows/test-integration-v2*
-docs/about/features.md
-docs/ref/api.md
-docs/ref/configuration.md
-docs/ref/oidc.md
+docs/

CHANGELOG.md

@@ -1,6 +1,65 @@
 # CHANGELOG
 
-## 0.28.0 (202x-xx-xx)
+## 0.29.0 (202x-xx-xx)
+
+**Minimum supported Tailscale client version: v1.76.0**
+
+### Tailscale ACL compatibility improvements
+
+Extensive test cases were systematically generated using Tailscale clients and the official SaaS
+to understand how the packet filter should be generated. We discovered a few differences, but
+overall our implementation was very close.
+[#3036](https://github.com/juanfont/headscale/pull/3036)
+
+### SSH check action
+
+SSH rules with `"action": "check"` are now supported. When a client initiates a SSH connection to a node
+with a `check` action policy, the user is prompted to authenticate via OIDC or CLI approval before access
+is granted.
+
+A new `headscale auth` CLI command group supports the approval flow:
+
+- `headscale auth approve --auth-id <id>` approves a pending authentication request (SSH check or web auth)
+- `headscale auth reject --auth-id <id>` rejects a pending authentication request
+- `headscale auth register --auth-id <id> --user <user>` registers a node (replaces deprecated `headscale nodes register`)
+
+[#1850](https://github.com/juanfont/headscale/pull/1850)
+
+### BREAKING
+
+- **ACL Policy**: Wildcard (`*`) in ACL sources and destinations now resolves to Tailscale's CGNAT range (`100.64.0.0/10`) and ULA range (`fd7a:115c:a1e0::/48`) instead of all IPs (`0.0.0.0/0` and `::/0`) [#3036](https://github.com/juanfont/headscale/pull/3036)
+  - This better matches Tailscale's security model where `*` means "any node in the tailnet" rather than "any IP address"
+  - Policies relying on wildcard to match non-Tailscale IPs will need to use explicit CIDR ranges instead
+  - **Note**: Users with non-standard IP ranges configured in `prefixes.ipv4` or `prefixes.ipv6` (which is unsupported and produces a warning) will need to explicitly specify their CIDR ranges in ACL rules instead of using `*`
+- **ACL Policy**: Validate autogroup:self source restrictions matching Tailscale behavior - tags, hosts, and IPs are rejected as sources for autogroup:self destinations [#3036](https://github.com/juanfont/headscale/pull/3036)
+  - Policies using tags, hosts, or IP addresses as sources for autogroup:self destinations will now fail validation
+- **Upgrade path**: Headscale now enforces a strict version upgrade path [#3083](https://github.com/juanfont/headscale/pull/3083)
+  - Skipping minor versions (e.g. 0.27 → 0.29) is blocked; upgrade one minor version at a time
+  - Downgrading to a previous minor version is blocked
+  - Patch version changes within the same minor are always allowed
+- **ACL Policy**: The `proto:icmp` protocol name now only includes ICMPv4 (protocol 1), matching Tailscale behavior [#3036](https://github.com/juanfont/headscale/pull/3036)
+  - Previously, `proto:icmp` included both ICMPv4 and ICMPv6
+  - Use `proto:ipv6-icmp` or protocol number `58` explicitly for ICMPv6
+- **CLI**: `headscale nodes register` is deprecated in favour of `headscale auth register --auth-id <id> --user <user>` [#1850](https://github.com/juanfont/headscale/pull/1850)
+  - The old command continues to work but will be removed in a future release
+
+### Changes
+
+- **SSH Policy**: Add support for `localpart:*@<domain>` in SSH rule `users` field, mapping each matching user's email local-part as their OS username [#3091](https://github.com/juanfont/headscale/pull/3091)
+- **ACL Policy**: Add ICMP and IPv6-ICMP protocols to default filter rules when no protocol is specified [#3036](https://github.com/juanfont/headscale/pull/3036)
+- **ACL Policy**: Fix autogroup:self handling for tagged nodes - tagged nodes no longer incorrectly receive autogroup:self filter rules [#3036](https://github.com/juanfont/headscale/pull/3036)
+- **ACL Policy**: Use CIDR format for autogroup:self destination IPs matching Tailscale behavior [#3036](https://github.com/juanfont/headscale/pull/3036)
+- **ACL Policy**: Merge filter rules with identical SrcIPs and IPProto matching Tailscale behavior - multiple ACL rules with the same source now produce a single FilterRule with combined DstPorts [#3036](https://github.com/juanfont/headscale/pull/3036)
+- Remove deprecated `--namespace` flag from `nodes list`, `nodes register`, and `debug create-node` commands (use `--user` instead) [#3093](https://github.com/juanfont/headscale/pull/3093)
+- Remove deprecated `namespace`/`ns` command aliases for `users` and `machine`/`machines` aliases for `nodes` [#3093](https://github.com/juanfont/headscale/pull/3093)
+- Add SSH `check` action support with OIDC and CLI-based approval flows [#1850](https://github.com/juanfont/headscale/pull/1850)
+- Add `headscale auth register`, `headscale auth approve`, and `headscale auth reject` CLI commands [#1850](https://github.com/juanfont/headscale/pull/1850)
+- Add `auth` related routes to the API. The `auth/register` endpoint now expects data as JSON [#1850](https://github.com/juanfont/headscale/pull/1850)
+- Deprecate `headscale nodes register --key` in favour of `headscale auth register --auth-id` [#1850](https://github.com/juanfont/headscale/pull/1850)
+- Generalise auth templates into reusable `AuthSuccess` and `AuthWeb` components [#1850](https://github.com/juanfont/headscale/pull/1850)
+- Unify auth pipeline with `AuthVerdict` type, supporting registration, reauthentication, and SSH checks [#1850](https://github.com/juanfont/headscale/pull/1850)
+
+## 0.28.0 (2026-02-04)
 
 **Minimum supported Tailscale client version: v1.74.0**
 
@@ -162,9 +221,7 @@ sequentially through each stable release, selecting the latest patch version ava
 - Fix autogroup:self preventing visibility of nodes matched by other ACL rules [#2882](https://github.com/juanfont/headscale/pull/2882)
 - Fix nodes being rejected after pre-authentication key expiration [#2917](https://github.com/juanfont/headscale/pull/2917)
 - Fix list-routes command respecting identifier filter with JSON output [#2927](https://github.com/juanfont/headscale/pull/2927)
-- **API Key CLI**: Add `--id` flag to expire/delete commands as alternative to `--prefix` [#3016](https://github.com/juanfont/headscale/pull/3016)
-  - `headscale apikeys expire --id <ID>` or `--prefix <PREFIX>`
-  - `headscale apikeys delete --id <ID>` or `--prefix <PREFIX>`
+- Add `--id` flag to expire/delete commands as alternative to `--prefix` for API Keys [#3016](https://github.com/juanfont/headscale/pull/3016)
 
 ## 0.27.1 (2025-11-11)
 

Dockerfile.derper

@@ -1,6 +1,6 @@
 # For testing purposes only
 
-FROM golang:alpine AS build-env
+FROM golang:1.26.1-alpine AS build-env
 
 WORKDIR /go/src
 

Dockerfile.integration

@@ -2,7 +2,7 @@
 # and are in no way endorsed by Headscale's maintainers as an
 # official nor supported release or distribution.
 
-FROM docker.io/golang:1.25-trixie AS builder
+FROM docker.io/golang:1.26.1-trixie AS builder
 ARG VERSION=dev
 ENV GOPATH /go
 WORKDIR /go/src/headscale

Dockerfile.tailscale-HEAD

@@ -4,7 +4,7 @@
 # This Dockerfile is more or less lifted from tailscale/tailscale
 # to ensure a similar build process when testing the HEAD of tailscale.
 
-FROM golang:1.25-alpine AS build-env
+FROM golang:1.26.1-alpine AS build-env
 
 WORKDIR /go/src
 

Makefile

@@ -21,7 +21,7 @@ endef
 # Source file collections using shell find for better performance
 GO_SOURCES := $(shell find . -name '*.go' -not -path './gen/*' -not -path './vendor/*')
 PROTO_SOURCES := $(shell find . -name '*.proto' -not -path './gen/*' -not -path './vendor/*')
-DOC_SOURCES := $(shell find . \( -name '*.md' -o -name '*.yaml' -o -name '*.yml' -o -name '*.ts' -o -name '*.js' -o -name '*.html' -o -name '*.css' -o -name '*.scss' -o -name '*.sass' \) -not -path './gen/*' -not -path './vendor/*' -not -path './node_modules/*')
+PRETTIER_SOURCES := $(shell find . \( -name '*.md' -o -name '*.yaml' -o -name '*.yml' -o -name '*.ts' -o -name '*.js' -o -name '*.html' -o -name '*.css' -o -name '*.scss' -o -name '*.sass' \) -not -path './gen/*' -not -path './vendor/*' -not -path './node_modules/*')
 
 # Default target
 .PHONY: all
@@ -33,6 +33,7 @@ check-deps:
 	$(call check_tool,go)
 	$(call check_tool,golangci-lint)
 	$(call check_tool,gofumpt)
+	$(call check_tool,mdformat)
 	$(call check_tool,prettier)
 	$(call check_tool,clang-format)
 	$(call check_tool,buf)
@@ -52,7 +53,7 @@ test: check-deps $(GO_SOURCES) go.mod go.sum
 
 # Formatting targets
 .PHONY: fmt
-fmt: fmt-go fmt-prettier fmt-proto
+fmt: fmt-go fmt-mdformat fmt-prettier fmt-proto
 
 .PHONY: fmt-go
 fmt-go: check-deps $(GO_SOURCES)
@@ -60,9 +61,14 @@ fmt-go: check-deps $(GO_SOURCES)
 	gofumpt -l -w .
 	golangci-lint run --fix
 
+.PHONY: fmt-mdformat
+fmt-mdformat: check-deps
+	@echo "Formatting documentation..."
+	mdformat docs/
+
 .PHONY: fmt-prettier
-fmt-prettier: check-deps $(DOC_SOURCES)
-	@echo "Formatting documentation and config files..."
+fmt-prettier: check-deps $(PRETTIER_SOURCES)
+	@echo "Formatting markup and config files..."
 	prettier --write '**/*.{ts,js,md,yaml,yml,sass,css,scss,html}'
 
 .PHONY: fmt-proto
@@ -116,7 +122,8 @@ help:
 	@echo ""
 	@echo "Specific targets:"
 	@echo "  fmt-go       - Format Go code only"
-	@echo "  fmt-prettier - Format documentation only"
+	@echo "  fmt-mdformat - Format documentation only"
+	@echo "  fmt-prettier - Format markup and config files only"
 	@echo "  fmt-proto    - Format Protocol Buffer files only"
 	@echo "  lint-go      - Lint Go code only"
 	@echo "  lint-proto   - Lint Protocol Buffer files only"

README.md

@@ -67,6 +67,8 @@ For NixOS users, a module is available in [`nix/`](./nix/).
 
 ## Talks
 
+- Fosdem 2026 (video): [Headscale & Tailscale: The complementary open source clone](https://fosdem.org/2026/schedule/event/KYQ3LL-headscale-the-complementary-open-source-clone/)
+  - presented by Kristoffer Dalby
 - Fosdem 2023 (video): [Headscale: How we are using integration testing to reimplement Tailscale](https://fosdem.org/2023/schedule/event/goheadscale/)
   - presented by Juan Font Alonso and Kristoffer Dalby
 
@@ -105,6 +107,8 @@ run `make lint` and `make fmt` before committing any code.
 The **Proto** code is linted with [`buf`](https://docs.buf.build/lint/overview) and
 formatted with [`clang-format`](https://clang.llvm.org/docs/ClangFormat.html).
 
+The **docs** are formatted with [`mdformat`](https://mdformat.readthedocs.io).
+
 The **rest** (Markdown, YAML, etc) is formatted with [`prettier`](https://prettier.io).
 
 Check out the `.golangci.yaml` and `Makefile` to see the specific configuration.

cmd/headscale/cli/api_key.go

@@ -1,20 +1,18 @@
 package cli
 
 import (
+	"context"
 	"fmt"
 	"strconv"
-	"time"
 
 	v1 "github.com/juanfont/headscale/gen/go/headscale/v1"
 	"github.com/juanfont/headscale/hscontrol/util"
-	"github.com/prometheus/common/model"
 	"github.com/pterm/pterm"
 	"github.com/spf13/cobra"
-	"google.golang.org/protobuf/types/known/timestamppb"
 )
 
 const (
-	// 90 days.
+	// DefaultAPIKeyExpiry is 90 days.
 	DefaultAPIKeyExpiry = "90d"
 )
 
@@ -46,55 +44,35 @@ var listAPIKeys = &cobra.Command{
 	Use:     "list",
 	Short:   "List the Api keys for headscale",
 	Aliases: []string{"ls", "show"},
-	Run: func(cmd *cobra.Command, args []string) {
-		output, _ := cmd.Flags().GetString("output")
-
-		ctx, client, conn, cancel := newHeadscaleCLIWithConfig()
-		defer cancel()
-		defer conn.Close()
-
-		request := &v1.ListApiKeysRequest{}
-
-		response, err := client.ListApiKeys(ctx, request)
+	RunE: grpcRunE(func(ctx context.Context, client v1.HeadscaleServiceClient, cmd *cobra.Command, args []string) error {
+		response, err := client.ListApiKeys(ctx, &v1.ListApiKeysRequest{})
 		if err != nil {
-			ErrorOutput(
-				err,
-				fmt.Sprintf("Error getting the list of keys: %s", err),
-				output,
-			)
+			return fmt.Errorf("listing api keys: %w", err)
 		}
 
-		if output != "" {
-			SuccessOutput(response.GetApiKeys(), "", output)
-		}
-
-		tableData := pterm.TableData{
-			{"ID", "Prefix", "Expiration", "Created"},
-		}
-		for _, key := range response.GetApiKeys() {
-			expiration := "-"
-
-			if key.GetExpiration() != nil {
-				expiration = ColourTime(key.GetExpiration().AsTime())
+		return printListOutput(cmd, response.GetApiKeys(), func() error {
+			tableData := pterm.TableData{
+				{"ID", "Prefix", "Expiration", "Created"},
 			}
 
-			tableData = append(tableData, []string{
-				strconv.FormatUint(key.GetId(), util.Base10),
-				key.GetPrefix(),
-				expiration,
-				key.GetCreatedAt().AsTime().Format(HeadscaleDateTimeFormat),
-			})
+			for _, key := range response.GetApiKeys() {
+				expiration := "-"
 
-		}
-		err = pterm.DefaultTable.WithHasHeader().WithData(tableData).Render()
-		if err != nil {
-			ErrorOutput(
-				err,
-				fmt.Sprintf("Failed to render pterm table: %s", err),
-				output,
-			)
-		}
-	},
+				if key.GetExpiration() != nil {
+					expiration = ColourTime(key.GetExpiration().AsTime())
+				}
+
+				tableData = append(tableData, []string{
+					strconv.FormatUint(key.GetId(), util.Base10),
+					key.GetPrefix(),
+					expiration,
+					key.GetCreatedAt().AsTime().Format(HeadscaleDateTimeFormat),
+				})
+			}
+
+			return pterm.DefaultTable.WithHasHeader().WithData(tableData).Render()
+		})
+	}),
 }
 
 var createAPIKeyCmd = &cobra.Command{
@@ -105,137 +83,79 @@ Creates a new Api key, the Api key is only visible on creation
 and cannot be retrieved again.
 If you loose a key, create a new one and revoke (expire) the old one.`,
 	Aliases: []string{"c", "new"},
-	Run: func(cmd *cobra.Command, args []string) {
-		output, _ := cmd.Flags().GetString("output")
-
-		request := &v1.CreateApiKeyRequest{}
-
-		durationStr, _ := cmd.Flags().GetString("expiration")
-
-		duration, err := model.ParseDuration(durationStr)
+	RunE: grpcRunE(func(ctx context.Context, client v1.HeadscaleServiceClient, cmd *cobra.Command, args []string) error {
+		expiration, err := expirationFromFlag(cmd)
 		if err != nil {
-			ErrorOutput(
-				err,
-				fmt.Sprintf("Could not parse duration: %s\n", err),
-				output,
-			)
+			return err
 		}
 
-		expiration := time.Now().UTC().Add(time.Duration(duration))
-
-		request.Expiration = timestamppb.New(expiration)
-
-		ctx, client, conn, cancel := newHeadscaleCLIWithConfig()
-		defer cancel()
-		defer conn.Close()
-
-		response, err := client.CreateApiKey(ctx, request)
+		response, err := client.CreateApiKey(ctx, &v1.CreateApiKeyRequest{
+			Expiration: expiration,
+		})
 		if err != nil {
-			ErrorOutput(
-				err,
-				fmt.Sprintf("Cannot create Api Key: %s\n", err),
-				output,
-			)
+			return fmt.Errorf("creating api key: %w", err)
 		}
 
-		SuccessOutput(response.GetApiKey(), response.GetApiKey(), output)
-	},
+		return printOutput(cmd, response.GetApiKey(), response.GetApiKey())
+	}),
+}
+
+// apiKeyIDOrPrefix reads --id and --prefix from cmd and validates that
+// exactly one is provided.
+func apiKeyIDOrPrefix(cmd *cobra.Command) (uint64, string, error) {
+	id, _ := cmd.Flags().GetUint64("id")
+	prefix, _ := cmd.Flags().GetString("prefix")
+
+	switch {
+	case id == 0 && prefix == "":
+		return 0, "", fmt.Errorf("either --id or --prefix must be provided: %w", errMissingParameter)
+	case id != 0 && prefix != "":
+		return 0, "", fmt.Errorf("only one of --id or --prefix can be provided: %w", errMissingParameter)
+	}
+
+	return id, prefix, nil
 }
 
 var expireAPIKeyCmd = &cobra.Command{
 	Use:     "expire",
 	Short:   "Expire an ApiKey",
 	Aliases: []string{"revoke", "exp", "e"},
-	Run: func(cmd *cobra.Command, args []string) {
-		output, _ := cmd.Flags().GetString("output")
-
-		id, _ := cmd.Flags().GetUint64("id")
-		prefix, _ := cmd.Flags().GetString("prefix")
-
-		switch {
-		case id == 0 && prefix == "":
-			ErrorOutput(
-				errMissingParameter,
-				"Either --id or --prefix must be provided",
-				output,
-			)
-		case id != 0 && prefix != "":
-			ErrorOutput(
-				errMissingParameter,
-				"Only one of --id or --prefix can be provided",
-				output,
-			)
-		}
-
-		ctx, client, conn, cancel := newHeadscaleCLIWithConfig()
-		defer cancel()
-		defer conn.Close()
-
-		request := &v1.ExpireApiKeyRequest{}
-		if id != 0 {
-			request.Id = id
-		} else {
-			request.Prefix = prefix
-		}
-
-		response, err := client.ExpireApiKey(ctx, request)
+	RunE: grpcRunE(func(ctx context.Context, client v1.HeadscaleServiceClient, cmd *cobra.Command, args []string) error {
+		id, prefix, err := apiKeyIDOrPrefix(cmd)
 		if err != nil {
-			ErrorOutput(
-				err,
-				fmt.Sprintf("Cannot expire Api Key: %s\n", err),
-				output,
-			)
+			return err
 		}
 
-		SuccessOutput(response, "Key expired", output)
-	},
+		response, err := client.ExpireApiKey(ctx, &v1.ExpireApiKeyRequest{
+			Id:     id,
+			Prefix: prefix,
+		})
+		if err != nil {
+			return fmt.Errorf("expiring api key: %w", err)
+		}
+
+		return printOutput(cmd, response, "Key expired")
+	}),
 }
 
 var deleteAPIKeyCmd = &cobra.Command{
 	Use:     "delete",
 	Short:   "Delete an ApiKey",
 	Aliases: []string{"remove", "del"},
-	Run: func(cmd *cobra.Command, args []string) {
-		output, _ := cmd.Flags().GetString("output")
-
-		id, _ := cmd.Flags().GetUint64("id")
-		prefix, _ := cmd.Flags().GetString("prefix")
-
-		switch {
-		case id == 0 && prefix == "":
-			ErrorOutput(
-				errMissingParameter,
-				"Either --id or --prefix must be provided",
-				output,
-			)
-		case id != 0 && prefix != "":
-			ErrorOutput(
-				errMissingParameter,
-				"Only one of --id or --prefix can be provided",
-				output,
-			)
-		}
-
-		ctx, client, conn, cancel := newHeadscaleCLIWithConfig()
-		defer cancel()
-		defer conn.Close()
-
-		request := &v1.DeleteApiKeyRequest{}
-		if id != 0 {
-			request.Id = id
-		} else {
-			request.Prefix = prefix
-		}
-
-		response, err := client.DeleteApiKey(ctx, request)
+	RunE: grpcRunE(func(ctx context.Context, client v1.HeadscaleServiceClient, cmd *cobra.Command, args []string) error {
+		id, prefix, err := apiKeyIDOrPrefix(cmd)
 		if err != nil {
-			ErrorOutput(
-				err,
-				fmt.Sprintf("Cannot delete Api Key: %s\n", err),
-				output,
-			)
+			return err
 		}
 
-		SuccessOutput(response, "Key deleted", output)
-	},
+		response, err := client.DeleteApiKey(ctx, &v1.DeleteApiKeyRequest{
+			Id:     id,
+			Prefix: prefix,
+		})
+		if err != nil {
+			return fmt.Errorf("deleting api key: %w", err)
+		}
+
+		return printOutput(cmd, response, "Key deleted")
+	}),
 }

cmd/headscale/cli/auth.go

@@ -0,0 +1,93 @@
+package cli
+
+import (
+	"context"
+	"fmt"
+
+	v1 "github.com/juanfont/headscale/gen/go/headscale/v1"
+	"github.com/spf13/cobra"
+)
+
+func init() {
+	rootCmd.AddCommand(authCmd)
+
+	authRegisterCmd.Flags().StringP("user", "u", "", "User")
+	authRegisterCmd.Flags().String("auth-id", "", "Auth ID")
+	mustMarkRequired(authRegisterCmd, "user", "auth-id")
+	authCmd.AddCommand(authRegisterCmd)
+
+	authApproveCmd.Flags().String("auth-id", "", "Auth ID")
+	mustMarkRequired(authApproveCmd, "auth-id")
+	authCmd.AddCommand(authApproveCmd)
+
+	authRejectCmd.Flags().String("auth-id", "", "Auth ID")
+	mustMarkRequired(authRejectCmd, "auth-id")
+	authCmd.AddCommand(authRejectCmd)
+}
+
+var authCmd = &cobra.Command{
+	Use:   "auth",
+	Short: "Manage node authentication and approval",
+}
+
+var authRegisterCmd = &cobra.Command{
+	Use:   "register",
+	Short: "Register a node to your network",
+	RunE: grpcRunE(func(ctx context.Context, client v1.HeadscaleServiceClient, cmd *cobra.Command, args []string) error {
+		user, _ := cmd.Flags().GetString("user")
+		authID, _ := cmd.Flags().GetString("auth-id")
+
+		request := &v1.AuthRegisterRequest{
+			AuthId: authID,
+			User:   user,
+		}
+
+		response, err := client.AuthRegister(ctx, request)
+		if err != nil {
+			return fmt.Errorf("registering node: %w", err)
+		}
+
+		return printOutput(
+			cmd,
+			response.GetNode(),
+			fmt.Sprintf("Node %s registered", response.GetNode().GetGivenName()))
+	}),
+}
+
+var authApproveCmd = &cobra.Command{
+	Use:   "approve",
+	Short: "Approve a pending authentication request",
+	RunE: grpcRunE(func(ctx context.Context, client v1.HeadscaleServiceClient, cmd *cobra.Command, args []string) error {
+		authID, _ := cmd.Flags().GetString("auth-id")
+
+		request := &v1.AuthApproveRequest{
+			AuthId: authID,
+		}
+
+		response, err := client.AuthApprove(ctx, request)
+		if err != nil {
+			return fmt.Errorf("approving auth request: %w", err)
+		}
+
+		return printOutput(cmd, response, "Auth request approved")
+	}),
+}
+
+var authRejectCmd = &cobra.Command{
+	Use:   "reject",
+	Short: "Reject a pending authentication request",
+	RunE: grpcRunE(func(ctx context.Context, client v1.HeadscaleServiceClient, cmd *cobra.Command, args []string) error {
+		authID, _ := cmd.Flags().GetString("auth-id")
+
+		request := &v1.AuthRejectRequest{
+			AuthId: authID,
+		}
+
+		response, err := client.AuthReject(ctx, request)
+		if err != nil {
+			return fmt.Errorf("rejecting auth request: %w", err)
+		}
+
+		return printOutput(cmd, response, "Auth request rejected")
+	}),
+}

cmd/headscale/cli/configtest.go

@@ -1,7 +1,8 @@
 package cli
 
 import (
-	"github.com/rs/zerolog/log"
+	"fmt"
+
 	"github.com/spf13/cobra"
 )
 
@@ -13,10 +14,12 @@ var configTestCmd = &cobra.Command{
 	Use:   "configtest",
 	Short: "Test the configuration.",
 	Long:  "Run a test of the configuration and exit.",
-	Run: func(cmd *cobra.Command, args []string) {
+	RunE: func(cmd *cobra.Command, args []string) error {
 		_, err := newHeadscaleServerWithConfig()
 		if err != nil {
-			log.Fatal().Caller().Err(err).Msg("Error initializing")
+			return fmt.Errorf("configuration error: %w", err)
 		}
+
+		return nil
 	},
 }

cmd/headscale/cli/debug.go

@@ -1,44 +1,22 @@
 package cli
 
 import (
+	"context"
 	"fmt"
 
 	v1 "github.com/juanfont/headscale/gen/go/headscale/v1"
 	"github.com/juanfont/headscale/hscontrol/types"
-	"github.com/rs/zerolog/log"
 	"github.com/spf13/cobra"
-	"google.golang.org/grpc/status"
 )
 
-// Error is used to compare errors as per https://dave.cheney.net/2016/04/07/constant-errors
-type Error string
-
-func (e Error) Error() string { return string(e) }
-
 func init() {
 	rootCmd.AddCommand(debugCmd)
 
 	createNodeCmd.Flags().StringP("name", "", "", "Name")
-	err := createNodeCmd.MarkFlagRequired("name")
-	if err != nil {
-		log.Fatal().Err(err).Msg("")
-	}
 	createNodeCmd.Flags().StringP("user", "u", "", "User")
-
-	createNodeCmd.Flags().StringP("namespace", "n", "", "User")
-	createNodeNamespaceFlag := createNodeCmd.Flags().Lookup("namespace")
-	createNodeNamespaceFlag.Deprecated = deprecateNamespaceMessage
-	createNodeNamespaceFlag.Hidden = true
-
-	err = createNodeCmd.MarkFlagRequired("user")
-	if err != nil {
-		log.Fatal().Err(err).Msg("")
-	}
 	createNodeCmd.Flags().StringP("key", "k", "", "Key")
-	err = createNodeCmd.MarkFlagRequired("key")
-	if err != nil {
-		log.Fatal().Err(err).Msg("")
-	}
+	mustMarkRequired(createNodeCmd, "name", "user", "key")
+
 	createNodeCmd.Flags().
 		StringSliceP("route", "r", []string{}, "List (or repeated flags) of routes to advertise")
 
@@ -53,54 +31,18 @@ var debugCmd = &cobra.Command{
 
 var createNodeCmd = &cobra.Command{
 	Use:   "create-node",
-	Short: "Create a node that can be registered with `nodes register <>` command",
-	Run: func(cmd *cobra.Command, args []string) {
-		output, _ := cmd.Flags().GetString("output")
+	Short: "Create a node that can be registered with `auth register <>` command",
+	RunE: grpcRunE(func(ctx context.Context, client v1.HeadscaleServiceClient, cmd *cobra.Command, args []string) error {
+		user, _ := cmd.Flags().GetString("user")
+		name, _ := cmd.Flags().GetString("name")
+		registrationID, _ := cmd.Flags().GetString("key")
 
-		user, err := cmd.Flags().GetString("user")
+		_, err := types.AuthIDFromString(registrationID)
 		if err != nil {
-			ErrorOutput(err, fmt.Sprintf("Error getting user: %s", err), output)
+			return fmt.Errorf("parsing machine key: %w", err)
 		}
 
-		ctx, client, conn, cancel := newHeadscaleCLIWithConfig()
-		defer cancel()
-		defer conn.Close()
-
-		name, err := cmd.Flags().GetString("name")
-		if err != nil {
-			ErrorOutput(
-				err,
-				fmt.Sprintf("Error getting node from flag: %s", err),
-				output,
-			)
-		}
-
-		registrationID, err := cmd.Flags().GetString("key")
-		if err != nil {
-			ErrorOutput(
-				err,
-				fmt.Sprintf("Error getting key from flag: %s", err),
-				output,
-			)
-		}
-
-		_, err = types.RegistrationIDFromString(registrationID)
-		if err != nil {
-			ErrorOutput(
-				err,
-				fmt.Sprintf("Failed to parse machine key from flag: %s", err),
-				output,
-			)
-		}
-
-		routes, err := cmd.Flags().GetStringSlice("route")
-		if err != nil {
-			ErrorOutput(
-				err,
-				fmt.Sprintf("Error getting routes from flag: %s", err),
-				output,
-			)
-		}
+		routes, _ := cmd.Flags().GetStringSlice("route")
 
 		request := &v1.DebugCreateNodeRequest{
 			Key:    registrationID,
@@ -111,13 +53,9 @@ var createNodeCmd = &cobra.Command{
 
 		response, err := client.DebugCreateNode(ctx, request)
 		if err != nil {
-			ErrorOutput(
-				err,
-				"Cannot create node: "+status.Convert(err).Message(),
-				output,
-			)
+			return fmt.Errorf("creating node: %w", err)
 		}
 
-		SuccessOutput(response.GetNode(), "Node created", output)
-	},
+		return printOutput(cmd, response.GetNode(), "Node created")
+	}),
 }

cmd/headscale/cli/dump_config.go

@@ -15,14 +15,12 @@ var dumpConfigCmd = &cobra.Command{
 	Use:    "dumpConfig",
 	Short:  "dump current config to /etc/headscale/config.dump.yaml, integration test only",
 	Hidden: true,
-	Args: func(cmd *cobra.Command, args []string) error {
-		return nil
-	},
-	Run: func(cmd *cobra.Command, args []string) {
+	RunE: func(cmd *cobra.Command, args []string) error {
 		err := viper.WriteConfigAs("/etc/headscale/config.dump.yaml")
 		if err != nil {
-			//nolint
-			fmt.Println("Failed to dump config")
+			return fmt.Errorf("dumping config: %w", err)
 		}
+
+		return nil
 	},
 }

cmd/headscale/cli/generate.go

@@ -21,22 +21,17 @@ var generateCmd = &cobra.Command{
 var generatePrivateKeyCmd = &cobra.Command{
 	Use:   "private-key",
 	Short: "Generate a private key for the headscale server",
-	Run: func(cmd *cobra.Command, args []string) {
-		output, _ := cmd.Flags().GetString("output")
+	RunE: func(cmd *cobra.Command, args []string) error {
 		machineKey := key.NewMachine()
 
 		machineKeyStr, err := machineKey.MarshalText()
 		if err != nil {
-			ErrorOutput(
-				err,
-				fmt.Sprintf("Error getting machine key from flag: %s", err),
-				output,
-			)
+			return fmt.Errorf("marshalling machine key: %w", err)
 		}
 
-		SuccessOutput(map[string]string{
+		return printOutput(cmd, map[string]string{
 			"private_key": string(machineKeyStr),
 		},
-			string(machineKeyStr), output)
+			string(machineKeyStr))
 	},
 }

cmd/headscale/cli/health.go

@@ -1,6 +1,9 @@
 package cli
 
 import (
+	"context"
+	"fmt"
+
 	v1 "github.com/juanfont/headscale/gen/go/headscale/v1"
 	"github.com/spf13/cobra"
 )
@@ -13,17 +16,12 @@ var healthCmd = &cobra.Command{
 	Use:   "health",
 	Short: "Check the health of the Headscale server",
 	Long:  "Check the health of the Headscale server. This command will return an exit code of 0 if the server is healthy, or 1 if it is not.",
-	Run: func(cmd *cobra.Command, args []string) {
-		output, _ := cmd.Flags().GetString("output")
-		ctx, client, conn, cancel := newHeadscaleCLIWithConfig()
-		defer cancel()
-		defer conn.Close()
-
+	RunE: grpcRunE(func(ctx context.Context, client v1.HeadscaleServiceClient, cmd *cobra.Command, args []string) error {
 		response, err := client.Health(ctx, &v1.HealthRequest{})
 		if err != nil {
-			ErrorOutput(err, "Error checking health", output)
+			return fmt.Errorf("checking health: %w", err)
 		}
 
-		SuccessOutput(response, "", output)
-	},
+		return printOutput(cmd, response, "")
+	}),
 }

cmd/headscale/cli/mockoidc.go

@@ -1,8 +1,8 @@
 package cli
 
 import (
+	"context"
 	"encoding/json"
-	"errors"
 	"fmt"
 	"net"
 	"net/http"
@@ -10,15 +10,22 @@ import (
 	"strconv"
 	"time"
 
+	"github.com/juanfont/headscale/hscontrol/util/zlog/zf"
 	"github.com/oauth2-proxy/mockoidc"
 	"github.com/rs/zerolog/log"
 	"github.com/spf13/cobra"
 )
 
+// Error is used to compare errors as per https://dave.cheney.net/2016/04/07/constant-errors
+type Error string
+
+func (e Error) Error() string { return string(e) }
+
 const (
 	errMockOidcClientIDNotDefined     = Error("MOCKOIDC_CLIENT_ID not defined")
 	errMockOidcClientSecretNotDefined = Error("MOCKOIDC_CLIENT_SECRET not defined")
 	errMockOidcPortNotDefined         = Error("MOCKOIDC_PORT not defined")
+	errMockOidcUsersNotDefined        = Error("MOCKOIDC_USERS not defined")
 	refreshTTL                        = 60 * time.Minute
 )
 
@@ -32,12 +39,13 @@ var mockOidcCmd = &cobra.Command{
 	Use:   "mockoidc",
 	Short: "Runs a mock OIDC server for testing",
 	Long:  "This internal command runs a OpenID Connect for testing purposes",
-	Run: func(cmd *cobra.Command, args []string) {
+	RunE: func(cmd *cobra.Command, args []string) error {
 		err := mockOIDC()
 		if err != nil {
-			log.Error().Err(err).Msgf("Error running mock OIDC server")
-			os.Exit(1)
+			return fmt.Errorf("running mock OIDC server: %w", err)
 		}
+
+		return nil
 	},
 }
 
@@ -46,41 +54,47 @@ func mockOIDC() error {
 	if clientID == "" {
 		return errMockOidcClientIDNotDefined
 	}
+
 	clientSecret := os.Getenv("MOCKOIDC_CLIENT_SECRET")
 	if clientSecret == "" {
 		return errMockOidcClientSecretNotDefined
 	}
+
 	addrStr := os.Getenv("MOCKOIDC_ADDR")
 	if addrStr == "" {
 		return errMockOidcPortNotDefined
 	}
+
 	portStr := os.Getenv("MOCKOIDC_PORT")
 	if portStr == "" {
 		return errMockOidcPortNotDefined
 	}
+
 	accessTTLOverride := os.Getenv("MOCKOIDC_ACCESS_TTL")
 	if accessTTLOverride != "" {
 		newTTL, err := time.ParseDuration(accessTTLOverride)
 		if err != nil {
 			return err
 		}
+
 		accessTTL = newTTL
 	}
 
 	userStr := os.Getenv("MOCKOIDC_USERS")
 	if userStr == "" {
-		return errors.New("MOCKOIDC_USERS not defined")
+		return errMockOidcUsersNotDefined
 	}
 
 	var users []mockoidc.MockUser
+
 	err := json.Unmarshal([]byte(userStr), &users)
 	if err != nil {
 		return fmt.Errorf("unmarshalling users: %w", err)
 	}
 
-	log.Info().Interface("users", users).Msg("loading users from JSON")
+	log.Info().Interface(zf.Users, users).Msg("loading users from JSON")
 
-	log.Info().Msgf("Access token TTL: %s", accessTTL)
+	log.Info().Msgf("access token TTL: %s", accessTTL)
 
 	port, err := strconv.Atoi(portStr)
 	if err != nil {
@@ -92,7 +106,7 @@ func mockOIDC() error {
 		return err
 	}
 
-	listener, err := net.Listen("tcp", fmt.Sprintf("%s:%d", addrStr, port))
+	listener, err := new(net.ListenConfig).Listen(context.Background(), "tcp", fmt.Sprintf("%s:%d", addrStr, port))
 	if err != nil {
 		return err
 	}
@@ -101,8 +115,10 @@ func mockOIDC() error {
 	if err != nil {
 		return err
 	}
-	log.Info().Msgf("Mock OIDC server listening on %s", listener.Addr().String())
-	log.Info().Msgf("Issuer: %s", mock.Issuer())
+
+	log.Info().Msgf("mock OIDC server listening on %s", listener.Addr().String())
+	log.Info().Msgf("issuer: %s", mock.Issuer())
+
 	c := make(chan struct{})
 	<-c
 
@@ -133,12 +149,13 @@ func getMockOIDC(clientID string, clientSecret string, users []mockoidc.MockUser
 		ErrorQueue:                    &mockoidc.ErrorQueue{},
 	}
 
-	mock.AddMiddleware(func(h http.Handler) http.Handler {
+	_ = mock.AddMiddleware(func(h http.Handler) http.Handler {
 		return http.HandlerFunc(func(w http.ResponseWriter, r *http.Request) {
-			log.Info().Msgf("Request: %+v", r)
+			log.Info().Msgf("request: %+v", r)
 			h.ServeHTTP(w, r)
+
 			if r.Response != nil {
-				log.Info().Msgf("Response: %+v", r.Response)
+				log.Info().Msgf("response: %+v", r.Response)
 			}
 		})
 	})

cmd/headscale/cli/nodes.go

@@ -1,8 +1,8 @@
 package cli
 
 import (
+	"context"
 	"fmt"
-	"log"
 	"net/netip"
 	"strconv"
 	"strings"
@@ -13,7 +13,6 @@ import (
 	"github.com/pterm/pterm"
 	"github.com/samber/lo"
 	"github.com/spf13/cobra"
-	"google.golang.org/grpc/status"
 	"google.golang.org/protobuf/types/known/timestamppb"
 	"tailscale.com/types/key"
 )
@@ -21,63 +20,37 @@ import (
 func init() {
 	rootCmd.AddCommand(nodeCmd)
 	listNodesCmd.Flags().StringP("user", "u", "", "Filter by user")
-
-	listNodesCmd.Flags().StringP("namespace", "n", "", "User")
-	listNodesNamespaceFlag := listNodesCmd.Flags().Lookup("namespace")
-	listNodesNamespaceFlag.Deprecated = deprecateNamespaceMessage
-	listNodesNamespaceFlag.Hidden = true
 	nodeCmd.AddCommand(listNodesCmd)
 
 	listNodeRoutesCmd.Flags().Uint64P("identifier", "i", 0, "Node identifier (ID)")
 	nodeCmd.AddCommand(listNodeRoutesCmd)
 
 	registerNodeCmd.Flags().StringP("user", "u", "", "User")
-
-	registerNodeCmd.Flags().StringP("namespace", "n", "", "User")
-	registerNodeNamespaceFlag := registerNodeCmd.Flags().Lookup("namespace")
-	registerNodeNamespaceFlag.Deprecated = deprecateNamespaceMessage
-	registerNodeNamespaceFlag.Hidden = true
-
-	err := registerNodeCmd.MarkFlagRequired("user")
-	if err != nil {
-		log.Fatal(err.Error())
-	}
 	registerNodeCmd.Flags().StringP("key", "k", "", "Key")
-	err = registerNodeCmd.MarkFlagRequired("key")
-	if err != nil {
-		log.Fatal(err.Error())
-	}
+	mustMarkRequired(registerNodeCmd, "user", "key")
 	nodeCmd.AddCommand(registerNodeCmd)
 
 	expireNodeCmd.Flags().Uint64P("identifier", "i", 0, "Node identifier (ID)")
 	expireNodeCmd.Flags().StringP("expiry", "e", "", "Set expire to (RFC3339 format, e.g. 2025-08-27T10:00:00Z), or leave empty to expire immediately.")
-	err = expireNodeCmd.MarkFlagRequired("identifier")
-	if err != nil {
-		log.Fatal(err.Error())
-	}
+	expireNodeCmd.Flags().BoolP("disable", "d", false, "Disable key expiry (node will never expire)")
+	mustMarkRequired(expireNodeCmd, "identifier")
 	nodeCmd.AddCommand(expireNodeCmd)
 
 	renameNodeCmd.Flags().Uint64P("identifier", "i", 0, "Node identifier (ID)")
-	err = renameNodeCmd.MarkFlagRequired("identifier")
-	if err != nil {
-		log.Fatal(err.Error())
-	}
+	mustMarkRequired(renameNodeCmd, "identifier")
 	nodeCmd.AddCommand(renameNodeCmd)
 
 	deleteNodeCmd.Flags().Uint64P("identifier", "i", 0, "Node identifier (ID)")
-	err = deleteNodeCmd.MarkFlagRequired("identifier")
-	if err != nil {
-		log.Fatal(err.Error())
-	}
+	mustMarkRequired(deleteNodeCmd, "identifier")
 	nodeCmd.AddCommand(deleteNodeCmd)
 
 	tagCmd.Flags().Uint64P("identifier", "i", 0, "Node identifier (ID)")
-	tagCmd.MarkFlagRequired("identifier")
+	mustMarkRequired(tagCmd, "identifier")
 	tagCmd.Flags().StringSliceP("tags", "t", []string{}, "List of tags to add to the node")
 	nodeCmd.AddCommand(tagCmd)
 
 	approveRoutesCmd.Flags().Uint64P("identifier", "i", 0, "Node identifier (ID)")
-	approveRoutesCmd.MarkFlagRequired("identifier")
+	mustMarkRequired(approveRoutesCmd, "identifier")
 	approveRoutesCmd.Flags().StringSliceP("routes", "r", []string{}, `List of routes that will be approved (comma-separated, e.g. "10.0.0.0/8,192.168.0.0/24" or empty string to remove all approved routes)`)
 	nodeCmd.AddCommand(approveRoutesCmd)
 
@@ -87,31 +60,16 @@ func init() {
 var nodeCmd = &cobra.Command{
 	Use:     "nodes",
 	Short:   "Manage the nodes of Headscale",
-	Aliases: []string{"node", "machine", "machines"},
+	Aliases: []string{"node"},
 }
 
 var registerNodeCmd = &cobra.Command{
-	Use:   "register",
-	Short: "Registers a node to your network",
-	Run: func(cmd *cobra.Command, args []string) {
-		output, _ := cmd.Flags().GetString("output")
-		user, err := cmd.Flags().GetString("user")
-		if err != nil {
-			ErrorOutput(err, fmt.Sprintf("Error getting user: %s", err), output)
-		}
-
-		ctx, client, conn, cancel := newHeadscaleCLIWithConfig()
-		defer cancel()
-		defer conn.Close()
-
-		registrationID, err := cmd.Flags().GetString("key")
-		if err != nil {
-			ErrorOutput(
-				err,
-				fmt.Sprintf("Error getting node key from flag: %s", err),
-				output,
-			)
-		}
+	Use:        "register",
+	Short:      "Registers a node to your network",
+	Deprecated: "use 'headscale auth register --auth-id <id> --user <user>' instead",
+	RunE: grpcRunE(func(ctx context.Context, client v1.HeadscaleServiceClient, cmd *cobra.Command, args []string) error {
+		user, _ := cmd.Flags().GetString("user")
+		registrationID, _ := cmd.Flags().GetString("key")
 
 		request := &v1.RegisterNodeRequest{
 			Key:  registrationID,
@@ -120,98 +78,49 @@ var registerNodeCmd = &cobra.Command{
 
 		response, err := client.RegisterNode(ctx, request)
 		if err != nil {
-			ErrorOutput(
-				err,
-				fmt.Sprintf(
-					"Cannot register node: %s\n",
-					status.Convert(err).Message(),
-				),
-				output,
-			)
+			return fmt.Errorf("registering node: %w", err)
 		}
 
-		SuccessOutput(
+		return printOutput(
+			cmd,
 			response.GetNode(),
-			fmt.Sprintf("Node %s registered", response.GetNode().GetGivenName()), output)
-	},
+			fmt.Sprintf("Node %s registered", response.GetNode().GetGivenName()))
+	}),
 }
 
 var listNodesCmd = &cobra.Command{
 	Use:     "list",
 	Short:   "List nodes",
 	Aliases: []string{"ls", "show"},
-	Run: func(cmd *cobra.Command, args []string) {
-		output, _ := cmd.Flags().GetString("output")
-		user, err := cmd.Flags().GetString("user")
+	RunE: grpcRunE(func(ctx context.Context, client v1.HeadscaleServiceClient, cmd *cobra.Command, args []string) error {
+		user, _ := cmd.Flags().GetString("user")
+
+		response, err := client.ListNodes(ctx, &v1.ListNodesRequest{User: user})
 		if err != nil {
-			ErrorOutput(err, fmt.Sprintf("Error getting user: %s", err), output)
+			return fmt.Errorf("listing nodes: %w", err)
 		}
 
-		ctx, client, conn, cancel := newHeadscaleCLIWithConfig()
-		defer cancel()
-		defer conn.Close()
+		return printListOutput(cmd, response.GetNodes(), func() error {
+			tableData, err := nodesToPtables(user, response.GetNodes())
+			if err != nil {
+				return fmt.Errorf("converting to table: %w", err)
+			}
 
-		request := &v1.ListNodesRequest{
-			User: user,
-		}
-
-		response, err := client.ListNodes(ctx, request)
-		if err != nil {
-			ErrorOutput(
-				err,
-				"Cannot get nodes: "+status.Convert(err).Message(),
-				output,
-			)
-		}
-
-		if output != "" {
-			SuccessOutput(response.GetNodes(), "", output)
-		}
-
-		tableData, err := nodesToPtables(user, response.GetNodes())
-		if err != nil {
-			ErrorOutput(err, fmt.Sprintf("Error converting to table: %s", err), output)
-		}
-
-		err = pterm.DefaultTable.WithHasHeader().WithData(tableData).Render()
-		if err != nil {
-			ErrorOutput(
-				err,
-				fmt.Sprintf("Failed to render pterm table: %s", err),
-				output,
-			)
-		}
-	},
+			return pterm.DefaultTable.WithHasHeader().WithData(tableData).Render()
+		})
+	}),
 }
 
 var listNodeRoutesCmd = &cobra.Command{
 	Use:     "list-routes",
 	Short:   "List routes available on nodes",
 	Aliases: []string{"lsr", "routes"},
-	Run: func(cmd *cobra.Command, args []string) {
-		output, _ := cmd.Flags().GetString("output")
-		identifier, err := cmd.Flags().GetUint64("identifier")
+	RunE: grpcRunE(func(ctx context.Context, client v1.HeadscaleServiceClient, cmd *cobra.Command, args []string) error {
+		identifier, _ := cmd.Flags().GetUint64("identifier")
+
+		response, err := client.ListNodes(ctx, &v1.ListNodesRequest{})
 		if err != nil {
-			ErrorOutput(
-				err,
-				fmt.Sprintf("Error converting ID to integer: %s", err),
-				output,
-			)
-		}
-
-		ctx, client, conn, cancel := newHeadscaleCLIWithConfig()
-		defer cancel()
-		defer conn.Close()
-
-		request := &v1.ListNodesRequest{}
-
-		response, err := client.ListNodes(ctx, request)
-		if err != nil {
-			ErrorOutput(
-				err,
-				"Cannot get nodes: "+status.Convert(err).Message(),
-				output,
-			)
+			return fmt.Errorf("listing nodes: %w", err)
 		}
 
 		nodes := response.GetNodes()
@@ -219,6 +128,7 @@ var listNodeRoutesCmd = &cobra.Command{
 			for _, node := range response.GetNodes() {
 				if node.GetId() == identifier {
 					nodes = []*v1.Node{node}
+
 					break
 				}
 			}
@@ -228,73 +138,51 @@ var listNodeRoutesCmd = &cobra.Command{
 			return (n.GetSubnetRoutes() != nil && len(n.GetSubnetRoutes()) > 0) || (n.GetApprovedRoutes() != nil && len(n.GetApprovedRoutes()) > 0) || (n.GetAvailableRoutes() != nil && len(n.GetAvailableRoutes()) > 0)
 		})
 
-		if output != "" {
-			SuccessOutput(nodes, "", output)
-			return
-		}
-
-		tableData, err := nodeRoutesToPtables(nodes)
-		if err != nil {
-			ErrorOutput(err, fmt.Sprintf("Error converting to table: %s", err), output)
-		}
-
-		err = pterm.DefaultTable.WithHasHeader().WithData(tableData).Render()
-		if err != nil {
-			ErrorOutput(
-				err,
-				fmt.Sprintf("Failed to render pterm table: %s", err),
-				output,
-			)
-		}
-	},
+		return printListOutput(cmd, nodes, func() error {
+			return pterm.DefaultTable.WithHasHeader().WithData(nodeRoutesToPtables(nodes)).Render()
+		})
+	}),
 }
 
 var expireNodeCmd = &cobra.Command{
-	Use:     "expire",
-	Short:   "Expire (log out) a node in your network",
-	Long:    "Expiring a node will keep the node in the database and force it to reauthenticate.",
+	Use:   "expire",
+	Short: "Expire (log out) a node in your network",
+	Long: `Expiring a node will keep the node in the database and force it to reauthenticate.
+
+Use --disable to disable key expiry (node will never expire).`,
 	Aliases: []string{"logout", "exp", "e"},
-	Run: func(cmd *cobra.Command, args []string) {
-		output, _ := cmd.Flags().GetString("output")
+	RunE: grpcRunE(func(ctx context.Context, client v1.HeadscaleServiceClient, cmd *cobra.Command, args []string) error {
+		identifier, _ := cmd.Flags().GetUint64("identifier")
+		disableExpiry, _ := cmd.Flags().GetBool("disable")
 
-		identifier, err := cmd.Flags().GetUint64("identifier")
-		if err != nil {
-			ErrorOutput(
-				err,
-				fmt.Sprintf("Error converting ID to integer: %s", err),
-				output,
-			)
+		// Handle disable expiry - node will never expire.
+		if disableExpiry {
+			request := &v1.ExpireNodeRequest{
+				NodeId:        identifier,
+				DisableExpiry: true,
+			}
+
+			response, err := client.ExpireNode(ctx, request)
+			if err != nil {
+				return fmt.Errorf("disabling node expiry: %w", err)
+			}
+
+			return printOutput(cmd, response.GetNode(), "Node expiry disabled")
 		}
 
-		expiry, err := cmd.Flags().GetString("expiry")
-		if err != nil {
-			ErrorOutput(
-				err,
-				fmt.Sprintf("Error converting expiry to string: %s", err),
-				output,
-			)
+		expiry, _ := cmd.Flags().GetString("expiry")
 
-			return
-		}
 		now := time.Now()
+
 		expiryTime := now
 		if expiry != "" {
+			var err error
 			expiryTime, err = time.Parse(time.RFC3339, expiry)
 			if err != nil {
-				ErrorOutput(
-					err,
-					fmt.Sprintf("Error converting expiry to string: %s", err),
-					output,
-				)
-
-				return
+				return fmt.Errorf("parsing expiry time: %w", err)
 			}
 		}
 
-		ctx, client, conn, cancel := newHeadscaleCLIWithConfig()
-		defer cancel()
-		defer conn.Close()
-
 		request := &v1.ExpireNodeRequest{
 			NodeId: identifier,
 			Expiry: timestamppb.New(expiryTime),
@@ -302,47 +190,28 @@ var expireNodeCmd = &cobra.Command{
 
 		response, err := client.ExpireNode(ctx, request)
 		if err != nil {
-			ErrorOutput(
-				err,
-				fmt.Sprintf(
-					"Cannot expire node: %s\n",
-					status.Convert(err).Message(),
-				),
-				output,
-			)
+			return fmt.Errorf("expiring node: %w", err)
 		}
 
 		if now.Equal(expiryTime) || now.After(expiryTime) {
-			SuccessOutput(response.GetNode(), "Node expired", output)
-		} else {
-			SuccessOutput(response.GetNode(), "Node expiration updated", output)
+			return printOutput(cmd, response.GetNode(), "Node expired")
 		}
-	},
+
+		return printOutput(cmd, response.GetNode(), "Node expiration updated")
+	}),
 }
 
 var renameNodeCmd = &cobra.Command{
 	Use:   "rename NEW_NAME",
 	Short: "Renames a node in your network",
-	Run: func(cmd *cobra.Command, args []string) {
-		output, _ := cmd.Flags().GetString("output")
-
-		identifier, err := cmd.Flags().GetUint64("identifier")
-		if err != nil {
-			ErrorOutput(
-				err,
-				fmt.Sprintf("Error converting ID to integer: %s", err),
-				output,
-			)
-		}
-
-		ctx, client, conn, cancel := newHeadscaleCLIWithConfig()
-		defer cancel()
-		defer conn.Close()
+	RunE: grpcRunE(func(ctx context.Context, client v1.HeadscaleServiceClient, cmd *cobra.Command, args []string) error {
+		identifier, _ := cmd.Flags().GetUint64("identifier")
 
 		newName := ""
 		if len(args) > 0 {
 			newName = args[0]
 		}
+
 		request := &v1.RenameNodeRequest{
 			NodeId:  identifier,
 			NewName: newName,
@@ -350,39 +219,19 @@ var renameNodeCmd = &cobra.Command{
 
 		response, err := client.RenameNode(ctx, request)
 		if err != nil {
-			ErrorOutput(
-				err,
-				fmt.Sprintf(
-					"Cannot rename node: %s\n",
-					status.Convert(err).Message(),
-				),
-				output,
-			)
+			return fmt.Errorf("renaming node: %w", err)
 		}
 
-		SuccessOutput(response.GetNode(), "Node renamed", output)
-	},
+		return printOutput(cmd, response.GetNode(), "Node renamed")
+	}),
 }
 
 var deleteNodeCmd = &cobra.Command{
 	Use:     "delete",
 	Short:   "Delete a node",
 	Aliases: []string{"del"},
-	Run: func(cmd *cobra.Command, args []string) {
-		output, _ := cmd.Flags().GetString("output")
-
-		identifier, err := cmd.Flags().GetUint64("identifier")
-		if err != nil {
-			ErrorOutput(
-				err,
-				fmt.Sprintf("Error converting ID to integer: %s", err),
-				output,
-			)
-		}
-
-		ctx, client, conn, cancel := newHeadscaleCLIWithConfig()
-		defer cancel()
-		defer conn.Close()
+	RunE: grpcRunE(func(ctx context.Context, client v1.HeadscaleServiceClient, cmd *cobra.Command, args []string) error {
+		identifier, _ := cmd.Flags().GetUint64("identifier")
 
 		getRequest := &v1.GetNodeRequest{
 			NodeId: identifier,
@@ -390,49 +239,31 @@ var deleteNodeCmd = &cobra.Command{
 
 		getResponse, err := client.GetNode(ctx, getRequest)
 		if err != nil {
-			ErrorOutput(
-				err,
-				"Error getting node node: "+status.Convert(err).Message(),
-				output,
-			)
+			return fmt.Errorf("getting node: %w", err)
 		}
 
 		deleteRequest := &v1.DeleteNodeRequest{
 			NodeId: identifier,
 		}
 
-		confirm := false
-		force, _ := cmd.Flags().GetBool("force")
-		if !force {
-			confirm = util.YesNo(fmt.Sprintf(
-				"Do you want to remove the node %s?",
-				getResponse.GetNode().GetName(),
-			))
+		if !confirmAction(cmd, fmt.Sprintf(
+			"Do you want to remove the node %s?",
+			getResponse.GetNode().GetName(),
+		)) {
+			return printOutput(cmd, map[string]string{"Result": "Node not deleted"}, "Node not deleted")
 		}
 
-		if confirm || force {
-			response, err := client.DeleteNode(ctx, deleteRequest)
-			if output != "" {
-				SuccessOutput(response, "", output)
-
-				return
-			}
-			if err != nil {
-				ErrorOutput(
-					err,
-					"Error deleting node: "+status.Convert(err).Message(),
-					output,
-				)
-			}
-			SuccessOutput(
-				map[string]string{"Result": "Node deleted"},
-				"Node deleted",
-				output,
-			)
-		} else {
-			SuccessOutput(map[string]string{"Result": "Node not deleted"}, "Node not deleted", output)
+		_, err = client.DeleteNode(ctx, deleteRequest)
+		if err != nil {
+			return fmt.Errorf("deleting node: %w", err)
 		}
-	},
+
+		return printOutput(
+			cmd,
+			map[string]string{"Result": "Node deleted"},
+			"Node deleted",
+		)
+	}),
 }
 
 var backfillNodeIPsCmd = &cobra.Command{
@@ -450,32 +281,24 @@ all nodes that are missing.
 If you remove IPv4 or IPv6 prefixes from the config,
 it can be run to remove the IPs that should no longer
 be assigned to nodes.`,
-	Run: func(cmd *cobra.Command, args []string) {
-		output, _ := cmd.Flags().GetString("output")
-
-		confirm := false
-
-		force, _ := cmd.Flags().GetBool("force")
-		if !force {
-			confirm = util.YesNo("Are you sure that you want to assign/remove IPs to/from nodes?")
+	RunE: func(cmd *cobra.Command, args []string) error {
+		if !confirmAction(cmd, "Are you sure that you want to assign/remove IPs to/from nodes?") {
+			return nil
 		}
 
-		if confirm || force {
-			ctx, client, conn, cancel := newHeadscaleCLIWithConfig()
-			defer cancel()
-			defer conn.Close()
-
-			changes, err := client.BackfillNodeIPs(ctx, &v1.BackfillNodeIPsRequest{Confirmed: confirm || force})
-			if err != nil {
-				ErrorOutput(
-					err,
-					"Error backfilling IPs: "+status.Convert(err).Message(),
-					output,
-				)
-			}
-
-			SuccessOutput(changes, "Node IPs backfilled successfully", output)
+		ctx, client, conn, cancel, err := newHeadscaleCLIWithConfig()
+		if err != nil {
+			return fmt.Errorf("connecting to headscale: %w", err)
 		}
+		defer cancel()
+		defer conn.Close()
+
+		changes, err := client.BackfillNodeIPs(ctx, &v1.BackfillNodeIPsRequest{Confirmed: true})
+		if err != nil {
+			return fmt.Errorf("backfilling IPs: %w", err)
+		}
+
+		return printOutput(cmd, changes, "Node IPs backfilled successfully")
 	},
 }
 
@@ -506,23 +329,30 @@ func nodesToPtables(
 			ephemeral = true
 		}
 
-		var lastSeen time.Time
-		var lastSeenTime string
+		var (
+			lastSeen     time.Time
+			lastSeenTime string
+		)
+
 		if node.GetLastSeen() != nil {
 			lastSeen = node.GetLastSeen().AsTime()
-			lastSeenTime = lastSeen.Format("2006-01-02 15:04:05")
+			lastSeenTime = lastSeen.Format(HeadscaleDateTimeFormat)
 		}
 
-		var expiry time.Time
-		var expiryTime string
+		var (
+			expiry     time.Time
+			expiryTime string
+		)
+
 		if node.GetExpiry() != nil {
 			expiry = node.GetExpiry().AsTime()
-			expiryTime = expiry.Format("2006-01-02 15:04:05")
+			expiryTime = expiry.Format(HeadscaleDateTimeFormat)
 		} else {
 			expiryTime = "N/A"
 		}
 
 		var machineKey key.MachinePublic
+
 		err := machineKey.UnmarshalText(
 			[]byte(node.GetMachineKey()),
 		)
@@ -531,6 +361,7 @@ func nodesToPtables(
 		}
 
 		var nodeKey key.NodePublic
+
 		err = nodeKey.UnmarshalText(
 			[]byte(node.GetNodeKey()),
 		)
@@ -546,42 +377,39 @@ func nodesToPtables(
 		}
 
 		var expired string
-		if expiry.IsZero() || expiry.After(time.Now()) {
-			expired = pterm.LightGreen("no")
-		} else {
+		if node.GetExpiry() != nil && node.GetExpiry().AsTime().Before(time.Now()) {
 			expired = pterm.LightRed("yes")
+		} else {
+			expired = pterm.LightGreen("no")
 		}
 
-		// TODO(kradalby): as part of CLI rework, we should add the posibility to show "unusable" tags as mentioned in
-		// https://github.com/juanfont/headscale/issues/2981
 		var tagsBuilder strings.Builder
 
 		for _, tag := range node.GetTags() {
 			tagsBuilder.WriteString("\n" + tag)
 		}
 
-		tags := tagsBuilder.String()
-
-		tags = strings.TrimLeft(tags, "\n")
+		tags := strings.TrimLeft(tagsBuilder.String(), "\n")
 
 		var user string
-		if currentUser == "" || (currentUser == node.GetUser().GetName()) {
-			user = pterm.LightMagenta(node.GetUser().GetName())
-		} else {
-			// Shared into this user
-			user = pterm.LightYellow(node.GetUser().GetName())
+		if node.GetUser() != nil {
+			user = node.GetUser().GetName()
 		}
 
-		var IPV4Address string
-		var IPV6Address string
+		var ipBuilder strings.Builder
 		for _, addr := range node.GetIpAddresses() {
-			if netip.MustParseAddr(addr).Is4() {
-				IPV4Address = addr
-			} else {
-				IPV6Address = addr
+			ip, err := netip.ParseAddr(addr)
+			if err == nil {
+				if ipBuilder.Len() > 0 {
+					ipBuilder.WriteString("\n")
+				}
+
+				ipBuilder.WriteString(ip.String())
 			}
 		}
 
+		ipAddresses := ipBuilder.String()
+
 		nodeData := []string{
 			strconv.FormatUint(node.GetId(), util.Base10),
 			node.GetName(),
@@ -590,7 +418,7 @@ func nodesToPtables(
 			nodeKey.ShortString(),
 			user,
 			tags,
-			strings.Join([]string{IPV4Address, IPV6Address}, ", "),
+			ipAddresses,
 			strconv.FormatBool(ephemeral),
 			lastSeenTime,
 			expiryTime,
@@ -608,7 +436,7 @@ func nodesToPtables(
 
 func nodeRoutesToPtables(
 	nodes []*v1.Node,
-) (pterm.TableData, error) {
+) pterm.TableData {
 	tableHeader := []string{
 		"ID",
 		"Hostname",
@@ -632,108 +460,50 @@ func nodeRoutesToPtables(
 		)
 	}
 
-	return tableData, nil
+	return tableData
 }
 
 var tagCmd = &cobra.Command{
 	Use:     "tag",
 	Short:   "Manage the tags of a node",
 	Aliases: []string{"tags", "t"},
-	Run: func(cmd *cobra.Command, args []string) {
-		output, _ := cmd.Flags().GetString("output")
-		ctx, client, conn, cancel := newHeadscaleCLIWithConfig()
-		defer cancel()
-		defer conn.Close()
-
-		// retrieve flags from CLI
-		identifier, err := cmd.Flags().GetUint64("identifier")
-		if err != nil {
-			ErrorOutput(
-				err,
-				fmt.Sprintf("Error converting ID to integer: %s", err),
-				output,
-			)
-		}
-		tagsToSet, err := cmd.Flags().GetStringSlice("tags")
-		if err != nil {
-			ErrorOutput(
-				err,
-				fmt.Sprintf("Error retrieving list of tags to add to node, %v", err),
-				output,
-			)
-		}
+	RunE: grpcRunE(func(ctx context.Context, client v1.HeadscaleServiceClient, cmd *cobra.Command, args []string) error {
+		identifier, _ := cmd.Flags().GetUint64("identifier")
+		tagsToSet, _ := cmd.Flags().GetStringSlice("tags")
 
 		// Sending tags to node
 		request := &v1.SetTagsRequest{
 			NodeId: identifier,
 			Tags:   tagsToSet,
 		}
+
 		resp, err := client.SetTags(ctx, request)
 		if err != nil {
-			ErrorOutput(
-				err,
-				fmt.Sprintf("Error while sending tags to headscale: %s", err),
-				output,
-			)
+			return fmt.Errorf("setting tags: %w", err)
 		}
 
-		if resp != nil {
-			SuccessOutput(
-				resp.GetNode(),
-				"Node updated",
-				output,
-			)
-		}
-	},
+		return printOutput(cmd, resp.GetNode(), "Node updated")
+	}),
 }
 
 var approveRoutesCmd = &cobra.Command{
 	Use:   "approve-routes",
 	Short: "Manage the approved routes of a node",
-	Run: func(cmd *cobra.Command, args []string) {
-		output, _ := cmd.Flags().GetString("output")
-		ctx, client, conn, cancel := newHeadscaleCLIWithConfig()
-		defer cancel()
-		defer conn.Close()
-
-		// retrieve flags from CLI
-		identifier, err := cmd.Flags().GetUint64("identifier")
-		if err != nil {
-			ErrorOutput(
-				err,
-				fmt.Sprintf("Error converting ID to integer: %s", err),
-				output,
-			)
-		}
-		routes, err := cmd.Flags().GetStringSlice("routes")
-		if err != nil {
-			ErrorOutput(
-				err,
-				fmt.Sprintf("Error retrieving list of routes to add to node, %v", err),
-				output,
-			)
-		}
+	RunE: grpcRunE(func(ctx context.Context, client v1.HeadscaleServiceClient, cmd *cobra.Command, args []string) error {
+		identifier, _ := cmd.Flags().GetUint64("identifier")
+		routes, _ := cmd.Flags().GetStringSlice("routes")
 
 		// Sending routes to node
 		request := &v1.SetApprovedRoutesRequest{
 			NodeId: identifier,
 			Routes: routes,
 		}
+
 		resp, err := client.SetApprovedRoutes(ctx, request)
 		if err != nil {
-			ErrorOutput(
-				err,
-				fmt.Sprintf("Error while sending routes to headscale: %s", err),
-				output,
-			)
+			return fmt.Errorf("setting approved routes: %w", err)
 		}
 
-		if resp != nil {
-			SuccessOutput(
-				resp.GetNode(),
-				"Node updated",
-				output,
-			)
-		}
-	},
+		return printOutput(cmd, resp.GetNode(), "Node updated")
+	}),
 }

cmd/headscale/cli/policy.go

@@ -1,24 +1,41 @@
 package cli
 
 import (
+	"errors"
 	"fmt"
-	"io"
 	"os"
 
 	v1 "github.com/juanfont/headscale/gen/go/headscale/v1"
 	"github.com/juanfont/headscale/hscontrol/db"
 	"github.com/juanfont/headscale/hscontrol/policy"
 	"github.com/juanfont/headscale/hscontrol/types"
-	"github.com/juanfont/headscale/hscontrol/util"
-	"github.com/rs/zerolog/log"
 	"github.com/spf13/cobra"
 	"tailscale.com/types/views"
 )
 
 const (
-	bypassFlag = "bypass-grpc-and-access-database-directly"
+	bypassFlag = "bypass-grpc-and-access-database-directly" //nolint:gosec // not a credential
 )
 
+var errAborted = errors.New("command aborted by user")
+
+// bypassDatabase loads the server config and opens the database directly,
+// bypassing the gRPC server. The caller is responsible for closing the
+// returned database handle.
+func bypassDatabase() (*db.HSDatabase, error) {
+	cfg, err := types.LoadServerConfig()
+	if err != nil {
+		return nil, fmt.Errorf("loading config: %w", err)
+	}
+
+	d, err := db.NewHeadscaleDatabase(cfg, nil)
+	if err != nil {
+		return nil, fmt.Errorf("opening database: %w", err)
+	}
+
+	return d, nil
+}
+
 func init() {
 	rootCmd.AddCommand(policyCmd)
 
@@ -26,16 +43,12 @@ func init() {
 	policyCmd.AddCommand(getPolicy)
 
 	setPolicy.Flags().StringP("file", "f", "", "Path to a policy file in HuJSON format")
-	if err := setPolicy.MarkFlagRequired("file"); err != nil {
-		log.Fatal().Err(err).Msg("")
-	}
 	setPolicy.Flags().BoolP(bypassFlag, "", false, "Uses the headscale config to directly access the database, bypassing gRPC and does not require the server to be running")
+	mustMarkRequired(setPolicy, "file")
 	policyCmd.AddCommand(setPolicy)
 
 	checkPolicy.Flags().StringP("file", "f", "", "Path to a policy file in HuJSON format")
-	if err := checkPolicy.MarkFlagRequired("file"); err != nil {
-		log.Fatal().Err(err).Msg("")
-	}
+	mustMarkRequired(checkPolicy, "file")
 	policyCmd.AddCommand(checkPolicy)
 }
 
@@ -48,59 +61,46 @@ var getPolicy = &cobra.Command{
 	Use:     "get",
 	Short:   "Print the current ACL Policy",
 	Aliases: []string{"show", "view", "fetch"},
-	Run: func(cmd *cobra.Command, args []string) {
-		output, _ := cmd.Flags().GetString("output")
-		var policy string
+	RunE: func(cmd *cobra.Command, args []string) error {
+		var policyData string
 		if bypass, _ := cmd.Flags().GetBool(bypassFlag); bypass {
-			confirm := false
-			force, _ := cmd.Flags().GetBool("force")
-			if !force {
-				confirm = util.YesNo("DO NOT run this command if an instance of headscale is running, are you sure headscale is not running?")
+			if !confirmAction(cmd, "DO NOT run this command if an instance of headscale is running, are you sure headscale is not running?") {
+				return errAborted
 			}
 
-			if !confirm && !force {
-				ErrorOutput(nil, "Aborting command", output)
-				return
-			}
-
-			cfg, err := types.LoadServerConfig()
+			d, err := bypassDatabase()
 			if err != nil {
-				ErrorOutput(err, fmt.Sprintf("Failed loading config: %s", err), output)
-			}
-
-			d, err := db.NewHeadscaleDatabase(
-				cfg,
-				nil,
-			)
-			if err != nil {
-				ErrorOutput(err, fmt.Sprintf("Failed to open database: %s", err), output)
+				return err
 			}
+			defer d.Close()
 
 			pol, err := d.GetPolicy()
 			if err != nil {
-				ErrorOutput(err, fmt.Sprintf("Failed loading Policy from database: %s", err), output)
+				return fmt.Errorf("loading policy from database: %w", err)
 			}
 
-			policy = pol.Data
+			policyData = pol.Data
 		} else {
-			ctx, client, conn, cancel := newHeadscaleCLIWithConfig()
+			ctx, client, conn, cancel, err := newHeadscaleCLIWithConfig()
+			if err != nil {
+				return fmt.Errorf("connecting to headscale: %w", err)
+			}
 			defer cancel()
 			defer conn.Close()
 
-			request := &v1.GetPolicyRequest{}
-
-			response, err := client.GetPolicy(ctx, request)
+			response, err := client.GetPolicy(ctx, &v1.GetPolicyRequest{})
 			if err != nil {
-				ErrorOutput(err, fmt.Sprintf("Failed loading ACL Policy: %s", err), output)
+				return fmt.Errorf("loading ACL policy: %w", err)
 			}
 
-			policy = response.GetPolicy()
+			policyData = response.GetPolicy()
 		}
 
-		// TODO(pallabpain): Maybe print this better?
-		// This does not pass output as we dont support yaml, json or json-line
-		// output for this command. It is HuJSON already.
-		SuccessOutput("", policy, "")
+		// This does not pass output format as we don't support yaml, json or
+		// json-line output for this command. It is HuJSON already.
+		fmt.Println(policyData)
+
+		return nil
 	},
 }
 
@@ -111,100 +111,79 @@ var setPolicy = &cobra.Command{
 	Updates the existing ACL Policy with the provided policy. The policy must be a valid HuJSON object.
 	This command only works when the acl.policy_mode is set to "db", and the policy will be stored in the database.`,
 	Aliases: []string{"put", "update"},
-	Run: func(cmd *cobra.Command, args []string) {
-		output, _ := cmd.Flags().GetString("output")
+	RunE: func(cmd *cobra.Command, args []string) error {
 		policyPath, _ := cmd.Flags().GetString("file")
 
-		f, err := os.Open(policyPath)
+		policyBytes, err := os.ReadFile(policyPath)
 		if err != nil {
-			ErrorOutput(err, fmt.Sprintf("Error opening the policy file: %s", err), output)
-		}
-		defer f.Close()
-
-		policyBytes, err := io.ReadAll(f)
-		if err != nil {
-			ErrorOutput(err, fmt.Sprintf("Error reading the policy file: %s", err), output)
+			return fmt.Errorf("reading policy file: %w", err)
 		}
 
 		if bypass, _ := cmd.Flags().GetBool(bypassFlag); bypass {
-			confirm := false
-			force, _ := cmd.Flags().GetBool("force")
-			if !force {
-				confirm = util.YesNo("DO NOT run this command if an instance of headscale is running, are you sure headscale is not running?")
+			if !confirmAction(cmd, "DO NOT run this command if an instance of headscale is running, are you sure headscale is not running?") {
+				return errAborted
 			}
 
-			if !confirm && !force {
-				ErrorOutput(nil, "Aborting command", output)
-				return
-			}
-
-			cfg, err := types.LoadServerConfig()
+			d, err := bypassDatabase()
 			if err != nil {
-				ErrorOutput(err, fmt.Sprintf("Failed loading config: %s", err), output)
-			}
-
-			d, err := db.NewHeadscaleDatabase(
-				cfg,
-				nil,
-			)
-			if err != nil {
-				ErrorOutput(err, fmt.Sprintf("Failed to open database: %s", err), output)
+				return err
 			}
+			defer d.Close()
 
 			users, err := d.ListUsers()
 			if err != nil {
-				ErrorOutput(err, fmt.Sprintf("Failed to load users for policy validation: %s", err), output)
+				return fmt.Errorf("loading users for policy validation: %w", err)
 			}
 
 			_, err = policy.NewPolicyManager(policyBytes, users, views.Slice[types.NodeView]{})
 			if err != nil {
-				ErrorOutput(err, fmt.Sprintf("Error parsing the policy file: %s", err), output)
-				return
+				return fmt.Errorf("parsing policy file: %w", err)
 			}
 
 			_, err = d.SetPolicy(string(policyBytes))
 			if err != nil {
-				ErrorOutput(err, fmt.Sprintf("Failed to set ACL Policy: %s", err), output)
+				return fmt.Errorf("setting ACL policy: %w", err)
 			}
 		} else {
 			request := &v1.SetPolicyRequest{Policy: string(policyBytes)}
 
-			ctx, client, conn, cancel := newHeadscaleCLIWithConfig()
+			ctx, client, conn, cancel, err := newHeadscaleCLIWithConfig()
+			if err != nil {
+				return fmt.Errorf("connecting to headscale: %w", err)
+			}
 			defer cancel()
 			defer conn.Close()
 
-			if _, err := client.SetPolicy(ctx, request); err != nil {
-				ErrorOutput(err, fmt.Sprintf("Failed to set ACL Policy: %s", err), output)
+			_, err = client.SetPolicy(ctx, request)
+			if err != nil {
+				return fmt.Errorf("setting ACL policy: %w", err)
 			}
 		}
 
-		SuccessOutput(nil, "Policy updated.", "")
+		fmt.Println("Policy updated.")
+
+		return nil
 	},
 }
 
 var checkPolicy = &cobra.Command{
 	Use:   "check",
 	Short: "Check the Policy file for errors",
-	Run: func(cmd *cobra.Command, args []string) {
-		output, _ := cmd.Flags().GetString("output")
+	RunE: func(cmd *cobra.Command, args []string) error {
 		policyPath, _ := cmd.Flags().GetString("file")
 
-		f, err := os.Open(policyPath)
+		policyBytes, err := os.ReadFile(policyPath)
 		if err != nil {
-			ErrorOutput(err, fmt.Sprintf("Error opening the policy file: %s", err), output)
-		}
-		defer f.Close()
-
-		policyBytes, err := io.ReadAll(f)
-		if err != nil {
-			ErrorOutput(err, fmt.Sprintf("Error reading the policy file: %s", err), output)
+			return fmt.Errorf("reading policy file: %w", err)
 		}
 
 		_, err = policy.NewPolicyManager(policyBytes, nil, views.Slice[types.NodeView]{})
 		if err != nil {
-			ErrorOutput(err, fmt.Sprintf("Error parsing the policy file: %s", err), output)
+			return fmt.Errorf("parsing policy file: %w", err)
 		}
 
-		SuccessOutput(nil, "Policy is valid", "")
+		fmt.Println("Policy is valid")
+
+		return nil
 	},
 }

cmd/headscale/cli/preauthkeys.go

@@ -1,16 +1,15 @@
 package cli
 
 import (
+	"context"
 	"fmt"
 	"strconv"
 	"strings"
-	"time"
 
 	v1 "github.com/juanfont/headscale/gen/go/headscale/v1"
-	"github.com/prometheus/common/model"
+	"github.com/juanfont/headscale/hscontrol/util"
 	"github.com/pterm/pterm"
 	"github.com/spf13/cobra"
-	"google.golang.org/protobuf/types/known/timestamppb"
 )
 
 const (
@@ -46,203 +45,134 @@ var listPreAuthKeys = &cobra.Command{
 	Use:     "list",
 	Short:   "List all preauthkeys",
 	Aliases: []string{"ls", "show"},
-	Run: func(cmd *cobra.Command, args []string) {
-		output, _ := cmd.Flags().GetString("output")
-
-		ctx, client, conn, cancel := newHeadscaleCLIWithConfig()
-		defer cancel()
-		defer conn.Close()
-
+	RunE: grpcRunE(func(ctx context.Context, client v1.HeadscaleServiceClient, cmd *cobra.Command, args []string) error {
 		response, err := client.ListPreAuthKeys(ctx, &v1.ListPreAuthKeysRequest{})
 		if err != nil {
-			ErrorOutput(
-				err,
-				fmt.Sprintf("Error getting the list of keys: %s", err),
-				output,
-			)
-
-			return
+			return fmt.Errorf("listing preauthkeys: %w", err)
 		}
 
-		if output != "" {
-			SuccessOutput(response.GetPreAuthKeys(), "", output)
-		}
-
-		tableData := pterm.TableData{
-			{
-				"ID",
-				"Key/Prefix",
-				"Reusable",
-				"Ephemeral",
-				"Used",
-				"Expiration",
-				"Created",
-				"Owner",
-			},
-		}
-		for _, key := range response.GetPreAuthKeys() {
-			expiration := "-"
-			if key.GetExpiration() != nil {
-				expiration = ColourTime(key.GetExpiration().AsTime())
+		return printListOutput(cmd, response.GetPreAuthKeys(), func() error {
+			tableData := pterm.TableData{
+				{
+					"ID",
+					"Key/Prefix",
+					"Reusable",
+					"Ephemeral",
+					"Used",
+					"Expiration",
+					"Created",
+					"Owner",
+				},
 			}
 
-			var owner string
-			if len(key.GetAclTags()) > 0 {
-				owner = strings.Join(key.GetAclTags(), "\n")
-			} else if key.GetUser() != nil {
-				owner = key.GetUser().GetName()
-			} else {
-				owner = "-"
+			for _, key := range response.GetPreAuthKeys() {
+				expiration := "-"
+				if key.GetExpiration() != nil {
+					expiration = ColourTime(key.GetExpiration().AsTime())
+				}
+
+				var owner string
+				if len(key.GetAclTags()) > 0 {
+					owner = strings.Join(key.GetAclTags(), "\n")
+				} else if key.GetUser() != nil {
+					owner = key.GetUser().GetName()
+				} else {
+					owner = "-"
+				}
+
+				tableData = append(tableData, []string{
+					strconv.FormatUint(key.GetId(), util.Base10),
+					key.GetKey(),
+					strconv.FormatBool(key.GetReusable()),
+					strconv.FormatBool(key.GetEphemeral()),
+					strconv.FormatBool(key.GetUsed()),
+					expiration,
+					key.GetCreatedAt().AsTime().Format(HeadscaleDateTimeFormat),
+					owner,
+				})
 			}
 
-			tableData = append(tableData, []string{
-				strconv.FormatUint(key.GetId(), 10),
-				key.GetKey(),
-				strconv.FormatBool(key.GetReusable()),
-				strconv.FormatBool(key.GetEphemeral()),
-				strconv.FormatBool(key.GetUsed()),
-				expiration,
-				key.GetCreatedAt().AsTime().Format("2006-01-02 15:04:05"),
-				owner,
-			})
-
-		}
-		err = pterm.DefaultTable.WithHasHeader().WithData(tableData).Render()
-		if err != nil {
-			ErrorOutput(
-				err,
-				fmt.Sprintf("Failed to render pterm table: %s", err),
-				output,
-			)
-		}
-	},
+			return pterm.DefaultTable.WithHasHeader().WithData(tableData).Render()
+		})
+	}),
 }
 
 var createPreAuthKeyCmd = &cobra.Command{
 	Use:     "create",
 	Short:   "Creates a new preauthkey",
 	Aliases: []string{"c", "new"},
-	Run: func(cmd *cobra.Command, args []string) {
-		output, _ := cmd.Flags().GetString("output")
-
+	RunE: grpcRunE(func(ctx context.Context, client v1.HeadscaleServiceClient, cmd *cobra.Command, args []string) error {
 		user, _ := cmd.Flags().GetUint64("user")
 		reusable, _ := cmd.Flags().GetBool("reusable")
 		ephemeral, _ := cmd.Flags().GetBool("ephemeral")
 		tags, _ := cmd.Flags().GetStringSlice("tags")
 
-		request := &v1.CreatePreAuthKeyRequest{
-			User:      user,
-			Reusable:  reusable,
-			Ephemeral: ephemeral,
-			AclTags:   tags,
-		}
-
-		durationStr, _ := cmd.Flags().GetString("expiration")
-
-		duration, err := model.ParseDuration(durationStr)
+		expiration, err := expirationFromFlag(cmd)
 		if err != nil {
-			ErrorOutput(
-				err,
-				fmt.Sprintf("Could not parse duration: %s\n", err),
-				output,
-			)
+			return err
 		}
 
-		expiration := time.Now().UTC().Add(time.Duration(duration))
-
-		request.Expiration = timestamppb.New(expiration)
-
-		ctx, client, conn, cancel := newHeadscaleCLIWithConfig()
-		defer cancel()
-		defer conn.Close()
+		request := &v1.CreatePreAuthKeyRequest{
+			User:       user,
+			Reusable:   reusable,
+			Ephemeral:  ephemeral,
+			AclTags:    tags,
+			Expiration: expiration,
+		}
 
 		response, err := client.CreatePreAuthKey(ctx, request)
 		if err != nil {
-			ErrorOutput(
-				err,
-				fmt.Sprintf("Cannot create Pre Auth Key: %s\n", err),
-				output,
-			)
+			return fmt.Errorf("creating preauthkey: %w", err)
 		}
 
-		SuccessOutput(response.GetPreAuthKey(), response.GetPreAuthKey().GetKey(), output)
-	},
+		return printOutput(cmd, response.GetPreAuthKey(), response.GetPreAuthKey().GetKey())
+	}),
 }
 
 var expirePreAuthKeyCmd = &cobra.Command{
 	Use:     "expire",
 	Short:   "Expire a preauthkey",
 	Aliases: []string{"revoke", "exp", "e"},
-	Run: func(cmd *cobra.Command, args []string) {
-		output, _ := cmd.Flags().GetString("output")
+	RunE: grpcRunE(func(ctx context.Context, client v1.HeadscaleServiceClient, cmd *cobra.Command, args []string) error {
 		id, _ := cmd.Flags().GetUint64("id")
 
 		if id == 0 {
-			ErrorOutput(
-				errMissingParameter,
-				"Error: missing --id parameter",
-				output,
-			)
-
-			return
+			return fmt.Errorf("missing --id parameter: %w", errMissingParameter)
 		}
 
-		ctx, client, conn, cancel := newHeadscaleCLIWithConfig()
-		defer cancel()
-		defer conn.Close()
-
 		request := &v1.ExpirePreAuthKeyRequest{
 			Id: id,
 		}
 
 		response, err := client.ExpirePreAuthKey(ctx, request)
 		if err != nil {
-			ErrorOutput(
-				err,
-				fmt.Sprintf("Cannot expire Pre Auth Key: %s\n", err),
-				output,
-			)
+			return fmt.Errorf("expiring preauthkey: %w", err)
 		}
 
-		SuccessOutput(response, "Key expired", output)
-	},
+		return printOutput(cmd, response, "Key expired")
+	}),
 }
 
 var deletePreAuthKeyCmd = &cobra.Command{
 	Use:     "delete",
 	Short:   "Delete a preauthkey",
 	Aliases: []string{"del", "rm", "d"},
-	Run: func(cmd *cobra.Command, args []string) {
-		output, _ := cmd.Flags().GetString("output")
+	RunE: grpcRunE(func(ctx context.Context, client v1.HeadscaleServiceClient, cmd *cobra.Command, args []string) error {
 		id, _ := cmd.Flags().GetUint64("id")
 
 		if id == 0 {
-			ErrorOutput(
-				errMissingParameter,
-				"Error: missing --id parameter",
-				output,
-			)
-
-			return
+			return fmt.Errorf("missing --id parameter: %w", errMissingParameter)
 		}
 
-		ctx, client, conn, cancel := newHeadscaleCLIWithConfig()
-		defer cancel()
-		defer conn.Close()
-
 		request := &v1.DeletePreAuthKeyRequest{
 			Id: id,
 		}
 
 		response, err := client.DeletePreAuthKey(ctx, request)
 		if err != nil {
-			ErrorOutput(
-				err,
-				fmt.Sprintf("Cannot delete Pre Auth Key: %s\n", err),
-				output,
-			)
+			return fmt.Errorf("deleting preauthkey: %w", err)
 		}
 
-		SuccessOutput(response, "Key deleted", output)
-	},
+		return printOutput(cmd, response, "Key deleted")
+	}),
 }

cmd/headscale/cli/pterm_style.go

@@ -7,7 +7,7 @@ import (
 )
 
 func ColourTime(date time.Time) string {
-	dateStr := date.Format("2006-01-02 15:04:05")
+	dateStr := date.Format(HeadscaleDateTimeFormat)
 
 	if date.After(time.Now()) {
 		dateStr = pterm.LightGreen(dateStr)

cmd/headscale/cli/root.go

@@ -1,7 +1,6 @@
 package cli
 
 import (
-	"fmt"
 	"os"
 	"runtime"
 	"slices"
@@ -15,10 +14,6 @@ import (
 	"github.com/tcnksm/go-latest"
 )
 
-const (
-	deprecateNamespaceMessage = "use --user"
-)
-
 var cfgFile string = ""
 
 func init() {
@@ -39,25 +34,34 @@ func init() {
 		StringP("output", "o", "", "Output format. Empty for human-readable, 'json', 'json-line' or 'yaml'")
 	rootCmd.PersistentFlags().
 		Bool("force", false, "Disable prompts and forces the execution")
+
+	// Re-enable usage output only for flag-parsing errors; runtime errors
+	// from RunE should never dump usage text.
+	rootCmd.SetFlagErrorFunc(func(cmd *cobra.Command, err error) error {
+		cmd.SilenceUsage = false
+
+		return err
+	})
 }
 
 func initConfig() {
 	if cfgFile == "" {
 		cfgFile = os.Getenv("HEADSCALE_CONFIG")
 	}
+
 	if cfgFile != "" {
 		err := types.LoadConfig(cfgFile, true)
 		if err != nil {
-			log.Fatal().Caller().Err(err).Msgf("Error loading config file %s", cfgFile)
+			log.Fatal().Caller().Err(err).Msgf("error loading config file %s", cfgFile)
 		}
 	} else {
 		err := types.LoadConfig("", false)
 		if err != nil {
-			log.Fatal().Caller().Err(err).Msgf("Error loading config")
+			log.Fatal().Caller().Err(err).Msgf("error loading config")
 		}
 	}
 
-	machineOutput := HasMachineOutputFlag()
+	machineOutput := hasMachineOutputFlag()
 
 	// If the user has requested a "node" readable format,
 	// then disable login so the output remains valid.
@@ -80,6 +84,7 @@ func initConfig() {
 				Repository:    "headscale",
 				TagFilterFunc: filterPreReleasesIfStable(func() string { return versionInfo.Version }),
 			}
+
 			res, err := latest.Check(githubTag, versionInfo.Version)
 			if err == nil && res.Outdated {
 				//nolint
@@ -101,6 +106,7 @@ func isPreReleaseVersion(version string) bool {
 			return true
 		}
 	}
+
 	return false
 }
 
@@ -137,11 +143,15 @@ var rootCmd = &cobra.Command{
 headscale is an open source implementation of the Tailscale control server
 
 https://github.com/juanfont/headscale`,
+	SilenceErrors: true,
+	SilenceUsage:  true,
 }
 
 func Execute() {
-	if err := rootCmd.Execute(); err != nil {
-		fmt.Fprintln(os.Stderr, err)
+	cmd, err := rootCmd.ExecuteC()
+	if err != nil {
+		outputFormat, _ := cmd.Flags().GetString("output")
+		printError(err, outputFormat)
 		os.Exit(1)
 	}
 }

cmd/headscale/cli/serve.go

@@ -5,7 +5,6 @@ import (
 	"fmt"
 	"net/http"
 
-	"github.com/rs/zerolog/log"
 	"github.com/spf13/cobra"
 	"github.com/tailscale/squibble"
 )
@@ -17,24 +16,22 @@ func init() {
 var serveCmd = &cobra.Command{
 	Use:   "serve",
 	Short: "Launches the headscale server",
-	Args: func(cmd *cobra.Command, args []string) error {
-		return nil
-	},
-	Run: func(cmd *cobra.Command, args []string) {
+	RunE: func(cmd *cobra.Command, args []string) error {
 		app, err := newHeadscaleServerWithConfig()
 		if err != nil {
-			var squibbleErr squibble.ValidationError
-			if errors.As(err, &squibbleErr) {
+			if squibbleErr, ok := errors.AsType[squibble.ValidationError](err); ok {
 				fmt.Printf("SQLite schema failed to validate:\n")
 				fmt.Println(squibbleErr.Diff)
 			}
 
-			log.Fatal().Caller().Err(err).Msg("Error initializing")
+			return fmt.Errorf("initializing: %w", err)
 		}
 
 		err = app.Serve()
 		if err != nil && !errors.Is(err, http.ErrServerClosed) {
-			log.Fatal().Caller().Err(err).Msg("Headscale ran into an error and had to shut down.")
+			return fmt.Errorf("headscale ran into an error and had to shut down: %w", err)
 		}
+
+		return nil
 	},
 }

cmd/headscale/cli/users.go

@@ -1,6 +1,7 @@
 package cli
 
 import (
+	"context"
 	"errors"
 	"fmt"
 	"net/url"
@@ -8,10 +9,16 @@ import (
 
 	v1 "github.com/juanfont/headscale/gen/go/headscale/v1"
 	"github.com/juanfont/headscale/hscontrol/util"
+	"github.com/juanfont/headscale/hscontrol/util/zlog/zf"
 	"github.com/pterm/pterm"
 	"github.com/rs/zerolog/log"
 	"github.com/spf13/cobra"
-	"google.golang.org/grpc/status"
+)
+
+// CLI user errors.
+var (
+	errFlagRequired       = errors.New("--name or --identifier flag is required")
+	errMultipleUsersMatch = errors.New("multiple users match query, specify an ID")
 )
 
 func usernameAndIDFlag(cmd *cobra.Command) {
@@ -20,20 +27,21 @@ func usernameAndIDFlag(cmd *cobra.Command) {
 }
 
 // usernameAndIDFromFlag returns the username and ID from the flags of the command.
-// If both are empty, it will exit the program with an error.
-func usernameAndIDFromFlag(cmd *cobra.Command) (uint64, string) {
+func usernameAndIDFromFlag(cmd *cobra.Command) (uint64, string, error) {
 	username, _ := cmd.Flags().GetString("name")
+
 	identifier, _ := cmd.Flags().GetInt64("identifier")
 	if username == "" && identifier < 0 {
-		err := errors.New("--name or --identifier flag is required")
-		ErrorOutput(
-			err,
-			"Cannot rename user: "+status.Convert(err).Message(),
-			"",
-		)
+		return 0, "", errFlagRequired
 	}
 
-	return uint64(identifier), username
+	// Normalise unset/negative identifiers to 0 so the uint64
+	// conversion does not produce a bogus large value.
+	if identifier < 0 {
+		identifier = 0
+	}
+
+	return uint64(identifier), username, nil //nolint:gosec // identifier is clamped to >= 0 above
 }
 
 func init() {
@@ -50,15 +58,13 @@ func init() {
 	userCmd.AddCommand(renameUserCmd)
 	usernameAndIDFlag(renameUserCmd)
 	renameUserCmd.Flags().StringP("new-name", "r", "", "New username")
-	renameNodeCmd.MarkFlagRequired("new-name")
+	mustMarkRequired(renameUserCmd, "new-name")
 }
 
-var errMissingParameter = errors.New("missing parameters")
-
 var userCmd = &cobra.Command{
 	Use:     "users",
 	Short:   "Manage the users of Headscale",
-	Aliases: []string{"user", "namespace", "namespaces", "ns"},
+	Aliases: []string{"user"},
 }
 
 var createUserCmd = &cobra.Command{
@@ -72,16 +78,10 @@ var createUserCmd = &cobra.Command{
 
 		return nil
 	},
-	Run: func(cmd *cobra.Command, args []string) {
-		output, _ := cmd.Flags().GetString("output")
-
+	RunE: grpcRunE(func(ctx context.Context, client v1.HeadscaleServiceClient, cmd *cobra.Command, args []string) error {
 		userName := args[0]
 
-		ctx, client, conn, cancel := newHeadscaleCLIWithConfig()
-		defer cancel()
-		defer conn.Close()
-
-		log.Trace().Interface("client", client).Msg("Obtained gRPC client")
+		log.Trace().Interface(zf.Client, client).Msg("obtained gRPC client")
 
 		request := &v1.CreateUserRequest{Name: userName}
 
@@ -94,108 +94,73 @@ var createUserCmd = &cobra.Command{
 		}
 
 		if pictureURL, _ := cmd.Flags().GetString("picture-url"); pictureURL != "" {
-			if _, err := url.Parse(pictureURL); err != nil {
-				ErrorOutput(
-					err,
-					fmt.Sprintf(
-						"Invalid Picture URL: %s",
-						err,
-					),
-					output,
-				)
+			if _, err := url.Parse(pictureURL); err != nil { //nolint:noinlineerr
+				return fmt.Errorf("invalid picture URL: %w", err)
 			}
+
 			request.PictureUrl = pictureURL
 		}
 
-		log.Trace().Interface("request", request).Msg("Sending CreateUser request")
+		log.Trace().Interface(zf.Request, request).Msg("sending CreateUser request")
+
 		response, err := client.CreateUser(ctx, request)
 		if err != nil {
-			ErrorOutput(
-				err,
-				"Cannot create user: "+status.Convert(err).Message(),
-				output,
-			)
+			return fmt.Errorf("creating user: %w", err)
 		}
 
-		SuccessOutput(response.GetUser(), "User created", output)
-	},
+		return printOutput(cmd, response.GetUser(), "User created")
+	}),
 }
 
 var destroyUserCmd = &cobra.Command{
 	Use:     "destroy --identifier ID or --name NAME",
 	Short:   "Destroys a user",
 	Aliases: []string{"delete"},
-	Run: func(cmd *cobra.Command, args []string) {
-		output, _ := cmd.Flags().GetString("output")
+	RunE: grpcRunE(func(ctx context.Context, client v1.HeadscaleServiceClient, cmd *cobra.Command, args []string) error {
+		id, username, err := usernameAndIDFromFlag(cmd)
+		if err != nil {
+			return err
+		}
 
-		id, username := usernameAndIDFromFlag(cmd)
 		request := &v1.ListUsersRequest{
 			Name: username,
 			Id:   id,
 		}
 
-		ctx, client, conn, cancel := newHeadscaleCLIWithConfig()
-		defer cancel()
-		defer conn.Close()
-
 		users, err := client.ListUsers(ctx, request)
 		if err != nil {
-			ErrorOutput(
-				err,
-				"Error: "+status.Convert(err).Message(),
-				output,
-			)
+			return fmt.Errorf("listing users: %w", err)
 		}
 
 		if len(users.GetUsers()) != 1 {
-			err := errors.New("Unable to determine user to delete, query returned multiple users, use ID")
-			ErrorOutput(
-				err,
-				"Error: "+status.Convert(err).Message(),
-				output,
-			)
+			return errMultipleUsersMatch
 		}
 
 		user := users.GetUsers()[0]
 
-		confirm := false
-		force, _ := cmd.Flags().GetBool("force")
-		if !force {
-			confirm = util.YesNo(fmt.Sprintf(
-				"Do you want to remove the user %q (%d) and any associated preauthkeys?",
-				user.GetName(), user.GetId(),
-			))
+		if !confirmAction(cmd, fmt.Sprintf(
+			"Do you want to remove the user %q (%d) and any associated preauthkeys?",
+			user.GetName(), user.GetId(),
+		)) {
+			return printOutput(cmd, map[string]string{"Result": "User not destroyed"}, "User not destroyed")
 		}
 
-		if confirm || force {
-			request := &v1.DeleteUserRequest{Id: user.GetId()}
+		deleteRequest := &v1.DeleteUserRequest{Id: user.GetId()}
 
-			response, err := client.DeleteUser(ctx, request)
-			if err != nil {
-				ErrorOutput(
-					err,
-					"Cannot destroy user: "+status.Convert(err).Message(),
-					output,
-				)
-			}
-			SuccessOutput(response, "User destroyed", output)
-		} else {
-			SuccessOutput(map[string]string{"Result": "User not destroyed"}, "User not destroyed", output)
+		response, err := client.DeleteUser(ctx, deleteRequest)
+		if err != nil {
+			return fmt.Errorf("destroying user: %w", err)
 		}
-	},
+
+		return printOutput(cmd, response, "User destroyed")
+	}),
 }
 
 var listUsersCmd = &cobra.Command{
 	Use:     "list",
 	Short:   "List all the users",
 	Aliases: []string{"ls", "show"},
-	Run: func(cmd *cobra.Command, args []string) {
-		output, _ := cmd.Flags().GetString("output")
-
-		ctx, client, conn, cancel := newHeadscaleCLIWithConfig()
-		defer cancel()
-		defer conn.Close()
-
+	RunE: grpcRunE(func(ctx context.Context, client v1.HeadscaleServiceClient, cmd *cobra.Command, args []string) error {
 		request := &v1.ListUsersRequest{}
 
 		id, _ := cmd.Flags().GetInt64("identifier")
@@ -214,53 +179,39 @@ var listUsersCmd = &cobra.Command{
 
 		response, err := client.ListUsers(ctx, request)
 		if err != nil {
-			ErrorOutput(
-				err,
-				"Cannot get users: "+status.Convert(err).Message(),
-				output,
-			)
+			return fmt.Errorf("listing users: %w", err)
 		}
 
-		if output != "" {
-			SuccessOutput(response.GetUsers(), "", output)
-		}
+		return printListOutput(cmd, response.GetUsers(), func() error {
+			tableData := pterm.TableData{{"ID", "Name", "Username", "Email", "Created"}}
+			for _, user := range response.GetUsers() {
+				tableData = append(
+					tableData,
+					[]string{
+						strconv.FormatUint(user.GetId(), util.Base10),
+						user.GetDisplayName(),
+						user.GetName(),
+						user.GetEmail(),
+						user.GetCreatedAt().AsTime().Format(HeadscaleDateTimeFormat),
+					},
+				)
+			}
 
-		tableData := pterm.TableData{{"ID", "Name", "Username", "Email", "Created"}}
-		for _, user := range response.GetUsers() {
-			tableData = append(
-				tableData,
-				[]string{
-					strconv.FormatUint(user.GetId(), 10),
-					user.GetDisplayName(),
-					user.GetName(),
-					user.GetEmail(),
-					user.GetCreatedAt().AsTime().Format("2006-01-02 15:04:05"),
-				},
-			)
-		}
-		err = pterm.DefaultTable.WithHasHeader().WithData(tableData).Render()
-		if err != nil {
-			ErrorOutput(
-				err,
-				fmt.Sprintf("Failed to render pterm table: %s", err),
-				output,
-			)
-		}
-	},
+			return pterm.DefaultTable.WithHasHeader().WithData(tableData).Render()
+		})
+	}),
 }
 
 var renameUserCmd = &cobra.Command{
 	Use:     "rename",
 	Short:   "Renames a user",
 	Aliases: []string{"mv"},
-	Run: func(cmd *cobra.Command, args []string) {
-		output, _ := cmd.Flags().GetString("output")
+	RunE: grpcRunE(func(ctx context.Context, client v1.HeadscaleServiceClient, cmd *cobra.Command, args []string) error {
+		id, username, err := usernameAndIDFromFlag(cmd)
+		if err != nil {
+			return err
+		}
 
-		ctx, client, conn, cancel := newHeadscaleCLIWithConfig()
-		defer cancel()
-		defer conn.Close()
-
-		id, username := usernameAndIDFromFlag(cmd)
 		listReq := &v1.ListUsersRequest{
 			Name: username,
 			Id:   id,
@@ -268,20 +219,11 @@ var renameUserCmd = &cobra.Command{
 
 		users, err := client.ListUsers(ctx, listReq)
 		if err != nil {
-			ErrorOutput(
-				err,
-				"Error: "+status.Convert(err).Message(),
-				output,
-			)
+			return fmt.Errorf("listing users: %w", err)
 		}
 
 		if len(users.GetUsers()) != 1 {
-			err := errors.New("Unable to determine user to delete, query returned multiple users, use ID")
-			ErrorOutput(
-				err,
-				"Error: "+status.Convert(err).Message(),
-				output,
-			)
+			return errMultipleUsersMatch
 		}
 
 		newName, _ := cmd.Flags().GetString("new-name")
@@ -293,13 +235,9 @@ var renameUserCmd = &cobra.Command{
 
 		response, err := client.RenameUser(ctx, renameReq)
 		if err != nil {
-			ErrorOutput(
-				err,
-				"Cannot rename user: "+status.Convert(err).Message(),
-				output,
-			)
+			return fmt.Errorf("renaming user: %w", err)
 		}
 
-		SuccessOutput(response.GetUser(), "User renamed", output)
-	},
+		return printOutput(cmd, response.GetUser(), "User renamed")
+	}),
 }

cmd/headscale/cli/utils.go

@@ -4,25 +4,52 @@ import (
 	"context"
 	"crypto/tls"
 	"encoding/json"
+	"errors"
 	"fmt"
 	"os"
+	"time"
 
 	v1 "github.com/juanfont/headscale/gen/go/headscale/v1"
 	"github.com/juanfont/headscale/hscontrol"
 	"github.com/juanfont/headscale/hscontrol/types"
 	"github.com/juanfont/headscale/hscontrol/util"
+	"github.com/juanfont/headscale/hscontrol/util/zlog/zf"
+	"github.com/prometheus/common/model"
 	"github.com/rs/zerolog/log"
+	"github.com/spf13/cobra"
 	"google.golang.org/grpc"
 	"google.golang.org/grpc/credentials"
 	"google.golang.org/grpc/credentials/insecure"
+	"google.golang.org/protobuf/types/known/timestamppb"
 	"gopkg.in/yaml.v3"
 )
 
 const (
 	HeadscaleDateTimeFormat = "2006-01-02 15:04:05"
 	SocketWritePermissions  = 0o666
+
+	outputFormatJSON     = "json"
+	outputFormatJSONLine = "json-line"
+	outputFormatYAML     = "yaml"
 )
 
+var (
+	errAPIKeyNotSet     = errors.New("HEADSCALE_CLI_API_KEY environment variable needs to be set")
+	errMissingParameter = errors.New("missing parameters")
+)
+
+// mustMarkRequired marks the named flags as required on cmd, panicking
+// if any name does not match a registered flag.  This is only called
+// from init() where a failure indicates a programming error.
+func mustMarkRequired(cmd *cobra.Command, names ...string) {
+	for _, n := range names {
+		err := cmd.MarkFlagRequired(n)
+		if err != nil {
+			panic(fmt.Sprintf("marking flag %q required on %q: %v", n, cmd.Name(), err))
+		}
+	}
+}
+
 func newHeadscaleServerWithConfig() (*hscontrol.Headscale, error) {
 	cfg, err := types.LoadServerConfig()
 	if err != nil {
@@ -40,14 +67,28 @@ func newHeadscaleServerWithConfig() (*hscontrol.Headscale, error) {
 	return app, nil
 }
 
-func newHeadscaleCLIWithConfig() (context.Context, v1.HeadscaleServiceClient, *grpc.ClientConn, context.CancelFunc) {
+// grpcRunE wraps a cobra RunE func, injecting a ready gRPC client and
+// context. Connection lifecycle is managed by the wrapper — callers
+// never see the underlying conn or cancel func.
+func grpcRunE(
+	fn func(ctx context.Context, client v1.HeadscaleServiceClient, cmd *cobra.Command, args []string) error,
+) func(*cobra.Command, []string) error {
+	return func(cmd *cobra.Command, args []string) error {
+		ctx, client, conn, cancel, err := newHeadscaleCLIWithConfig()
+		if err != nil {
+			return fmt.Errorf("connecting to headscale: %w", err)
+		}
+		defer cancel()
+		defer conn.Close()
+
+		return fn(ctx, client, cmd, args)
+	}
+}
+
+func newHeadscaleCLIWithConfig() (context.Context, v1.HeadscaleServiceClient, *grpc.ClientConn, context.CancelFunc, error) {
 	cfg, err := types.LoadCLIConfig()
 	if err != nil {
-		log.Fatal().
-			Err(err).
-			Caller().
-			Msgf("Failed to load configuration")
-		os.Exit(-1) // we get here if logging is suppressed (i.e., json output)
+		return nil, nil, nil, nil, fmt.Errorf("loading configuration: %w", err)
 	}
 
 	log.Debug().
@@ -57,7 +98,7 @@ func newHeadscaleCLIWithConfig() (context.Context, v1.HeadscaleServiceClient, *g
 	ctx, cancel := context.WithTimeout(context.Background(), cfg.CLI.Timeout)
 
 	grpcOptions := []grpc.DialOption{
-		grpc.WithBlock(),
+		grpc.WithBlock(), //nolint:staticcheck // SA1019: deprecated but supported in 1.x
 	}
 
 	address := cfg.CLI.Address
@@ -71,17 +112,23 @@ func newHeadscaleCLIWithConfig() (context.Context, v1.HeadscaleServiceClient, *g
 		address = cfg.UnixSocket
 
 		// Try to give the user better feedback if we cannot write to the headscale
-		// socket.
-		socket, err := os.OpenFile(cfg.UnixSocket, os.O_WRONLY, SocketWritePermissions) // nolint
+		// socket.  Note: os.OpenFile on a Unix domain socket returns ENXIO on
+		// Linux which is expected — only permission errors are actionable here.
+		// The actual gRPC connection uses net.Dial which handles sockets properly.
+		socket, err := os.OpenFile(cfg.UnixSocket, os.O_WRONLY, SocketWritePermissions) //nolint
 		if err != nil {
 			if os.IsPermission(err) {
-				log.Fatal().
-					Err(err).
-					Str("socket", cfg.UnixSocket).
-					Msgf("Unable to read/write to headscale socket, do you have the correct permissions?")
+				cancel()
+
+				return nil, nil, nil, nil, fmt.Errorf(
+					"unable to read/write to headscale socket %q, do you have the correct permissions? %w",
+					cfg.UnixSocket,
+					err,
+				)
 			}
+		} else {
+			socket.Close()
 		}
-		socket.Close()
 
 		grpcOptions = append(
 			grpcOptions,
@@ -92,8 +139,11 @@ func newHeadscaleCLIWithConfig() (context.Context, v1.HeadscaleServiceClient, *g
 		// If we are not connecting to a local server, require an API key for authentication
 		apiKey := cfg.CLI.APIKey
 		if apiKey == "" {
-			log.Fatal().Caller().Msgf("HEADSCALE_CLI_API_KEY environment variable needs to be set.")
+			cancel()
+
+			return nil, nil, nil, nil, errAPIKeyNotSet
 		}
+
 		grpcOptions = append(grpcOptions,
 			grpc.WithPerRPCCredentials(tokenAuth{
 				token: apiKey,
@@ -118,71 +168,136 @@ func newHeadscaleCLIWithConfig() (context.Context, v1.HeadscaleServiceClient, *g
 		}
 	}
 
-	log.Trace().Caller().Str("address", address).Msg("Connecting via gRPC")
-	conn, err := grpc.DialContext(ctx, address, grpcOptions...)
+	log.Trace().Caller().Str(zf.Address, address).Msg("connecting via gRPC")
+
+	conn, err := grpc.DialContext(ctx, address, grpcOptions...) //nolint:staticcheck // SA1019: deprecated but supported in 1.x
 	if err != nil {
-		log.Fatal().Caller().Err(err).Msgf("Could not connect: %v", err)
-		os.Exit(-1) // we get here if logging is suppressed (i.e., json output)
+		cancel()
+
+		return nil, nil, nil, nil, fmt.Errorf("connecting to %s: %w", address, err)
 	}
 
 	client := v1.NewHeadscaleServiceClient(conn)
 
-	return ctx, client, conn, cancel
+	return ctx, client, conn, cancel, nil
 }
 
-func output(result any, override string, outputFormat string) string {
-	var jsonBytes []byte
-	var err error
+// formatOutput serialises result into the requested format. For the
+// default (empty) format the human-readable override string is returned.
+func formatOutput(result any, override string, outputFormat string) (string, error) {
 	switch outputFormat {
-	case "json":
-		jsonBytes, err = json.MarshalIndent(result, "", "\t")
+	case outputFormatJSON:
+		b, err := json.MarshalIndent(result, "", "\t")
 		if err != nil {
-			log.Fatal().Err(err).Msg("failed to unmarshal output")
+			return "", fmt.Errorf("marshalling JSON output: %w", err)
 		}
-	case "json-line":
-		jsonBytes, err = json.Marshal(result)
+
+		return string(b), nil
+	case outputFormatJSONLine:
+		b, err := json.Marshal(result)
 		if err != nil {
-			log.Fatal().Err(err).Msg("failed to unmarshal output")
+			return "", fmt.Errorf("marshalling JSON-line output: %w", err)
 		}
-	case "yaml":
-		jsonBytes, err = yaml.Marshal(result)
+
+		return string(b), nil
+	case outputFormatYAML:
+		b, err := yaml.Marshal(result)
 		if err != nil {
-			log.Fatal().Err(err).Msg("failed to unmarshal output")
+			return "", fmt.Errorf("marshalling YAML output: %w", err)
 		}
+
+		return string(b), nil
 	default:
-		// nolint
-		return override
+		return override, nil
+	}
+}
+
+// printOutput formats result and writes it to stdout. It reads the --output
+// flag from cmd to decide the serialisation format.
+func printOutput(cmd *cobra.Command, result any, override string) error {
+	format, _ := cmd.Flags().GetString("output")
+
+	out, err := formatOutput(result, override, format)
+	if err != nil {
+		return err
 	}
 
-	return string(jsonBytes)
+	fmt.Println(out)
+
+	return nil
 }
 
-// SuccessOutput prints the result to stdout and exits with status code 0.
-func SuccessOutput(result any, override string, outputFormat string) {
-	fmt.Println(output(result, override, outputFormat))
-	os.Exit(0)
+// expirationFromFlag parses the --expiration flag as a Prometheus-style
+// duration (e.g. "90d", "1h") and returns an absolute timestamp.
+func expirationFromFlag(cmd *cobra.Command) (*timestamppb.Timestamp, error) {
+	durationStr, _ := cmd.Flags().GetString("expiration")
+
+	duration, err := model.ParseDuration(durationStr)
+	if err != nil {
+		return nil, fmt.Errorf("parsing duration: %w", err)
+	}
+
+	return timestamppb.New(time.Now().UTC().Add(time.Duration(duration))), nil
 }
 
-// ErrorOutput prints an error message to stderr and exits with status code 1.
-func ErrorOutput(errResult error, override string, outputFormat string) {
+// confirmAction returns true when the user confirms a prompt, or when
+// --force is set.  Callers decide what to do when it returns false.
+func confirmAction(cmd *cobra.Command, prompt string) bool {
+	force, _ := cmd.Flags().GetBool("force")
+	if force {
+		return true
+	}
+
+	return util.YesNo(prompt)
+}
+
+// printListOutput checks the --output flag: when a machine-readable format is
+// requested it serialises data as JSON/YAML; otherwise it calls renderTable
+// to produce the human-readable pterm table.
+func printListOutput(
+	cmd *cobra.Command,
+	data any,
+	renderTable func() error,
+) error {
+	format, _ := cmd.Flags().GetString("output")
+	if format != "" {
+		return printOutput(cmd, data, "")
+	}
+
+	return renderTable()
+}
+
+// printError writes err to stderr, formatting it as JSON/YAML when the
+// --output flag requests machine-readable output.  Used exclusively by
+// Execute() so that every error surfaces in the format the caller asked for.
+func printError(err error, outputFormat string) {
 	type errOutput struct {
 		Error string `json:"error"`
 	}
 
-	var errorMessage string
-	if errResult != nil {
-		errorMessage = errResult.Error()
-	} else {
-		errorMessage = override
+	e := errOutput{Error: err.Error()}
+
+	var formatted []byte
+
+	switch outputFormat {
+	case outputFormatJSON:
+		formatted, _ = json.MarshalIndent(e, "", "\t") //nolint:errchkjson // errOutput contains only a string field
+	case outputFormatJSONLine:
+		formatted, _ = json.Marshal(e) //nolint:errchkjson // errOutput contains only a string field
+	case outputFormatYAML:
+		formatted, _ = yaml.Marshal(e)
+	default:
+		fmt.Fprintf(os.Stderr, "Error: %s\n", err)
+
+		return
 	}
 
-	fmt.Fprintf(os.Stderr, "%s\n", output(errOutput{errorMessage}, override, outputFormat))
-	os.Exit(1)
+	fmt.Fprintf(os.Stderr, "%s\n", formatted)
 }
 
-func HasMachineOutputFlag() bool {
+func hasMachineOutputFlag() bool {
 	for _, arg := range os.Args {
-		if arg == "json" || arg == "json-line" || arg == "yaml" {
+		if arg == outputFormatJSON || arg == outputFormatJSONLine || arg == outputFormatYAML {
 			return true
 		}
 	}

cmd/headscale/cli/version.go

@@ -14,11 +14,9 @@ var versionCmd = &cobra.Command{
 	Use:   "version",
 	Short: "Print the version.",
 	Long:  "The version of headscale.",
-	Run: func(cmd *cobra.Command, args []string) {
-		output, _ := cmd.Flags().GetString("output")
-
+	RunE: func(cmd *cobra.Command, args []string) error {
 		info := types.GetVersionInfo()
 
-		SuccessOutput(info, info.String(), output)
+		return printOutput(cmd, info, info.String())
 	},
 }

cmd/headscale/headscale.go

@@ -12,6 +12,7 @@ import (
 
 func main() {
 	var colors bool
+
 	switch l := termcolor.SupportLevel(os.Stderr); l {
 	case termcolor.Level16M:
 		colors = true

cmd/headscale/headscale_test.go

@@ -14,9 +14,7 @@ import (
 )
 
 func TestConfigFileLoading(t *testing.T) {
-	tmpDir, err := os.MkdirTemp("", "headscale")
-	require.NoError(t, err)
-	defer os.RemoveAll(tmpDir)
+	tmpDir := t.TempDir()
 
 	path, err := os.Getwd()
 	require.NoError(t, err)
@@ -48,9 +46,7 @@ func TestConfigFileLoading(t *testing.T) {
 }
 
 func TestConfigLoading(t *testing.T) {
-	tmpDir, err := os.MkdirTemp("", "headscale")
-	require.NoError(t, err)
-	defer os.RemoveAll(tmpDir)
+	tmpDir := t.TempDir()
 
 	path, err := os.Getwd()
 	require.NoError(t, err)

cmd/hi/cleanup.go

@@ -22,11 +22,11 @@ import (
 func cleanupBeforeTest(ctx context.Context) error {
 	err := cleanupStaleTestContainers(ctx)
 	if err != nil {
-		return fmt.Errorf("failed to clean stale test containers: %w", err)
+		return fmt.Errorf("cleaning stale test containers: %w", err)
 	}
 
-	if err := pruneDockerNetworks(ctx); err != nil {
-		return fmt.Errorf("failed to prune networks: %w", err)
+	if err := pruneDockerNetworks(ctx); err != nil { //nolint:noinlineerr
+		return fmt.Errorf("pruning networks: %w", err)
 	}
 
 	return nil
@@ -39,14 +39,14 @@ func cleanupAfterTest(ctx context.Context, cli *client.Client, containerID, runI
 		Force: true,
 	})
 	if err != nil {
-		return fmt.Errorf("failed to remove test container: %w", err)
+		return fmt.Errorf("removing test container: %w", err)
 	}
 
 	// Clean up integration test containers for this run only
 	if runID != "" {
 		err := killTestContainersByRunID(ctx, runID)
 		if err != nil {
-			return fmt.Errorf("failed to clean up containers for run %s: %w", runID, err)
+			return fmt.Errorf("cleaning up containers for run %s: %w", runID, err)
 		}
 	}
 
@@ -55,9 +55,9 @@ func cleanupAfterTest(ctx context.Context, cli *client.Client, containerID, runI
 
 // killTestContainers terminates and removes all test containers.
 func killTestContainers(ctx context.Context) error {
-	cli, err := createDockerClient()
+	cli, err := createDockerClient(ctx)
 	if err != nil {
-		return fmt.Errorf("failed to create Docker client: %w", err)
+		return fmt.Errorf("creating Docker client: %w", err)
 	}
 	defer cli.Close()
 
@@ -65,12 +65,14 @@ func killTestContainers(ctx context.Context) error {
 		All: true,
 	})
 	if err != nil {
-		return fmt.Errorf("failed to list containers: %w", err)
+		return fmt.Errorf("listing containers: %w", err)
 	}
 
 	removed := 0
+
 	for _, cont := range containers {
 		shouldRemove := false
+
 		for _, name := range cont.Names {
 			if strings.Contains(name, "headscale-test-suite") ||
 				strings.Contains(name, "hs-") ||
@@ -107,9 +109,9 @@ func killTestContainers(ctx context.Context) error {
 // This function filters containers by the hi.run-id label to only affect containers
 // belonging to the specified test run, leaving other concurrent test runs untouched.
 func killTestContainersByRunID(ctx context.Context, runID string) error {
-	cli, err := createDockerClient()
+	cli, err := createDockerClient(ctx)
 	if err != nil {
-		return fmt.Errorf("failed to create Docker client: %w", err)
+		return fmt.Errorf("creating Docker client: %w", err)
 	}
 	defer cli.Close()
 
@@ -121,7 +123,7 @@ func killTestContainersByRunID(ctx context.Context, runID string) error {
 		),
 	})
 	if err != nil {
-		return fmt.Errorf("failed to list containers for run %s: %w", runID, err)
+		return fmt.Errorf("listing containers for run %s: %w", runID, err)
 	}
 
 	removed := 0
@@ -149,9 +151,9 @@ func killTestContainersByRunID(ctx context.Context, runID string) error {
 // This is useful for cleaning up leftover containers from previous crashed or interrupted test runs
 // without interfering with currently running concurrent tests.
 func cleanupStaleTestContainers(ctx context.Context) error {
-	cli, err := createDockerClient()
+	cli, err := createDockerClient(ctx)
 	if err != nil {
-		return fmt.Errorf("failed to create Docker client: %w", err)
+		return fmt.Errorf("creating Docker client: %w", err)
 	}
 	defer cli.Close()
 
@@ -164,7 +166,7 @@ func cleanupStaleTestContainers(ctx context.Context) error {
 		),
 	})
 	if err != nil {
-		return fmt.Errorf("failed to list stopped containers: %w", err)
+		return fmt.Errorf("listing stopped containers: %w", err)
 	}
 
 	removed := 0
@@ -223,15 +225,15 @@ func removeContainerWithRetry(ctx context.Context, cli *client.Client, container
 
 // pruneDockerNetworks removes unused Docker networks.
 func pruneDockerNetworks(ctx context.Context) error {
-	cli, err := createDockerClient()
+	cli, err := createDockerClient(ctx)
 	if err != nil {
-		return fmt.Errorf("failed to create Docker client: %w", err)
+		return fmt.Errorf("creating Docker client: %w", err)
 	}
 	defer cli.Close()
 
 	report, err := cli.NetworksPrune(ctx, filters.Args{})
 	if err != nil {
-		return fmt.Errorf("failed to prune networks: %w", err)
+		return fmt.Errorf("pruning networks: %w", err)
 	}
 
 	if len(report.NetworksDeleted) > 0 {
@@ -245,9 +247,9 @@ func pruneDockerNetworks(ctx context.Context) error {
 
 // cleanOldImages removes test-related and old dangling Docker images.
 func cleanOldImages(ctx context.Context) error {
-	cli, err := createDockerClient()
+	cli, err := createDockerClient(ctx)
 	if err != nil {
-		return fmt.Errorf("failed to create Docker client: %w", err)
+		return fmt.Errorf("creating Docker client: %w", err)
 	}
 	defer cli.Close()
 
@@ -255,12 +257,14 @@ func cleanOldImages(ctx context.Context) error {
 		All: true,
 	})
 	if err != nil {
-		return fmt.Errorf("failed to list images: %w", err)
+		return fmt.Errorf("listing images: %w", err)
 	}
 
 	removed := 0
+
 	for _, img := range images {
 		shouldRemove := false
+
 		for _, tag := range img.RepoTags {
 			if strings.Contains(tag, "hs-") ||
 				strings.Contains(tag, "headscale-integration") ||
@@ -295,18 +299,19 @@ func cleanOldImages(ctx context.Context) error {
 
 // cleanCacheVolume removes the Docker volume used for Go module cache.
 func cleanCacheVolume(ctx context.Context) error {
-	cli, err := createDockerClient()
+	cli, err := createDockerClient(ctx)
 	if err != nil {
-		return fmt.Errorf("failed to create Docker client: %w", err)
+		return fmt.Errorf("creating Docker client: %w", err)
 	}
 	defer cli.Close()
 
 	volumeName := "hs-integration-go-cache"
+
 	err = cli.VolumeRemove(ctx, volumeName, true)
 	if err != nil {
-		if errdefs.IsNotFound(err) {
+		if errdefs.IsNotFound(err) { //nolint:staticcheck // SA1019: deprecated but functional
 			fmt.Printf("Go module cache volume not found: %s\n", volumeName)
-		} else if errdefs.IsConflict(err) {
+		} else if errdefs.IsConflict(err) { //nolint:staticcheck // SA1019: deprecated but functional
 			fmt.Printf("Go module cache volume is in use and cannot be removed: %s\n", volumeName)
 		} else {
 			fmt.Printf("Failed to remove Go module cache volume %s: %v\n", volumeName, err)
@@ -330,7 +335,7 @@ func cleanCacheVolume(ctx context.Context) error {
 func cleanupSuccessfulTestArtifacts(logsDir string, verbose bool) error {
 	entries, err := os.ReadDir(logsDir)
 	if err != nil {
-		return fmt.Errorf("failed to read logs directory: %w", err)
+		return fmt.Errorf("reading logs directory: %w", err)
 	}
 
 	var (

cmd/hi/docker.go

@@ -22,17 +22,22 @@ import (
 	"github.com/juanfont/headscale/integration/dockertestutil"
 )
 
+const defaultDirPerm = 0o755
+
 var (
 	ErrTestFailed              = errors.New("test failed")
 	ErrUnexpectedContainerWait = errors.New("unexpected end of container wait")
 	ErrNoDockerContext         = errors.New("no docker context found")
+	ErrMemoryLimitViolations   = errors.New("container(s) exceeded memory limits")
 )
 
 // runTestContainer executes integration tests in a Docker container.
+//
+//nolint:gocyclo // complex test orchestration function
 func runTestContainer(ctx context.Context, config *RunConfig) error {
-	cli, err := createDockerClient()
+	cli, err := createDockerClient(ctx)
 	if err != nil {
-		return fmt.Errorf("failed to create Docker client: %w", err)
+		return fmt.Errorf("creating Docker client: %w", err)
 	}
 	defer cli.Close()
 
@@ -48,19 +53,21 @@ func runTestContainer(ctx context.Context, config *RunConfig) error {
 
 	absLogsDir, err := filepath.Abs(logsDir)
 	if err != nil {
-		return fmt.Errorf("failed to get absolute path for logs directory: %w", err)
+		return fmt.Errorf("getting absolute path for logs directory: %w", err)
 	}
 
 	const dirPerm = 0o755
-	if err := os.MkdirAll(absLogsDir, dirPerm); err != nil {
-		return fmt.Errorf("failed to create logs directory: %w", err)
+	if err := os.MkdirAll(absLogsDir, dirPerm); err != nil { //nolint:noinlineerr
+		return fmt.Errorf("creating logs directory: %w", err)
 	}
 
 	if config.CleanBefore {
 		if config.Verbose {
 			log.Printf("Running pre-test cleanup...")
 		}
-		if err := cleanupBeforeTest(ctx); err != nil && config.Verbose {
+
+		err := cleanupBeforeTest(ctx)
+		if err != nil && config.Verbose {
 			log.Printf("Warning: pre-test cleanup failed: %v", err)
 		}
 	}
@@ -71,21 +78,21 @@ func runTestContainer(ctx context.Context, config *RunConfig) error {
 	}
 
 	imageName := "golang:" + config.GoVersion
-	if err := ensureImageAvailable(ctx, cli, imageName, config.Verbose); err != nil {
-		return fmt.Errorf("failed to ensure image availability: %w", err)
+	if err := ensureImageAvailable(ctx, cli, imageName, config.Verbose); err != nil { //nolint:noinlineerr
+		return fmt.Errorf("ensuring image availability: %w", err)
 	}
 
 	resp, err := createGoTestContainer(ctx, cli, config, containerName, absLogsDir, goTestCmd)
 	if err != nil {
-		return fmt.Errorf("failed to create container: %w", err)
+		return fmt.Errorf("creating container: %w", err)
 	}
 
 	if config.Verbose {
 		log.Printf("Created container: %s", resp.ID)
 	}
 
-	if err := cli.ContainerStart(ctx, resp.ID, container.StartOptions{}); err != nil {
-		return fmt.Errorf("failed to start container: %w", err)
+	if err := cli.ContainerStart(ctx, resp.ID, container.StartOptions{}); err != nil { //nolint:noinlineerr
+		return fmt.Errorf("starting container: %w", err)
 	}
 
 	log.Printf("Starting test: %s", config.TestPattern)
@@ -95,13 +102,16 @@ func runTestContainer(ctx context.Context, config *RunConfig) error {
 
 	// Start stats collection for container resource monitoring (if enabled)
 	var statsCollector *StatsCollector
+
 	if config.Stats {
 		var err error
-		statsCollector, err = NewStatsCollector()
+
+		statsCollector, err = NewStatsCollector(ctx)
 		if err != nil {
 			if config.Verbose {
 				log.Printf("Warning: failed to create stats collector: %v", err)
 			}
+
 			statsCollector = nil
 		}
 
@@ -110,7 +120,8 @@ func runTestContainer(ctx context.Context, config *RunConfig) error {
 
 			// Start stats collection immediately - no need for complex retry logic
 			// The new implementation monitors Docker events and will catch containers as they start
-			if err := statsCollector.StartCollection(ctx, runID, config.Verbose); err != nil {
+			err := statsCollector.StartCollection(ctx, runID, config.Verbose)
+			if err != nil {
 				if config.Verbose {
 					log.Printf("Warning: failed to start stats collection: %v", err)
 				}
@@ -122,12 +133,13 @@ func runTestContainer(ctx context.Context, config *RunConfig) error {
 	exitCode, err := streamAndWait(ctx, cli, resp.ID)
 
 	// Ensure all containers have finished and logs are flushed before extracting artifacts
-	if waitErr := waitForContainerFinalization(ctx, cli, resp.ID, config.Verbose); waitErr != nil && config.Verbose {
+	waitErr := waitForContainerFinalization(ctx, cli, resp.ID, config.Verbose)
+	if waitErr != nil && config.Verbose {
 		log.Printf("Warning: failed to wait for container finalization: %v", waitErr)
 	}
 
 	// Extract artifacts from test containers before cleanup
-	if err := extractArtifactsFromContainers(ctx, resp.ID, logsDir, config.Verbose); err != nil && config.Verbose {
+	if err := extractArtifactsFromContainers(ctx, resp.ID, logsDir, config.Verbose); err != nil && config.Verbose { //nolint:noinlineerr
 		log.Printf("Warning: failed to extract artifacts from containers: %v", err)
 	}
 
@@ -140,12 +152,13 @@ func runTestContainer(ctx context.Context, config *RunConfig) error {
 		if len(violations) > 0 {
 			log.Printf("MEMORY LIMIT VIOLATIONS DETECTED:")
 			log.Printf("=================================")
+
 			for _, violation := range violations {
 				log.Printf("Container %s exceeded memory limit: %.1f MB > %.1f MB",
 					violation.ContainerName, violation.MaxMemoryMB, violation.LimitMB)
 			}
 
-			return fmt.Errorf("test failed: %d container(s) exceeded memory limits", len(violations))
+			return fmt.Errorf("test failed: %d %w", len(violations), ErrMemoryLimitViolations)
 		}
 	}
 
@@ -176,7 +189,7 @@ func runTestContainer(ctx context.Context, config *RunConfig) error {
 	}
 
 	if err != nil {
-		return fmt.Errorf("test execution failed: %w", err)
+		return fmt.Errorf("executing test: %w", err)
 	}
 
 	if exitCode != 0 {
@@ -210,7 +223,7 @@ func buildGoTestCommand(config *RunConfig) []string {
 func createGoTestContainer(ctx context.Context, cli *client.Client, config *RunConfig, containerName, logsDir string, goTestCmd []string) (container.CreateResponse, error) {
 	pwd, err := os.Getwd()
 	if err != nil {
-		return container.CreateResponse{}, fmt.Errorf("failed to get working directory: %w", err)
+		return container.CreateResponse{}, fmt.Errorf("getting working directory: %w", err)
 	}
 
 	projectRoot := findProjectRoot(pwd)
@@ -312,7 +325,7 @@ func streamAndWait(ctx context.Context, cli *client.Client, containerID string)
 		Follow:     true,
 	})
 	if err != nil {
-		return -1, fmt.Errorf("failed to get container logs: %w", err)
+		return -1, fmt.Errorf("getting container logs: %w", err)
 	}
 	defer out.Close()
 
@@ -324,7 +337,7 @@ func streamAndWait(ctx context.Context, cli *client.Client, containerID string)
 	select {
 	case err := <-errCh:
 		if err != nil {
-			return -1, fmt.Errorf("error waiting for container: %w", err)
+			return -1, fmt.Errorf("waiting for container: %w", err)
 		}
 	case status := <-statusCh:
 		return int(status.StatusCode), nil
@@ -338,7 +351,7 @@ func waitForContainerFinalization(ctx context.Context, cli *client.Client, testC
 	// First, get all related test containers
 	containers, err := cli.ContainerList(ctx, container.ListOptions{All: true})
 	if err != nil {
-		return fmt.Errorf("failed to list containers: %w", err)
+		return fmt.Errorf("listing containers: %w", err)
 	}
 
 	testContainers := getCurrentTestContainers(containers, testContainerID, verbose)
@@ -347,6 +360,7 @@ func waitForContainerFinalization(ctx context.Context, cli *client.Client, testC
 	maxWaitTime := 10 * time.Second
 	checkInterval := 500 * time.Millisecond
 	timeout := time.After(maxWaitTime)
+
 	ticker := time.NewTicker(checkInterval)
 	defer ticker.Stop()
 
@@ -356,6 +370,7 @@ func waitForContainerFinalization(ctx context.Context, cli *client.Client, testC
 			if verbose {
 				log.Printf("Timeout waiting for container finalization, proceeding with artifact extraction")
 			}
+
 			return nil
 		case <-ticker.C:
 			allFinalized := true
@@ -366,12 +381,14 @@ func waitForContainerFinalization(ctx context.Context, cli *client.Client, testC
 					if verbose {
 						log.Printf("Warning: failed to inspect container %s: %v", testCont.name, err)
 					}
+
 					continue
 				}
 
 				// Check if container is in a final state
 				if !isContainerFinalized(inspect.State) {
 					allFinalized = false
+
 					if verbose {
 						log.Printf("Container %s still finalizing (state: %s)", testCont.name, inspect.State.Status)
 					}
@@ -384,6 +401,7 @@ func waitForContainerFinalization(ctx context.Context, cli *client.Client, testC
 				if verbose {
 					log.Printf("All test containers finalized, ready for artifact extraction")
 				}
+
 				return nil
 			}
 		}
@@ -400,13 +418,15 @@ func isContainerFinalized(state *container.State) bool {
 func findProjectRoot(startPath string) string {
 	current := startPath
 	for {
-		if _, err := os.Stat(filepath.Join(current, "go.mod")); err == nil {
+		if _, err := os.Stat(filepath.Join(current, "go.mod")); err == nil { //nolint:noinlineerr
 			return current
 		}
+
 		parent := filepath.Dir(current)
 		if parent == current {
 			return startPath
 		}
+
 		current = parent
 	}
 }
@@ -416,6 +436,7 @@ func boolToInt(b bool) int {
 	if b {
 		return 1
 	}
+
 	return 0
 }
 
@@ -428,13 +449,14 @@ type DockerContext struct {
 }
 
 // createDockerClient creates a Docker client with context detection.
-func createDockerClient() (*client.Client, error) {
-	contextInfo, err := getCurrentDockerContext()
+func createDockerClient(ctx context.Context) (*client.Client, error) {
+	contextInfo, err := getCurrentDockerContext(ctx)
 	if err != nil {
 		return client.NewClientWithOpts(client.FromEnv, client.WithAPIVersionNegotiation())
 	}
 
 	var clientOpts []client.Opt
+
 	clientOpts = append(clientOpts, client.WithAPIVersionNegotiation())
 
 	if contextInfo != nil {
@@ -444,6 +466,7 @@ func createDockerClient() (*client.Client, error) {
 					if runConfig.Verbose {
 						log.Printf("Using Docker host from context '%s': %s", contextInfo.Name, host)
 					}
+
 					clientOpts = append(clientOpts, client.WithHost(host))
 				}
 			}
@@ -458,16 +481,17 @@ func createDockerClient() (*client.Client, error) {
 }
 
 // getCurrentDockerContext retrieves the current Docker context information.
-func getCurrentDockerContext() (*DockerContext, error) {
-	cmd := exec.Command("docker", "context", "inspect")
+func getCurrentDockerContext(ctx context.Context) (*DockerContext, error) {
+	cmd := exec.CommandContext(ctx, "docker", "context", "inspect")
+
 	output, err := cmd.Output()
 	if err != nil {
-		return nil, fmt.Errorf("failed to get docker context: %w", err)
+		return nil, fmt.Errorf("getting docker context: %w", err)
 	}
 
 	var contexts []DockerContext
-	if err := json.Unmarshal(output, &contexts); err != nil {
-		return nil, fmt.Errorf("failed to parse docker context: %w", err)
+	if err := json.Unmarshal(output, &contexts); err != nil { //nolint:noinlineerr
+		return nil, fmt.Errorf("parsing docker context: %w", err)
 	}
 
 	if len(contexts) > 0 {
@@ -486,12 +510,13 @@ func getDockerSocketPath() string {
 
 // checkImageAvailableLocally checks if the specified Docker image is available locally.
 func checkImageAvailableLocally(ctx context.Context, cli *client.Client, imageName string) (bool, error) {
-	_, _, err := cli.ImageInspectWithRaw(ctx, imageName)
+	_, _, err := cli.ImageInspectWithRaw(ctx, imageName) //nolint:staticcheck // SA1019: deprecated but functional
 	if err != nil {
-		if client.IsErrNotFound(err) {
+		if client.IsErrNotFound(err) { //nolint:staticcheck // SA1019: deprecated but functional
 			return false, nil
 		}
-		return false, fmt.Errorf("failed to inspect image %s: %w", imageName, err)
+
+		return false, fmt.Errorf("inspecting image %s: %w", imageName, err)
 	}
 
 	return true, nil
@@ -502,13 +527,14 @@ func ensureImageAvailable(ctx context.Context, cli *client.Client, imageName str
 	// First check if image is available locally
 	available, err := checkImageAvailableLocally(ctx, cli, imageName)
 	if err != nil {
-		return fmt.Errorf("failed to check local image availability: %w", err)
+		return fmt.Errorf("checking local image availability: %w", err)
 	}
 
 	if available {
 		if verbose {
 			log.Printf("Image %s is available locally", imageName)
 		}
+
 		return nil
 	}
 
@@ -519,20 +545,21 @@ func ensureImageAvailable(ctx context.Context, cli *client.Client, imageName str
 
 	reader, err := cli.ImagePull(ctx, imageName, image.PullOptions{})
 	if err != nil {
-		return fmt.Errorf("failed to pull image %s: %w", imageName, err)
+		return fmt.Errorf("pulling image %s: %w", imageName, err)
 	}
 	defer reader.Close()
 
 	if verbose {
 		_, err = io.Copy(os.Stdout, reader)
 		if err != nil {
-			return fmt.Errorf("failed to read pull output: %w", err)
+			return fmt.Errorf("reading pull output: %w", err)
 		}
 	} else {
 		_, err = io.Copy(io.Discard, reader)
 		if err != nil {
-			return fmt.Errorf("failed to read pull output: %w", err)
+			return fmt.Errorf("reading pull output: %w", err)
 		}
+
 		log.Printf("Image %s pulled successfully", imageName)
 	}
 
@@ -547,9 +574,11 @@ func listControlFiles(logsDir string) {
 		return
 	}
 
-	var logFiles []string
-	var dataFiles []string
-	var dataDirs []string
+	var (
+		logFiles  []string
+		dataFiles []string
+		dataDirs  []string
+	)
 
 	for _, entry := range entries {
 		name := entry.Name()
@@ -578,6 +607,7 @@ func listControlFiles(logsDir string) {
 
 	if len(logFiles) > 0 {
 		log.Printf("Headscale logs:")
+
 		for _, file := range logFiles {
 			log.Printf("  %s", file)
 		}
@@ -585,9 +615,11 @@ func listControlFiles(logsDir string) {
 
 	if len(dataFiles) > 0 || len(dataDirs) > 0 {
 		log.Printf("Headscale data:")
+
 		for _, file := range dataFiles {
 			log.Printf("  %s", file)
 		}
+
 		for _, dir := range dataDirs {
 			log.Printf("  %s/", dir)
 		}
@@ -596,25 +628,27 @@ func listControlFiles(logsDir string) {
 
 // extractArtifactsFromContainers collects container logs and files from the specific test run.
 func extractArtifactsFromContainers(ctx context.Context, testContainerID, logsDir string, verbose bool) error {
-	cli, err := createDockerClient()
+	cli, err := createDockerClient(ctx)
 	if err != nil {
-		return fmt.Errorf("failed to create Docker client: %w", err)
+		return fmt.Errorf("creating Docker client: %w", err)
 	}
 	defer cli.Close()
 
 	// List all containers
 	containers, err := cli.ContainerList(ctx, container.ListOptions{All: true})
 	if err != nil {
-		return fmt.Errorf("failed to list containers: %w", err)
+		return fmt.Errorf("listing containers: %w", err)
 	}
 
 	// Get containers from the specific test run
 	currentTestContainers := getCurrentTestContainers(containers, testContainerID, verbose)
 
 	extractedCount := 0
+
 	for _, cont := range currentTestContainers {
 		// Extract container logs and tar files
-		if err := extractContainerArtifacts(ctx, cli, cont.ID, cont.name, logsDir, verbose); err != nil {
+		err := extractContainerArtifacts(ctx, cli, cont.ID, cont.name, logsDir, verbose)
+		if err != nil {
 			if verbose {
 				log.Printf("Warning: failed to extract artifacts from container %s (%s): %v", cont.name, cont.ID[:12], err)
 			}
@@ -622,6 +656,7 @@ func extractArtifactsFromContainers(ctx context.Context, testContainerID, logsDi
 			if verbose {
 				log.Printf("Extracted artifacts from container %s (%s)", cont.name, cont.ID[:12])
 			}
+
 			extractedCount++
 		}
 	}
@@ -645,11 +680,13 @@ func getCurrentTestContainers(containers []container.Summary, testContainerID st
 
 	// Find the test container to get its run ID label
 	var runID string
+
 	for _, cont := range containers {
 		if cont.ID == testContainerID {
 			if cont.Labels != nil {
 				runID = cont.Labels["hi.run-id"]
 			}
+
 			break
 		}
 	}
@@ -690,18 +727,21 @@ func getCurrentTestContainers(containers []container.Summary, testContainerID st
 // extractContainerArtifacts saves logs and tar files from a container.
 func extractContainerArtifacts(ctx context.Context, cli *client.Client, containerID, containerName, logsDir string, verbose bool) error {
 	// Ensure the logs directory exists
-	if err := os.MkdirAll(logsDir, 0o755); err != nil {
-		return fmt.Errorf("failed to create logs directory: %w", err)
+	err := os.MkdirAll(logsDir, defaultDirPerm)
+	if err != nil {
+		return fmt.Errorf("creating logs directory: %w", err)
 	}
 
 	// Extract container logs
-	if err := extractContainerLogs(ctx, cli, containerID, containerName, logsDir, verbose); err != nil {
-		return fmt.Errorf("failed to extract logs: %w", err)
+	err = extractContainerLogs(ctx, cli, containerID, containerName, logsDir, verbose)
+	if err != nil {
+		return fmt.Errorf("extracting logs: %w", err)
 	}
 
 	// Extract tar files for headscale containers only
 	if strings.HasPrefix(containerName, "hs-") {
-		if err := extractContainerFiles(ctx, cli, containerID, containerName, logsDir, verbose); err != nil {
+		err := extractContainerFiles(ctx, cli, containerID, containerName, logsDir, verbose)
+		if err != nil {
 			if verbose {
 				log.Printf("Warning: failed to extract files from %s: %v", containerName, err)
 			}
@@ -723,7 +763,7 @@ func extractContainerLogs(ctx context.Context, cli *client.Client, containerID,
 		Tail:       "all",
 	})
 	if err != nil {
-		return fmt.Errorf("failed to get container logs: %w", err)
+		return fmt.Errorf("getting container logs: %w", err)
 	}
 	defer logReader.Close()
 
@@ -737,17 +777,17 @@ func extractContainerLogs(ctx context.Context, cli *client.Client, containerID,
 	// Demultiplex the Docker logs stream to separate stdout and stderr
 	_, err = stdcopy.StdCopy(&stdoutBuf, &stderrBuf, logReader)
 	if err != nil {
-		return fmt.Errorf("failed to demultiplex container logs: %w", err)
+		return fmt.Errorf("demultiplexing container logs: %w", err)
 	}
 
 	// Write stdout logs
-	if err := os.WriteFile(stdoutPath, stdoutBuf.Bytes(), 0o644); err != nil {
-		return fmt.Errorf("failed to write stdout log: %w", err)
+	if err := os.WriteFile(stdoutPath, stdoutBuf.Bytes(), 0o644); err != nil { //nolint:gosec,noinlineerr // log files should be readable
+		return fmt.Errorf("writing stdout log: %w", err)
 	}
 
 	// Write stderr logs
-	if err := os.WriteFile(stderrPath, stderrBuf.Bytes(), 0o644); err != nil {
-		return fmt.Errorf("failed to write stderr log: %w", err)
+	if err := os.WriteFile(stderrPath, stderrBuf.Bytes(), 0o644); err != nil { //nolint:gosec,noinlineerr // log files should be readable
+		return fmt.Errorf("writing stderr log: %w", err)
 	}
 
 	if verbose {

cmd/hi/doctor.go

@@ -38,13 +38,13 @@ func runDoctorCheck(ctx context.Context) error {
 	}
 
 	// Check 3: Go installation
-	results = append(results, checkGoInstallation())
+	results = append(results, checkGoInstallation(ctx))
 
 	// Check 4: Git repository
-	results = append(results, checkGitRepository())
+	results = append(results, checkGitRepository(ctx))
 
 	// Check 5: Required files
-	results = append(results, checkRequiredFiles())
+	results = append(results, checkRequiredFiles(ctx))
 
 	// Display results
 	displayDoctorResults(results)
@@ -86,7 +86,7 @@ func checkDockerBinary() DoctorResult {
 
 // checkDockerDaemon verifies Docker daemon is running and accessible.
 func checkDockerDaemon(ctx context.Context) DoctorResult {
-	cli, err := createDockerClient()
+	cli, err := createDockerClient(ctx)
 	if err != nil {
 		return DoctorResult{
 			Name:    "Docker Daemon",
@@ -124,8 +124,8 @@ func checkDockerDaemon(ctx context.Context) DoctorResult {
 }
 
 // checkDockerContext verifies Docker context configuration.
-func checkDockerContext(_ context.Context) DoctorResult {
-	contextInfo, err := getCurrentDockerContext()
+func checkDockerContext(ctx context.Context) DoctorResult {
+	contextInfo, err := getCurrentDockerContext(ctx)
 	if err != nil {
 		return DoctorResult{
 			Name:    "Docker Context",
@@ -155,7 +155,7 @@ func checkDockerContext(_ context.Context) DoctorResult {
 
 // checkDockerSocket verifies Docker socket accessibility.
 func checkDockerSocket(ctx context.Context) DoctorResult {
-	cli, err := createDockerClient()
+	cli, err := createDockerClient(ctx)
 	if err != nil {
 		return DoctorResult{
 			Name:    "Docker Socket",
@@ -192,7 +192,7 @@ func checkDockerSocket(ctx context.Context) DoctorResult {
 
 // checkGolangImage verifies the golang Docker image is available locally or can be pulled.
 func checkGolangImage(ctx context.Context) DoctorResult {
-	cli, err := createDockerClient()
+	cli, err := createDockerClient(ctx)
 	if err != nil {
 		return DoctorResult{
 			Name:    "Golang Image",
@@ -251,7 +251,7 @@ func checkGolangImage(ctx context.Context) DoctorResult {
 }
 
 // checkGoInstallation verifies Go is installed and working.
-func checkGoInstallation() DoctorResult {
+func checkGoInstallation(ctx context.Context) DoctorResult {
 	_, err := exec.LookPath("go")
 	if err != nil {
 		return DoctorResult{
@@ -265,7 +265,8 @@ func checkGoInstallation() DoctorResult {
 		}
 	}
 
-	cmd := exec.Command("go", "version")
+	cmd := exec.CommandContext(ctx, "go", "version")
+
 	output, err := cmd.Output()
 	if err != nil {
 		return DoctorResult{
@@ -285,8 +286,9 @@ func checkGoInstallation() DoctorResult {
 }
 
 // checkGitRepository verifies we're in a git repository.
-func checkGitRepository() DoctorResult {
-	cmd := exec.Command("git", "rev-parse", "--git-dir")
+func checkGitRepository(ctx context.Context) DoctorResult {
+	cmd := exec.CommandContext(ctx, "git", "rev-parse", "--git-dir")
+
 	err := cmd.Run()
 	if err != nil {
 		return DoctorResult{
@@ -308,7 +310,7 @@ func checkGitRepository() DoctorResult {
 }
 
 // checkRequiredFiles verifies required files exist.
-func checkRequiredFiles() DoctorResult {
+func checkRequiredFiles(ctx context.Context) DoctorResult {
 	requiredFiles := []string{
 		"go.mod",
 		"integration/",
@@ -316,9 +318,12 @@ func checkRequiredFiles() DoctorResult {
 	}
 
 	var missingFiles []string
+
 	for _, file := range requiredFiles {
-		cmd := exec.Command("test", "-e", file)
-		if err := cmd.Run(); err != nil {
+		cmd := exec.CommandContext(ctx, "test", "-e", file)
+
+		err := cmd.Run()
+		if err != nil {
 			missingFiles = append(missingFiles, file)
 		}
 	}
@@ -350,6 +355,7 @@ func displayDoctorResults(results []DoctorResult) {
 
 	for _, result := range results {
 		var icon string
+
 		switch result.Status {
 		case "PASS":
 			icon = "✅"

cmd/hi/main.go

@@ -79,13 +79,18 @@ func main() {
 }
 
 func cleanAll(ctx context.Context) error {
-	if err := killTestContainers(ctx); err != nil {
+	err := killTestContainers(ctx)
+	if err != nil {
 		return err
 	}
-	if err := pruneDockerNetworks(ctx); err != nil {
+
+	err = pruneDockerNetworks(ctx)
+	if err != nil {
 		return err
 	}
-	if err := cleanOldImages(ctx); err != nil {
+
+	err = cleanOldImages(ctx)
+	if err != nil {
 		return err
 	}
 

cmd/hi/run.go

@@ -48,7 +48,9 @@ func runIntegrationTest(env *command.Env) error {
 	if runConfig.Verbose {
 		log.Printf("Running pre-flight system checks...")
 	}
-	if err := runDoctorCheck(env.Context()); err != nil {
+
+	err := runDoctorCheck(env.Context())
+	if err != nil {
 		return fmt.Errorf("pre-flight checks failed: %w", err)
 	}
 
@@ -66,15 +68,15 @@ func runIntegrationTest(env *command.Env) error {
 func detectGoVersion() string {
 	goModPath := filepath.Join("..", "..", "go.mod")
 
-	if _, err := os.Stat("go.mod"); err == nil {
+	if _, err := os.Stat("go.mod"); err == nil { //nolint:noinlineerr
 		goModPath = "go.mod"
-	} else if _, err := os.Stat("../../go.mod"); err == nil {
+	} else if _, err := os.Stat("../../go.mod"); err == nil { //nolint:noinlineerr
 		goModPath = "../../go.mod"
 	}
 
 	content, err := os.ReadFile(goModPath)
 	if err != nil {
-		return "1.25"
+		return "1.26.1"
 	}
 
 	lines := splitLines(string(content))
@@ -89,13 +91,15 @@ func detectGoVersion() string {
 		}
 	}
 
-	return "1.25"
+	return "1.26.1"
 }
 
 // splitLines splits a string into lines without using strings.Split.
 func splitLines(s string) []string {
-	var lines []string
-	var current string
+	var (
+		lines   []string
+		current string
+	)
 
 	for _, char := range s {
 		if char == '\n' {

cmd/hi/stats.go

@@ -18,6 +18,9 @@ import (
 	"github.com/docker/docker/client"
 )
 
+// ErrStatsCollectionAlreadyStarted is returned when trying to start stats collection that is already running.
+var ErrStatsCollectionAlreadyStarted = errors.New("stats collection already started")
+
 // ContainerStats represents statistics for a single container.
 type ContainerStats struct {
 	ContainerID   string
@@ -44,10 +47,10 @@ type StatsCollector struct {
 }
 
 // NewStatsCollector creates a new stats collector instance.
-func NewStatsCollector() (*StatsCollector, error) {
-	cli, err := createDockerClient()
+func NewStatsCollector(ctx context.Context) (*StatsCollector, error) {
+	cli, err := createDockerClient(ctx)
 	if err != nil {
-		return nil, fmt.Errorf("failed to create Docker client: %w", err)
+		return nil, fmt.Errorf("creating Docker client: %w", err)
 	}
 
 	return &StatsCollector{
@@ -63,17 +66,19 @@ func (sc *StatsCollector) StartCollection(ctx context.Context, runID string, ver
 	defer sc.mutex.Unlock()
 
 	if sc.collectionStarted {
-		return errors.New("stats collection already started")
+		return ErrStatsCollectionAlreadyStarted
 	}
 
 	sc.collectionStarted = true
 
 	// Start monitoring existing containers
 	sc.wg.Add(1)
+
 	go sc.monitorExistingContainers(ctx, runID, verbose)
 
 	// Start Docker events monitoring for new containers
 	sc.wg.Add(1)
+
 	go sc.monitorDockerEvents(ctx, runID, verbose)
 
 	if verbose {
@@ -87,10 +92,12 @@ func (sc *StatsCollector) StartCollection(ctx context.Context, runID string, ver
 func (sc *StatsCollector) StopCollection() {
 	// Check if already stopped without holding lock
 	sc.mutex.RLock()
+
 	if !sc.collectionStarted {
 		sc.mutex.RUnlock()
 		return
 	}
+
 	sc.mutex.RUnlock()
 
 	// Signal stop to all goroutines
@@ -114,6 +121,7 @@ func (sc *StatsCollector) monitorExistingContainers(ctx context.Context, runID s
 		if verbose {
 			log.Printf("Failed to list existing containers: %v", err)
 		}
+
 		return
 	}
 
@@ -147,13 +155,13 @@ func (sc *StatsCollector) monitorDockerEvents(ctx context.Context, runID string,
 		case event := <-events:
 			if event.Type == "container" && event.Action == "start" {
 				// Get container details
-				containerInfo, err := sc.client.ContainerInspect(ctx, event.ID)
+				containerInfo, err := sc.client.ContainerInspect(ctx, event.ID) //nolint:staticcheck // SA1019: use Actor.ID
 				if err != nil {
 					continue
 				}
 
 				// Convert to types.Container format for consistency
-				cont := types.Container{
+				cont := types.Container{ //nolint:staticcheck // SA1019: use container.Summary
 					ID:     containerInfo.ID,
 					Names:  []string{containerInfo.Name},
 					Labels: containerInfo.Config.Labels,
@@ -167,13 +175,14 @@ func (sc *StatsCollector) monitorDockerEvents(ctx context.Context, runID string,
 			if verbose {
 				log.Printf("Error in Docker events stream: %v", err)
 			}
+
 			return
 		}
 	}
 }
 
 // shouldMonitorContainer determines if a container should be monitored.
-func (sc *StatsCollector) shouldMonitorContainer(cont types.Container, runID string) bool {
+func (sc *StatsCollector) shouldMonitorContainer(cont types.Container, runID string) bool { //nolint:staticcheck // SA1019: use container.Summary
 	// Check if it has the correct run ID label
 	if cont.Labels == nil || cont.Labels["hi.run-id"] != runID {
 		return false
@@ -213,6 +222,7 @@ func (sc *StatsCollector) startStatsForContainer(ctx context.Context, containerI
 	}
 
 	sc.wg.Add(1)
+
 	go sc.collectStatsForContainer(ctx, containerID, verbose)
 }
 
@@ -226,12 +236,14 @@ func (sc *StatsCollector) collectStatsForContainer(ctx context.Context, containe
 		if verbose {
 			log.Printf("Failed to get stats stream for container %s: %v", containerID[:12], err)
 		}
+
 		return
 	}
 	defer statsResponse.Body.Close()
 
 	decoder := json.NewDecoder(statsResponse.Body)
-	var prevStats *container.Stats
+
+	var prevStats *container.Stats //nolint:staticcheck // SA1019: use StatsResponse
 
 	for {
 		select {
@@ -240,12 +252,15 @@ func (sc *StatsCollector) collectStatsForContainer(ctx context.Context, containe
 		case <-ctx.Done():
 			return
 		default:
-			var stats container.Stats
-			if err := decoder.Decode(&stats); err != nil {
+			var stats container.Stats //nolint:staticcheck // SA1019: use StatsResponse
+
+			err := decoder.Decode(&stats)
+			if err != nil {
 				// EOF is expected when container stops or stream ends
 				if err.Error() != "EOF" && verbose {
 					log.Printf("Failed to decode stats for container %s: %v", containerID[:12], err)
 				}
+
 				return
 			}
 
@@ -261,8 +276,10 @@ func (sc *StatsCollector) collectStatsForContainer(ctx context.Context, containe
 			// Store the sample (skip first sample since CPU calculation needs previous stats)
 			if prevStats != nil {
 				// Get container stats reference without holding the main mutex
-				var containerStats *ContainerStats
-				var exists bool
+				var (
+					containerStats *ContainerStats
+					exists         bool
+				)
 
 				sc.mutex.RLock()
 				containerStats, exists = sc.containers[containerID]
@@ -286,7 +303,7 @@ func (sc *StatsCollector) collectStatsForContainer(ctx context.Context, containe
 }
 
 // calculateCPUPercent calculates CPU usage percentage from Docker stats.
-func calculateCPUPercent(prevStats, stats *container.Stats) float64 {
+func calculateCPUPercent(prevStats, stats *container.Stats) float64 { //nolint:staticcheck // SA1019: use StatsResponse
 	// CPU calculation based on Docker's implementation
 	cpuDelta := float64(stats.CPUStats.CPUUsage.TotalUsage) - float64(prevStats.CPUStats.CPUUsage.TotalUsage)
 	systemDelta := float64(stats.CPUStats.SystemUsage) - float64(prevStats.CPUStats.SystemUsage)
@@ -331,10 +348,12 @@ type StatsSummary struct {
 func (sc *StatsCollector) GetSummary() []ContainerStatsSummary {
 	// Take snapshot of container references without holding main lock long
 	sc.mutex.RLock()
+
 	containerRefs := make([]*ContainerStats, 0, len(sc.containers))
 	for _, containerStats := range sc.containers {
 		containerRefs = append(containerRefs, containerStats)
 	}
+
 	sc.mutex.RUnlock()
 
 	summaries := make([]ContainerStatsSummary, 0, len(containerRefs))
@@ -384,23 +403,25 @@ func calculateStatsSummary(values []float64) StatsSummary {
 		return StatsSummary{}
 	}
 
-	min := values[0]
-	max := values[0]
+	minVal := values[0]
+	maxVal := values[0]
 	sum := 0.0
 
 	for _, value := range values {
-		if value < min {
-			min = value
+		if value < minVal {
+			minVal = value
 		}
-		if value > max {
-			max = value
+
+		if value > maxVal {
+			maxVal = value
 		}
+
 		sum += value
 	}
 
 	return StatsSummary{
-		Min:     min,
-		Max:     max,
+		Min:     minVal,
+		Max:     maxVal,
 		Average: sum / float64(len(values)),
 	}
 }
@@ -434,6 +455,7 @@ func (sc *StatsCollector) CheckMemoryLimits(hsLimitMB, tsLimitMB float64) []Memo
 	}
 
 	summaries := sc.GetSummary()
+
 	var violations []MemoryViolation
 
 	for _, summary := range summaries {

cmd/mapresponses/main.go

@@ -2,6 +2,7 @@ package main
 
 import (
 	"encoding/json"
+	"errors"
 	"fmt"
 	"os"
 
@@ -15,7 +16,10 @@ type MapConfig struct {
 	Directory string `flag:"directory,Directory to read map responses from"`
 }
 
-var mapConfig MapConfig
+var (
+	mapConfig            MapConfig
+	errDirectoryRequired = errors.New("directory is required")
+)
 
 func main() {
 	root := command.C{
@@ -40,7 +44,7 @@ func main() {
 // runIntegrationTest executes the integration test workflow.
 func runOnline(env *command.Env) error {
 	if mapConfig.Directory == "" {
-		return fmt.Errorf("directory is required")
+		return errDirectoryRequired
 	}
 
 	resps, err := mapper.ReadMapResponsesFromDirectory(mapConfig.Directory)
@@ -57,5 +61,6 @@ func runOnline(env *command.Env) error {
 
 	os.Stderr.Write(out)
 	os.Stderr.Write([]byte("\n"))
+
 	return nil
 }

docs/about/contributing.md

@@ -1,3 +1,3 @@
 {%
-    include-markdown "../../CONTRIBUTING.md"
+include-markdown "../../CONTRIBUTING.md"
 %}

docs/about/faq.md

@@ -24,9 +24,12 @@ We are more than happy to exchange emails, or to have dedicated calls before a P
 
 ## When/Why is Feature X going to be implemented?
 
-We don't know. We might be working on it. If you're interested in contributing, please post a feature request about it.
+We use [GitHub Milestones to plan for upcoming Headscale releases](https://github.com/juanfont/headscale/milestones).
+Have a look at [our current plan](https://github.com/juanfont/headscale/milestones) to get an idea when a specific
+feature is about to be implemented. The release plan is subject to change at any time.
 
-Please be aware that there are a number of reasons why we might not accept specific contributions:
+If you're interested in contributing, please post a feature request about it. Please be aware that there are a number of
+reasons why we might not accept specific contributions:
 
 - It is not possible to implement the feature in a way that makes sense in a self-hosted environment.
 - Given that we are reverse-engineering Tailscale to satisfy our own curiosity, we might be interested in implementing the feature ourselves.
@@ -47,8 +50,8 @@ we have a "docker-issues" channel where you can ask for Docker-specific help to
 ## What is the recommended update path? Can I skip multiple versions while updating?
 
 Please follow the steps outlined in the [upgrade guide](../setup/upgrade.md) to update your existing Headscale
-installation. Its best to update from one stable version to the next (e.g. 0.24.0 → 0.25.1 → 0.26.1) in case
-you are multiple releases behind. You should always pick the latest available patch release.
+installation. Its required to update from one stable version to the next (e.g. 0.26.0 → 0.27.1 → 0.28.0) without
+skipping minor versions in between. You should always pick the latest available patch release.
 
 Be sure to check the [changelog](https://github.com/juanfont/headscale/blob/main/CHANGELOG.md) for version specific
 upgrade instructions and breaking changes.
@@ -70,12 +73,12 @@ of Headscale:
 
 1. An environment with 1000 servers
 
-   - they rarely "move" (change their endpoints)
-   - new nodes are added rarely
+    - they rarely "move" (change their endpoints)
+    - new nodes are added rarely
 
-2. An environment with 80 laptops/phones (end user devices)
+1. An environment with 80 laptops/phones (end user devices)
 
-   - nodes move often, e.g. switching from home to office
+    - nodes move often, e.g. switching from home to office
 
 Headscale calculates a map of all nodes that need to talk to each other,
 creating this "world map" requires a lot of CPU time. When an event that
@@ -139,8 +142,8 @@ connect back to the administrator's node. Why do all nodes see the administrator
 `tailscale status`?
 
 This is essentially how Tailscale works. If traffic is allowed to flow in one direction, then both nodes see each other
-in their output of `tailscale status`. Traffic is still filtered according to the ACL, with the exception of `tailscale
-ping` which is always allowed in either direction.
+in their output of `tailscale status`. Traffic is still filtered according to the ACL, with the exception of
+`tailscale ping` which is always allowed in either direction.
 
 See also <https://tailscale.com/kb/1087/device-visibility>.
 
@@ -157,8 +160,41 @@ indicates which part of the policy is invalid. Follow these steps to fix your po
 !!! warning "Full server configuration required"
 
     The above commands to get/set the policy require a complete server configuration file including database settings. A
-    minimal config to [control Headscale via remote CLI](../ref/api.md#grpc) is not sufficient. You may use `headscale
-    -c /path/to/config.yaml` to specify the path to an alternative configuration file.
+    minimal config to [control Headscale via remote CLI](../ref/api.md#grpc) is not sufficient. You may use
+    `headscale -c /path/to/config.yaml` to specify the path to an alternative configuration file.
+
+## How can I migrate back to the recommended IP prefixes?
+
+Tailscale only supports the IP prefixes `100.64.0.0/10` and `fd7a:115c:a1e0::/48` or smaller subnets thereof. The
+following steps can be used to migrate from unsupported IP prefixes back to the supported and recommended ones.
+
+!!! warning "Backup and test in a demo environment required"
+
+    The commands below update the IP addresses of all nodes in your tailnet and this might have a severe impact in your
+    specific environment. At a minimum:
+
+    - [Create a backup of your database](../setup/upgrade.md#backup)
+    - Test the commands below in a representive demo environment. This allows to catch subsequent connectivity errors
+      early and see how the tailnet behaves in your specific environment.
+
+- Stop Headscale
+- Restore the default prefixes in the [configuration file](../ref/configuration.md):
+    ```yaml
+    prefixes:
+      v4: 100.64.0.0/10
+      v6: fd7a:115c:a1e0::/48
+    ```
+- Update the `nodes.ipv4` and `nodes.ipv6` columns in the database and assign each node a unique IPv4 and IPv6 address.
+  The following SQL statement assigns IP addresses based on the node ID:
+    ```sql
+    UPDATE nodes
+    SET ipv4=concat('100.64.', id/256, '.', id%256),
+        ipv6=concat('fd7a:115c:a1e0::', format('%x', id));
+    ```
+- Update the [policy](../ref/acls.md) to reflect the IP address changes (if any)
+- Start Headscale
+
+Nodes should reconnect within a few seconds and pickup their newly assigned IP addresses.
 
 ## How can I avoid to send logs to Tailscale Inc?
 

docs/about/features.md

@@ -5,16 +5,16 @@ to provide self-hosters and hobbyists with an open-source server they can use fo
 provides on overview of Headscale's feature and compatibility with the Tailscale control server:
 
 - [x] Full "base" support of Tailscale's features
-- [x] Node registration
-    - [x] Interactive
-    - [x] Pre authenticated key
+- [x] [Node registration](../ref/registration.md)
+    - [x] [Web authentication](../ref/registration.md#web-authentication)
+    - [x] [Pre authenticated key](../ref/registration.md#pre-authenticated-key)
 - [x] [DNS](../ref/dns.md)
     - [x] [MagicDNS](https://tailscale.com/kb/1081/magicdns)
     - [x] [Global and restricted nameservers (split DNS)](https://tailscale.com/kb/1054/dns#nameservers)
     - [x] [search domains](https://tailscale.com/kb/1054/dns#search-domains)
     - [x] [Extra DNS records (Headscale only)](../ref/dns.md#setting-extra-dns-records)
 - [x] [Taildrop (File Sharing)](https://tailscale.com/kb/1106/taildrop)
-- [x] [Tags](https://tailscale.com/kb/1068/tags)
+- [x] [Tags](../ref/tags.md)
 - [x] [Routes](../ref/routes.md)
     - [x] [Subnet routers](../ref/routes.md#subnet-router)
     - [x] [Exit nodes](../ref/routes.md#exit-node)
@@ -29,7 +29,7 @@ provides on overview of Headscale's feature and compatibility with the Tailscale
       routers](../ref/routes.md#automatically-approve-routes-of-a-subnet-router) and [exit
       nodes](../ref/routes.md#automatically-approve-an-exit-node-with-auto-approvers)
     - [x] [Tailscale SSH](https://tailscale.com/kb/1193/tailscale-ssh)
-* [x] [Node registration using Single-Sign-On (OpenID Connect)](../ref/oidc.md) ([GitHub label "OIDC"](https://github.com/juanfont/headscale/labels/OIDC))
+- [x] [Node registration using Single-Sign-On (OpenID Connect)](../ref/oidc.md) ([GitHub label "OIDC"](https://github.com/juanfont/headscale/labels/OIDC))
     - [x] Basic registration
     - [x] Update user profile from identity provider
     - [ ] OIDC groups cannot be used in ACLs

docs/ref/acls.md

@@ -222,7 +222,7 @@ Allows access to the internet through [exit nodes](routes.md#exit-node). Can onl
 
 ### `autogroup:member`
 
-Includes all untagged devices.
+Includes all [personal (untagged) devices](registration.md/#identity-model).
 
 ```json
 {
@@ -234,7 +234,7 @@ Includes all untagged devices.
 
 ### `autogroup:tagged`
 
-Includes all devices that have at least one tag.
+Includes all devices that [have at least one tag](registration.md/#identity-model).
 
 ```json
 {
@@ -245,7 +245,6 @@ Includes all devices that have at least one tag.
 ```
 
 ### `autogroup:self`
-**(EXPERIMENTAL)**
 
 !!! warning "The current implementation of `autogroup:self` is inefficient"
 
@@ -258,9 +257,11 @@ Includes devices where the same user is authenticated on both the source and des
   "dst": ["autogroup:self:*"]
 }
 ```
+
 *Using `autogroup:self` may cause performance degradation on the Headscale coordinator server in large deployments, as filter rules must be compiled per-node rather than globally and the current implementation is not very efficient.*
 
 If you experience performance issues, consider using more specific ACL rules or limiting the use of `autogroup:self`.
+
 ```json
 {
   // The following rules allow internal users to communicate with their

docs/ref/api.md

@@ -1,4 +1,5 @@
 # API
+
 Headscale provides a [HTTP REST API](#rest-api) and a [gRPC interface](#grpc) which may be used to integrate a [web
 interface](integration/web-ui.md), [remote control Headscale](#setup-remote-control) or provide a base for custom
 integration and tooling.
@@ -30,8 +31,7 @@ headscale apikeys expire --prefix <PREFIX>
 - API endpoint: `/api/v1`, e.g. `https://headscale.example.com/api/v1`
 - Documentation: `/swagger`, e.g. `https://headscale.example.com/swagger`
 - Headscale Version: `/version`, e.g. `https://headscale.example.com/version`
-- Authenticate using HTTP Bearer authentication by sending the [API key](#api) with the HTTP `Authorization: Bearer
-  <API_KEY>` header.
+- Authenticate using HTTP Bearer authentication by sending the [API key](#api) with the HTTP `Authorization: Bearer <API_KEY>` header.
 
 Start by [creating an API key](#api) and test it with the examples below. Read the API documentation provided by your
 Headscale server at `/swagger` for details.
@@ -54,8 +54,8 @@ Headscale server at `/swagger` for details.
 
     ```console
     curl -H "Authorization: Bearer <API_KEY>" \
-        -d user=<USER> -d key=<KEY> \
-        https://headscale.example.com/api/v1/node/register
+        --json '{"user": "<USER>", "authId": "AUTH_ID>"}' \
+        https://headscale.example.com/api/v1/auth/register
     ```
 
 ## gRPC
@@ -72,17 +72,17 @@ The gRPC interface can be used to control a Headscale instance from a remote mac
 
 ### Setup remote control
 
-1.  Download the [`headscale` binary from GitHub's release page](https://github.com/juanfont/headscale/releases). Make
-    sure to use the same version as on the server.
+1. Download the [`headscale` binary from GitHub's release page](https://github.com/juanfont/headscale/releases). Make
+   sure to use the same version as on the server.
 
-1.  Put the binary somewhere in your `PATH`, e.g. `/usr/local/bin/headscale`
+1. Put the binary somewhere in your `PATH`, e.g. `/usr/local/bin/headscale`
 
-1.  Make `headscale` executable: `chmod +x /usr/local/bin/headscale`
+1. Make `headscale` executable: `chmod +x /usr/local/bin/headscale`
 
-1.  [Create an API key](#api) on the Headscale server.
+1. [Create an API key](#api) on the Headscale server.
 
-1.  Provide the connection parameters for the remote Headscale server either via a minimal YAML configuration file or
-    via environment variables:
+1. Provide the connection parameters for the remote Headscale server either via a minimal YAML configuration file or
+   via environment variables:
 
     === "Minimal YAML configuration file"
 
@@ -102,7 +102,7 @@ The gRPC interface can be used to control a Headscale instance from a remote mac
     This instructs the `headscale` binary to connect to a remote instance at `<HEADSCALE_ADDRESS>:<PORT>`, instead of
     connecting to the local instance.
 
-1.  Test the connection by listing all nodes:
+1. Test the connection by listing all nodes:
 
     ```shell
     headscale nodes list

docs/ref/configuration.md

@@ -17,8 +17,8 @@
 
     === "View on GitHub"
 
-        * Development version: <https://github.com/juanfont/headscale/blob/main/config-example.yaml>
-        * Version {{ headscale.version }}: <https://github.com/juanfont/headscale/blob/v{{ headscale.version }}/config-example.yaml>
+        - Development version: <https://github.com/juanfont/headscale/blob/main/config-example.yaml>
+        - Version {{ headscale.version }}: https://github.com/juanfont/headscale/blob/v{{ headscale.version }}/config-example.yaml
 
     === "Download with `wget`"
 

docs/ref/derp.md

@@ -63,10 +63,10 @@ maps fetched via URL or to offer your own, custom DERP servers to nodes.
     ID. You can explicitly disable a specific region by setting its region ID to `null`. The following sample
     `derp.yaml` disables the New York DERP region (which has the region ID 1):
 
-     ```yaml title="derp.yaml"
-     regions:
-       1: null
-     ```
+    ```yaml title="derp.yaml"
+    regions:
+      1: null
+    ```
 
     Use the following configuration to serve the default DERP map (excluding New York) to nodes:
 
@@ -165,11 +165,10 @@ Any Tailscale client may be used to introspect the DERP map and to check for con
 Additional DERP related metrics and information is available via the [metrics and debug
 endpoint](./debug.md#metrics-and-debug-endpoint).
 
-[^1]:
-    This assumes that the default region code of the [configuration file](./configuration.md) is used.
-
 ## Limitations
 
 - The embedded DERP server can't be used for Tailscale's captive portal checks as it doesn't support the `/generate_204`
   endpoint via HTTP on port tcp/80.
 - There are no speed or throughput optimisations, the main purpose is to assist in node connectivity.
+
+[^1]: This assumes that the default region code of the [configuration file](./configuration.md) is used.

docs/ref/dns.md

@@ -25,7 +25,7 @@ hostname and port combination "http://hostname-in-magic-dns.myvpn.example.com:30
 
     Currently, [only A and AAAA records are processed by Tailscale](https://github.com/tailscale/tailscale/blob/v1.86.5/ipn/ipnlocal/node_backend.go#L662).
 
-1.  Configure extra DNS records using one of the available configuration options:
+1. Configure extra DNS records using one of the available configuration options:
 
     === "Static entries, via `dns.extra_records`"
 
@@ -66,12 +66,12 @@ hostname and port combination "http://hostname-in-magic-dns.myvpn.example.com:30
 
         !!! tip "Good to know"
 
-            * The `dns.extra_records_path` option in the [configuration file](./configuration.md) needs to reference the
+            - The `dns.extra_records_path` option in the [configuration file](./configuration.md) needs to reference the
               JSON file containing extra DNS records.
-            * Be sure to "sort keys" and produce a stable output in case you generate the JSON file with a script.
+            - Be sure to "sort keys" and produce a stable output in case you generate the JSON file with a script.
               Headscale uses a checksum to detect changes to the file and a stable output avoids unnecessary processing.
 
-1.  Verify that DNS records are properly set using the DNS querying tool of your choice:
+1. Verify that DNS records are properly set using the DNS querying tool of your choice:
 
     === "Query with dig"
 
@@ -87,7 +87,7 @@ hostname and port combination "http://hostname-in-magic-dns.myvpn.example.com:30
         100.64.0.3
         ```
 
-1.  Optional: Setup the reverse proxy
+1. Optional: Setup the reverse proxy
 
     The motivating example here was to be able to access internal monitoring services on the same host without
     specifying a port, depicted as NGINX configuration snippet:

docs/ref/integration/web-ui.md

@@ -20,5 +20,7 @@ Headscale doesn't provide a built-in web interface but users may pick one from t
 - [headscale-console](https://github.com/rickli-cloud/headscale-console) - WebAssembly-based client supporting SSH, VNC
   and RDP with optional self-service capabilities
 - [headscale-piying](https://github.com/wszgrcy/headscale-piying) - headscale web ui,support visual ACL configuration
+- [HeadControl](https://github.com/ahmadzip/HeadControl) - Minimal Headscale admin dashboard, built with Go and HTMX
+- [Headscale Manager](https://github.com/hkdone/headscalemanager) - Headscale UI for Android
 
 You can ask for support on our [Discord server](https://discord.gg/c84AZQhmpx) in the "web-interfaces" channel.

docs/ref/oidc.md

@@ -40,9 +40,9 @@ A basic configuration connects Headscale to an identity provider and typically r
 
 === "Identity provider"
 
-    * Create a new confidential client (`Client ID`, `Client secret`)
-    * Add Headscale's OIDC callback URL as valid redirect URL: `https://headscale.example.com/oidc/callback`
-    * Configure additional parameters to improve user experience such as: name, description, logo, …
+    - Create a new confidential client (`Client ID`, `Client secret`)
+    - Add Headscale's OIDC callback URL as valid redirect URL: `https://headscale.example.com/oidc/callback`
+    - Configure additional parameters to improve user experience such as: name, description, logo, …
 
 ### Enable PKCE (recommended)
 
@@ -63,8 +63,8 @@ recommended and needs to be configured for Headscale and the identity provider a
 
 === "Identity provider"
 
-    * Enable PKCE for the headscale client
-    * Set the PKCE challenge method to "S256"
+    - Enable PKCE for the headscale client
+    - Set the PKCE challenge method to "S256"
 
 ### Authorize users with filters
 
@@ -75,11 +75,11 @@ are configured, a user needs to pass all of them.
 
 === "Allowed domains"
 
-    * Check the email domain of each authenticating user against the list of allowed domains and only authorize users
+    - Check the email domain of each authenticating user against the list of allowed domains and only authorize users
       whose email domain matches `example.com`.
-    * A verified email address is required [unless email verification is disabled](#control-email-verification).
-    * Access allowed: `alice@example.com`
-    * Access denied: `bob@example.net`
+    - A verified email address is required [unless email verification is disabled](#control-email-verification).
+    - Access allowed: `alice@example.com`
+    - Access denied: `bob@example.net`
 
     ```yaml hl_lines="5-6"
     oidc:
@@ -92,11 +92,11 @@ are configured, a user needs to pass all of them.
 
 === "Allowed users/emails"
 
-    * Check the email address of each authenticating user against the list of allowed email addresses and only authorize
+    - Check the email address of each authenticating user against the list of allowed email addresses and only authorize
       users whose email is part of the `allowed_users` list.
-    * A verified email address is required [unless email verification is disabled](#control-email-verification).
-    * Access allowed: `alice@example.com`, `bob@example.net`
-    * Access denied: `mallory@example.net`
+    - A verified email address is required [unless email verification is disabled](#control-email-verification).
+    - Access allowed: `alice@example.com`, `bob@example.net`
+    - Access denied: `mallory@example.net`
 
     ```yaml hl_lines="5-7"
     oidc:
@@ -110,10 +110,10 @@ are configured, a user needs to pass all of them.
 
 === "Allowed groups"
 
-    * Use the OIDC `groups` claim of each authenticating user to get their group membership and only authorize users
+    - Use the OIDC `groups` claim of each authenticating user to get their group membership and only authorize users
       which are members in at least one of the referenced groups.
-    * Access allowed: users in the `headscale_users` group
-    * Access denied: users without groups, users with other groups
+    - Access allowed: users in the `headscale_users` group
+    - Access denied: users without groups, users with other groups
 
     ```yaml hl_lines="5-7"
     oidc:
@@ -163,7 +163,6 @@ Access Token.
     Please keep in mind that the Access Token is typically a short-lived token that expires within a few minutes. You
     will have to configure token expiration in your identity provider to avoid frequent re-authentication.
 
-
     ```yaml hl_lines="5"
     oidc:
       issuer: "https://sso.example.com"
@@ -175,6 +174,7 @@ Access Token.
 !!! tip "Expire a node and force re-authentication"
 
     A node can be expired immediately via:
+
     ```console
     headscale node expire -i <NODE_ID>
     ```
@@ -185,7 +185,8 @@ You may refer to users in the Headscale policy via:
 
 - Email address
 - Username
-- Provider identifier (only available in the database or from your identity provider)
+- Provider identifier (this value is currently only available from the [API](api.md), database or directly from your
+  identity provider)
 
 !!! note "A user identifier in the policy must contain a single `@`"
 
@@ -200,6 +201,34 @@ You may refer to users in the Headscale policy via:
     consequences for Headscale where a policy might no longer work or a user might obtain more access by hijacking an
     existing username or email address.
 
+!!! tip "Howto use the provider identifier in the policy"
+
+    The provider identifier uniquely identifies an OIDC user and a well-behaving identity provider guarantees that this
+    value never changes for a particular user. It is usually an opaque and long string and its value is currently only
+    available from the [API](api.md), database or directly from your identity provider).
+
+    Use the [API](api.md) with the `/api/v1/user` endpoint to fetch the provider identifier (`providerId`). The value
+    (be sure to append an `@` in case the provider identifier doesn't already contain an `@` somewhere) can be used
+    directly to reference a user in the policy. To improve readability of the policy, one may use the `groups` section
+    as an alias:
+
+    ```json
+    {
+      "groups": {
+        "group:alice": [
+          "https://soo.example.com/oauth2/openid/59ac9125-c31b-46c5-814e-06242908cf57@"
+        ]
+      },
+      "acls": [
+        {
+          "action": "accept",
+          "src": ["group:alice"],
+          "dst": ["*:*"]
+        }
+      ]
+    }
+    ```
+
 ## Supported OIDC claims
 
 Headscale uses [the standard OIDC claims](https://openid.net/specs/openid-connect-core-1_0.html#StandardClaims) to
@@ -250,8 +279,9 @@ Authelia is fully supported by Headscale.
 ### Authentik
 
 - Authentik is fully supported by Headscale.
-- [Headscale does not JSON Web Encryption](https://github.com/juanfont/headscale/issues/2446). Leave the field
+- [Headscale does not support JSON Web Encryption](https://github.com/juanfont/headscale/issues/2446). Leave the field
   `Encryption Key` in the providers section unset.
+- See Authentik's [Integrate with Headscale](https://integrations.goauthentik.io/networking/headscale/)
 
 ### Google OAuth
 
@@ -273,22 +303,30 @@ Console.
 #### Steps
 
 1. Go to [Google Console](https://console.cloud.google.com) and login or create an account if you don't have one.
-2. Create a project (if you don't already have one).
-3. On the left hand menu, go to `APIs and services` -> `Credentials`
-4. Click `Create Credentials` -> `OAuth client ID`
-5. Under `Application Type`, choose `Web Application`
-6. For `Name`, enter whatever you like
-7. Under `Authorised redirect URIs`, add Headscale's OIDC callback URL: `https://headscale.example.com/oidc/callback`
-8. Click `Save` at the bottom of the form
-9. Take note of the `Client ID` and `Client secret`, you can also download it for reference if you need it.
-10. [Configure Headscale following the "Basic configuration" steps](#basic-configuration). The issuer URL for Google
-    OAuth is: `https://accounts.google.com`.
+1. Create a project (if you don't already have one).
+1. On the left hand menu, go to `APIs and services` -> `Credentials`
+1. Click `Create Credentials` -> `OAuth client ID`
+1. Under `Application Type`, choose `Web Application`
+1. For `Name`, enter whatever you like
+1. Under `Authorised redirect URIs`, add Headscale's OIDC callback URL: `https://headscale.example.com/oidc/callback`
+1. Click `Save` at the bottom of the form
+1. Take note of the `Client ID` and `Client secret`, you can also download it for reference if you need it.
+1. [Configure Headscale following the "Basic configuration" steps](#basic-configuration). The issuer URL for Google
+   OAuth is: `https://accounts.google.com`.
 
 ### Kanidm
 
 - Kanidm is fully supported by Headscale.
 - Groups for the [allowed groups filter](#authorize-users-with-filters) need to be specified with their full SPN, for
   example: `headscale_users@sso.example.com`.
+- Kanidm sends the full SPN (`alice@sso.example.com`) as `preferred_username` by default. Headscale stores this value as
+  username which might be confusing as the username and email fields now contain values that look like an email address.
+  [Kanidm can be configured to send the short username as `preferred_username` attribute
+  instead](https://kanidm.github.io/kanidm/stable/integrations/oauth2.html#short-names):
+    ```console
+    kanidm system oauth2 prefer-short-username <client name>
+    ```
+    Once configured, the short username in Headscale will be `alice` and can be referred to as `alice@` in the policy.
 
 ### Keycloak
 
@@ -332,3 +370,9 @@ oidc:
 
 Groups for the [allowed groups filter](#authorize-users-with-filters) need to be specified with their group ID(UUID) instead
 of the group name.
+
+## Switching OIDC providers
+
+Headscale only supports a single OIDC provider in its configuration, but it does store the provider identifier of each user. When switching providers, this might lead to issues with existing users: all user details (name, email, groups) might be identical with the new provider, but the identifier will differ. Headscale will be unable to create a new user as the name and email will already be in use for the existing users.
+
+At this time, you will need to manually update the `provider_identifier` column in the `users` table for each user with the appropriate value for the new provider. The identifier is built from the `iss` and `sub` claims of the OIDC ID token, for example `https://id.example.com/12340987`.

docs/ref/registration.md

@@ -0,0 +1,141 @@
+# Registration methods
+
+Headscale supports multiple ways to register a node. The preferred registration method depends on the identity of a node
+and your use case.
+
+## Identity model
+
+Tailscale's identity model distinguishes between personal and tagged nodes:
+
+- A personal node (or user-owned node) is owned by a human and typically refers to end-user devices such as laptops,
+  workstations or mobile phones. End-user devices are managed by a single user.
+- A tagged node (or service-based node or non-human node) provides services to the network. Common examples include web-
+  and database servers. Those nodes are typically managed by a team of users. Some additional restrictions apply for
+  tagged nodes, e.g. a tagged node is not allowed to [Tailscale SSH](https://tailscale.com/kb/1193/tailscale-ssh) into a
+  personal node.
+
+Headscale implements Tailscale's identity model and distinguishes between personal and tagged nodes where a personal
+node is owned by a Headscale user and a tagged node is owned by a tag. Tagged devices are grouped under the special user
+`tagged-devices`.
+
+## Registration methods
+
+There are two main ways to register new nodes, [web authentication](#web-authentication) and [registration with a pre
+authenticated key](#pre-authenticated-key). Both methods can be used to register personal and tagged nodes.
+
+### Web authentication
+
+Web authentication is the default method to register a new node. It's interactive, where the client initiates the
+registration and the Headscale administrator needs to approve the new node before it is allowed to join the network. A
+node can be approved with:
+
+- Headscale CLI (described in this documentation)
+- [Headscale API](api.md)
+- Or delegated to an identity provider via [OpenID Connect](oidc.md)
+
+Web authentication relies on the presence of a Headscale user. Use the `headscale users` command to create a new user:
+
+```console
+headscale users create <USER>
+```
+
+=== "Personal devices"
+
+    Run `tailscale up` to login your personal device:
+
+    ```console
+    tailscale up --login-server <YOUR_HEADSCALE_URL>
+    ```
+
+    Usually, a browser window with further instructions is opened. This page explains how to complete the registration
+    on your Headscale server and it also prints the Auth ID required to approve the node:
+
+    ```console
+    headscale auth register --user <USER> --auth-id <AUTH_ID>
+    ```
+
+    Congrations, the registration of your personal node is complete and it should be listed as "online" in the output of
+    `headscale nodes list`. The "User" column displays `<USER>` as the owner of the node.
+
+=== "Tagged devices"
+
+    Your Headscale user needs to be authorized to register tagged devices. This authorization is specified in the
+    [`tagOwners`](https://tailscale.com/kb/1337/policy-syntax#tag-owners) section of the [ACL](acls.md). A simple
+    example looks like this:
+
+    ```json title="The user alice can register nodes tagged with tag:server"
+    {
+      "tagOwners": {
+        "tag:server": ["alice@"]
+      },
+      // more rules
+    }
+    ```
+
+    Run `tailscale up` and provide at least one tag to login a tagged device:
+
+    ```console
+    tailscale up --login-server <YOUR_HEADSCALE_URL> --advertise-tags tag:<TAG>
+    ```
+
+    Usually, a browser window with further instructions is opened. This page explains how to complete the registration
+    on your Headscale server and it also prints the Auth ID required to approve the node:
+
+    ```console
+    headscale auth register --user <USER> --auth-id <AUTH_ID>
+    ```
+
+    Headscale checks that `<USER>` is allowed to register a node with the specified tag(s) and then transfers ownership
+    of the new node to the special user `tagged-devices`. The registration of a tagged node is complete and it should be
+    listed as "online" in the output of `headscale nodes list`. The "User" column displays `tagged-devices` as the owner
+    of the node. See the "Tags" column for the list of assigned tags.
+
+### Pre authenticated key
+
+Registration with a pre authenticated key (or auth key) is a non-interactive way to register a new node. The Headscale
+administrator creates a preauthkey upfront and this preauthkey can then be used to register a node non-interactively.
+Its best suited for automation.
+
+=== "Personal devices"
+
+    A personal node is always assigned to a Headscale user. Use the `headscale users` command to create a new user:
+
+    ```console
+    headscale users create <USER>
+    ```
+
+    Use the `headscale user list` command to learn its `<USER_ID>` and create a new pre authenticated key for your user:
+
+    ```console
+    headscale preauthkeys create --user <USER_ID>
+    ```
+
+    The above prints a pre authenticated key with the default settings (can be used once and is valid for one hour). Use
+    this auth key to register a node non-interactively:
+
+    ```console
+    tailscale up --login-server <YOUR_HEADSCALE_URL> --authkey <YOUR_AUTH_KEY>
+    ```
+
+    Congrations, the registration of your personal node is complete and it should be listed as "online" in the output of
+    `headscale nodes list`. The "User" column displays `<USER>` as the owner of the node.
+
+=== "Tagged devices"
+
+    Create a new pre authenticated key and provide at least one tag:
+
+    ```console
+    headscale preauthkeys create --tags tag:<TAG>
+    ```
+
+    The above prints a pre authenticated key with the default settings (can be used once and is valid for one hour). Use
+    this auth key to register a node non-interactively. You don't need to provide the `--advertise-tags` parameter as
+    the tags are automatically read from the pre authenticated key:
+
+    ```console
+    tailscale up --login-server <YOUR_HEADSCALE_URL> --authkey <YOUR_AUTH_KEY>
+    ```
+
+    The registration of a tagged node is complete and it should be listed as "online" in the output of
+    `headscale nodes list`. The "User" column displays `tagged-devices` as the owner of the node. See the "Tags" column for the list of
+    assigned tags.

docs/ref/tags.md

@@ -0,0 +1,54 @@
+# Tags
+
+Headscale supports Tailscale tags. Please read [Tailscale's tag documentation](https://tailscale.com/kb/1068/tags) to
+learn how tags work and how to use them.
+
+Tags can be applied during [node registration](registration.md):
+
+- using the `--advertise-tags` flag, see [web authentication for tagged devices](registration.md#__tabbed_1_2)
+- using a tagged pre authenticated key, see [how to create and use it](registration.md#__tabbed_2_2)
+
+Administrators can manage tags with:
+
+- Headscale CLI
+- [Headscale API](api.md)
+
+## Common operations
+
+### Manage tags for a node
+
+Run `headscale nodes list` to list the tags for a node.
+
+Use the `headscale nodes tag` command to modify the tags for a node. At least one tag is required and multiple tags can
+be provided as comma separated list. The following command sets the tags `tag:server` and `tag:prod` on node with ID 1:
+
+```console
+headscale nodes tag -i 1 -t tag:server,tag:prod
+```
+
+### Convert from personal to tagged node
+
+Use the `headscale nodes tag` command to convert a personal (user-owned) node to a tagged node:
+
+```console
+headscale nodes tag -i <NODE_ID> -t <TAG>
+```
+
+The node is now owned by the special user `tagged-devices` and has the specified tags assigned to it.
+
+### Convert from tagged to personal node
+
+Tagged nodes can return to personal (user-owned) nodes by re-authenticating with:
+
+```console
+tailscale up --login-server <YOUR_HEADSCALE_URL> --advertise-tags= --force-reauth
+```
+
+Usually, a browser window with further instructions is opened. This page explains how to complete the registration on
+your Headscale server and it also prints the Auth ID required to approve the node:
+
+```console
+headscale auth register --user <USER> --auth-id <AUTH_ID>
+```
+
+All previously assigned tags get removed and the node is now owned by the user specified in the above command.

docs/ref/tls.md

@@ -50,7 +50,7 @@ Headscale uses [autocert](https://pkg.go.dev/golang.org/x/crypto/acme/autocert),
 If you want to validate that certificate renewal completed successfully, this can be done either manually, or through external monitoring software. Two examples of doing this manually:
 
 1. Open the URL for your headscale server in your browser of choice, and manually inspecting the expiry date of the certificate you receive.
-2. Or, check remotely from CLI using `openssl`:
+1. Or, check remotely from CLI using `openssl`:
 
 ```console
 $ openssl s_client -servername [hostname] -connect [hostname]:443 | openssl x509 -noout -dates

docs/setup/install/container.md

@@ -18,17 +18,17 @@ Registry](https://github.com/juanfont/headscale/pkgs/container/headscale). The c
 
 ## Configure and run headscale
 
-1.  Create a directory on the container host to store headscale's [configuration](../../ref/configuration.md) and the [SQLite](https://www.sqlite.org/) database:
+1. Create a directory on the container host to store headscale's [configuration](../../ref/configuration.md) and the [SQLite](https://www.sqlite.org/) database:
 
     ```shell
     mkdir -p ./headscale/{config,lib}
     cd ./headscale
     ```
 
-1.  Download the example configuration for your chosen version and save it as: `$(pwd)/config/config.yaml`. Adjust the
-    configuration to suit your local environment. See [Configuration](../../ref/configuration.md) for details.
+1. Download the example configuration for your chosen version and save it as: `$(pwd)/config/config.yaml`. Adjust the
+   configuration to suit your local environment. See [Configuration](../../ref/configuration.md) for details.
 
-1.  Start headscale from within the previously created `./headscale` directory:
+1. Start headscale from within the previously created `./headscale` directory:
 
     ```shell
     docker run \
@@ -74,7 +74,7 @@ Registry](https://github.com/juanfont/headscale/pkgs/container/headscale). The c
             test: ["CMD", "headscale", "health"]
     ```
 
-1.  Verify headscale is running:
+1. Verify headscale is running:
 
     Follow the container logs:
 

docs/setup/install/official.md

@@ -9,7 +9,7 @@ It is recommended to use our DEB packages to install headscale on a Debian based
 local user to run headscale, provide a default configuration and ship with a systemd service file. Supported
 distributions are Ubuntu 22.04 or newer, Debian 12 or newer.
 
-1.  Download the [latest headscale package](https://github.com/juanfont/headscale/releases/latest) for your platform (`.deb` for Ubuntu and Debian).
+1. Download the [latest headscale package](https://github.com/juanfont/headscale/releases/latest) for your platform (`.deb` for Ubuntu and Debian).
 
     ```shell
     HEADSCALE_VERSION="" # See above URL for latest version, e.g. "X.Y.Z" (NOTE: do not add the "v" prefix!)
@@ -18,25 +18,25 @@ distributions are Ubuntu 22.04 or newer, Debian 12 or newer.
      "https://github.com/juanfont/headscale/releases/download/v${HEADSCALE_VERSION}/headscale_${HEADSCALE_VERSION}_linux_${HEADSCALE_ARCH}.deb"
     ```
 
-1.  Install headscale:
+1. Install headscale:
 
     ```shell
     sudo apt install ./headscale.deb
     ```
 
-1.  [Configure headscale by editing the configuration file](../../ref/configuration.md):
+1. [Configure headscale by editing the configuration file](../../ref/configuration.md):
 
     ```shell
     sudo nano /etc/headscale/config.yaml
     ```
 
-1.  Enable and start the headscale service:
+1. Enable and start the headscale service:
 
     ```shell
     sudo systemctl enable --now headscale
     ```
 
-1.  Verify that headscale is running as intended:
+1. Verify that headscale is running as intended:
 
     ```shell
     sudo systemctl status headscale
@@ -56,20 +56,20 @@ This section describes the installation of headscale according to the [Requireme
 assumptions](../requirements.md#assumptions). Headscale is run by a dedicated local user and the service itself is
 managed by systemd.
 
-1.  Download the latest [`headscale` binary from GitHub's release page](https://github.com/juanfont/headscale/releases):
+1. Download the latest [`headscale` binary from GitHub's release page](https://github.com/juanfont/headscale/releases):
 
     ```shell
     sudo wget --output-document=/usr/bin/headscale \
     https://github.com/juanfont/headscale/releases/download/v<HEADSCALE VERSION>/headscale_<HEADSCALE VERSION>_linux_<ARCH>
     ```
 
-1.  Make `headscale` executable:
+1. Make `headscale` executable:
 
     ```shell
     sudo chmod +x /usr/bin/headscale
     ```
 
-1.  Add a dedicated local user to run headscale:
+1. Add a dedicated local user to run headscale:
 
     ```shell
     sudo useradd \
@@ -81,38 +81,38 @@ managed by systemd.
      headscale
     ```
 
-1.  Download the example configuration for your chosen version and save it as: `/etc/headscale/config.yaml`. Adjust the
-    configuration to suit your local environment. See [Configuration](../../ref/configuration.md) for details.
+1. Download the example configuration for your chosen version and save it as: `/etc/headscale/config.yaml`. Adjust the
+   configuration to suit your local environment. See [Configuration](../../ref/configuration.md) for details.
 
     ```shell
     sudo mkdir -p /etc/headscale
     sudo nano /etc/headscale/config.yaml
     ```
 
-1.  Copy [headscale's systemd service file](https://github.com/juanfont/headscale/blob/main/packaging/systemd/headscale.service)
-    to `/etc/systemd/system/headscale.service` and adjust it to suit your local setup. The following parameters likely need
-    to be modified: `ExecStart`, `WorkingDirectory`, `ReadWritePaths`.
+1. Copy [headscale's systemd service file](https://github.com/juanfont/headscale/blob/main/packaging/systemd/headscale.service)
+   to `/etc/systemd/system/headscale.service` and adjust it to suit your local setup. The following parameters likely need
+   to be modified: `ExecStart`, `WorkingDirectory`, `ReadWritePaths`.
 
-1.  In `/etc/headscale/config.yaml`, override the default `headscale` unix socket with a path that is writable by the
-    `headscale` user or group:
+1. In `/etc/headscale/config.yaml`, override the default `headscale` unix socket with a path that is writable by the
+   `headscale` user or group:
 
     ```yaml title="config.yaml"
     unix_socket: /var/run/headscale/headscale.sock
     ```
 
-1.  Reload systemd to load the new configuration file:
+1. Reload systemd to load the new configuration file:
 
     ```shell
     systemctl daemon-reload
     ```
 
-1.  Enable and start the new headscale service:
+1. Enable and start the new headscale service:
 
     ```shell
     systemctl enable --now headscale
     ```
 
-1.  Verify that headscale is running as intended:
+1. Verify that headscale is running as intended:
 
     ```shell
     systemctl status headscale

docs/setup/requirements.md

@@ -46,7 +46,6 @@ The headscale documentation and the provided examples are written with a few ass
 
 Please adjust to your local environment accordingly.
 
-[^1]:
-    The Tailscale client assumes HTTPS on port 443 in certain situations. Serving headscale either via HTTP or via HTTPS
-    on a port other than 443 is possible but sticking with HTTPS on port 443 is strongly recommended for production
-    setups. See [issue 2164](https://github.com/juanfont/headscale/issues/2164) for more information.
+[^1]: The Tailscale client assumes HTTPS on port 443 in certain situations. Serving headscale either via HTTP or via
+    HTTPS on a port other than 443 is possible but sticking with HTTPS on port 443 is strongly recommended for
+    production setups. See [issue 2164](https://github.com/juanfont/headscale/issues/2164) for more information.

docs/setup/upgrade.md

@@ -1,10 +1,50 @@
 # Upgrade an existing installation
 
-Update an existing headscale installation to a new version:
+!!! tip "Required update path"
+
+    Its required to update from one stable version to the next (e.g. 0.26.0 → 0.27.1 → 0.28.0) without skipping minor
+    versions in between. You should always pick the latest available patch release.
+
+Update an existing Headscale installation to a new version:
 
 - Read the announcement on the [GitHub releases](https://github.com/juanfont/headscale/releases) page for the new
-  version. It lists the changes of the release along with possible breaking changes.
-- **Create a backup of your database.**
-- Update headscale to the new version, preferably by following the same installation method.
+  version. It lists the changes of the release along with possible breaking changes and version-specific upgrade
+  instructions.
+- Stop Headscale
+- **[Create a backup of your installation](#backup)**
+- Update Headscale to the new version, preferably by following the same installation method.
 - Compare and update the [configuration](../ref/configuration.md) file.
-- Restart headscale.
+- Start Headscale
+
+## Backup
+
+Headscale applies database migrations during upgrades and we highly recommend to create a backup of your database before
+upgrading. A full backup of Headscale depends on your individual setup, but below are some typical setup scenarios.
+
+=== "Standard installation"
+
+    A installation that follows our [official releases](install/official.md) setup guide uses the following paths:
+
+    - [Configuration file](../ref/configuration.md): `/etc/headscale/config.yaml`
+    - Data directory: `/var/lib/headscale`
+    - SQLite as database: `/var/lib/headscale/db.sqlite`
+
+    ```console
+    TIMESTAMP=$(date +%Y%m%d%H%M%S)
+    cp -aR /etc/headscale /etc/headscale.backup-$TIMESTAMP
+    cp -aR /var/lib/headscale /var/lib/headscale.backup-$TIMESTAMP
+    ```
+
+=== "Container"
+
+    A installation that follows our [container](install/container.md) setup guide uses a single source volume directory
+    that contains the configuration file, data directory and the SQLite database.
+
+    ```console
+    cp -aR /path/to/headscale /path/to/headscale.backup-$(date +%Y%m%d%H%M%S)
+    ```
+
+=== "PostgreSQL"
+
+    Please follow PostgreSQL's [Backup and Restore](https://www.postgresql.org/docs/current/backup.html) documentation
+    to create a backup of your PostgreSQL database.

docs/usage/connect/android.md

@@ -6,7 +6,7 @@ This documentation has the goal of showing how a user can use the official Andro
 
 Install the official Tailscale Android client from the [Google Play Store](https://play.google.com/store/apps/details?id=com.tailscale.ipn) or [F-Droid](https://f-droid.org/packages/com.tailscale.ipn/).
 
-## Connect via normal, interactive login
+## Connect via web authentication
 
 - Open the app and select the settings menu in the upper-right corner
 - Tap on `Accounts`
@@ -15,7 +15,7 @@ Install the official Tailscale Android client from the [Google Play Store](https
 - The client connects automatically as soon as the node registration is complete on headscale. Until then, nothing is
   visible in the server logs.
 
-## Connect using a preauthkey
+## Connect using a pre authenticated key
 
 - Open the app and select the settings menu in the upper-right corner
 - Tap on `Accounts`
@@ -24,5 +24,5 @@ Install the official Tailscale Android client from the [Google Play Store](https
 - Open the settings menu in the upper-right corner
 - Tap on `Accounts`
 - In the kebab menu icon (three dots) in the upper-right corner select `Use an auth key`
-- Enter your [preauthkey generated from headscale](../getting-started.md#using-a-preauthkey)
+- Enter your [preauthkey generated from headscale](../../ref/registration.md#pre-authenticated-key)
 - If needed, tap `Log in` on the main screen. You should now be connected to your headscale.

docs/usage/connect/windows.md

@@ -54,6 +54,6 @@ This typically means that the registry keys above was not set appropriately.
 To reset and try again, it is important to do the following:
 
 1. Shut down the Tailscale service (or the client running in the tray)
-2. Delete Tailscale Application data folder, located at `C:\Users\<USERNAME>\AppData\Local\Tailscale` and try to connect again.
-3. Ensure the Windows node is deleted from headscale (to ensure fresh setup)
-4. Start Tailscale on the Windows machine and retry the login.
+1. Delete Tailscale Application data folder, located at `C:\Users\<USERNAME>\AppData\Local\Tailscale` and try to connect again.
+1. Ensure the Windows node is deleted from headscale (to ensure fresh setup)
+1. Start Tailscale on the Windows machine and retry the login.

docs/usage/getting-started.md

@@ -5,13 +5,13 @@ This page helps you get started with headscale and provides a few usage examples
 
 !!! note "Prerequisites"
 
-    * Headscale is installed and running as system service. Read the [setup section](../setup/requirements.md) for
+    - Headscale is installed and running as system service. Read the [setup section](../setup/requirements.md) for
       installation instructions.
-    * The configuration file exists and is adjusted to suit your environment, see
+    - The configuration file exists and is adjusted to suit your environment, see
       [Configuration](../ref/configuration.md) for details.
-    * Headscale is reachable from the Internet. Verify this by visiting the health endpoint:
+    - Headscale is reachable from the Internet. Verify this by visiting the health endpoint:
       https://headscale.example.com/health
-    * The Tailscale client is installed, see [Client and operating system support](../about/clients.md) for more
+    - The Tailscale client is installed, see [Client and operating system support](../about/clients.md) for more
       information.
 
 ## Getting help
@@ -48,9 +48,9 @@ options, run:
     communicate with the headscale service you have to make sure the unix socket is accessible by the user that runs
     the commands. In general you can achieve this by any of the following methods:
 
-      * using `sudo`
-      * run the commands as user `headscale`
-      * add your user to the `headscale` group
+    - using `sudo`
+    - run the commands as user `headscale`
+    - add your user to the `headscale` group
 
     To verify you can run the following command using your preferred method:
 
@@ -60,10 +60,9 @@ options, run:
 
 ## Manage headscale users
 
-In headscale, a node (also known as machine or device) is always assigned to a
-headscale user. Such a headscale user may have many nodes assigned to them and
-can be managed with the `headscale users` command. Invoke the built-in help for
-more information: `headscale users --help`.
+In headscale, a node (also known as machine or device) is [typically assigned to a headscale
+user](../ref/registration.md#identity-model). Such a headscale user may have many nodes assigned to them and can be
+managed with the `headscale users` command. Invoke the built-in help for more information: `headscale users --help`.
 
 ### Create a headscale user
 
@@ -97,11 +96,12 @@ more information: `headscale users --help`.
 
 ## Register a node
 
-One has to register a node first to use headscale as coordination with Tailscale. The following examples work for the
-Tailscale client on Linux/BSD operating systems. Alternatively, follow the instructions to connect
-[Android](connect/android.md), [Apple](connect/apple.md) or [Windows](connect/windows.md) devices.
+One has to [register a node](../ref/registration.md) first to use headscale as coordination server with Tailscale. The
+following examples work for the Tailscale client on Linux/BSD operating systems. Alternatively, follow the instructions
+to connect [Android](connect/android.md), [Apple](connect/apple.md) or [Windows](connect/windows.md) devices. Read
+[registration methods](../ref/registration.md) for an overview of available registration methods.
 
-### Normal, interactive login
+### [Web authentication](../ref/registration.md#web-authentication)
 
 On a client machine, run the `tailscale up` command and provide the FQDN of your headscale instance as argument:
 
@@ -109,27 +109,26 @@ On a client machine, run the `tailscale up` command and provide the FQDN of your
 tailscale up --login-server <YOUR_HEADSCALE_URL>
 ```
 
-Usually, a browser window with further instructions is opened and contains the value for `<YOUR_MACHINE_KEY>`. Approve
-and register the node on your headscale server:
+Usually, a browser window with further instructions is opened. This page explains how to complete the registration on
+your headscale server and it also prints the Auth ID required to approve the node:
 
 === "Native"
 
     ```shell
-    headscale nodes register --user <USER> --key <YOUR_MACHINE_KEY>
+    headscale auth register --user <USER> --auth-id <AUTH_ID>
     ```
 
 === "Container"
 
     ```shell
     docker exec -it headscale \
-      headscale nodes register --user <USER> --key <YOUR_MACHINE_KEY>
+      headscale auth register --user <USER> --auth-id <AUTH_ID>
     ```
 
-### Using a preauthkey
+### [Pre authenticated key](../ref/registration.md#pre-authenticated-key)
 
 It is also possible to generate a preauthkey and register a node non-interactively. First, generate a preauthkey on the
-headscale instance. By default, the key is valid for one hour and can only be used once (see `headscale preauthkeys
---help` for other options):
+headscale instance. By default, the key is valid for one hour and can only be used once (see `headscale preauthkeys --help` for other options):
 
 === "Native"
 

flake.lock

@@ -20,11 +20,11 @@
     },
     "nixpkgs": {
       "locked": {
-        "lastModified": 1768875095,
-        "narHash": "sha256-dYP3DjiL7oIiiq3H65tGIXXIT1Waiadmv93JS0sS+8A=",
+        "lastModified": 1772956932,
+        "narHash": "sha256-M0yS4AafhKxPPmOHGqIV0iKxgNO8bHDWdl1kOwGBwRY=",
         "owner": "NixOS",
         "repo": "nixpkgs",
-        "rev": "ed142ab1b3a092c4d149245d0c4126a5d7ea00b0",
+        "rev": "608d0cadfed240589a7eea422407a547ad626a14",
         "type": "github"
       },
       "original": {

flake.nix

@@ -26,8 +26,8 @@
       overlays.default = _: prev:
         let
           pkgs = nixpkgs.legacyPackages.${prev.stdenv.hostPlatform.system};
-          buildGo = pkgs.buildGo125Module;
-          vendorHash = "sha256-dWsDgI5K+8mFw4PA5gfFBPCSqBJp5RcZzm0ML1+HsWw=";
+          buildGo = pkgs.buildGo126Module;
+          vendorHash = "sha256-oUN53ELb3+xn4yA7lEfXyT2c7NxbQC6RtbkGVq6+RLU=";
         in
         {
           headscale = buildGo {
@@ -62,16 +62,16 @@
 
           protoc-gen-grpc-gateway = buildGo rec {
             pname = "grpc-gateway";
-            version = "2.27.4";
+            version = "2.27.7";
 
             src = pkgs.fetchFromGitHub {
               owner = "grpc-ecosystem";
               repo = "grpc-gateway";
               rev = "v${version}";
-              sha256 = "sha256-4bhEQTVV04EyX/qJGNMIAQDcMWcDVr1tFkEjBHpc2CA=";
+              sha256 = "sha256-6R0EhNnOBEISJddjkbVTcBvUuU5U3r9Hu2UPfAZDep4=";
             };
 
-            vendorHash = "sha256-ohZW/uPdt08Y2EpIQ2yeyGSjV9O58+QbQQqYrs6O8/g=";
+            vendorHash = "sha256-SOAbRrzMf2rbKaG9PGSnPSLY/qZVgbHcNjOLmVonycY=";
 
             nativeBuildInputs = [ pkgs.installShellFiles ];
 
@@ -94,19 +94,46 @@
             subPackages = [ "." ];
           };
 
-          # Upstream does not override buildGoModule properly,
-          # importing a specific module, so comment out for now.
-          # golangci-lint = prev.golangci-lint.override {
-          #   buildGoModule = buildGo;
-          # };
-          # golangci-lint-langserver = prev.golangci-lint.override {
-          #   buildGoModule = buildGo;
-          # };
+          # Build golangci-lint with Go 1.26 (upstream uses hardcoded Go version)
+          golangci-lint = buildGo rec {
+            pname = "golangci-lint";
+            version = "2.9.0";
 
-          # The package uses buildGo125Module, not the convention.
-          # goreleaser = prev.goreleaser.override {
-          #   buildGoModule = buildGo;
-          # };
+            src = pkgs.fetchFromGitHub {
+              owner = "golangci";
+              repo = "golangci-lint";
+              rev = "v${version}";
+              hash = "sha256-8LEtm1v0slKwdLBtS41OilKJLXytSxcI9fUlZbj5Gfw=";
+            };
+
+            vendorHash = "sha256-w8JfF6n1ylrU652HEv/cYdsOdDZz9J2uRQDqxObyhkY=";
+
+            subPackages = [ "cmd/golangci-lint" ];
+
+            nativeBuildInputs = [ pkgs.installShellFiles ];
+
+            ldflags = [
+              "-s"
+              "-w"
+              "-X main.version=${version}"
+              "-X main.commit=v${version}"
+              "-X main.date=1970-01-01T00:00:00Z"
+            ];
+
+            postInstall = ''
+              for shell in bash zsh fish; do
+                HOME=$TMPDIR $out/bin/golangci-lint completion $shell > golangci-lint.$shell
+                installShellCompletion golangci-lint.$shell
+              done
+            '';
+
+            meta = {
+              description = "Fast linters runner for Go";
+              homepage = "https://golangci-lint.run/";
+              changelog = "https://github.com/golangci/golangci-lint/blob/v${version}/CHANGELOG.md";
+              mainProgram = "golangci-lint";
+            };
+          };
 
           gotestsum = prev.gotestsum.override {
             buildGoModule = buildGo;
@@ -120,9 +147,9 @@
             buildGoModule = buildGo;
           };
 
-          # gopls = prev.gopls.override {
-          #   buildGoModule = buildGo;
-          # };
+          gopls = prev.gopls.override {
+            buildGoLatestModule = buildGo;
+          };
         };
     }
     // flake-utils.lib.eachDefaultSystem
@@ -132,7 +159,7 @@
           overlays = [ self.overlays.default ];
           inherit system;
         };
-        buildDeps = with pkgs; [ git go_1_25 gnumake ];
+        buildDeps = with pkgs; [ git go_1_26 gnumake ];
         devDeps = with pkgs;
           buildDeps
           ++ [
@@ -152,6 +179,10 @@
             yq-go
             ripgrep
             postgresql
+            python314Packages.mdformat
+            python314Packages.mdformat-footnote
+            python314Packages.mdformat-frontmatter
+            python314Packages.mdformat-mkdocs
             prek
 
             # 'dot' is needed for pprof graphs

gen/go/headscale/v1/auth.pb.go

@@ -0,0 +1,351 @@
+// Code generated by protoc-gen-go. DO NOT EDIT.
+// versions:
+// 	protoc-gen-go v1.36.11
+// 	protoc        (unknown)
+// source: headscale/v1/auth.proto
+
+package v1
+
+import (
+	protoreflect "google.golang.org/protobuf/reflect/protoreflect"
+	protoimpl "google.golang.org/protobuf/runtime/protoimpl"
+	reflect "reflect"
+	sync "sync"
+	unsafe "unsafe"
+)
+
+const (
+	// Verify that this generated code is sufficiently up-to-date.
+	_ = protoimpl.EnforceVersion(20 - protoimpl.MinVersion)
+	// Verify that runtime/protoimpl is sufficiently up-to-date.
+	_ = protoimpl.EnforceVersion(protoimpl.MaxVersion - 20)
+)
+
+type AuthRegisterRequest struct {
+	state         protoimpl.MessageState `protogen:"open.v1"`
+	User          string                 `protobuf:"bytes,1,opt,name=user,proto3" json:"user,omitempty"`
+	AuthId        string                 `protobuf:"bytes,2,opt,name=auth_id,json=authId,proto3" json:"auth_id,omitempty"`
+	unknownFields protoimpl.UnknownFields
+	sizeCache     protoimpl.SizeCache
+}
+
+func (x *AuthRegisterRequest) Reset() {
+	*x = AuthRegisterRequest{}
+	mi := &file_headscale_v1_auth_proto_msgTypes[0]
+	ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
+	ms.StoreMessageInfo(mi)
+}
+
+func (x *AuthRegisterRequest) String() string {
+	return protoimpl.X.MessageStringOf(x)
+}
+
+func (*AuthRegisterRequest) ProtoMessage() {}
+
+func (x *AuthRegisterRequest) ProtoReflect() protoreflect.Message {
+	mi := &file_headscale_v1_auth_proto_msgTypes[0]
+	if x != nil {
+		ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
+		if ms.LoadMessageInfo() == nil {
+			ms.StoreMessageInfo(mi)
+		}
+		return ms
+	}
+	return mi.MessageOf(x)
+}
+
+// Deprecated: Use AuthRegisterRequest.ProtoReflect.Descriptor instead.
+func (*AuthRegisterRequest) Descriptor() ([]byte, []int) {
+	return file_headscale_v1_auth_proto_rawDescGZIP(), []int{0}
+}
+
+func (x *AuthRegisterRequest) GetUser() string {
+	if x != nil {
+		return x.User
+	}
+	return ""
+}
+
+func (x *AuthRegisterRequest) GetAuthId() string {
+	if x != nil {
+		return x.AuthId
+	}
+	return ""
+}
+
+type AuthRegisterResponse struct {
+	state         protoimpl.MessageState `protogen:"open.v1"`
+	Node          *Node                  `protobuf:"bytes,1,opt,name=node,proto3" json:"node,omitempty"`
+	unknownFields protoimpl.UnknownFields
+	sizeCache     protoimpl.SizeCache
+}
+
+func (x *AuthRegisterResponse) Reset() {
+	*x = AuthRegisterResponse{}
+	mi := &file_headscale_v1_auth_proto_msgTypes[1]
+	ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
+	ms.StoreMessageInfo(mi)
+}
+
+func (x *AuthRegisterResponse) String() string {
+	return protoimpl.X.MessageStringOf(x)
+}
+
+func (*AuthRegisterResponse) ProtoMessage() {}
+
+func (x *AuthRegisterResponse) ProtoReflect() protoreflect.Message {
+	mi := &file_headscale_v1_auth_proto_msgTypes[1]
+	if x != nil {
+		ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
+		if ms.LoadMessageInfo() == nil {
+			ms.StoreMessageInfo(mi)
+		}
+		return ms
+	}
+	return mi.MessageOf(x)
+}
+
+// Deprecated: Use AuthRegisterResponse.ProtoReflect.Descriptor instead.
+func (*AuthRegisterResponse) Descriptor() ([]byte, []int) {
+	return file_headscale_v1_auth_proto_rawDescGZIP(), []int{1}
+}
+
+func (x *AuthRegisterResponse) GetNode() *Node {
+	if x != nil {
+		return x.Node
+	}
+	return nil
+}
+
+type AuthApproveRequest struct {
+	state         protoimpl.MessageState `protogen:"open.v1"`
+	AuthId        string                 `protobuf:"bytes,1,opt,name=auth_id,json=authId,proto3" json:"auth_id,omitempty"`
+	unknownFields protoimpl.UnknownFields
+	sizeCache     protoimpl.SizeCache
+}
+
+func (x *AuthApproveRequest) Reset() {
+	*x = AuthApproveRequest{}
+	mi := &file_headscale_v1_auth_proto_msgTypes[2]
+	ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
+	ms.StoreMessageInfo(mi)
+}
+
+func (x *AuthApproveRequest) String() string {
+	return protoimpl.X.MessageStringOf(x)
+}
+
+func (*AuthApproveRequest) ProtoMessage() {}
+
+func (x *AuthApproveRequest) ProtoReflect() protoreflect.Message {
+	mi := &file_headscale_v1_auth_proto_msgTypes[2]
+	if x != nil {
+		ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
+		if ms.LoadMessageInfo() == nil {
+			ms.StoreMessageInfo(mi)
+		}
+		return ms
+	}
+	return mi.MessageOf(x)
+}
+
+// Deprecated: Use AuthApproveRequest.ProtoReflect.Descriptor instead.
+func (*AuthApproveRequest) Descriptor() ([]byte, []int) {
+	return file_headscale_v1_auth_proto_rawDescGZIP(), []int{2}
+}
+
+func (x *AuthApproveRequest) GetAuthId() string {
+	if x != nil {
+		return x.AuthId
+	}
+	return ""
+}
+
+type AuthApproveResponse struct {
+	state         protoimpl.MessageState `protogen:"open.v1"`
+	unknownFields protoimpl.UnknownFields
+	sizeCache     protoimpl.SizeCache
+}
+
+func (x *AuthApproveResponse) Reset() {
+	*x = AuthApproveResponse{}
+	mi := &file_headscale_v1_auth_proto_msgTypes[3]
+	ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
+	ms.StoreMessageInfo(mi)
+}
+
+func (x *AuthApproveResponse) String() string {
+	return protoimpl.X.MessageStringOf(x)
+}
+
+func (*AuthApproveResponse) ProtoMessage() {}
+
+func (x *AuthApproveResponse) ProtoReflect() protoreflect.Message {
+	mi := &file_headscale_v1_auth_proto_msgTypes[3]
+	if x != nil {
+		ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
+		if ms.LoadMessageInfo() == nil {
+			ms.StoreMessageInfo(mi)
+		}
+		return ms
+	}
+	return mi.MessageOf(x)
+}
+
+// Deprecated: Use AuthApproveResponse.ProtoReflect.Descriptor instead.
+func (*AuthApproveResponse) Descriptor() ([]byte, []int) {
+	return file_headscale_v1_auth_proto_rawDescGZIP(), []int{3}
+}
+
+type AuthRejectRequest struct {
+	state         protoimpl.MessageState `protogen:"open.v1"`
+	AuthId        string                 `protobuf:"bytes,1,opt,name=auth_id,json=authId,proto3" json:"auth_id,omitempty"`
+	unknownFields protoimpl.UnknownFields
+	sizeCache     protoimpl.SizeCache
+}
+
+func (x *AuthRejectRequest) Reset() {
+	*x = AuthRejectRequest{}
+	mi := &file_headscale_v1_auth_proto_msgTypes[4]
+	ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
+	ms.StoreMessageInfo(mi)
+}
+
+func (x *AuthRejectRequest) String() string {
+	return protoimpl.X.MessageStringOf(x)
+}
+
+func (*AuthRejectRequest) ProtoMessage() {}
+
+func (x *AuthRejectRequest) ProtoReflect() protoreflect.Message {
+	mi := &file_headscale_v1_auth_proto_msgTypes[4]
+	if x != nil {
+		ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
+		if ms.LoadMessageInfo() == nil {
+			ms.StoreMessageInfo(mi)
+		}
+		return ms
+	}
+	return mi.MessageOf(x)
+}
+
+// Deprecated: Use AuthRejectRequest.ProtoReflect.Descriptor instead.
+func (*AuthRejectRequest) Descriptor() ([]byte, []int) {
+	return file_headscale_v1_auth_proto_rawDescGZIP(), []int{4}
+}
+
+func (x *AuthRejectRequest) GetAuthId() string {
+	if x != nil {
+		return x.AuthId
+	}
+	return ""
+}
+
+type AuthRejectResponse struct {
+	state         protoimpl.MessageState `protogen:"open.v1"`
+	unknownFields protoimpl.UnknownFields
+	sizeCache     protoimpl.SizeCache
+}
+
+func (x *AuthRejectResponse) Reset() {
+	*x = AuthRejectResponse{}
+	mi := &file_headscale_v1_auth_proto_msgTypes[5]
+	ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
+	ms.StoreMessageInfo(mi)
+}
+
+func (x *AuthRejectResponse) String() string {
+	return protoimpl.X.MessageStringOf(x)
+}
+
+func (*AuthRejectResponse) ProtoMessage() {}
+
+func (x *AuthRejectResponse) ProtoReflect() protoreflect.Message {
+	mi := &file_headscale_v1_auth_proto_msgTypes[5]
+	if x != nil {
+		ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
+		if ms.LoadMessageInfo() == nil {
+			ms.StoreMessageInfo(mi)
+		}
+		return ms
+	}
+	return mi.MessageOf(x)
+}
+
+// Deprecated: Use AuthRejectResponse.ProtoReflect.Descriptor instead.
+func (*AuthRejectResponse) Descriptor() ([]byte, []int) {
+	return file_headscale_v1_auth_proto_rawDescGZIP(), []int{5}
+}
+
+var File_headscale_v1_auth_proto protoreflect.FileDescriptor
+
+const file_headscale_v1_auth_proto_rawDesc = "" +
+	"\n" +
+	"\x17headscale/v1/auth.proto\x12\fheadscale.v1\x1a\x17headscale/v1/node.proto\"B\n" +
+	"\x13AuthRegisterRequest\x12\x12\n" +
+	"\x04user\x18\x01 \x01(\tR\x04user\x12\x17\n" +
+	"\aauth_id\x18\x02 \x01(\tR\x06authId\">\n" +
+	"\x14AuthRegisterResponse\x12&\n" +
+	"\x04node\x18\x01 \x01(\v2\x12.headscale.v1.NodeR\x04node\"-\n" +
+	"\x12AuthApproveRequest\x12\x17\n" +
+	"\aauth_id\x18\x01 \x01(\tR\x06authId\"\x15\n" +
+	"\x13AuthApproveResponse\",\n" +
+	"\x11AuthRejectRequest\x12\x17\n" +
+	"\aauth_id\x18\x01 \x01(\tR\x06authId\"\x14\n" +
+	"\x12AuthRejectResponseB)Z'github.com/juanfont/headscale/gen/go/v1b\x06proto3"
+
+var (
+	file_headscale_v1_auth_proto_rawDescOnce sync.Once
+	file_headscale_v1_auth_proto_rawDescData []byte
+)
+
+func file_headscale_v1_auth_proto_rawDescGZIP() []byte {
+	file_headscale_v1_auth_proto_rawDescOnce.Do(func() {
+		file_headscale_v1_auth_proto_rawDescData = protoimpl.X.CompressGZIP(unsafe.Slice(unsafe.StringData(file_headscale_v1_auth_proto_rawDesc), len(file_headscale_v1_auth_proto_rawDesc)))
+	})
+	return file_headscale_v1_auth_proto_rawDescData
+}
+
+var file_headscale_v1_auth_proto_msgTypes = make([]protoimpl.MessageInfo, 6)
+var file_headscale_v1_auth_proto_goTypes = []any{
+	(*AuthRegisterRequest)(nil),  // 0: headscale.v1.AuthRegisterRequest
+	(*AuthRegisterResponse)(nil), // 1: headscale.v1.AuthRegisterResponse
+	(*AuthApproveRequest)(nil),   // 2: headscale.v1.AuthApproveRequest
+	(*AuthApproveResponse)(nil),  // 3: headscale.v1.AuthApproveResponse
+	(*AuthRejectRequest)(nil),    // 4: headscale.v1.AuthRejectRequest
+	(*AuthRejectResponse)(nil),   // 5: headscale.v1.AuthRejectResponse
+	(*Node)(nil),                 // 6: headscale.v1.Node
+}
+var file_headscale_v1_auth_proto_depIdxs = []int32{
+	6, // 0: headscale.v1.AuthRegisterResponse.node:type_name -> headscale.v1.Node
+	1, // [1:1] is the sub-list for method output_type
+	1, // [1:1] is the sub-list for method input_type
+	1, // [1:1] is the sub-list for extension type_name
+	1, // [1:1] is the sub-list for extension extendee
+	0, // [0:1] is the sub-list for field type_name
+}
+
+func init() { file_headscale_v1_auth_proto_init() }
+func file_headscale_v1_auth_proto_init() {
+	if File_headscale_v1_auth_proto != nil {
+		return
+	}
+	file_headscale_v1_node_proto_init()
+	type x struct{}
+	out := protoimpl.TypeBuilder{
+		File: protoimpl.DescBuilder{
+			GoPackagePath: reflect.TypeOf(x{}).PkgPath(),
+			RawDescriptor: unsafe.Slice(unsafe.StringData(file_headscale_v1_auth_proto_rawDesc), len(file_headscale_v1_auth_proto_rawDesc)),
+			NumEnums:      0,
+			NumMessages:   6,
+			NumExtensions: 0,
+			NumServices:   0,
+		},
+		GoTypes:           file_headscale_v1_auth_proto_goTypes,
+		DependencyIndexes: file_headscale_v1_auth_proto_depIdxs,
+		MessageInfos:      file_headscale_v1_auth_proto_msgTypes,
+	}.Build()
+	File_headscale_v1_auth_proto = out.File
+	file_headscale_v1_auth_proto_goTypes = nil
+	file_headscale_v1_auth_proto_depIdxs = nil
+}

gen/go/headscale/v1/headscale.pb.go

@@ -106,10 +106,10 @@ var File_headscale_v1_headscale_proto protoreflect.FileDescriptor
 
 const file_headscale_v1_headscale_proto_rawDesc = "" +
 	"\n" +
-	"\x1cheadscale/v1/headscale.proto\x12\fheadscale.v1\x1a\x1cgoogle/api/annotations.proto\x1a\x17headscale/v1/user.proto\x1a\x1dheadscale/v1/preauthkey.proto\x1a\x17headscale/v1/node.proto\x1a\x19headscale/v1/apikey.proto\x1a\x19headscale/v1/policy.proto\"\x0f\n" +
+	"\x1cheadscale/v1/headscale.proto\x12\fheadscale.v1\x1a\x1cgoogle/api/annotations.proto\x1a\x17headscale/v1/user.proto\x1a\x1dheadscale/v1/preauthkey.proto\x1a\x17headscale/v1/node.proto\x1a\x19headscale/v1/apikey.proto\x1a\x17headscale/v1/auth.proto\x1a\x19headscale/v1/policy.proto\"\x0f\n" +
 	"\rHealthRequest\"E\n" +
 	"\x0eHealthResponse\x123\n" +
-	"\x15database_connectivity\x18\x01 \x01(\bR\x14databaseConnectivity2\x8c\x17\n" +
+	"\x15database_connectivity\x18\x01 \x01(\bR\x14databaseConnectivity2\xeb\x19\n" +
 	"\x10HeadscaleService\x12h\n" +
 	"\n" +
 	"CreateUser\x12\x1f.headscale.v1.CreateUserRequest\x1a .headscale.v1.CreateUserResponse\"\x17\x82\xd3\xe4\x93\x02\x11:\x01*\"\f/api/v1/user\x12\x80\x01\n" +
@@ -134,7 +134,11 @@ const file_headscale_v1_headscale_proto_rawDesc = "" +
 	"\n" +
 	"RenameNode\x12\x1f.headscale.v1.RenameNodeRequest\x1a .headscale.v1.RenameNodeResponse\"0\x82\xd3\xe4\x93\x02*\"(/api/v1/node/{node_id}/rename/{new_name}\x12b\n" +
 	"\tListNodes\x12\x1e.headscale.v1.ListNodesRequest\x1a\x1f.headscale.v1.ListNodesResponse\"\x14\x82\xd3\xe4\x93\x02\x0e\x12\f/api/v1/node\x12\x80\x01\n" +
-	"\x0fBackfillNodeIPs\x12$.headscale.v1.BackfillNodeIPsRequest\x1a%.headscale.v1.BackfillNodeIPsResponse\" \x82\xd3\xe4\x93\x02\x1a\"\x18/api/v1/node/backfillips\x12p\n" +
+	"\x0fBackfillNodeIPs\x12$.headscale.v1.BackfillNodeIPsRequest\x1a%.headscale.v1.BackfillNodeIPsResponse\" \x82\xd3\xe4\x93\x02\x1a\"\x18/api/v1/node/backfillips\x12w\n" +
+	"\fAuthRegister\x12!.headscale.v1.AuthRegisterRequest\x1a\".headscale.v1.AuthRegisterResponse\" \x82\xd3\xe4\x93\x02\x1a:\x01*\"\x15/api/v1/auth/register\x12s\n" +
+	"\vAuthApprove\x12 .headscale.v1.AuthApproveRequest\x1a!.headscale.v1.AuthApproveResponse\"\x1f\x82\xd3\xe4\x93\x02\x19:\x01*\"\x14/api/v1/auth/approve\x12o\n" +
+	"\n" +
+	"AuthReject\x12\x1f.headscale.v1.AuthRejectRequest\x1a .headscale.v1.AuthRejectResponse\"\x1e\x82\xd3\xe4\x93\x02\x18:\x01*\"\x13/api/v1/auth/reject\x12p\n" +
 	"\fCreateApiKey\x12!.headscale.v1.CreateApiKeyRequest\x1a\".headscale.v1.CreateApiKeyResponse\"\x19\x82\xd3\xe4\x93\x02\x13:\x01*\"\x0e/api/v1/apikey\x12w\n" +
 	"\fExpireApiKey\x12!.headscale.v1.ExpireApiKeyRequest\x1a\".headscale.v1.ExpireApiKeyResponse\" \x82\xd3\xe4\x93\x02\x1a:\x01*\"\x15/api/v1/apikey/expire\x12j\n" +
 	"\vListApiKeys\x12 .headscale.v1.ListApiKeysRequest\x1a!.headscale.v1.ListApiKeysResponse\"\x16\x82\xd3\xe4\x93\x02\x10\x12\x0e/api/v1/apikey\x12v\n" +
@@ -177,36 +181,42 @@ var file_headscale_v1_headscale_proto_goTypes = []any{
 	(*RenameNodeRequest)(nil),         // 17: headscale.v1.RenameNodeRequest
 	(*ListNodesRequest)(nil),          // 18: headscale.v1.ListNodesRequest
 	(*BackfillNodeIPsRequest)(nil),    // 19: headscale.v1.BackfillNodeIPsRequest
-	(*CreateApiKeyRequest)(nil),       // 20: headscale.v1.CreateApiKeyRequest
-	(*ExpireApiKeyRequest)(nil),       // 21: headscale.v1.ExpireApiKeyRequest
-	(*ListApiKeysRequest)(nil),        // 22: headscale.v1.ListApiKeysRequest
-	(*DeleteApiKeyRequest)(nil),       // 23: headscale.v1.DeleteApiKeyRequest
-	(*GetPolicyRequest)(nil),          // 24: headscale.v1.GetPolicyRequest
-	(*SetPolicyRequest)(nil),          // 25: headscale.v1.SetPolicyRequest
-	(*CreateUserResponse)(nil),        // 26: headscale.v1.CreateUserResponse
-	(*RenameUserResponse)(nil),        // 27: headscale.v1.RenameUserResponse
-	(*DeleteUserResponse)(nil),        // 28: headscale.v1.DeleteUserResponse
-	(*ListUsersResponse)(nil),         // 29: headscale.v1.ListUsersResponse
-	(*CreatePreAuthKeyResponse)(nil),  // 30: headscale.v1.CreatePreAuthKeyResponse
-	(*ExpirePreAuthKeyResponse)(nil),  // 31: headscale.v1.ExpirePreAuthKeyResponse
-	(*DeletePreAuthKeyResponse)(nil),  // 32: headscale.v1.DeletePreAuthKeyResponse
-	(*ListPreAuthKeysResponse)(nil),   // 33: headscale.v1.ListPreAuthKeysResponse
-	(*DebugCreateNodeResponse)(nil),   // 34: headscale.v1.DebugCreateNodeResponse
-	(*GetNodeResponse)(nil),           // 35: headscale.v1.GetNodeResponse
-	(*SetTagsResponse)(nil),           // 36: headscale.v1.SetTagsResponse
-	(*SetApprovedRoutesResponse)(nil), // 37: headscale.v1.SetApprovedRoutesResponse
-	(*RegisterNodeResponse)(nil),      // 38: headscale.v1.RegisterNodeResponse
-	(*DeleteNodeResponse)(nil),        // 39: headscale.v1.DeleteNodeResponse
-	(*ExpireNodeResponse)(nil),        // 40: headscale.v1.ExpireNodeResponse
-	(*RenameNodeResponse)(nil),        // 41: headscale.v1.RenameNodeResponse
-	(*ListNodesResponse)(nil),         // 42: headscale.v1.ListNodesResponse
-	(*BackfillNodeIPsResponse)(nil),   // 43: headscale.v1.BackfillNodeIPsResponse
-	(*CreateApiKeyResponse)(nil),      // 44: headscale.v1.CreateApiKeyResponse
-	(*ExpireApiKeyResponse)(nil),      // 45: headscale.v1.ExpireApiKeyResponse
-	(*ListApiKeysResponse)(nil),       // 46: headscale.v1.ListApiKeysResponse
-	(*DeleteApiKeyResponse)(nil),      // 47: headscale.v1.DeleteApiKeyResponse
-	(*GetPolicyResponse)(nil),         // 48: headscale.v1.GetPolicyResponse
-	(*SetPolicyResponse)(nil),         // 49: headscale.v1.SetPolicyResponse
+	(*AuthRegisterRequest)(nil),       // 20: headscale.v1.AuthRegisterRequest
+	(*AuthApproveRequest)(nil),        // 21: headscale.v1.AuthApproveRequest
+	(*AuthRejectRequest)(nil),         // 22: headscale.v1.AuthRejectRequest
+	(*CreateApiKeyRequest)(nil),       // 23: headscale.v1.CreateApiKeyRequest
+	(*ExpireApiKeyRequest)(nil),       // 24: headscale.v1.ExpireApiKeyRequest
+	(*ListApiKeysRequest)(nil),        // 25: headscale.v1.ListApiKeysRequest
+	(*DeleteApiKeyRequest)(nil),       // 26: headscale.v1.DeleteApiKeyRequest
+	(*GetPolicyRequest)(nil),          // 27: headscale.v1.GetPolicyRequest
+	(*SetPolicyRequest)(nil),          // 28: headscale.v1.SetPolicyRequest
+	(*CreateUserResponse)(nil),        // 29: headscale.v1.CreateUserResponse
+	(*RenameUserResponse)(nil),        // 30: headscale.v1.RenameUserResponse
+	(*DeleteUserResponse)(nil),        // 31: headscale.v1.DeleteUserResponse
+	(*ListUsersResponse)(nil),         // 32: headscale.v1.ListUsersResponse
+	(*CreatePreAuthKeyResponse)(nil),  // 33: headscale.v1.CreatePreAuthKeyResponse
+	(*ExpirePreAuthKeyResponse)(nil),  // 34: headscale.v1.ExpirePreAuthKeyResponse
+	(*DeletePreAuthKeyResponse)(nil),  // 35: headscale.v1.DeletePreAuthKeyResponse
+	(*ListPreAuthKeysResponse)(nil),   // 36: headscale.v1.ListPreAuthKeysResponse
+	(*DebugCreateNodeResponse)(nil),   // 37: headscale.v1.DebugCreateNodeResponse
+	(*GetNodeResponse)(nil),           // 38: headscale.v1.GetNodeResponse
+	(*SetTagsResponse)(nil),           // 39: headscale.v1.SetTagsResponse
+	(*SetApprovedRoutesResponse)(nil), // 40: headscale.v1.SetApprovedRoutesResponse
+	(*RegisterNodeResponse)(nil),      // 41: headscale.v1.RegisterNodeResponse
+	(*DeleteNodeResponse)(nil),        // 42: headscale.v1.DeleteNodeResponse
+	(*ExpireNodeResponse)(nil),        // 43: headscale.v1.ExpireNodeResponse
+	(*RenameNodeResponse)(nil),        // 44: headscale.v1.RenameNodeResponse
+	(*ListNodesResponse)(nil),         // 45: headscale.v1.ListNodesResponse
+	(*BackfillNodeIPsResponse)(nil),   // 46: headscale.v1.BackfillNodeIPsResponse
+	(*AuthRegisterResponse)(nil),      // 47: headscale.v1.AuthRegisterResponse
+	(*AuthApproveResponse)(nil),       // 48: headscale.v1.AuthApproveResponse
+	(*AuthRejectResponse)(nil),        // 49: headscale.v1.AuthRejectResponse
+	(*CreateApiKeyResponse)(nil),      // 50: headscale.v1.CreateApiKeyResponse
+	(*ExpireApiKeyResponse)(nil),      // 51: headscale.v1.ExpireApiKeyResponse
+	(*ListApiKeysResponse)(nil),       // 52: headscale.v1.ListApiKeysResponse
+	(*DeleteApiKeyResponse)(nil),      // 53: headscale.v1.DeleteApiKeyResponse
+	(*GetPolicyResponse)(nil),         // 54: headscale.v1.GetPolicyResponse
+	(*SetPolicyResponse)(nil),         // 55: headscale.v1.SetPolicyResponse
 }
 var file_headscale_v1_headscale_proto_depIdxs = []int32{
 	2,  // 0: headscale.v1.HeadscaleService.CreateUser:input_type -> headscale.v1.CreateUserRequest
@@ -227,40 +237,46 @@ var file_headscale_v1_headscale_proto_depIdxs = []int32{
 	17, // 15: headscale.v1.HeadscaleService.RenameNode:input_type -> headscale.v1.RenameNodeRequest
 	18, // 16: headscale.v1.HeadscaleService.ListNodes:input_type -> headscale.v1.ListNodesRequest
 	19, // 17: headscale.v1.HeadscaleService.BackfillNodeIPs:input_type -> headscale.v1.BackfillNodeIPsRequest
-	20, // 18: headscale.v1.HeadscaleService.CreateApiKey:input_type -> headscale.v1.CreateApiKeyRequest
-	21, // 19: headscale.v1.HeadscaleService.ExpireApiKey:input_type -> headscale.v1.ExpireApiKeyRequest
-	22, // 20: headscale.v1.HeadscaleService.ListApiKeys:input_type -> headscale.v1.ListApiKeysRequest
-	23, // 21: headscale.v1.HeadscaleService.DeleteApiKey:input_type -> headscale.v1.DeleteApiKeyRequest
-	24, // 22: headscale.v1.HeadscaleService.GetPolicy:input_type -> headscale.v1.GetPolicyRequest
-	25, // 23: headscale.v1.HeadscaleService.SetPolicy:input_type -> headscale.v1.SetPolicyRequest
-	0,  // 24: headscale.v1.HeadscaleService.Health:input_type -> headscale.v1.HealthRequest
-	26, // 25: headscale.v1.HeadscaleService.CreateUser:output_type -> headscale.v1.CreateUserResponse
-	27, // 26: headscale.v1.HeadscaleService.RenameUser:output_type -> headscale.v1.RenameUserResponse
-	28, // 27: headscale.v1.HeadscaleService.DeleteUser:output_type -> headscale.v1.DeleteUserResponse
-	29, // 28: headscale.v1.HeadscaleService.ListUsers:output_type -> headscale.v1.ListUsersResponse
-	30, // 29: headscale.v1.HeadscaleService.CreatePreAuthKey:output_type -> headscale.v1.CreatePreAuthKeyResponse
-	31, // 30: headscale.v1.HeadscaleService.ExpirePreAuthKey:output_type -> headscale.v1.ExpirePreAuthKeyResponse
-	32, // 31: headscale.v1.HeadscaleService.DeletePreAuthKey:output_type -> headscale.v1.DeletePreAuthKeyResponse
-	33, // 32: headscale.v1.HeadscaleService.ListPreAuthKeys:output_type -> headscale.v1.ListPreAuthKeysResponse
-	34, // 33: headscale.v1.HeadscaleService.DebugCreateNode:output_type -> headscale.v1.DebugCreateNodeResponse
-	35, // 34: headscale.v1.HeadscaleService.GetNode:output_type -> headscale.v1.GetNodeResponse
-	36, // 35: headscale.v1.HeadscaleService.SetTags:output_type -> headscale.v1.SetTagsResponse
-	37, // 36: headscale.v1.HeadscaleService.SetApprovedRoutes:output_type -> headscale.v1.SetApprovedRoutesResponse
-	38, // 37: headscale.v1.HeadscaleService.RegisterNode:output_type -> headscale.v1.RegisterNodeResponse
-	39, // 38: headscale.v1.HeadscaleService.DeleteNode:output_type -> headscale.v1.DeleteNodeResponse
-	40, // 39: headscale.v1.HeadscaleService.ExpireNode:output_type -> headscale.v1.ExpireNodeResponse
-	41, // 40: headscale.v1.HeadscaleService.RenameNode:output_type -> headscale.v1.RenameNodeResponse
-	42, // 41: headscale.v1.HeadscaleService.ListNodes:output_type -> headscale.v1.ListNodesResponse
-	43, // 42: headscale.v1.HeadscaleService.BackfillNodeIPs:output_type -> headscale.v1.BackfillNodeIPsResponse
-	44, // 43: headscale.v1.HeadscaleService.CreateApiKey:output_type -> headscale.v1.CreateApiKeyResponse
-	45, // 44: headscale.v1.HeadscaleService.ExpireApiKey:output_type -> headscale.v1.ExpireApiKeyResponse
-	46, // 45: headscale.v1.HeadscaleService.ListApiKeys:output_type -> headscale.v1.ListApiKeysResponse
-	47, // 46: headscale.v1.HeadscaleService.DeleteApiKey:output_type -> headscale.v1.DeleteApiKeyResponse
-	48, // 47: headscale.v1.HeadscaleService.GetPolicy:output_type -> headscale.v1.GetPolicyResponse
-	49, // 48: headscale.v1.HeadscaleService.SetPolicy:output_type -> headscale.v1.SetPolicyResponse
-	1,  // 49: headscale.v1.HeadscaleService.Health:output_type -> headscale.v1.HealthResponse
-	25, // [25:50] is the sub-list for method output_type
-	0,  // [0:25] is the sub-list for method input_type
+	20, // 18: headscale.v1.HeadscaleService.AuthRegister:input_type -> headscale.v1.AuthRegisterRequest
+	21, // 19: headscale.v1.HeadscaleService.AuthApprove:input_type -> headscale.v1.AuthApproveRequest
+	22, // 20: headscale.v1.HeadscaleService.AuthReject:input_type -> headscale.v1.AuthRejectRequest
+	23, // 21: headscale.v1.HeadscaleService.CreateApiKey:input_type -> headscale.v1.CreateApiKeyRequest
+	24, // 22: headscale.v1.HeadscaleService.ExpireApiKey:input_type -> headscale.v1.ExpireApiKeyRequest
+	25, // 23: headscale.v1.HeadscaleService.ListApiKeys:input_type -> headscale.v1.ListApiKeysRequest
+	26, // 24: headscale.v1.HeadscaleService.DeleteApiKey:input_type -> headscale.v1.DeleteApiKeyRequest
+	27, // 25: headscale.v1.HeadscaleService.GetPolicy:input_type -> headscale.v1.GetPolicyRequest
+	28, // 26: headscale.v1.HeadscaleService.SetPolicy:input_type -> headscale.v1.SetPolicyRequest
+	0,  // 27: headscale.v1.HeadscaleService.Health:input_type -> headscale.v1.HealthRequest
+	29, // 28: headscale.v1.HeadscaleService.CreateUser:output_type -> headscale.v1.CreateUserResponse
+	30, // 29: headscale.v1.HeadscaleService.RenameUser:output_type -> headscale.v1.RenameUserResponse
+	31, // 30: headscale.v1.HeadscaleService.DeleteUser:output_type -> headscale.v1.DeleteUserResponse
+	32, // 31: headscale.v1.HeadscaleService.ListUsers:output_type -> headscale.v1.ListUsersResponse
+	33, // 32: headscale.v1.HeadscaleService.CreatePreAuthKey:output_type -> headscale.v1.CreatePreAuthKeyResponse
+	34, // 33: headscale.v1.HeadscaleService.ExpirePreAuthKey:output_type -> headscale.v1.ExpirePreAuthKeyResponse
+	35, // 34: headscale.v1.HeadscaleService.DeletePreAuthKey:output_type -> headscale.v1.DeletePreAuthKeyResponse
+	36, // 35: headscale.v1.HeadscaleService.ListPreAuthKeys:output_type -> headscale.v1.ListPreAuthKeysResponse
+	37, // 36: headscale.v1.HeadscaleService.DebugCreateNode:output_type -> headscale.v1.DebugCreateNodeResponse
+	38, // 37: headscale.v1.HeadscaleService.GetNode:output_type -> headscale.v1.GetNodeResponse
+	39, // 38: headscale.v1.HeadscaleService.SetTags:output_type -> headscale.v1.SetTagsResponse
+	40, // 39: headscale.v1.HeadscaleService.SetApprovedRoutes:output_type -> headscale.v1.SetApprovedRoutesResponse
+	41, // 40: headscale.v1.HeadscaleService.RegisterNode:output_type -> headscale.v1.RegisterNodeResponse
+	42, // 41: headscale.v1.HeadscaleService.DeleteNode:output_type -> headscale.v1.DeleteNodeResponse
+	43, // 42: headscale.v1.HeadscaleService.ExpireNode:output_type -> headscale.v1.ExpireNodeResponse
+	44, // 43: headscale.v1.HeadscaleService.RenameNode:output_type -> headscale.v1.RenameNodeResponse
+	45, // 44: headscale.v1.HeadscaleService.ListNodes:output_type -> headscale.v1.ListNodesResponse
+	46, // 45: headscale.v1.HeadscaleService.BackfillNodeIPs:output_type -> headscale.v1.BackfillNodeIPsResponse
+	47, // 46: headscale.v1.HeadscaleService.AuthRegister:output_type -> headscale.v1.AuthRegisterResponse
+	48, // 47: headscale.v1.HeadscaleService.AuthApprove:output_type -> headscale.v1.AuthApproveResponse
+	49, // 48: headscale.v1.HeadscaleService.AuthReject:output_type -> headscale.v1.AuthRejectResponse
+	50, // 49: headscale.v1.HeadscaleService.CreateApiKey:output_type -> headscale.v1.CreateApiKeyResponse
+	51, // 50: headscale.v1.HeadscaleService.ExpireApiKey:output_type -> headscale.v1.ExpireApiKeyResponse
+	52, // 51: headscale.v1.HeadscaleService.ListApiKeys:output_type -> headscale.v1.ListApiKeysResponse
+	53, // 52: headscale.v1.HeadscaleService.DeleteApiKey:output_type -> headscale.v1.DeleteApiKeyResponse
+	54, // 53: headscale.v1.HeadscaleService.GetPolicy:output_type -> headscale.v1.GetPolicyResponse
+	55, // 54: headscale.v1.HeadscaleService.SetPolicy:output_type -> headscale.v1.SetPolicyResponse
+	1,  // 55: headscale.v1.HeadscaleService.Health:output_type -> headscale.v1.HealthResponse
+	28, // [28:56] is the sub-list for method output_type
+	0,  // [0:28] is the sub-list for method input_type
 	0,  // [0:0] is the sub-list for extension type_name
 	0,  // [0:0] is the sub-list for extension extendee
 	0,  // [0:0] is the sub-list for field type_name
@@ -275,6 +291,7 @@ func file_headscale_v1_headscale_proto_init() {
 	file_headscale_v1_preauthkey_proto_init()
 	file_headscale_v1_node_proto_init()
 	file_headscale_v1_apikey_proto_init()
+	file_headscale_v1_auth_proto_init()
 	file_headscale_v1_policy_proto_init()
 	type x struct{}
 	out := protoimpl.TypeBuilder{

gen/go/headscale/v1/headscale.pb.gw.go

@@ -709,6 +709,87 @@ func local_request_HeadscaleService_BackfillNodeIPs_0(ctx context.Context, marsh
 	return msg, metadata, err
 }
 
+func request_HeadscaleService_AuthRegister_0(ctx context.Context, marshaler runtime.Marshaler, client HeadscaleServiceClient, req *http.Request, pathParams map[string]string) (proto.Message, runtime.ServerMetadata, error) {
+	var (
+		protoReq AuthRegisterRequest
+		metadata runtime.ServerMetadata
+	)
+	if err := marshaler.NewDecoder(req.Body).Decode(&protoReq); err != nil && !errors.Is(err, io.EOF) {
+		return nil, metadata, status.Errorf(codes.InvalidArgument, "%v", err)
+	}
+	if req.Body != nil {
+		_, _ = io.Copy(io.Discard, req.Body)
+	}
+	msg, err := client.AuthRegister(ctx, &protoReq, grpc.Header(&metadata.HeaderMD), grpc.Trailer(&metadata.TrailerMD))
+	return msg, metadata, err
+}
+
+func local_request_HeadscaleService_AuthRegister_0(ctx context.Context, marshaler runtime.Marshaler, server HeadscaleServiceServer, req *http.Request, pathParams map[string]string) (proto.Message, runtime.ServerMetadata, error) {
+	var (
+		protoReq AuthRegisterRequest
+		metadata runtime.ServerMetadata
+	)
+	if err := marshaler.NewDecoder(req.Body).Decode(&protoReq); err != nil && !errors.Is(err, io.EOF) {
+		return nil, metadata, status.Errorf(codes.InvalidArgument, "%v", err)
+	}
+	msg, err := server.AuthRegister(ctx, &protoReq)
+	return msg, metadata, err
+}
+
+func request_HeadscaleService_AuthApprove_0(ctx context.Context, marshaler runtime.Marshaler, client HeadscaleServiceClient, req *http.Request, pathParams map[string]string) (proto.Message, runtime.ServerMetadata, error) {
+	var (
+		protoReq AuthApproveRequest
+		metadata runtime.ServerMetadata
+	)
+	if err := marshaler.NewDecoder(req.Body).Decode(&protoReq); err != nil && !errors.Is(err, io.EOF) {
+		return nil, metadata, status.Errorf(codes.InvalidArgument, "%v", err)
+	}
+	if req.Body != nil {
+		_, _ = io.Copy(io.Discard, req.Body)
+	}
+	msg, err := client.AuthApprove(ctx, &protoReq, grpc.Header(&metadata.HeaderMD), grpc.Trailer(&metadata.TrailerMD))
+	return msg, metadata, err
+}
+
+func local_request_HeadscaleService_AuthApprove_0(ctx context.Context, marshaler runtime.Marshaler, server HeadscaleServiceServer, req *http.Request, pathParams map[string]string) (proto.Message, runtime.ServerMetadata, error) {
+	var (
+		protoReq AuthApproveRequest
+		metadata runtime.ServerMetadata
+	)
+	if err := marshaler.NewDecoder(req.Body).Decode(&protoReq); err != nil && !errors.Is(err, io.EOF) {
+		return nil, metadata, status.Errorf(codes.InvalidArgument, "%v", err)
+	}
+	msg, err := server.AuthApprove(ctx, &protoReq)
+	return msg, metadata, err
+}
+
+func request_HeadscaleService_AuthReject_0(ctx context.Context, marshaler runtime.Marshaler, client HeadscaleServiceClient, req *http.Request, pathParams map[string]string) (proto.Message, runtime.ServerMetadata, error) {
+	var (
+		protoReq AuthRejectRequest
+		metadata runtime.ServerMetadata
+	)
+	if err := marshaler.NewDecoder(req.Body).Decode(&protoReq); err != nil && !errors.Is(err, io.EOF) {
+		return nil, metadata, status.Errorf(codes.InvalidArgument, "%v", err)
+	}
+	if req.Body != nil {
+		_, _ = io.Copy(io.Discard, req.Body)
+	}
+	msg, err := client.AuthReject(ctx, &protoReq, grpc.Header(&metadata.HeaderMD), grpc.Trailer(&metadata.TrailerMD))
+	return msg, metadata, err
+}
+
+func local_request_HeadscaleService_AuthReject_0(ctx context.Context, marshaler runtime.Marshaler, server HeadscaleServiceServer, req *http.Request, pathParams map[string]string) (proto.Message, runtime.ServerMetadata, error) {
+	var (
+		protoReq AuthRejectRequest
+		metadata runtime.ServerMetadata
+	)
+	if err := marshaler.NewDecoder(req.Body).Decode(&protoReq); err != nil && !errors.Is(err, io.EOF) {
+		return nil, metadata, status.Errorf(codes.InvalidArgument, "%v", err)
+	}
+	msg, err := server.AuthReject(ctx, &protoReq)
+	return msg, metadata, err
+}
+
 func request_HeadscaleService_CreateApiKey_0(ctx context.Context, marshaler runtime.Marshaler, client HeadscaleServiceClient, req *http.Request, pathParams map[string]string) (proto.Message, runtime.ServerMetadata, error) {
 	var (
 		protoReq CreateApiKeyRequest
@@ -1272,6 +1353,66 @@ func RegisterHeadscaleServiceHandlerServer(ctx context.Context, mux *runtime.Ser
 		}
 		forward_HeadscaleService_BackfillNodeIPs_0(annotatedContext, mux, outboundMarshaler, w, req, resp, mux.GetForwardResponseOptions()...)
 	})
+	mux.Handle(http.MethodPost, pattern_HeadscaleService_AuthRegister_0, func(w http.ResponseWriter, req *http.Request, pathParams map[string]string) {
+		ctx, cancel := context.WithCancel(req.Context())
+		defer cancel()
+		var stream runtime.ServerTransportStream
+		ctx = grpc.NewContextWithServerTransportStream(ctx, &stream)
+		inboundMarshaler, outboundMarshaler := runtime.MarshalerForRequest(mux, req)
+		annotatedContext, err := runtime.AnnotateIncomingContext(ctx, mux, req, "/headscale.v1.HeadscaleService/AuthRegister", runtime.WithHTTPPathPattern("/api/v1/auth/register"))
+		if err != nil {
+			runtime.HTTPError(ctx, mux, outboundMarshaler, w, req, err)
+			return
+		}
+		resp, md, err := local_request_HeadscaleService_AuthRegister_0(annotatedContext, inboundMarshaler, server, req, pathParams)
+		md.HeaderMD, md.TrailerMD = metadata.Join(md.HeaderMD, stream.Header()), metadata.Join(md.TrailerMD, stream.Trailer())
+		annotatedContext = runtime.NewServerMetadataContext(annotatedContext, md)
+		if err != nil {
+			runtime.HTTPError(annotatedContext, mux, outboundMarshaler, w, req, err)
+			return
+		}
+		forward_HeadscaleService_AuthRegister_0(annotatedContext, mux, outboundMarshaler, w, req, resp, mux.GetForwardResponseOptions()...)
+	})
+	mux.Handle(http.MethodPost, pattern_HeadscaleService_AuthApprove_0, func(w http.ResponseWriter, req *http.Request, pathParams map[string]string) {
+		ctx, cancel := context.WithCancel(req.Context())
+		defer cancel()
+		var stream runtime.ServerTransportStream
+		ctx = grpc.NewContextWithServerTransportStream(ctx, &stream)
+		inboundMarshaler, outboundMarshaler := runtime.MarshalerForRequest(mux, req)
+		annotatedContext, err := runtime.AnnotateIncomingContext(ctx, mux, req, "/headscale.v1.HeadscaleService/AuthApprove", runtime.WithHTTPPathPattern("/api/v1/auth/approve"))
+		if err != nil {
+			runtime.HTTPError(ctx, mux, outboundMarshaler, w, req, err)
+			return
+		}
+		resp, md, err := local_request_HeadscaleService_AuthApprove_0(annotatedContext, inboundMarshaler, server, req, pathParams)
+		md.HeaderMD, md.TrailerMD = metadata.Join(md.HeaderMD, stream.Header()), metadata.Join(md.TrailerMD, stream.Trailer())
+		annotatedContext = runtime.NewServerMetadataContext(annotatedContext, md)
+		if err != nil {
+			runtime.HTTPError(annotatedContext, mux, outboundMarshaler, w, req, err)
+			return
+		}
+		forward_HeadscaleService_AuthApprove_0(annotatedContext, mux, outboundMarshaler, w, req, resp, mux.GetForwardResponseOptions()...)
+	})
+	mux.Handle(http.MethodPost, pattern_HeadscaleService_AuthReject_0, func(w http.ResponseWriter, req *http.Request, pathParams map[string]string) {
+		ctx, cancel := context.WithCancel(req.Context())
+		defer cancel()
+		var stream runtime.ServerTransportStream
+		ctx = grpc.NewContextWithServerTransportStream(ctx, &stream)
+		inboundMarshaler, outboundMarshaler := runtime.MarshalerForRequest(mux, req)
+		annotatedContext, err := runtime.AnnotateIncomingContext(ctx, mux, req, "/headscale.v1.HeadscaleService/AuthReject", runtime.WithHTTPPathPattern("/api/v1/auth/reject"))
+		if err != nil {
+			runtime.HTTPError(ctx, mux, outboundMarshaler, w, req, err)
+			return
+		}
+		resp, md, err := local_request_HeadscaleService_AuthReject_0(annotatedContext, inboundMarshaler, server, req, pathParams)
+		md.HeaderMD, md.TrailerMD = metadata.Join(md.HeaderMD, stream.Header()), metadata.Join(md.TrailerMD, stream.Trailer())
+		annotatedContext = runtime.NewServerMetadataContext(annotatedContext, md)
+		if err != nil {
+			runtime.HTTPError(annotatedContext, mux, outboundMarshaler, w, req, err)
+			return
+		}
+		forward_HeadscaleService_AuthReject_0(annotatedContext, mux, outboundMarshaler, w, req, resp, mux.GetForwardResponseOptions()...)
+	})
 	mux.Handle(http.MethodPost, pattern_HeadscaleService_CreateApiKey_0, func(w http.ResponseWriter, req *http.Request, pathParams map[string]string) {
 		ctx, cancel := context.WithCancel(req.Context())
 		defer cancel()
@@ -1758,6 +1899,57 @@ func RegisterHeadscaleServiceHandlerClient(ctx context.Context, mux *runtime.Ser
 		}
 		forward_HeadscaleService_BackfillNodeIPs_0(annotatedContext, mux, outboundMarshaler, w, req, resp, mux.GetForwardResponseOptions()...)
 	})
+	mux.Handle(http.MethodPost, pattern_HeadscaleService_AuthRegister_0, func(w http.ResponseWriter, req *http.Request, pathParams map[string]string) {
+		ctx, cancel := context.WithCancel(req.Context())
+		defer cancel()
+		inboundMarshaler, outboundMarshaler := runtime.MarshalerForRequest(mux, req)
+		annotatedContext, err := runtime.AnnotateContext(ctx, mux, req, "/headscale.v1.HeadscaleService/AuthRegister", runtime.WithHTTPPathPattern("/api/v1/auth/register"))
+		if err != nil {
+			runtime.HTTPError(ctx, mux, outboundMarshaler, w, req, err)
+			return
+		}
+		resp, md, err := request_HeadscaleService_AuthRegister_0(annotatedContext, inboundMarshaler, client, req, pathParams)
+		annotatedContext = runtime.NewServerMetadataContext(annotatedContext, md)
+		if err != nil {
+			runtime.HTTPError(annotatedContext, mux, outboundMarshaler, w, req, err)
+			return
+		}
+		forward_HeadscaleService_AuthRegister_0(annotatedContext, mux, outboundMarshaler, w, req, resp, mux.GetForwardResponseOptions()...)
+	})
+	mux.Handle(http.MethodPost, pattern_HeadscaleService_AuthApprove_0, func(w http.ResponseWriter, req *http.Request, pathParams map[string]string) {
+		ctx, cancel := context.WithCancel(req.Context())
+		defer cancel()
+		inboundMarshaler, outboundMarshaler := runtime.MarshalerForRequest(mux, req)
+		annotatedContext, err := runtime.AnnotateContext(ctx, mux, req, "/headscale.v1.HeadscaleService/AuthApprove", runtime.WithHTTPPathPattern("/api/v1/auth/approve"))
+		if err != nil {
+			runtime.HTTPError(ctx, mux, outboundMarshaler, w, req, err)
+			return
+		}
+		resp, md, err := request_HeadscaleService_AuthApprove_0(annotatedContext, inboundMarshaler, client, req, pathParams)
+		annotatedContext = runtime.NewServerMetadataContext(annotatedContext, md)
+		if err != nil {
+			runtime.HTTPError(annotatedContext, mux, outboundMarshaler, w, req, err)
+			return
+		}
+		forward_HeadscaleService_AuthApprove_0(annotatedContext, mux, outboundMarshaler, w, req, resp, mux.GetForwardResponseOptions()...)
+	})
+	mux.Handle(http.MethodPost, pattern_HeadscaleService_AuthReject_0, func(w http.ResponseWriter, req *http.Request, pathParams map[string]string) {
+		ctx, cancel := context.WithCancel(req.Context())
+		defer cancel()
+		inboundMarshaler, outboundMarshaler := runtime.MarshalerForRequest(mux, req)
+		annotatedContext, err := runtime.AnnotateContext(ctx, mux, req, "/headscale.v1.HeadscaleService/AuthReject", runtime.WithHTTPPathPattern("/api/v1/auth/reject"))
+		if err != nil {
+			runtime.HTTPError(ctx, mux, outboundMarshaler, w, req, err)
+			return
+		}
+		resp, md, err := request_HeadscaleService_AuthReject_0(annotatedContext, inboundMarshaler, client, req, pathParams)
+		annotatedContext = runtime.NewServerMetadataContext(annotatedContext, md)
+		if err != nil {
+			runtime.HTTPError(annotatedContext, mux, outboundMarshaler, w, req, err)
+			return
+		}
+		forward_HeadscaleService_AuthReject_0(annotatedContext, mux, outboundMarshaler, w, req, resp, mux.GetForwardResponseOptions()...)
+	})
 	mux.Handle(http.MethodPost, pattern_HeadscaleService_CreateApiKey_0, func(w http.ResponseWriter, req *http.Request, pathParams map[string]string) {
 		ctx, cancel := context.WithCancel(req.Context())
 		defer cancel()
@@ -1899,6 +2091,9 @@ var (
 	pattern_HeadscaleService_RenameNode_0        = runtime.MustPattern(runtime.NewPattern(1, []int{2, 0, 2, 1, 2, 2, 1, 0, 4, 1, 5, 3, 2, 4, 1, 0, 4, 1, 5, 5}, []string{"api", "v1", "node", "node_id", "rename", "new_name"}, ""))
 	pattern_HeadscaleService_ListNodes_0         = runtime.MustPattern(runtime.NewPattern(1, []int{2, 0, 2, 1, 2, 2}, []string{"api", "v1", "node"}, ""))
 	pattern_HeadscaleService_BackfillNodeIPs_0   = runtime.MustPattern(runtime.NewPattern(1, []int{2, 0, 2, 1, 2, 2, 2, 3}, []string{"api", "v1", "node", "backfillips"}, ""))
+	pattern_HeadscaleService_AuthRegister_0      = runtime.MustPattern(runtime.NewPattern(1, []int{2, 0, 2, 1, 2, 2, 2, 3}, []string{"api", "v1", "auth", "register"}, ""))
+	pattern_HeadscaleService_AuthApprove_0       = runtime.MustPattern(runtime.NewPattern(1, []int{2, 0, 2, 1, 2, 2, 2, 3}, []string{"api", "v1", "auth", "approve"}, ""))
+	pattern_HeadscaleService_AuthReject_0        = runtime.MustPattern(runtime.NewPattern(1, []int{2, 0, 2, 1, 2, 2, 2, 3}, []string{"api", "v1", "auth", "reject"}, ""))
 	pattern_HeadscaleService_CreateApiKey_0      = runtime.MustPattern(runtime.NewPattern(1, []int{2, 0, 2, 1, 2, 2}, []string{"api", "v1", "apikey"}, ""))
 	pattern_HeadscaleService_ExpireApiKey_0      = runtime.MustPattern(runtime.NewPattern(1, []int{2, 0, 2, 1, 2, 2, 2, 3}, []string{"api", "v1", "apikey", "expire"}, ""))
 	pattern_HeadscaleService_ListApiKeys_0       = runtime.MustPattern(runtime.NewPattern(1, []int{2, 0, 2, 1, 2, 2}, []string{"api", "v1", "apikey"}, ""))
@@ -1927,6 +2122,9 @@ var (
 	forward_HeadscaleService_RenameNode_0        = runtime.ForwardResponseMessage
 	forward_HeadscaleService_ListNodes_0         = runtime.ForwardResponseMessage
 	forward_HeadscaleService_BackfillNodeIPs_0   = runtime.ForwardResponseMessage
+	forward_HeadscaleService_AuthRegister_0      = runtime.ForwardResponseMessage
+	forward_HeadscaleService_AuthApprove_0       = runtime.ForwardResponseMessage
+	forward_HeadscaleService_AuthReject_0        = runtime.ForwardResponseMessage
 	forward_HeadscaleService_CreateApiKey_0      = runtime.ForwardResponseMessage
 	forward_HeadscaleService_ExpireApiKey_0      = runtime.ForwardResponseMessage
 	forward_HeadscaleService_ListApiKeys_0       = runtime.ForwardResponseMessage

gen/go/headscale/v1/headscale_grpc.pb.go

@@ -37,6 +37,9 @@ const (
 	HeadscaleService_RenameNode_FullMethodName        = "/headscale.v1.HeadscaleService/RenameNode"
 	HeadscaleService_ListNodes_FullMethodName         = "/headscale.v1.HeadscaleService/ListNodes"
 	HeadscaleService_BackfillNodeIPs_FullMethodName   = "/headscale.v1.HeadscaleService/BackfillNodeIPs"
+	HeadscaleService_AuthRegister_FullMethodName      = "/headscale.v1.HeadscaleService/AuthRegister"
+	HeadscaleService_AuthApprove_FullMethodName       = "/headscale.v1.HeadscaleService/AuthApprove"
+	HeadscaleService_AuthReject_FullMethodName        = "/headscale.v1.HeadscaleService/AuthReject"
 	HeadscaleService_CreateApiKey_FullMethodName      = "/headscale.v1.HeadscaleService/CreateApiKey"
 	HeadscaleService_ExpireApiKey_FullMethodName      = "/headscale.v1.HeadscaleService/ExpireApiKey"
 	HeadscaleService_ListApiKeys_FullMethodName       = "/headscale.v1.HeadscaleService/ListApiKeys"
@@ -71,6 +74,10 @@ type HeadscaleServiceClient interface {
 	RenameNode(ctx context.Context, in *RenameNodeRequest, opts ...grpc.CallOption) (*RenameNodeResponse, error)
 	ListNodes(ctx context.Context, in *ListNodesRequest, opts ...grpc.CallOption) (*ListNodesResponse, error)
 	BackfillNodeIPs(ctx context.Context, in *BackfillNodeIPsRequest, opts ...grpc.CallOption) (*BackfillNodeIPsResponse, error)
+	// --- Auth start ---
+	AuthRegister(ctx context.Context, in *AuthRegisterRequest, opts ...grpc.CallOption) (*AuthRegisterResponse, error)
+	AuthApprove(ctx context.Context, in *AuthApproveRequest, opts ...grpc.CallOption) (*AuthApproveResponse, error)
+	AuthReject(ctx context.Context, in *AuthRejectRequest, opts ...grpc.CallOption) (*AuthRejectResponse, error)
 	// --- ApiKeys start ---
 	CreateApiKey(ctx context.Context, in *CreateApiKeyRequest, opts ...grpc.CallOption) (*CreateApiKeyResponse, error)
 	ExpireApiKey(ctx context.Context, in *ExpireApiKeyRequest, opts ...grpc.CallOption) (*ExpireApiKeyResponse, error)
@@ -271,6 +278,36 @@ func (c *headscaleServiceClient) BackfillNodeIPs(ctx context.Context, in *Backfi
 	return out, nil
 }
 
+func (c *headscaleServiceClient) AuthRegister(ctx context.Context, in *AuthRegisterRequest, opts ...grpc.CallOption) (*AuthRegisterResponse, error) {
+	cOpts := append([]grpc.CallOption{grpc.StaticMethod()}, opts...)
+	out := new(AuthRegisterResponse)
+	err := c.cc.Invoke(ctx, HeadscaleService_AuthRegister_FullMethodName, in, out, cOpts...)
+	if err != nil {
+		return nil, err
+	}
+	return out, nil
+}
+
+func (c *headscaleServiceClient) AuthApprove(ctx context.Context, in *AuthApproveRequest, opts ...grpc.CallOption) (*AuthApproveResponse, error) {
+	cOpts := append([]grpc.CallOption{grpc.StaticMethod()}, opts...)
+	out := new(AuthApproveResponse)
+	err := c.cc.Invoke(ctx, HeadscaleService_AuthApprove_FullMethodName, in, out, cOpts...)
+	if err != nil {
+		return nil, err
+	}
+	return out, nil
+}
+
+func (c *headscaleServiceClient) AuthReject(ctx context.Context, in *AuthRejectRequest, opts ...grpc.CallOption) (*AuthRejectResponse, error) {
+	cOpts := append([]grpc.CallOption{grpc.StaticMethod()}, opts...)
+	out := new(AuthRejectResponse)
+	err := c.cc.Invoke(ctx, HeadscaleService_AuthReject_FullMethodName, in, out, cOpts...)
+	if err != nil {
+		return nil, err
+	}
+	return out, nil
+}
+
 func (c *headscaleServiceClient) CreateApiKey(ctx context.Context, in *CreateApiKeyRequest, opts ...grpc.CallOption) (*CreateApiKeyResponse, error) {
 	cOpts := append([]grpc.CallOption{grpc.StaticMethod()}, opts...)
 	out := new(CreateApiKeyResponse)
@@ -366,6 +403,10 @@ type HeadscaleServiceServer interface {
 	RenameNode(context.Context, *RenameNodeRequest) (*RenameNodeResponse, error)
 	ListNodes(context.Context, *ListNodesRequest) (*ListNodesResponse, error)
 	BackfillNodeIPs(context.Context, *BackfillNodeIPsRequest) (*BackfillNodeIPsResponse, error)
+	// --- Auth start ---
+	AuthRegister(context.Context, *AuthRegisterRequest) (*AuthRegisterResponse, error)
+	AuthApprove(context.Context, *AuthApproveRequest) (*AuthApproveResponse, error)
+	AuthReject(context.Context, *AuthRejectRequest) (*AuthRejectResponse, error)
 	// --- ApiKeys start ---
 	CreateApiKey(context.Context, *CreateApiKeyRequest) (*CreateApiKeyResponse, error)
 	ExpireApiKey(context.Context, *ExpireApiKeyRequest) (*ExpireApiKeyResponse, error)
@@ -440,6 +481,15 @@ func (UnimplementedHeadscaleServiceServer) ListNodes(context.Context, *ListNodes
 func (UnimplementedHeadscaleServiceServer) BackfillNodeIPs(context.Context, *BackfillNodeIPsRequest) (*BackfillNodeIPsResponse, error) {
 	return nil, status.Error(codes.Unimplemented, "method BackfillNodeIPs not implemented")
 }
+func (UnimplementedHeadscaleServiceServer) AuthRegister(context.Context, *AuthRegisterRequest) (*AuthRegisterResponse, error) {
+	return nil, status.Error(codes.Unimplemented, "method AuthRegister not implemented")
+}
+func (UnimplementedHeadscaleServiceServer) AuthApprove(context.Context, *AuthApproveRequest) (*AuthApproveResponse, error) {
+	return nil, status.Error(codes.Unimplemented, "method AuthApprove not implemented")
+}
+func (UnimplementedHeadscaleServiceServer) AuthReject(context.Context, *AuthRejectRequest) (*AuthRejectResponse, error) {
+	return nil, status.Error(codes.Unimplemented, "method AuthReject not implemented")
+}
 func (UnimplementedHeadscaleServiceServer) CreateApiKey(context.Context, *CreateApiKeyRequest) (*CreateApiKeyResponse, error) {
 	return nil, status.Error(codes.Unimplemented, "method CreateApiKey not implemented")
 }
@@ -806,6 +856,60 @@ func _HeadscaleService_BackfillNodeIPs_Handler(srv interface{}, ctx context.Cont
 	return interceptor(ctx, in, info, handler)
 }
 
+func _HeadscaleService_AuthRegister_Handler(srv interface{}, ctx context.Context, dec func(interface{}) error, interceptor grpc.UnaryServerInterceptor) (interface{}, error) {
+	in := new(AuthRegisterRequest)
+	if err := dec(in); err != nil {
+		return nil, err
+	}
+	if interceptor == nil {
+		return srv.(HeadscaleServiceServer).AuthRegister(ctx, in)
+	}
+	info := &grpc.UnaryServerInfo{
+		Server:     srv,
+		FullMethod: HeadscaleService_AuthRegister_FullMethodName,
+	}
+	handler := func(ctx context.Context, req interface{}) (interface{}, error) {
+		return srv.(HeadscaleServiceServer).AuthRegister(ctx, req.(*AuthRegisterRequest))
+	}
+	return interceptor(ctx, in, info, handler)
+}
+
+func _HeadscaleService_AuthApprove_Handler(srv interface{}, ctx context.Context, dec func(interface{}) error, interceptor grpc.UnaryServerInterceptor) (interface{}, error) {
+	in := new(AuthApproveRequest)
+	if err := dec(in); err != nil {
+		return nil, err
+	}
+	if interceptor == nil {
+		return srv.(HeadscaleServiceServer).AuthApprove(ctx, in)
+	}
+	info := &grpc.UnaryServerInfo{
+		Server:     srv,
+		FullMethod: HeadscaleService_AuthApprove_FullMethodName,
+	}
+	handler := func(ctx context.Context, req interface{}) (interface{}, error) {
+		return srv.(HeadscaleServiceServer).AuthApprove(ctx, req.(*AuthApproveRequest))
+	}
+	return interceptor(ctx, in, info, handler)
+}
+
+func _HeadscaleService_AuthReject_Handler(srv interface{}, ctx context.Context, dec func(interface{}) error, interceptor grpc.UnaryServerInterceptor) (interface{}, error) {
+	in := new(AuthRejectRequest)
+	if err := dec(in); err != nil {
+		return nil, err
+	}
+	if interceptor == nil {
+		return srv.(HeadscaleServiceServer).AuthReject(ctx, in)
+	}
+	info := &grpc.UnaryServerInfo{
+		Server:     srv,
+		FullMethod: HeadscaleService_AuthReject_FullMethodName,
+	}
+	handler := func(ctx context.Context, req interface{}) (interface{}, error) {
+		return srv.(HeadscaleServiceServer).AuthReject(ctx, req.(*AuthRejectRequest))
+	}
+	return interceptor(ctx, in, info, handler)
+}
+
 func _HeadscaleService_CreateApiKey_Handler(srv interface{}, ctx context.Context, dec func(interface{}) error, interceptor grpc.UnaryServerInterceptor) (interface{}, error) {
 	in := new(CreateApiKeyRequest)
 	if err := dec(in); err != nil {
@@ -1011,6 +1115,18 @@ var HeadscaleService_ServiceDesc = grpc.ServiceDesc{
 			MethodName: "BackfillNodeIPs",
 			Handler:    _HeadscaleService_BackfillNodeIPs_Handler,
 		},
+		{
+			MethodName: "AuthRegister",
+			Handler:    _HeadscaleService_AuthRegister_Handler,
+		},
+		{
+			MethodName: "AuthApprove",
+			Handler:    _HeadscaleService_AuthApprove_Handler,
+		},
+		{
+			MethodName: "AuthReject",
+			Handler:    _HeadscaleService_AuthReject_Handler,
+		},
 		{
 			MethodName: "CreateApiKey",
 			Handler:    _HeadscaleService_CreateApiKey_Handler,

gen/go/headscale/v1/node.pb.go

@@ -715,9 +715,11 @@ func (*DeleteNodeResponse) Descriptor() ([]byte, []int) {
 }
 
 type ExpireNodeRequest struct {
-	state         protoimpl.MessageState `protogen:"open.v1"`
-	NodeId        uint64                 `protobuf:"varint,1,opt,name=node_id,json=nodeId,proto3" json:"node_id,omitempty"`
-	Expiry        *timestamppb.Timestamp `protobuf:"bytes,2,opt,name=expiry,proto3" json:"expiry,omitempty"`
+	state  protoimpl.MessageState `protogen:"open.v1"`
+	NodeId uint64                 `protobuf:"varint,1,opt,name=node_id,json=nodeId,proto3" json:"node_id,omitempty"`
+	Expiry *timestamppb.Timestamp `protobuf:"bytes,2,opt,name=expiry,proto3" json:"expiry,omitempty"`
+	// When true, sets expiry to null (node will never expire).
+	DisableExpiry bool `protobuf:"varint,3,opt,name=disable_expiry,json=disableExpiry,proto3" json:"disable_expiry,omitempty"`
 	unknownFields protoimpl.UnknownFields
 	sizeCache     protoimpl.SizeCache
 }
@@ -766,6 +768,13 @@ func (x *ExpireNodeRequest) GetExpiry() *timestamppb.Timestamp {
 	return nil
 }
 
+func (x *ExpireNodeRequest) GetDisableExpiry() bool {
+	if x != nil {
+		return x.DisableExpiry
+	}
+	return false
+}
+
 type ExpireNodeResponse struct {
 	state         protoimpl.MessageState `protogen:"open.v1"`
 	Node          *Node                  `protobuf:"bytes,1,opt,name=node,proto3" json:"node,omitempty"`
@@ -1245,10 +1254,11 @@ const file_headscale_v1_node_proto_rawDesc = "" +
 	"\x04node\x18\x01 \x01(\v2\x12.headscale.v1.NodeR\x04node\",\n" +
 	"\x11DeleteNodeRequest\x12\x17\n" +
 	"\anode_id\x18\x01 \x01(\x04R\x06nodeId\"\x14\n" +
-	"\x12DeleteNodeResponse\"`\n" +
+	"\x12DeleteNodeResponse\"\x87\x01\n" +
 	"\x11ExpireNodeRequest\x12\x17\n" +
 	"\anode_id\x18\x01 \x01(\x04R\x06nodeId\x122\n" +
-	"\x06expiry\x18\x02 \x01(\v2\x1a.google.protobuf.TimestampR\x06expiry\"<\n" +
+	"\x06expiry\x18\x02 \x01(\v2\x1a.google.protobuf.TimestampR\x06expiry\x12%\n" +
+	"\x0edisable_expiry\x18\x03 \x01(\bR\rdisableExpiry\"<\n" +
 	"\x12ExpireNodeResponse\x12&\n" +
 	"\x04node\x18\x01 \x01(\v2\x12.headscale.v1.NodeR\x04node\"G\n" +
 	"\x11RenameNodeRequest\x12\x17\n" +

gen/openapiv2/headscale/v1/auth.swagger.json

@@ -0,0 +1,44 @@
+{
+  "swagger": "2.0",
+  "info": {
+    "title": "headscale/v1/auth.proto",
+    "version": "version not set"
+  },
+  "consumes": [
+    "application/json"
+  ],
+  "produces": [
+    "application/json"
+  ],
+  "paths": {},
+  "definitions": {
+    "protobufAny": {
+      "type": "object",
+      "properties": {
+        "@type": {
+          "type": "string"
+        }
+      },
+      "additionalProperties": {}
+    },
+    "rpcStatus": {
+      "type": "object",
+      "properties": {
+        "code": {
+          "type": "integer",
+          "format": "int32"
+        },
+        "message": {
+          "type": "string"
+        },
+        "details": {
+          "type": "array",
+          "items": {
+            "type": "object",
+            "$ref": "#/definitions/protobufAny"
+          }
+        }
+      }
+    }
+  }
+}

gen/openapiv2/headscale/v1/headscale.swagger.json

@@ -138,6 +138,103 @@
         ]
       }
     },
+    "/api/v1/auth/approve": {
+      "post": {
+        "operationId": "HeadscaleService_AuthApprove",
+        "responses": {
+          "200": {
+            "description": "A successful response.",
+            "schema": {
+              "$ref": "#/definitions/v1AuthApproveResponse"
+            }
+          },
+          "default": {
+            "description": "An unexpected error response.",
+            "schema": {
+              "$ref": "#/definitions/rpcStatus"
+            }
+          }
+        },
+        "parameters": [
+          {
+            "name": "body",
+            "in": "body",
+            "required": true,
+            "schema": {
+              "$ref": "#/definitions/v1AuthApproveRequest"
+            }
+          }
+        ],
+        "tags": [
+          "HeadscaleService"
+        ]
+      }
+    },
+    "/api/v1/auth/register": {
+      "post": {
+        "summary": "--- Auth start ---",
+        "operationId": "HeadscaleService_AuthRegister",
+        "responses": {
+          "200": {
+            "description": "A successful response.",
+            "schema": {
+              "$ref": "#/definitions/v1AuthRegisterResponse"
+            }
+          },
+          "default": {
+            "description": "An unexpected error response.",
+            "schema": {
+              "$ref": "#/definitions/rpcStatus"
+            }
+          }
+        },
+        "parameters": [
+          {
+            "name": "body",
+            "in": "body",
+            "required": true,
+            "schema": {
+              "$ref": "#/definitions/v1AuthRegisterRequest"
+            }
+          }
+        ],
+        "tags": [
+          "HeadscaleService"
+        ]
+      }
+    },
+    "/api/v1/auth/reject": {
+      "post": {
+        "operationId": "HeadscaleService_AuthReject",
+        "responses": {
+          "200": {
+            "description": "A successful response.",
+            "schema": {
+              "$ref": "#/definitions/v1AuthRejectResponse"
+            }
+          },
+          "default": {
+            "description": "An unexpected error response.",
+            "schema": {
+              "$ref": "#/definitions/rpcStatus"
+            }
+          }
+        },
+        "parameters": [
+          {
+            "name": "body",
+            "in": "body",
+            "required": true,
+            "schema": {
+              "$ref": "#/definitions/v1AuthRejectRequest"
+            }
+          }
+        ],
+        "tags": [
+          "HeadscaleService"
+        ]
+      }
+    },
     "/api/v1/debug/node": {
       "post": {
         "summary": "--- Node start ---",
@@ -420,6 +517,13 @@
             "required": false,
             "type": "string",
             "format": "date-time"
+          },
+          {
+            "name": "disableExpiry",
+            "description": "When true, sets expiry to null (node will never expire).",
+            "in": "query",
+            "required": false,
+            "type": "boolean"
           }
         ],
         "tags": [
@@ -888,6 +992,47 @@
         }
       }
     },
+    "v1AuthApproveRequest": {
+      "type": "object",
+      "properties": {
+        "authId": {
+          "type": "string"
+        }
+      }
+    },
+    "v1AuthApproveResponse": {
+      "type": "object"
+    },
+    "v1AuthRegisterRequest": {
+      "type": "object",
+      "properties": {
+        "user": {
+          "type": "string"
+        },
+        "authId": {
+          "type": "string"
+        }
+      }
+    },
+    "v1AuthRegisterResponse": {
+      "type": "object",
+      "properties": {
+        "node": {
+          "$ref": "#/definitions/v1Node"
+        }
+      }
+    },
+    "v1AuthRejectRequest": {
+      "type": "object",
+      "properties": {
+        "authId": {
+          "type": "string"
+        }
+      }
+    },
+    "v1AuthRejectResponse": {
+      "type": "object"
+    },
     "v1BackfillNodeIPsResponse": {
       "type": "object",
       "properties": {

go.mod

@@ -1,25 +1,27 @@
 module github.com/juanfont/headscale
 
-go 1.25.5
+go 1.26.1
 
 require (
 	github.com/arl/statsviz v0.8.0
 	github.com/cenkalti/backoff/v5 v5.0.3
 	github.com/chasefleming/elem-go v0.31.0
 	github.com/coder/websocket v1.8.14
-	github.com/coreos/go-oidc/v3 v3.16.0
+	github.com/coreos/go-oidc/v3 v3.17.0
 	github.com/creachadair/command v0.2.0
 	github.com/creachadair/flax v0.0.5
 	github.com/davecgh/go-spew v1.1.2-0.20180830191138-d8f796af33cc
 	github.com/docker/docker v28.5.2+incompatible
 	github.com/fsnotify/fsnotify v1.9.0
 	github.com/glebarez/sqlite v1.11.0
+	github.com/go-chi/chi/v5 v5.2.5
+	github.com/go-chi/metrics v0.1.1
 	github.com/go-gormigrate/gormigrate/v2 v2.1.5
-	github.com/go-json-experiment/json v0.0.0-20250813024750-ebf49471dced
+	github.com/go-json-experiment/json v0.0.0-20251027170946-4849db3c2f7e
 	github.com/gofrs/uuid/v5 v5.4.0
 	github.com/google/go-cmp v0.7.0
 	github.com/gorilla/mux v1.8.1
-	github.com/grpc-ecosystem/grpc-gateway/v2 v2.27.4
+	github.com/grpc-ecosystem/grpc-gateway/v2 v2.27.7
 	github.com/jagottsicher/termcolor v1.0.2
 	github.com/oauth2-proxy/mockoidc v0.0.0-20240214162133-caebfff84d25
 	github.com/ory/dockertest/v3 v3.12.0
@@ -28,7 +30,7 @@ require (
 	github.com/prometheus/client_golang v1.23.2
 	github.com/prometheus/common v0.67.5
 	github.com/pterm/pterm v0.12.82
-	github.com/puzpuzpuz/xsync/v4 v4.3.0
+	github.com/puzpuzpuz/xsync/v4 v4.4.0
 	github.com/rs/zerolog v1.34.0
 	github.com/samber/lo v1.52.0
 	github.com/sasha-s/go-deadlock v0.3.6
@@ -40,18 +42,18 @@ require (
 	github.com/tailscale/tailsql v0.0.0-20260105194658-001575c3ca09
 	github.com/tcnksm/go-latest v0.0.0-20170313132115-e3007ae9052e
 	go4.org/netipx v0.0.0-20231129151722-fdeea329fbba
-	golang.org/x/crypto v0.46.0
-	golang.org/x/exp v0.0.0-20251023183803-a4bb9ffd2546
-	golang.org/x/net v0.48.0
+	golang.org/x/crypto v0.47.0
+	golang.org/x/exp v0.0.0-20260112195511-716be5621a96
+	golang.org/x/net v0.49.0
 	golang.org/x/oauth2 v0.34.0
 	golang.org/x/sync v0.19.0
-	google.golang.org/genproto/googleapis/api v0.0.0-20251222181119-0a764e51fe1b
+	google.golang.org/genproto/googleapis/api v0.0.0-20260203192932-546029d2fa20
 	google.golang.org/grpc v1.78.0
 	google.golang.org/protobuf v1.36.11
 	gopkg.in/yaml.v3 v3.0.1
 	gorm.io/driver/postgres v1.6.0
 	gorm.io/gorm v1.31.1
-	tailscale.com v1.94.0
+	tailscale.com v1.94.1
 	zgo.at/zcache/v2 v2.4.1
 	zombiezen.com/go/postgrestest v1.0.1
 )
@@ -80,6 +82,14 @@ require (
 	modernc.org/sqlite v1.44.3
 )
 
+// NOTE: gvisor must be updated in lockstep with
+// tailscale.com. The version used here should match
+// the version required by the tailscale.com dependency.
+// To find the correct version, check tailscale.com's
+// go.mod file for the gvisor.dev/gvisor version:
+// https://github.com/tailscale/tailscale/blob/main/go.mod
+require gvisor.dev/gvisor v0.0.0-20250205023644-9414b50a5633 // indirect
+
 require (
 	atomicgo.dev/cursor v0.2.0 // indirect
 	atomicgo.dev/keyboard v0.2.9 // indirect
@@ -90,102 +100,107 @@ require (
 	github.com/Microsoft/go-winio v0.6.2 // indirect
 	github.com/Nvveen/Gotty v0.0.0-20120604004816-cd527374f1e5 // indirect
 	github.com/akutz/memconn v0.1.0 // indirect
-	github.com/alexbrainman/sspi v0.0.0-20231016080023-1a75b4708caa // indirect
-	github.com/aws/aws-sdk-go-v2 v1.41.0 // indirect
-	github.com/aws/aws-sdk-go-v2/config v1.29.5 // indirect
-	github.com/aws/aws-sdk-go-v2/credentials v1.17.58 // indirect
-	github.com/aws/aws-sdk-go-v2/feature/ec2/imds v1.16.27 // indirect
-	github.com/aws/aws-sdk-go-v2/internal/configsources v1.4.16 // indirect
-	github.com/aws/aws-sdk-go-v2/internal/endpoints/v2 v2.7.16 // indirect
-	github.com/aws/aws-sdk-go-v2/internal/ini v1.8.2 // indirect
+	github.com/alexbrainman/sspi v0.0.0-20250919150558-7d374ff0d59e // indirect
+	github.com/aws/aws-sdk-go-v2 v1.41.1 // indirect
+	github.com/aws/aws-sdk-go-v2/config v1.32.7 // indirect
+	github.com/aws/aws-sdk-go-v2/credentials v1.19.7 // indirect
+	github.com/aws/aws-sdk-go-v2/feature/ec2/imds v1.18.17 // indirect
+	github.com/aws/aws-sdk-go-v2/internal/configsources v1.4.17 // indirect
+	github.com/aws/aws-sdk-go-v2/internal/endpoints/v2 v2.7.17 // indirect
+	github.com/aws/aws-sdk-go-v2/internal/ini v1.8.4 // indirect
 	github.com/aws/aws-sdk-go-v2/service/internal/accept-encoding v1.13.4 // indirect
-	github.com/aws/aws-sdk-go-v2/service/internal/presigned-url v1.13.16 // indirect
-	github.com/aws/aws-sdk-go-v2/service/sso v1.24.14 // indirect
-	github.com/aws/aws-sdk-go-v2/service/ssooidc v1.28.13 // indirect
-	github.com/aws/aws-sdk-go-v2/service/sts v1.41.5 // indirect
+	github.com/aws/aws-sdk-go-v2/service/internal/presigned-url v1.13.17 // indirect
+	github.com/aws/aws-sdk-go-v2/service/signin v1.0.5 // indirect
+	github.com/aws/aws-sdk-go-v2/service/sso v1.30.9 // indirect
+	github.com/aws/aws-sdk-go-v2/service/ssooidc v1.35.13 // indirect
+	github.com/aws/aws-sdk-go-v2/service/sts v1.41.6 // indirect
 	github.com/aws/smithy-go v1.24.0 // indirect
-	github.com/axiomhq/hyperloglog v0.0.0-20240319100328-84253e514e02 // indirect
+	github.com/axiomhq/hyperloglog v0.2.6 // indirect
 	github.com/beorn7/perks v1.0.1 // indirect
 	github.com/cenkalti/backoff/v4 v4.3.0 // indirect
 	github.com/cespare/xxhash/v2 v2.3.0 // indirect
-	github.com/clipperhouse/uax29/v2 v2.2.0 // indirect
+	github.com/clipperhouse/stringish v0.1.1 // indirect
+	github.com/clipperhouse/uax29/v2 v2.5.0 // indirect
 	github.com/containerd/console v1.0.5 // indirect
 	github.com/containerd/continuity v0.4.5 // indirect
 	github.com/containerd/errdefs v1.0.0 // indirect
 	github.com/containerd/errdefs/pkg v0.3.0 // indirect
-	github.com/creachadair/mds v0.25.10 // indirect
-	github.com/creachadair/msync v0.7.1 // indirect
-	github.com/dblohm7/wingoes v0.0.0-20240123200102-b75a8a7d7eb0 // indirect
-	github.com/dgryski/go-metro v0.0.0-20180109044635-280f6062b5bc // indirect
+	github.com/creachadair/mds v0.25.15 // indirect
+	github.com/creachadair/msync v0.8.2 // indirect
+	github.com/dblohm7/wingoes v0.0.0-20250822163801-6d8e6105c62d // indirect
+	github.com/dgryski/go-metro v0.0.0-20250106013310-edb8663e5e33 // indirect
 	github.com/distribution/reference v0.6.0 // indirect
-	github.com/docker/cli v28.5.1+incompatible // indirect
+	github.com/docker/cli v29.2.1+incompatible // indirect
 	github.com/docker/go-connections v0.6.0 // indirect
 	github.com/docker/go-units v0.5.0 // indirect
 	github.com/dustin/go-humanize v1.0.1 // indirect
 	github.com/felixge/fgprof v0.9.5 // indirect
 	github.com/felixge/httpsnoop v1.0.4 // indirect
 	github.com/fxamacker/cbor/v2 v2.9.0 // indirect
-	github.com/gaissmai/bart v0.18.0 // indirect
+	github.com/gaissmai/bart v0.26.1 // indirect
 	github.com/glebarez/go-sqlite v1.22.0 // indirect
 	github.com/go-jose/go-jose/v3 v3.0.4 // indirect
 	github.com/go-jose/go-jose/v4 v4.1.3 // indirect
 	github.com/go-logr/logr v1.4.3 // indirect
 	github.com/go-logr/stdr v1.2.2 // indirect
-	github.com/go-viper/mapstructure/v2 v2.4.0 // indirect
-	github.com/godbus/dbus/v5 v5.1.1-0.20230522191255-76236955d466 // indirect
-	github.com/golang-jwt/jwt/v5 v5.3.0 // indirect
+	github.com/go-viper/mapstructure/v2 v2.5.0 // indirect
+	github.com/godbus/dbus/v5 v5.2.2 // indirect
+	github.com/golang-jwt/jwt/v5 v5.3.1 // indirect
 	github.com/golang/groupcache v0.0.0-20241129210726-2c02b8208cf8 // indirect
 	github.com/golang/protobuf v1.5.4 // indirect
 	github.com/google/btree v1.1.3 // indirect
 	github.com/google/go-github v17.0.0+incompatible // indirect
-	github.com/google/go-querystring v1.1.0 // indirect
-	github.com/google/pprof v0.0.0-20251007162407-5df77e3f7d1d // indirect
+	github.com/google/go-querystring v1.2.0 // indirect
+	github.com/google/pprof v0.0.0-20260202012954-cb029daf43ef // indirect
 	github.com/google/shlex v0.0.0-20191202100458-e7afc7fbc510 // indirect
 	github.com/google/uuid v1.6.0 // indirect
 	github.com/gookit/color v1.6.0 // indirect
 	github.com/gorilla/websocket v1.5.4-0.20250319132907-e064f32e3674 // indirect
-	github.com/hashicorp/go-version v1.7.0 // indirect
+	github.com/hashicorp/go-version v1.8.0 // indirect
 	github.com/hdevalence/ed25519consensus v0.2.0 // indirect
 	github.com/huin/goupnp v1.3.0 // indirect
 	github.com/inconshreveable/mousetrap v1.1.0 // indirect
 	github.com/jackc/pgpassfile v1.0.0 // indirect
 	github.com/jackc/pgservicefile v0.0.0-20240606120523-5a60cdf6a761 // indirect
-	github.com/jackc/pgx/v5 v5.7.6 // indirect
+	github.com/jackc/pgx/v5 v5.8.0 // indirect
 	github.com/jackc/puddle/v2 v2.2.2 // indirect
 	github.com/jinzhu/inflection v1.0.0 // indirect
 	github.com/jinzhu/now v1.1.5 // indirect
-	github.com/jsimonetti/rtnetlink v1.4.1 // indirect
-	github.com/klauspost/compress v1.18.2 // indirect
-	github.com/lib/pq v1.10.9 // indirect
+	github.com/jsimonetti/rtnetlink v1.4.2 // indirect
+	github.com/kamstrup/intmap v0.5.2 // indirect
+	github.com/klauspost/compress v1.18.3 // indirect
+	github.com/lib/pq v1.11.1 // indirect
 	github.com/lithammer/fuzzysearch v1.1.8 // indirect
 	github.com/mattn/go-colorable v0.1.14 // indirect
 	github.com/mattn/go-isatty v0.0.20 // indirect
 	github.com/mattn/go-runewidth v0.0.19 // indirect
-	github.com/mdlayher/netlink v1.7.3-0.20250113171957-fbb4dce95f42 // indirect
-	github.com/mdlayher/socket v0.5.0 // indirect
+	github.com/mdlayher/netlink v1.8.0 // indirect
+	github.com/mdlayher/socket v0.5.1 // indirect
 	github.com/mitchellh/go-ps v1.0.0 // indirect
 	github.com/moby/docker-image-spec v1.3.1 // indirect
+	github.com/moby/moby/api v1.53.0 // indirect
+	github.com/moby/moby/client v0.2.2 // indirect
 	github.com/moby/sys/atomicwriter v0.1.0 // indirect
 	github.com/moby/sys/user v0.4.0 // indirect
 	github.com/moby/term v0.5.2 // indirect
-	github.com/morikuni/aec v1.0.0 // indirect
+	github.com/morikuni/aec v1.1.0 // indirect
 	github.com/munnerz/goautoneg v0.0.0-20191010083416-a7dc8b61c822 // indirect
 	github.com/ncruces/go-strftime v1.0.0 // indirect
 	github.com/opencontainers/go-digest v1.0.0 // indirect
 	github.com/opencontainers/image-spec v1.1.1 // indirect
 	github.com/opencontainers/runc v1.3.2 // indirect
 	github.com/pelletier/go-toml/v2 v2.2.4 // indirect
-	github.com/petermattis/goid v0.0.0-20250904145737-900bdf8bb490 // indirect
-	github.com/pires/go-proxyproto v0.8.1 // indirect
+	github.com/petermattis/goid v0.0.0-20260113132338-7c7de50cc741 // indirect
+	github.com/pires/go-proxyproto v0.9.2 // indirect
 	github.com/pkg/errors v0.9.1 // indirect
 	github.com/pmezard/go-difflib v1.0.1-0.20181226105442-5d4384ee4fb2 // indirect
-	github.com/prometheus-community/pro-bing v0.4.0 // indirect
+	github.com/prometheus-community/pro-bing v0.7.0 // indirect
 	github.com/prometheus/client_model v0.6.2 // indirect
-	github.com/prometheus/procfs v0.16.1 // indirect
+	github.com/prometheus/procfs v0.19.2 // indirect
 	github.com/remyoudompheng/bigfft v0.0.0-20230129092748-24d4a6f8daec // indirect
-	github.com/safchain/ethtool v0.3.0 // indirect
+	github.com/safchain/ethtool v0.7.0 // indirect
 	github.com/sagikazarmark/locafero v0.12.0 // indirect
-	github.com/sirupsen/logrus v1.9.3 // indirect
+	github.com/sirupsen/logrus v1.9.4 // indirect
 	github.com/spf13/afero v1.15.0 // indirect
 	github.com/spf13/cast v1.10.0 // indirect
 	github.com/spf13/pflag v1.0.10 // indirect
@@ -193,8 +208,8 @@ require (
 	github.com/tailscale/certstore v0.1.1-0.20231202035212-d3fa0460f47e // indirect
 	github.com/tailscale/go-winio v0.0.0-20231025203758-c4f33415bf55 // indirect
 	github.com/tailscale/peercred v0.0.0-20250107143737-35a0c7bd7edc // indirect
-	github.com/tailscale/setec v0.0.0-20251203133219-2ab774e4129a // indirect
-	github.com/tailscale/web-client-prebuilt v0.0.0-20250124233751-d4cd19a26976 // indirect
+	github.com/tailscale/setec v0.0.0-20260115174028-19d190c5556d // indirect
+	github.com/tailscale/web-client-prebuilt v0.0.0-20251127225136-f19339b67368 // indirect
 	github.com/tailscale/wireguard-go v0.0.0-20250716170648-1d0488a3d7da // indirect
 	github.com/x448/float16 v0.8.4 // indirect
 	github.com/xeipuuv/gojsonpointer v0.0.0-20190905194746-02993c407bfb // indirect
@@ -202,24 +217,23 @@ require (
 	github.com/xeipuuv/gojsonschema v1.2.0 // indirect
 	github.com/xo/terminfo v0.0.0-20220910002029-abceb7e1c41e // indirect
 	go.opentelemetry.io/auto/sdk v1.2.1 // indirect
-	go.opentelemetry.io/contrib/instrumentation/net/http/otelhttp v0.64.0 // indirect
-	go.opentelemetry.io/otel v1.39.0 // indirect
-	go.opentelemetry.io/otel/exporters/otlp/otlptrace/otlptracehttp v1.36.0 // indirect
-	go.opentelemetry.io/otel/metric v1.39.0 // indirect
-	go.opentelemetry.io/otel/trace v1.39.0 // indirect
+	go.opentelemetry.io/contrib/instrumentation/net/http/otelhttp v0.65.0 // indirect
+	go.opentelemetry.io/otel v1.40.0 // indirect
+	go.opentelemetry.io/otel/exporters/otlp/otlptrace/otlptracehttp v1.40.0 // indirect
+	go.opentelemetry.io/otel/metric v1.40.0 // indirect
+	go.opentelemetry.io/otel/trace v1.40.0 // indirect
 	go.yaml.in/yaml/v2 v2.4.3 // indirect
 	go.yaml.in/yaml/v3 v3.0.4 // indirect
 	go4.org/mem v0.0.0-20240501181205-ae6ca9944745 // indirect
-	golang.org/x/mod v0.30.0 // indirect
+	golang.org/x/mod v0.32.0 // indirect
 	golang.org/x/sys v0.40.0 // indirect
-	golang.org/x/term v0.38.0 // indirect
-	golang.org/x/text v0.32.0 // indirect
-	golang.org/x/time v0.12.0 // indirect
-	golang.org/x/tools v0.39.0 // indirect
+	golang.org/x/term v0.39.0 // indirect
+	golang.org/x/text v0.33.0 // indirect
+	golang.org/x/time v0.14.0 // indirect
+	golang.org/x/tools v0.41.0 // indirect
 	golang.zx2c4.com/wintun v0.0.0-20230126152724-0fa3db229ce2 // indirect
 	golang.zx2c4.com/wireguard/windows v0.5.3 // indirect
-	google.golang.org/genproto/googleapis/rpc v0.0.0-20251222181119-0a764e51fe1b // indirect
-	gvisor.dev/gvisor v0.0.0-20250205023644-9414b50a5633 // indirect
+	google.golang.org/genproto/googleapis/rpc v0.0.0-20260203192932-546029d2fa20 // indirect
 )
 
 tool (

go.sum

@@ -33,53 +33,55 @@ github.com/Nvveen/Gotty v0.0.0-20120604004816-cd527374f1e5 h1:TngWCqHvy9oXAN6lEV
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+github.com/axiomhq/hyperloglog v0.2.6 h1:sRhvvF3RIXWQgAXaTphLp4yJiX4S0IN3MWTaAgZoRJw=
+github.com/axiomhq/hyperloglog v0.2.6/go.mod h1:YjX/dQqCR/7QYX0g8mu8UZAjpIenz1FKM71UEsjFoTo=
 github.com/beorn7/perks v1.0.1 h1:VlbKKnNfV8bJzeqoa4cOKqO6bYr3WgKZxO8Z16+hsOM=
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@@ -101,8 +103,10 @@ github.com/chzyer/test v0.0.0-20180213035817-a1ea475d72b1/go.mod h1:Q3SI9o4m/ZMn
 github.com/chzyer/test v1.0.0/go.mod h1:2JlltgoNkt4TW/z9V/IzDdFaMTM2JPIi26O1pF38GC8=
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-github.com/clipperhouse/uax29/v2 v2.2.0/go.mod h1:EFJ2TJMRUaplDxHKj1qAEhCtQPW2tJSwu5BF98AuoVM=
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+github.com/clipperhouse/stringish v0.1.1/go.mod h1:v/WhFtE1q0ovMta2+m+UbpZ+2/HEXNWYXQgCt4hdOzA=
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@@ -118,38 +122,38 @@ github.com/containerd/log v0.1.0 h1:TCJt7ioM2cr/tfR8GPbGf9/VRAX8D2B4PjzCpfX540I=
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@@ -267,8 +275,8 @@ github.com/jackc/pgpassfile v1.0.0 h1:/6Hmqy13Ss2zCq62VdNG8tM1wchn8zjSGOBJ6icpsI
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@@ -282,10 +290,12 @@ github.com/jinzhu/now v1.1.5/go.mod h1:d3SSVoowX0Lcu0IBviAWJpolVfI5UJVZZ7cO71lE/
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@@ -306,8 +316,8 @@ github.com/kylelemons/godebug v1.1.0 h1:RPNrshWIDI6G2gRW9EHilWtl7Z6Sb1BR0xunSBf0
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@@ -365,14 +379,14 @@ github.com/ory/dockertest/v3 v3.12.0/go.mod h1:aKNDTva3cp8dwOWwb9cWuX84aH5akkxXR
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@@ -382,16 +396,16 @@ github.com/pkg/sftp v1.13.6/go.mod h1:tz1ryNURKu77RL+GuCzmoJYxQczL3wLNNpPWagdg4Q
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@@ -401,8 +415,8 @@ github.com/pterm/pterm v0.12.36/go.mod h1:NjiL09hFhT/vWjQHSj1athJpx6H8cjpHXNAK5b
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@@ -412,8 +426,8 @@ github.com/rs/xid v1.6.0/go.mod h1:7XoLgs4eV+QndskICGsho+ADou8ySMSjJKDIan90Nz0=
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@@ -423,8 +437,8 @@ github.com/sasha-s/go-deadlock v0.3.6/go.mod h1:CUqNyyvMxTyjFqDT7MRg9mb4Dv/btmGT
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@@ -462,14 +476,14 @@ github.com/tailscale/netlink v1.1.1-0.20240822203006-4d49adab4de7 h1:uFsXVBE9Qr4
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@@ -480,8 +494,8 @@ github.com/tc-hib/winres v0.2.1 h1:YDE0FiP0VmtRaDn7+aaChp1KiF4owBiJa5l964l5ujA=
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@@ -503,24 +517,24 @@ github.com/xo/terminfo v0.0.0-20220910002029-abceb7e1c41e/go.mod h1:RbqR21r5mrJu
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@@ -534,25 +548,25 @@ go4.org/netipx v0.0.0-20231129151722-fdeea329fbba/go.mod h1:PLyyIXexvUFg3Owu6p/W
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 golang.org/x/net v0.0.0-20210226172049-e18ecbb05110/go.mod h1:m0MpNAwzfU5UDzcl9v0D8zg8gWTRqZa9RBIspLL5mdg=
 golang.org/x/net v0.0.0-20220722155237-a158d28d115b/go.mod h1:XRhObCWvk6IyKnWLug+ECip1KBveYUHfp+8e9klMJ9c=
 golang.org/x/net v0.6.0/go.mod h1:2Tu9+aMcznHK/AK1HMvgo6xiTLG5rD5rZLDS+rp2Bjs=
 golang.org/x/net v0.10.0/go.mod h1:0qNGK6F8kojg2nk9dLZ2mShWaEBan6FAoqfSigmmuDg=
-golang.org/x/net v0.48.0 h1:zyQRTTrjc33Lhh0fBgT/H3oZq9WuvRR5gPC70xpDiQU=
-golang.org/x/net v0.48.0/go.mod h1:+ndRgGjkh8FGtu1w1FGbEC31if4VrNVMuKTgcAAnQRY=
+golang.org/x/net v0.49.0 h1:eeHFmOGUTtaaPSGNmjBKpbng9MulQsJURQUAfUwY++o=
+golang.org/x/net v0.49.0/go.mod h1:/ysNB2EvaqvesRkuLAyjI1ycPZlQHM3q01F02UY/MV8=
 golang.org/x/oauth2 v0.34.0 h1:hqK/t4AKgbqWkdkcAeI8XLmbK+4m4G5YeQRrmiotGlw=
 golang.org/x/oauth2 v0.34.0/go.mod h1:lzm5WQJQwKZ3nwavOZ3IS5Aulzxi68dUSgRHujetwEA=
 golang.org/x/sync v0.0.0-20190423024810-112230192c58/go.mod h1:RxMgew5VJxzue5/jJTE5uejpjVlOe/izrB70Jof72aM=
@@ -572,10 +586,8 @@ golang.org/x/sys v0.0.0-20211013075003-97ac67df715c/go.mod h1:oPkhp1MJrh7nUepCBc
 golang.org/x/sys v0.0.0-20220310020820-b874c991c1a5/go.mod h1:oPkhp1MJrh7nUepCBck5+mAzfO9JrbApNNgaTdGDITg=
 golang.org/x/sys v0.0.0-20220319134239-a9b59b0215f8/go.mod h1:oPkhp1MJrh7nUepCBck5+mAzfO9JrbApNNgaTdGDITg=
 golang.org/x/sys v0.0.0-20220520151302-bc2c85ada10a/go.mod h1:oPkhp1MJrh7nUepCBck5+mAzfO9JrbApNNgaTdGDITg=
-golang.org/x/sys v0.0.0-20220715151400-c0bba94af5f8/go.mod h1:oPkhp1MJrh7nUepCBck5+mAzfO9JrbApNNgaTdGDITg=
 golang.org/x/sys v0.0.0-20220722155257-8c9f86f7a55f/go.mod h1:oPkhp1MJrh7nUepCBck5+mAzfO9JrbApNNgaTdGDITg=
 golang.org/x/sys v0.0.0-20220811171246-fbc7d0a398ab/go.mod h1:oPkhp1MJrh7nUepCBck5+mAzfO9JrbApNNgaTdGDITg=
-golang.org/x/sys v0.0.0-20220817070843-5a390386f1f2/go.mod h1:oPkhp1MJrh7nUepCBck5+mAzfO9JrbApNNgaTdGDITg=
 golang.org/x/sys v0.1.0/go.mod h1:oPkhp1MJrh7nUepCBck5+mAzfO9JrbApNNgaTdGDITg=
 golang.org/x/sys v0.5.0/go.mod h1:oPkhp1MJrh7nUepCBck5+mAzfO9JrbApNNgaTdGDITg=
 golang.org/x/sys v0.6.0/go.mod h1:oPkhp1MJrh7nUepCBck5+mAzfO9JrbApNNgaTdGDITg=
@@ -591,36 +603,35 @@ golang.org/x/term v0.0.0-20210927222741-03fcf44c2211/go.mod h1:jbD1KX2456YbFQfuX
 golang.org/x/term v0.5.0/go.mod h1:jMB1sMXY+tzblOD4FWmEbocvup2/aLOaQEp7JmGp78k=
 golang.org/x/term v0.8.0/go.mod h1:xPskH00ivmX89bAKVGSKKtLOWNx2+17Eiy94tnKShWo=
 golang.org/x/term v0.17.0/go.mod h1:lLRBjIVuehSbZlaOtGMbcMncT+aqLLLmKrsjNrUguwk=
-golang.org/x/term v0.38.0 h1:PQ5pkm/rLO6HnxFR7N2lJHOZX6Kez5Y1gDSJla6jo7Q=
-golang.org/x/term v0.38.0/go.mod h1:bSEAKrOT1W+VSu9TSCMtoGEOUcKxOKgl3LE5QEF/xVg=
+golang.org/x/term v0.39.0 h1:RclSuaJf32jOqZz74CkPA9qFuVTX7vhLlpfj/IGWlqY=
+golang.org/x/term v0.39.0/go.mod h1:yxzUCTP/U+FzoxfdKmLaA0RV1WgE0VY7hXBwKtY/4ww=
 golang.org/x/text v0.3.0/go.mod h1:NqM8EUOU14njkJ3fqMW+pc6Ldnwhi/IjpwHt7yyuwOQ=
 golang.org/x/text v0.3.3/go.mod h1:5Zoc/QRtKVWzQhOtBMvqHzDpF6irO9z98xDceosuGiQ=
 golang.org/x/text v0.3.7/go.mod h1:u+2+/6zg+i71rQMx5EYifcz6MCKuco9NR6JIITiCfzQ=
 golang.org/x/text v0.7.0/go.mod h1:mrYo+phRRbMaCq/xk9113O4dZlRixOauAjOtrjsXDZ8=
 golang.org/x/text v0.9.0/go.mod h1:e1OnstbJyHTd6l/uOt8jFFHp6TRDWZR/bV3emEE/zU8=
 golang.org/x/text v0.14.0/go.mod h1:18ZOQIKpY8NJVqYksKHtTdi31H5itFRjB5/qKTNYzSU=
-golang.org/x/text v0.32.0 h1:ZD01bjUt1FQ9WJ0ClOL5vxgxOI/sVCNgX1YtKwcY0mU=
-golang.org/x/text v0.32.0/go.mod h1:o/rUWzghvpD5TXrTIBuJU77MTaN0ljMWE47kxGJQ7jY=
-golang.org/x/time v0.12.0 h1:ScB/8o8olJvc+CQPWrK3fPZNfh7qgwCrY0zJmoEQLSE=
-golang.org/x/time v0.12.0/go.mod h1:CDIdPxbZBQxdj6cxyCIdrNogrJKMJ7pr37NYpMcMDSg=
+golang.org/x/text v0.33.0 h1:B3njUFyqtHDUI5jMn1YIr5B0IE2U0qck04r6d4KPAxE=
+golang.org/x/text v0.33.0/go.mod h1:LuMebE6+rBincTi9+xWTY8TztLzKHc/9C1uBCG27+q8=
+golang.org/x/time v0.14.0 h1:MRx4UaLrDotUKUdCIqzPC48t1Y9hANFKIRpNx+Te8PI=
+golang.org/x/time v0.14.0/go.mod h1:eL/Oa2bBBK0TkX57Fyni+NgnyQQN4LitPmob2Hjnqw4=
 golang.org/x/tools v0.0.0-20180917221912-90fa682c2a6e/go.mod h1:n7NCudcB/nEzxVGmLbDWY5pfWTLqBcC2KZ6jyYvM4mQ=
 golang.org/x/tools v0.0.0-20191119224855-298f0cb1881e/go.mod h1:b+2E5dAYhXwXZwtnZ6UAqBI28+e2cm9otk0dWdXHAEo=
 golang.org/x/tools v0.1.12/go.mod h1:hNGJHUnrk76NpqgfD5Aqm5Crs+Hm0VOH/i9J2+nxYbc=
 golang.org/x/tools v0.6.0/go.mod h1:Xwgl3UAJ/d3gWutnCtw505GrjyAbvKui8lOU390QaIU=
-golang.org/x/tools v0.39.0 h1:ik4ho21kwuQln40uelmciQPp9SipgNDdrafrYA4TmQQ=
-golang.org/x/tools v0.39.0/go.mod h1:JnefbkDPyD8UU2kI5fuf8ZX4/yUeh9W877ZeBONxUqQ=
+golang.org/x/tools v0.41.0 h1:a9b8iMweWG+S0OBnlU36rzLp20z1Rp10w+IY2czHTQc=
+golang.org/x/tools v0.41.0/go.mod h1:XSY6eDqxVNiYgezAVqqCeihT4j1U2CCsqvH3WhQpnlg=
 golang.org/x/xerrors v0.0.0-20190717185122-a985d3407aa7/go.mod h1:I/5z698sn9Ka8TeJc9MKroUUfqBBauWjQqLJ2OPfmY0=
-golang.org/x/xerrors v0.0.0-20191204190536-9bdfabe68543/go.mod h1:I/5z698sn9Ka8TeJc9MKroUUfqBBauWjQqLJ2OPfmY0=
 golang.zx2c4.com/wintun v0.0.0-20230126152724-0fa3db229ce2 h1:B82qJJgjvYKsXS9jeunTOisW56dUokqW/FOteYJJ/yg=
 golang.zx2c4.com/wintun v0.0.0-20230126152724-0fa3db229ce2/go.mod h1:deeaetjYA+DHMHg+sMSMI58GrEteJUUzzw7en6TJQcI=
 golang.zx2c4.com/wireguard/windows v0.5.3 h1:On6j2Rpn3OEMXqBq00QEDC7bWSZrPIHKIus8eIuExIE=
 golang.zx2c4.com/wireguard/windows v0.5.3/go.mod h1:9TEe8TJmtwyQebdFwAkEWOPr3prrtqm+REGFifP60hI=
 gonum.org/v1/gonum v0.16.0 h1:5+ul4Swaf3ESvrOnidPp4GZbzf0mxVQpDCYUQE7OJfk=
 gonum.org/v1/gonum v0.16.0/go.mod h1:fef3am4MQ93R2HHpKnLk4/Tbh/s0+wqD5nfa6Pnwy4E=
-google.golang.org/genproto/googleapis/api v0.0.0-20251222181119-0a764e51fe1b h1:uA40e2M6fYRBf0+8uN5mLlqUtV192iiksiICIBkYJ1E=
-google.golang.org/genproto/googleapis/api v0.0.0-20251222181119-0a764e51fe1b/go.mod h1:Xa7le7qx2vmqB/SzWUBa7KdMjpdpAHlh5QCSnjessQk=
-google.golang.org/genproto/googleapis/rpc v0.0.0-20251222181119-0a764e51fe1b h1:Mv8VFug0MP9e5vUxfBcE3vUkV6CImK3cMNMIDFjmzxU=
-google.golang.org/genproto/googleapis/rpc v0.0.0-20251222181119-0a764e51fe1b/go.mod h1:j9x/tPzZkyxcgEFkiKEEGxfvyumM01BEtsW8xzOahRQ=
+google.golang.org/genproto/googleapis/api v0.0.0-20260203192932-546029d2fa20 h1:7ei4lp52gK1uSejlA8AZl5AJjeLUOHBQscRQZUgAcu0=
+google.golang.org/genproto/googleapis/api v0.0.0-20260203192932-546029d2fa20/go.mod h1:ZdbssH/1SOVnjnDlXzxDHK2MCidiqXtbYccJNzNYPEE=
+google.golang.org/genproto/googleapis/rpc v0.0.0-20260203192932-546029d2fa20 h1:Jr5R2J6F6qWyzINc+4AM8t5pfUz6beZpHp678GNrMbE=
+google.golang.org/genproto/googleapis/rpc v0.0.0-20260203192932-546029d2fa20/go.mod h1:j9x/tPzZkyxcgEFkiKEEGxfvyumM01BEtsW8xzOahRQ=
 google.golang.org/grpc v1.78.0 h1:K1XZG/yGDJnzMdd/uZHAkVqJE+xIDOcmdSFZkBUicNc=
 google.golang.org/grpc v1.78.0/go.mod h1:I47qjTo4OKbMkjA/aOOwxDIiPSBofUtQUI5EfpWvW7U=
 google.golang.org/protobuf v1.36.11 h1:fV6ZwhNocDyBLK0dj+fg8ektcVegBBuEolpbTQyBNVE=
@@ -639,8 +650,8 @@ gorm.io/driver/postgres v1.6.0 h1:2dxzU8xJ+ivvqTRph34QX+WrRaJlmfyPqXmoGVjMBa4=
 gorm.io/driver/postgres v1.6.0/go.mod h1:vUw0mrGgrTK+uPHEhAdV4sfFELrByKVGnaVRkXDhtWo=
 gorm.io/gorm v1.31.1 h1:7CA8FTFz/gRfgqgpeKIBcervUn3xSyPUmr6B2WXJ7kg=
 gorm.io/gorm v1.31.1/go.mod h1:XyQVbO2k6YkOis7C2437jSit3SsDK72s7n7rsSHd+Gs=
-gotest.tools/v3 v3.5.1 h1:EENdUnS3pdur5nybKYIh2Vfgc8IUNBjxDPSjtiJcOzU=
-gotest.tools/v3 v3.5.1/go.mod h1:isy3WKz7GK6uNw/sbHzfKBLvlvXwUyV06n6brMxxopU=
+gotest.tools/v3 v3.5.2 h1:7koQfIKdy+I8UTetycgUqXWSDwpgv193Ka+qRsmBY8Q=
+gotest.tools/v3 v3.5.2/go.mod h1:LtdLGcnqToBH83WByAAi/wiwSFCArdFIUV/xxN4pcjA=
 gvisor.dev/gvisor v0.0.0-20250205023644-9414b50a5633 h1:2gap+Kh/3F47cO6hAu3idFvsJ0ue6TRcEi2IUkv/F8k=
 gvisor.dev/gvisor v0.0.0-20250205023644-9414b50a5633/go.mod h1:5DMfjtclAbTIjbXqO1qCe2K5GKKxWz2JHvCChuTcJEM=
 honnef.co/go/tools v0.7.0-0.dev.0.20251022135355-8273271481d0 h1:5SXjd4ET5dYijLaf0O3aOenC0Z4ZafIWSpjUzsQaNho=
@@ -675,10 +686,12 @@ modernc.org/strutil v1.2.1 h1:UneZBkQA+DX2Rp35KcM69cSsNES9ly8mQWD71HKlOA0=
 modernc.org/strutil v1.2.1/go.mod h1:EHkiggD70koQxjVdSBM3JKM7k6L0FbGE5eymy9i3B9A=
 modernc.org/token v1.1.0 h1:Xl7Ap9dKaEs5kLoOQeQmPWevfnk/DM5qcLcYlA8ys6Y=
 modernc.org/token v1.1.0/go.mod h1:UGzOrNV1mAFSEB63lOFHIpNRUVMvYTc6yu1SMY/XTDM=
+pgregory.net/rapid v1.2.0 h1:keKAYRcjm+e1F0oAuU5F5+YPAWcyxNNRK2wud503Gnk=
+pgregory.net/rapid v1.2.0/go.mod h1:PY5XlDGj0+V1FCq0o192FdRhpKHGTRIWBgqjDBTrq04=
 software.sslmate.com/src/go-pkcs12 v0.4.0 h1:H2g08FrTvSFKUj+D309j1DPfk5APnIdAQAB8aEykJ5k=
 software.sslmate.com/src/go-pkcs12 v0.4.0/go.mod h1:Qiz0EyvDRJjjxGyUQa2cCNZn/wMyzrRJ/qcDXOQazLI=
-tailscale.com v1.94.0 h1:5oW3SF35aU9ekHDhP2J4CHewnA2NxE7SRilDB2pVjaA=
-tailscale.com v1.94.0/go.mod h1:gLnVrEOP32GWvroaAHHGhjSGMPJ1i4DvqNwEg+Yuov4=
+tailscale.com v1.94.1 h1:0dAst/ozTuFkgmxZULc3oNwR9+qPIt5ucvzH7kaM0Jw=
+tailscale.com v1.94.1/go.mod h1:gLnVrEOP32GWvroaAHHGhjSGMPJ1i4DvqNwEg+Yuov4=
 zgo.at/zcache/v2 v2.4.1 h1:Dfjoi8yI0Uq7NCc4lo2kaQJJmp9Mijo21gef+oJstbY=
 zgo.at/zcache/v2 v2.4.1/go.mod h1:gyCeoLVo01QjDZynjime8xUGHHMbsLiPyUTBpDGd4Gk=
 zombiezen.com/go/postgrestest v1.0.1 h1:aXoADQAJmZDU3+xilYVut0pHhgc0sF8ZspPW9gFNwP4=

hscontrol/app.go

@@ -20,7 +20,9 @@ import (
 
 	"github.com/cenkalti/backoff/v5"
 	"github.com/davecgh/go-spew/spew"
-	"github.com/gorilla/mux"
+	"github.com/go-chi/chi/v5"
+	"github.com/go-chi/chi/v5/middleware"
+	"github.com/go-chi/metrics"
 	grpcRuntime "github.com/grpc-ecosystem/grpc-gateway/v2/runtime"
 	"github.com/juanfont/headscale"
 	v1 "github.com/juanfont/headscale/gen/go/headscale/v1"
@@ -115,13 +117,14 @@ var (
 
 func NewHeadscale(cfg *types.Config) (*Headscale, error) {
 	var err error
+
 	if profilingEnabled {
 		runtime.SetBlockProfileRate(1)
 	}
 
 	noisePrivateKey, err := readOrCreatePrivateKey(cfg.NoisePrivateKeyPath)
 	if err != nil {
-		return nil, fmt.Errorf("failed to read or create Noise protocol private key: %w", err)
+		return nil, fmt.Errorf("reading or creating Noise protocol private key: %w", err)
 	}
 
 	s, err := state.NewState(cfg)
@@ -140,27 +143,30 @@ func NewHeadscale(cfg *types.Config) (*Headscale, error) {
 	ephemeralGC := db.NewEphemeralGarbageCollector(func(ni types.NodeID) {
 		node, ok := app.state.GetNodeByID(ni)
 		if !ok {
-			log.Error().Uint64("node.id", ni.Uint64()).Msg("Ephemeral node deletion failed")
-			log.Debug().Caller().Uint64("node.id", ni.Uint64()).Msg("Ephemeral node deletion failed because node not found in NodeStore")
+			log.Error().Uint64("node.id", ni.Uint64()).Msg("ephemeral node deletion failed")
+			log.Debug().Caller().Uint64("node.id", ni.Uint64()).Msg("ephemeral node deletion failed because node not found in NodeStore")
+
 			return
 		}
 
 		policyChanged, err := app.state.DeleteNode(node)
 		if err != nil {
-			log.Error().Err(err).Uint64("node.id", ni.Uint64()).Str("node.name", node.Hostname()).Msg("Ephemeral node deletion failed")
+			log.Error().Err(err).EmbedObject(node).Msg("ephemeral node deletion failed")
 			return
 		}
 
 		app.Change(policyChanged)
-		log.Debug().Caller().Uint64("node.id", ni.Uint64()).Str("node.name", node.Hostname()).Msg("Ephemeral node deleted because garbage collection timeout reached")
+		log.Debug().Caller().EmbedObject(node).Msg("ephemeral node deleted because garbage collection timeout reached")
 	})
 	app.ephemeralGC = ephemeralGC
 
 	var authProvider AuthProvider
+
 	authProvider = NewAuthProviderWeb(cfg.ServerURL)
 	if cfg.OIDC.Issuer != "" {
 		ctx, cancel := context.WithTimeout(context.Background(), 30*time.Second)
 		defer cancel()
+
 		oidcProvider, err := NewAuthProviderOIDC(
 			ctx,
 			&app,
@@ -177,17 +183,18 @@ func NewHeadscale(cfg *types.Config) (*Headscale, error) {
 			authProvider = oidcProvider
 		}
 	}
+
 	app.authProvider = authProvider
 
 	if app.cfg.TailcfgDNSConfig != nil && app.cfg.TailcfgDNSConfig.Proxied { // if MagicDNS
 		// TODO(kradalby): revisit why this takes a list.
-
 		var magicDNSDomains []dnsname.FQDN
 		if cfg.PrefixV4 != nil {
 			magicDNSDomains = append(
 				magicDNSDomains,
 				util.GenerateIPv4DNSRootDomain(*cfg.PrefixV4)...)
 		}
+
 		if cfg.PrefixV6 != nil {
 			magicDNSDomains = append(
 				magicDNSDomains,
@@ -198,6 +205,7 @@ func NewHeadscale(cfg *types.Config) (*Headscale, error) {
 		if app.cfg.TailcfgDNSConfig.Routes == nil {
 			app.cfg.TailcfgDNSConfig.Routes = make(map[string][]*dnstype.Resolver)
 		}
+
 		for _, d := range magicDNSDomains {
 			app.cfg.TailcfgDNSConfig.Routes[d.WithoutTrailingDot()] = nil
 		}
@@ -206,7 +214,7 @@ func NewHeadscale(cfg *types.Config) (*Headscale, error) {
 	if cfg.DERP.ServerEnabled {
 		derpServerKey, err := readOrCreatePrivateKey(cfg.DERP.ServerPrivateKeyPath)
 		if err != nil {
-			return nil, fmt.Errorf("failed to read or create DERP server private key: %w", err)
+			return nil, fmt.Errorf("reading or creating DERP server private key: %w", err)
 		}
 
 		if derpServerKey.Equal(*noisePrivateKey) {
@@ -232,6 +240,7 @@ func NewHeadscale(cfg *types.Config) (*Headscale, error) {
 		if err != nil {
 			return nil, err
 		}
+
 		app.DERPServer = embeddedDERPServer
 	}
 
@@ -251,9 +260,11 @@ func (h *Headscale) scheduledTasks(ctx context.Context) {
 	lastExpiryCheck := time.Unix(0, 0)
 
 	derpTickerChan := make(<-chan time.Time)
+
 	if h.cfg.DERP.AutoUpdate && h.cfg.DERP.UpdateFrequency != 0 {
 		derpTicker := time.NewTicker(h.cfg.DERP.UpdateFrequency)
 		defer derpTicker.Stop()
+
 		derpTickerChan = derpTicker.C
 	}
 
@@ -271,8 +282,10 @@ func (h *Headscale) scheduledTasks(ctx context.Context) {
 			return
 
 		case <-expireTicker.C:
-			var expiredNodeChanges []change.Change
-			var changed bool
+			var (
+				expiredNodeChanges []change.Change
+				changed            bool
+			)
 
 			lastExpiryCheck, expiredNodeChanges, changed = h.state.ExpireExpiredNodes(lastExpiryCheck)
 
@@ -286,12 +299,14 @@ func (h *Headscale) scheduledTasks(ctx context.Context) {
 			}
 
 		case <-derpTickerChan:
-			log.Info().Msg("Fetching DERPMap updates")
-			derpMap, err := backoff.Retry(ctx, func() (*tailcfg.DERPMap, error) {
+			log.Info().Msg("fetching DERPMap updates")
+
+			derpMap, err := backoff.Retry(ctx, func() (*tailcfg.DERPMap, error) { //nolint:contextcheck
 				derpMap, err := derp.GetDERPMap(h.cfg.DERP)
 				if err != nil {
 					return nil, err
 				}
+
 				if h.cfg.DERP.ServerEnabled && h.cfg.DERP.AutomaticallyAddEmbeddedDerpRegion {
 					region, _ := h.DERPServer.GenerateRegion()
 					derpMap.Regions[region.RegionID] = &region
@@ -303,6 +318,7 @@ func (h *Headscale) scheduledTasks(ctx context.Context) {
 				log.Error().Err(err).Msg("failed to build new DERPMap, retrying later")
 				continue
 			}
+
 			h.state.SetDERPMap(derpMap)
 
 			h.Change(change.DERPMap())
@@ -311,6 +327,7 @@ func (h *Headscale) scheduledTasks(ctx context.Context) {
 			if !ok {
 				continue
 			}
+
 			h.cfg.TailcfgDNSConfig.ExtraRecords = records
 
 			h.Change(change.ExtraRecords())
@@ -339,7 +356,7 @@ func (h *Headscale) grpcAuthenticationInterceptor(ctx context.Context,
 	if !ok {
 		return ctx, status.Errorf(
 			codes.InvalidArgument,
-			"Retrieving metadata is failed",
+			"retrieving metadata",
 		)
 	}
 
@@ -347,7 +364,7 @@ func (h *Headscale) grpcAuthenticationInterceptor(ctx context.Context,
 	if !ok {
 		return ctx, status.Errorf(
 			codes.Unauthenticated,
-			"Authorization token is not supplied",
+			"authorization token not supplied",
 		)
 	}
 
@@ -362,7 +379,7 @@ func (h *Headscale) grpcAuthenticationInterceptor(ctx context.Context,
 
 	valid, err := h.state.ValidateAPIKey(strings.TrimPrefix(token, AuthPrefix))
 	if err != nil {
-		return ctx, status.Error(codes.Internal, "failed to validate token")
+		return ctx, status.Error(codes.Internal, "validating token")
 	}
 
 	if !valid {
@@ -390,7 +407,8 @@ func (h *Headscale) httpAuthenticationMiddleware(next http.Handler) http.Handler
 
 		writeUnauthorized := func(statusCode int) {
 			writer.WriteHeader(statusCode)
-			if _, err := writer.Write([]byte("Unauthorized")); err != nil {
+
+			if _, err := writer.Write([]byte("Unauthorized")); err != nil { //nolint:noinlineerr
 				log.Error().Err(err).Msg("writing HTTP response failed")
 			}
 		}
@@ -401,6 +419,7 @@ func (h *Headscale) httpAuthenticationMiddleware(next http.Handler) http.Handler
 				Str("client_address", req.RemoteAddr).
 				Msg(`missing "Bearer " prefix in "Authorization" header`)
 			writeUnauthorized(http.StatusUnauthorized)
+
 			return
 		}
 
@@ -412,6 +431,7 @@ func (h *Headscale) httpAuthenticationMiddleware(next http.Handler) http.Handler
 				Str("client_address", req.RemoteAddr).
 				Msg("failed to validate token")
 			writeUnauthorized(http.StatusUnauthorized)
+
 			return
 		}
 
@@ -420,6 +440,7 @@ func (h *Headscale) httpAuthenticationMiddleware(next http.Handler) http.Handler
 				Str("client_address", req.RemoteAddr).
 				Msg("invalid token")
 			writeUnauthorized(http.StatusUnauthorized)
+
 			return
 		}
 
@@ -431,61 +452,73 @@ func (h *Headscale) httpAuthenticationMiddleware(next http.Handler) http.Handler
 // and will remove it if it is not.
 func (h *Headscale) ensureUnixSocketIsAbsent() error {
 	// File does not exist, all fine
-	if _, err := os.Stat(h.cfg.UnixSocket); errors.Is(err, os.ErrNotExist) {
+	if _, err := os.Stat(h.cfg.UnixSocket); errors.Is(err, os.ErrNotExist) { //nolint:noinlineerr
 		return nil
 	}
 
 	return os.Remove(h.cfg.UnixSocket)
 }
 
-func (h *Headscale) createRouter(grpcMux *grpcRuntime.ServeMux) *mux.Router {
-	router := mux.NewRouter()
-	router.Use(prometheusMiddleware)
+func (h *Headscale) createRouter(grpcMux *grpcRuntime.ServeMux) *chi.Mux {
+	r := chi.NewRouter()
+	r.Use(metrics.Collector(metrics.CollectorOpts{
+		Host:  false,
+		Proto: true,
+		Skip: func(r *http.Request) bool {
+			return r.Method != http.MethodOptions
+		},
+	}))
+	r.Use(middleware.RequestID)
+	r.Use(middleware.RealIP)
+	r.Use(middleware.RequestLogger(&zerologRequestLogger{}))
+	r.Use(middleware.Recoverer)
 
-	router.HandleFunc(ts2021UpgradePath, h.NoiseUpgradeHandler).
-		Methods(http.MethodPost, http.MethodGet)
+	r.Post(ts2021UpgradePath, h.NoiseUpgradeHandler)
 
-	router.HandleFunc("/robots.txt", h.RobotsHandler).Methods(http.MethodGet)
-	router.HandleFunc("/health", h.HealthHandler).Methods(http.MethodGet)
-	router.HandleFunc("/version", h.VersionHandler).Methods(http.MethodGet)
-	router.HandleFunc("/key", h.KeyHandler).Methods(http.MethodGet)
-	router.HandleFunc("/register/{registration_id}", h.authProvider.RegisterHandler).
-		Methods(http.MethodGet)
+	r.Get("/robots.txt", h.RobotsHandler)
+	r.Get("/health", h.HealthHandler)
+	r.Get("/version", h.VersionHandler)
+	r.Get("/key", h.KeyHandler)
+	r.Get("/register/{auth_id}", h.authProvider.RegisterHandler)
+	r.Get("/auth/{auth_id}", h.authProvider.AuthHandler)
 
 	if provider, ok := h.authProvider.(*AuthProviderOIDC); ok {
-		router.HandleFunc("/oidc/callback", provider.OIDCCallbackHandler).Methods(http.MethodGet)
+		r.Get("/oidc/callback", provider.OIDCCallbackHandler)
 	}
-	router.HandleFunc("/apple", h.AppleConfigMessage).Methods(http.MethodGet)
-	router.HandleFunc("/apple/{platform}", h.ApplePlatformConfig).
-		Methods(http.MethodGet)
-	router.HandleFunc("/windows", h.WindowsConfigMessage).Methods(http.MethodGet)
+
+	r.Get("/apple", h.AppleConfigMessage)
+	r.Get("/apple/{platform}", h.ApplePlatformConfig)
+	r.Get("/windows", h.WindowsConfigMessage)
 
 	// TODO(kristoffer): move swagger into a package
-	router.HandleFunc("/swagger", headscale.SwaggerUI).Methods(http.MethodGet)
-	router.HandleFunc("/swagger/v1/openapiv2.json", headscale.SwaggerAPIv1).
-		Methods(http.MethodGet)
+	r.Get("/swagger", headscale.SwaggerUI)
+	r.Get("/swagger/v1/openapiv2.json", headscale.SwaggerAPIv1)
 
-	router.HandleFunc("/verify", h.VerifyHandler).Methods(http.MethodPost)
+	r.Post("/verify", h.VerifyHandler)
 
 	if h.cfg.DERP.ServerEnabled {
-		router.HandleFunc("/derp", h.DERPServer.DERPHandler)
-		router.HandleFunc("/derp/probe", derpServer.DERPProbeHandler)
-		router.HandleFunc("/derp/latency-check", derpServer.DERPProbeHandler)
-		router.HandleFunc("/bootstrap-dns", derpServer.DERPBootstrapDNSHandler(h.state.DERPMap()))
+		r.HandleFunc("/derp", h.DERPServer.DERPHandler)
+		r.HandleFunc("/derp/probe", derpServer.DERPProbeHandler)
+		r.HandleFunc("/derp/latency-check", derpServer.DERPProbeHandler)
+		r.HandleFunc("/bootstrap-dns", derpServer.DERPBootstrapDNSHandler(h.state.DERPMap()))
 	}
 
-	apiRouter := router.PathPrefix("/api").Subrouter()
-	apiRouter.Use(h.httpAuthenticationMiddleware)
-	apiRouter.PathPrefix("/v1/").HandlerFunc(grpcMux.ServeHTTP)
-	router.HandleFunc("/favicon.ico", FaviconHandler)
-	router.PathPrefix("/").HandlerFunc(BlankHandler)
+	r.Route("/api", func(r chi.Router) {
+		r.Use(h.httpAuthenticationMiddleware)
+		r.HandleFunc("/v1/*", grpcMux.ServeHTTP)
+	})
+	r.Get("/favicon.ico", FaviconHandler)
+	r.Get("/", BlankHandler)
 
-	return router
+	return r
 }
 
 // Serve launches the HTTP and gRPC server service Headscale and the API.
+//
+//nolint:gocyclo // complex server startup function
 func (h *Headscale) Serve() error {
 	var err error
+
 	capver.CanOldCodeBeCleanedUp()
 
 	if profilingEnabled {
@@ -506,12 +539,13 @@ func (h *Headscale) Serve() error {
 	}
 
 	versionInfo := types.GetVersionInfo()
-	log.Info().Str("version", versionInfo.Version).Str("commit", versionInfo.Commit).Msg("Starting Headscale")
+	log.Info().Str("version", versionInfo.Version).Str("commit", versionInfo.Commit).Msg("starting headscale")
 	log.Info().
 		Str("minimum_version", capver.TailscaleVersion(capver.MinSupportedCapabilityVersion)).
 		Msg("Clients with a lower minimum version will be rejected")
 
 	h.mapBatcher = mapper.NewBatcherAndMapper(h.cfg, h.state)
+
 	h.mapBatcher.Start()
 	defer h.mapBatcher.Close()
 
@@ -526,7 +560,7 @@ func (h *Headscale) Serve() error {
 
 	derpMap, err := derp.GetDERPMap(h.cfg.DERP)
 	if err != nil {
-		return fmt.Errorf("failed to get DERPMap: %w", err)
+		return fmt.Errorf("getting DERPMap: %w", err)
 	}
 
 	if h.cfg.DERP.ServerEnabled && h.cfg.DERP.AutomaticallyAddEmbeddedDerpRegion {
@@ -545,6 +579,7 @@ func (h *Headscale) Serve() error {
 	// around between restarts, they will reconnect and the GC will
 	// be cancelled.
 	go h.ephemeralGC.Start()
+
 	ephmNodes := h.state.ListEphemeralNodes()
 	for _, node := range ephmNodes.All() {
 		h.ephemeralGC.Schedule(node.ID(), h.cfg.EphemeralNodeInactivityTimeout)
@@ -555,7 +590,9 @@ func (h *Headscale) Serve() error {
 		if err != nil {
 			return fmt.Errorf("setting up extrarecord manager: %w", err)
 		}
+
 		h.cfg.TailcfgDNSConfig.ExtraRecords = h.extraRecordMan.Records()
+
 		go h.extraRecordMan.Run()
 		defer h.extraRecordMan.Close()
 	}
@@ -564,6 +601,7 @@ func (h *Headscale) Serve() error {
 	// records updates
 	scheduleCtx, scheduleCancel := context.WithCancel(context.Background())
 	defer scheduleCancel()
+
 	go h.scheduledTasks(scheduleCtx)
 
 	if zl.GlobalLevel() == zl.TraceLevel {
@@ -576,6 +614,7 @@ func (h *Headscale) Serve() error {
 	errorGroup := new(errgroup.Group)
 
 	ctx := context.Background()
+
 	ctx, cancel := context.WithCancel(ctx)
 	defer cancel()
 
@@ -586,29 +625,30 @@ func (h *Headscale) Serve() error {
 
 	err = h.ensureUnixSocketIsAbsent()
 	if err != nil {
-		return fmt.Errorf("unable to remove old socket file: %w", err)
+		return fmt.Errorf("removing old socket file: %w", err)
 	}
 
 	socketDir := filepath.Dir(h.cfg.UnixSocket)
+
 	err = util.EnsureDir(socketDir)
 	if err != nil {
 		return fmt.Errorf("setting up unix socket: %w", err)
 	}
 
-	socketListener, err := net.Listen("unix", h.cfg.UnixSocket)
+	socketListener, err := new(net.ListenConfig).Listen(context.Background(), "unix", h.cfg.UnixSocket)
 	if err != nil {
-		return fmt.Errorf("failed to set up gRPC socket: %w", err)
+		return fmt.Errorf("setting up gRPC socket: %w", err)
 	}
 
 	// Change socket permissions
-	if err := os.Chmod(h.cfg.UnixSocket, h.cfg.UnixSocketPermission); err != nil {
-		return fmt.Errorf("failed change permission of gRPC socket: %w", err)
+	if err := os.Chmod(h.cfg.UnixSocket, h.cfg.UnixSocketPermission); err != nil { //nolint:noinlineerr
+		return fmt.Errorf("changing gRPC socket permission: %w", err)
 	}
 
 	grpcGatewayMux := grpcRuntime.NewServeMux()
 
 	// Make the grpc-gateway connect to grpc over socket
-	grpcGatewayConn, err := grpc.Dial(
+	grpcGatewayConn, err := grpc.Dial( //nolint:staticcheck // SA1019: deprecated but supported in 1.x
 		h.cfg.UnixSocket,
 		[]grpc.DialOption{
 			grpc.WithTransportCredentials(insecure.NewCredentials()),
@@ -659,10 +699,13 @@ func (h *Headscale) Serve() error {
 	// https://github.com/soheilhy/cmux/issues/68
 	// https://github.com/soheilhy/cmux/issues/91
 
-	var grpcServer *grpc.Server
-	var grpcListener net.Listener
+	var (
+		grpcServer   *grpc.Server
+		grpcListener net.Listener
+	)
+
 	if tlsConfig != nil || h.cfg.GRPCAllowInsecure {
-		log.Info().Msgf("Enabling remote gRPC at %s", h.cfg.GRPCAddr)
+		log.Info().Msgf("enabling remote gRPC at %s", h.cfg.GRPCAddr)
 
 		grpcOptions := []grpc.ServerOption{
 			grpc.ChainUnaryInterceptor(
@@ -685,9 +728,9 @@ func (h *Headscale) Serve() error {
 		v1.RegisterHeadscaleServiceServer(grpcServer, newHeadscaleV1APIServer(h))
 		reflection.Register(grpcServer)
 
-		grpcListener, err = net.Listen("tcp", h.cfg.GRPCAddr)
+		grpcListener, err = new(net.ListenConfig).Listen(context.Background(), "tcp", h.cfg.GRPCAddr)
 		if err != nil {
-			return fmt.Errorf("failed to bind to TCP address: %w", err)
+			return fmt.Errorf("binding to TCP address: %w", err)
 		}
 
 		errorGroup.Go(func() error { return grpcServer.Serve(grpcListener) })
@@ -715,14 +758,16 @@ func (h *Headscale) Serve() error {
 	}
 
 	var httpListener net.Listener
+
 	if tlsConfig != nil {
 		httpServer.TLSConfig = tlsConfig
 		httpListener, err = tls.Listen("tcp", h.cfg.Addr, tlsConfig)
 	} else {
-		httpListener, err = net.Listen("tcp", h.cfg.Addr)
+		httpListener, err = new(net.ListenConfig).Listen(context.Background(), "tcp", h.cfg.Addr)
 	}
+
 	if err != nil {
-		return fmt.Errorf("failed to bind to TCP address: %w", err)
+		return fmt.Errorf("binding to TCP address: %w", err)
 	}
 
 	errorGroup.Go(func() error { return httpServer.Serve(httpListener) })
@@ -738,7 +783,7 @@ func (h *Headscale) Serve() error {
 	if h.cfg.MetricsAddr != "" {
 		debugHTTPListener, err = (&net.ListenConfig{}).Listen(ctx, "tcp", h.cfg.MetricsAddr)
 		if err != nil {
-			return fmt.Errorf("failed to bind to TCP address: %w", err)
+			return fmt.Errorf("binding to TCP address: %w", err)
 		}
 
 		debugHTTPServer = h.debugHTTPServer()
@@ -751,19 +796,24 @@ func (h *Headscale) Serve() error {
 		log.Info().Msg("metrics server disabled (metrics_listen_addr is empty)")
 	}
 
-
 	var tailsqlContext context.Context
+
 	if tailsqlEnabled {
 		if h.cfg.Database.Type != types.DatabaseSqlite {
+			//nolint:gocritic // exitAfterDefer: Fatal exits during initialization before servers start
 			log.Fatal().
 				Str("type", h.cfg.Database.Type).
 				Msgf("tailsql only support %q", types.DatabaseSqlite)
 		}
+
 		if tailsqlTSKey == "" {
+			//nolint:gocritic // exitAfterDefer: Fatal exits during initialization before servers start
 			log.Fatal().Msg("tailsql requires TS_AUTHKEY to be set")
 		}
+
 		tailsqlContext = context.Background()
-		go runTailSQLService(ctx, util.TSLogfWrapper(), tailsqlStateDir, h.cfg.Database.Sqlite.Path)
+
+		go runTailSQLService(ctx, util.TSLogfWrapper(), tailsqlStateDir, h.cfg.Database.Sqlite.Path) //nolint:errcheck
 	}
 
 	// Handle common process-killing signals so we can gracefully shut down:
@@ -774,6 +824,7 @@ func (h *Headscale) Serve() error {
 		syscall.SIGTERM,
 		syscall.SIGQUIT,
 		syscall.SIGHUP)
+
 	sigFunc := func(c chan os.Signal) {
 		// Wait for a SIGINT or SIGKILL:
 		for {
@@ -798,6 +849,7 @@ func (h *Headscale) Serve() error {
 
 			default:
 				info := func(msg string) { log.Info().Msg(msg) }
+
 				log.Info().
 					Str("signal", sig.String()).
 					Msg("Received signal to stop, shutting down gracefully")
@@ -854,6 +906,7 @@ func (h *Headscale) Serve() error {
 				if debugHTTPListener != nil {
 					debugHTTPListener.Close()
 				}
+
 				httpListener.Close()
 				grpcGatewayConn.Close()
 
@@ -863,6 +916,7 @@ func (h *Headscale) Serve() error {
 
 				// Close state connections
 				info("closing state and database")
+
 				err = h.state.Close()
 				if err != nil {
 					log.Error().Err(err).Msg("failed to close state")
@@ -875,6 +929,7 @@ func (h *Headscale) Serve() error {
 			}
 		}
 	}
+
 	errorGroup.Go(func() error {
 		sigFunc(sigc)
 
@@ -886,6 +941,7 @@ func (h *Headscale) Serve() error {
 
 func (h *Headscale) getTLSSettings() (*tls.Config, error) {
 	var err error
+
 	if h.cfg.TLS.LetsEncrypt.Hostname != "" {
 		if !strings.HasPrefix(h.cfg.ServerURL, "https://") {
 			log.Warn().
@@ -918,7 +974,6 @@ func (h *Headscale) getTLSSettings() (*tls.Config, error) {
 			// Configuration via autocert with HTTP-01. This requires listening on
 			// port 80 for the certificate validation in addition to the headscale
 			// service, which can be configured to run on any other port.
-
 			server := &http.Server{
 				Addr:        h.cfg.TLS.LetsEncrypt.Listen,
 				Handler:     certManager.HTTPHandler(http.HandlerFunc(h.redirect)),
@@ -940,13 +995,13 @@ func (h *Headscale) getTLSSettings() (*tls.Config, error) {
 		}
 	} else if h.cfg.TLS.CertPath == "" {
 		if !strings.HasPrefix(h.cfg.ServerURL, "http://") {
-			log.Warn().Msg("Listening without TLS but ServerURL does not start with http://")
+			log.Warn().Msg("listening without TLS but ServerURL does not start with http://")
 		}
 
 		return nil, err
 	} else {
 		if !strings.HasPrefix(h.cfg.ServerURL, "https://") {
-			log.Warn().Msg("Listening with TLS but ServerURL does not start with https://")
+			log.Warn().Msg("listening with TLS but ServerURL does not start with https://")
 		}
 
 		tlsConfig := &tls.Config{
@@ -963,6 +1018,7 @@ func (h *Headscale) getTLSSettings() (*tls.Config, error) {
 
 func readOrCreatePrivateKey(path string) (*key.MachinePrivate, error) {
 	dir := filepath.Dir(path)
+
 	err := util.EnsureDir(dir)
 	if err != nil {
 		return nil, fmt.Errorf("ensuring private key directory: %w", err)
@@ -970,21 +1026,22 @@ func readOrCreatePrivateKey(path string) (*key.MachinePrivate, error) {
 
 	privateKey, err := os.ReadFile(path)
 	if errors.Is(err, os.ErrNotExist) {
-		log.Info().Str("path", path).Msg("No private key file at path, creating...")
+		log.Info().Str("path", path).Msg("no private key file at path, creating...")
 
 		machineKey := key.NewMachine()
 
 		machineKeyStr, err := machineKey.MarshalText()
 		if err != nil {
 			return nil, fmt.Errorf(
-				"failed to convert private key to string for saving: %w",
+				"converting private key to string for saving: %w",
 				err,
 			)
 		}
+
 		err = os.WriteFile(path, machineKeyStr, privateKeyFileMode)
 		if err != nil {
 			return nil, fmt.Errorf(
-				"failed to save private key to disk at path %q: %w",
+				"saving private key to disk at path %q: %w",
 				path,
 				err,
 			)
@@ -992,14 +1049,14 @@ func readOrCreatePrivateKey(path string) (*key.MachinePrivate, error) {
 
 		return &machineKey, nil
 	} else if err != nil {
-		return nil, fmt.Errorf("failed to read private key file: %w", err)
+		return nil, fmt.Errorf("reading private key file: %w", err)
 	}
 
 	trimmedPrivateKey := strings.TrimSpace(string(privateKey))
 
 	var machineKey key.MachinePrivate
-	if err = machineKey.UnmarshalText([]byte(trimmedPrivateKey)); err != nil {
-		return nil, fmt.Errorf("failed to parse private key: %w", err)
+	if err = machineKey.UnmarshalText([]byte(trimmedPrivateKey)); err != nil { //nolint:noinlineerr
+		return nil, fmt.Errorf("parsing private key: %w", err)
 	}
 
 	return &machineKey, nil
@@ -1023,7 +1080,7 @@ type acmeLogger struct {
 func (l *acmeLogger) RoundTrip(req *http.Request) (*http.Response, error) {
 	resp, err := l.rt.RoundTrip(req)
 	if err != nil {
-		log.Error().Err(err).Str("url", req.URL.String()).Msg("ACME request failed")
+		log.Error().Err(err).Str("url", req.URL.String()).Msg("acme request failed")
 		return nil, err
 	}
 
@@ -1031,8 +1088,57 @@ func (l *acmeLogger) RoundTrip(req *http.Request) (*http.Response, error) {
 		defer resp.Body.Close()
 
 		body, _ := io.ReadAll(resp.Body)
-		log.Error().Int("status_code", resp.StatusCode).Str("url", req.URL.String()).Bytes("body", body).Msg("ACME request returned error")
+		log.Error().Int("status_code", resp.StatusCode).Str("url", req.URL.String()).Bytes("body", body).Msg("acme request returned error")
 	}
 
 	return resp, nil
 }
+
+// zerologRequestLogger implements chi's middleware.LogFormatter
+// to route HTTP request logs through zerolog.
+type zerologRequestLogger struct{}
+
+func (z *zerologRequestLogger) NewLogEntry(
+	r *http.Request,
+) middleware.LogEntry {
+	return &zerologLogEntry{
+		method: r.Method,
+		path:   r.URL.Path,
+		proto:  r.Proto,
+		remote: r.RemoteAddr,
+	}
+}
+
+type zerologLogEntry struct {
+	method string
+	path   string
+	proto  string
+	remote string
+}
+
+func (e *zerologLogEntry) Write(
+	status, bytes int,
+	header http.Header,
+	elapsed time.Duration,
+	extra any,
+) {
+	log.Info().
+		Str("method", e.method).
+		Str("path", e.path).
+		Str("proto", e.proto).
+		Str("remote", e.remote).
+		Int("status", status).
+		Int("bytes", bytes).
+		Dur("elapsed", elapsed).
+		Msg("http request")
+}
+
+func (e *zerologLogEntry) Panic(
+	v any,
+	stack []byte,
+) {
+	log.Error().
+		Interface("panic", v).
+		Bytes("stack", stack).
+		Msg("http handler panic")
+}

hscontrol/auth.go

@@ -16,12 +16,13 @@ import (
 	"gorm.io/gorm"
 	"tailscale.com/tailcfg"
 	"tailscale.com/types/key"
-	"tailscale.com/types/ptr"
 )
 
 type AuthProvider interface {
-	RegisterHandler(http.ResponseWriter, *http.Request)
-	AuthURL(types.RegistrationID) string
+	RegisterHandler(w http.ResponseWriter, r *http.Request)
+	AuthHandler(w http.ResponseWriter, r *http.Request)
+	RegisterURL(authID types.AuthID) string
+	AuthURL(authID types.AuthID) string
 }
 
 func (h *Headscale) handleRegister(
@@ -42,8 +43,7 @@ func (h *Headscale) handleRegister(
 		// This is a logout attempt (expiry in the past)
 		if node, ok := h.state.GetNodeByNodeKey(req.NodeKey); ok {
 			log.Debug().
-				Uint64("node.id", node.ID().Uint64()).
-				Str("node.name", node.Hostname()).
+				EmbedObject(node).
 				Bool("is_ephemeral", node.IsEphemeral()).
 				Bool("has_authkey", node.AuthKey().Valid()).
 				Msg("Found existing node for logout, calling handleLogout")
@@ -52,6 +52,7 @@ func (h *Headscale) handleRegister(
 			if err != nil {
 				return nil, fmt.Errorf("handling logout: %w", err)
 			}
+
 			if resp != nil {
 				return resp, nil
 			}
@@ -113,8 +114,7 @@ func (h *Headscale) handleRegister(
 		resp, err := h.handleRegisterWithAuthKey(req, machineKey)
 		if err != nil {
 			// Preserve HTTPError types so they can be handled properly by the HTTP layer
-			var httpErr HTTPError
-			if errors.As(err, &httpErr) {
+			if httpErr, ok := errors.AsType[HTTPError](err); ok {
 				return nil, httpErr
 			}
 
@@ -133,7 +133,7 @@ func (h *Headscale) handleRegister(
 }
 
 // handleLogout checks if the [tailcfg.RegisterRequest] is a
-// logout attempt from a node. If the node is not attempting to
+// logout attempt from a node. If the node is not attempting to.
 func (h *Headscale) handleLogout(
 	node types.NodeView,
 	req tailcfg.RegisterRequest,
@@ -155,11 +155,12 @@ func (h *Headscale) handleLogout(
 	// force the client to re-authenticate.
 	// TODO(kradalby): I wonder if this is a path we ever hit?
 	if node.IsExpired() {
-		log.Trace().Str("node.name", node.Hostname()).
-			Uint64("node.id", node.ID().Uint64()).
+		log.Trace().
+			EmbedObject(node).
 			Interface("reg.req", req).
 			Bool("unexpected", true).
 			Msg("Node key expired, forcing re-authentication")
+
 		return &tailcfg.RegisterResponse{
 			NodeKeyExpired:    true,
 			MachineAuthorized: false,
@@ -182,8 +183,7 @@ func (h *Headscale) handleLogout(
 	// Zero expiry is handled in handleRegister() before calling this function.
 	if req.Expiry.Before(time.Now()) {
 		log.Debug().
-			Uint64("node.id", node.ID().Uint64()).
-			Str("node.name", node.Hostname()).
+			EmbedObject(node).
 			Bool("is_ephemeral", node.IsEphemeral()).
 			Bool("has_authkey", node.AuthKey().Valid()).
 			Time("req.expiry", req.Expiry).
@@ -191,8 +191,7 @@ func (h *Headscale) handleLogout(
 
 		if node.IsEphemeral() {
 			log.Info().
-				Uint64("node.id", node.ID().Uint64()).
-				Str("node.name", node.Hostname()).
+				EmbedObject(node).
 				Msg("Deleting ephemeral node during logout")
 
 			c, err := h.state.DeleteNode(node)
@@ -209,14 +208,15 @@ func (h *Headscale) handleLogout(
 		}
 
 		log.Debug().
-			Uint64("node.id", node.ID().Uint64()).
-			Str("node.name", node.Hostname()).
+			EmbedObject(node).
 			Msg("Node is not ephemeral, setting expiry instead of deleting")
 	}
 
 	// Update the internal state with the nodes new expiry, meaning it is
 	// logged out.
-	updatedNode, c, err := h.state.SetNodeExpiry(node.ID(), req.Expiry)
+	expiry := req.Expiry
+
+	updatedNode, c, err := h.state.SetNodeExpiry(node.ID(), &expiry)
 	if err != nil {
 		return nil, fmt.Errorf("setting node expiry: %w", err)
 	}
@@ -265,21 +265,24 @@ func (h *Headscale) waitForFollowup(
 		return nil, NewHTTPError(http.StatusUnauthorized, "invalid followup URL", err)
 	}
 
-	followupReg, err := types.RegistrationIDFromString(strings.ReplaceAll(fu.Path, "/register/", ""))
+	followupReg, err := types.AuthIDFromString(strings.ReplaceAll(fu.Path, "/register/", ""))
 	if err != nil {
 		return nil, NewHTTPError(http.StatusUnauthorized, "invalid registration ID", err)
 	}
 
-	if reg, ok := h.state.GetRegistrationCacheEntry(followupReg); ok {
+	if reg, ok := h.state.GetAuthCacheEntry(followupReg); ok {
 		select {
 		case <-ctx.Done():
 			return nil, NewHTTPError(http.StatusUnauthorized, "registration timed out", err)
-		case node := <-reg.Registered:
-			if node == nil {
-				// registration is expired in the cache, instruct the client to try a new registration
-				return h.reqToNewRegisterResponse(req, machineKey)
+		case verdict := <-reg.WaitForAuth():
+			if verdict.Accept() {
+				if !verdict.Node.Valid() {
+					// registration is expired in the cache, instruct the client to try a new registration
+					return h.reqToNewRegisterResponse(req, machineKey)
+				}
+
+				return nodeToRegisterResponse(verdict.Node), nil
 			}
-			return nodeToRegisterResponse(node.View()), nil
 		}
 	}
 
@@ -294,14 +297,14 @@ func (h *Headscale) reqToNewRegisterResponse(
 	req tailcfg.RegisterRequest,
 	machineKey key.MachinePublic,
 ) (*tailcfg.RegisterResponse, error) {
-	newRegID, err := types.NewRegistrationID()
+	newAuthID, err := types.NewAuthID()
 	if err != nil {
 		return nil, NewHTTPError(http.StatusInternalServerError, "failed to generate registration ID", err)
 	}
 
 	// Ensure we have a valid hostname
 	hostname := util.EnsureHostname(
-		req.Hostinfo,
+		req.Hostinfo.View(),
 		machineKey.String(),
 		req.NodeKey.String(),
 	)
@@ -310,25 +313,25 @@ func (h *Headscale) reqToNewRegisterResponse(
 	hostinfo := cmp.Or(req.Hostinfo, &tailcfg.Hostinfo{})
 	hostinfo.Hostname = hostname
 
-	nodeToRegister := types.NewRegisterNode(
-		types.Node{
-			Hostname:   hostname,
-			MachineKey: machineKey,
-			NodeKey:    req.NodeKey,
-			Hostinfo:   hostinfo,
-			LastSeen:   ptr.To(time.Now()),
-		},
-	)
-
-	if !req.Expiry.IsZero() {
-		nodeToRegister.Node.Expiry = &req.Expiry
+	nodeToRegister := types.Node{
+		Hostname:   hostname,
+		MachineKey: machineKey,
+		NodeKey:    req.NodeKey,
+		Hostinfo:   hostinfo,
+		LastSeen:   new(time.Now()),
 	}
 
-	log.Info().Msgf("New followup node registration using key: %s", newRegID)
-	h.state.SetRegistrationCacheEntry(newRegID, nodeToRegister)
+	if !req.Expiry.IsZero() {
+		nodeToRegister.Expiry = &req.Expiry
+	}
+
+	authRegReq := types.NewRegisterAuthRequest(nodeToRegister)
+
+	log.Info().Msgf("new followup node registration using auth id: %s", newAuthID)
+	h.state.SetAuthCacheEntry(newAuthID, authRegReq)
 
 	return &tailcfg.RegisterResponse{
-		AuthURL: h.authProvider.AuthURL(newRegID),
+		AuthURL: h.authProvider.RegisterURL(newAuthID),
 	}, nil
 }
 
@@ -344,8 +347,8 @@ func (h *Headscale) handleRegisterWithAuthKey(
 		if errors.Is(err, gorm.ErrRecordNotFound) {
 			return nil, NewHTTPError(http.StatusUnauthorized, "invalid pre auth key", nil)
 		}
-		var perr types.PAKError
-		if errors.As(err, &perr) {
+
+		if perr, ok := errors.AsType[types.PAKError](err); ok {
 			return nil, NewHTTPError(http.StatusUnauthorized, perr.Error(), nil)
 		}
 
@@ -355,7 +358,7 @@ func (h *Headscale) handleRegisterWithAuthKey(
 	// If node is not valid, it means an ephemeral node was deleted during logout
 	if !node.Valid() {
 		h.Change(changed)
-		return nil, nil
+		return nil, nil //nolint:nilnil // intentional: no node to return when ephemeral deleted
 	}
 
 	// This is a bit of a back and forth, but we have a bit of a chicken and egg
@@ -379,13 +382,6 @@ func (h *Headscale) handleRegisterWithAuthKey(
 	// Send both changes. Empty changes are ignored by Change().
 	h.Change(changed, routesChange)
 
-	// TODO(kradalby): I think this is covered above, but we need to validate that.
-	// // If policy changed due to node registration, send a separate policy change
-	// if policyChanged {
-	// 	policyChange := change.PolicyChange()
-	// 	h.Change(policyChange)
-	// }
-
 	resp := &tailcfg.RegisterResponse{
 		MachineAuthorized: true,
 		NodeKeyExpired:    node.IsExpired(),
@@ -397,8 +393,7 @@ func (h *Headscale) handleRegisterWithAuthKey(
 		Caller().
 		Interface("reg.resp", resp).
 		Interface("reg.req", req).
-		Str("node.name", node.Hostname()).
-		Uint64("node.id", node.ID().Uint64()).
+		EmbedObject(node).
 		Msg("RegisterResponse")
 
 	return resp, nil
@@ -408,14 +403,14 @@ func (h *Headscale) handleRegisterInteractive(
 	req tailcfg.RegisterRequest,
 	machineKey key.MachinePublic,
 ) (*tailcfg.RegisterResponse, error) {
-	registrationId, err := types.NewRegistrationID()
+	authID, err := types.NewAuthID()
 	if err != nil {
 		return nil, fmt.Errorf("generating registration ID: %w", err)
 	}
 
 	// Ensure we have a valid hostname
 	hostname := util.EnsureHostname(
-		req.Hostinfo,
+		req.Hostinfo.View(),
 		machineKey.String(),
 		req.NodeKey.String(),
 	)
@@ -435,30 +430,31 @@ func (h *Headscale) handleRegisterInteractive(
 			Str("generated.hostname", hostname).
 			Msg("Received registration request with empty hostname, generated default")
 	}
+
 	hostinfo.Hostname = hostname
 
-	nodeToRegister := types.NewRegisterNode(
-		types.Node{
-			Hostname:   hostname,
-			MachineKey: machineKey,
-			NodeKey:    req.NodeKey,
-			Hostinfo:   hostinfo,
-			LastSeen:   ptr.To(time.Now()),
-		},
-	)
-
-	if !req.Expiry.IsZero() {
-		nodeToRegister.Node.Expiry = &req.Expiry
+	nodeToRegister := types.Node{
+		Hostname:   hostname,
+		MachineKey: machineKey,
+		NodeKey:    req.NodeKey,
+		Hostinfo:   hostinfo,
+		LastSeen:   new(time.Now()),
 	}
 
-	h.state.SetRegistrationCacheEntry(
-		registrationId,
-		nodeToRegister,
+	if !req.Expiry.IsZero() {
+		nodeToRegister.Expiry = &req.Expiry
+	}
+
+	authRegReq := types.NewRegisterAuthRequest(nodeToRegister)
+
+	h.state.SetAuthCacheEntry(
+		authID,
+		authRegReq,
 	)
 
-	log.Info().Msgf("Starting node registration using key: %s", registrationId)
+	log.Info().Msgf("starting node registration using auth id: %s", authID)
 
 	return &tailcfg.RegisterResponse{
-		AuthURL: h.authProvider.AuthURL(registrationId),
+		AuthURL: h.authProvider.RegisterURL(authID),
 	}, nil
 }

hscontrol/auth_tags_test.go

@@ -14,7 +14,7 @@ import (
 // TestTaggedPreAuthKeyCreatesTaggedNode tests that a PreAuthKey with tags creates
 // a tagged node with:
 // - Tags from the PreAuthKey
-// - UserID tracking who created the key (informational "created by")
+// - Nil UserID (tagged nodes are owned by tags, not a user)
 // - IsTagged() returns true.
 func TestTaggedPreAuthKeyCreatesTaggedNode(t *testing.T) {
 	app := createTestApp(t)
@@ -51,11 +51,10 @@ func TestTaggedPreAuthKeyCreatesTaggedNode(t *testing.T) {
 	node, found := app.state.GetNodeByNodeKey(nodeKey.Public())
 	require.True(t, found)
 
-	// Critical assertions for tags-as-identity model
+	// Tagged nodes are owned by their tags, not a user.
 	assert.True(t, node.IsTagged(), "Node should be tagged")
 	assert.ElementsMatch(t, tags, node.Tags().AsSlice(), "Node should have tags from PreAuthKey")
-	assert.True(t, node.UserID().Valid(), "Node should have UserID tracking creator")
-	assert.Equal(t, user.ID, node.UserID().Get(), "UserID should track PreAuthKey creator")
+	assert.False(t, node.UserID().Valid(), "Tagged node should not have UserID")
 
 	// Verify node is identified correctly
 	assert.True(t, node.IsTagged(), "Tagged node is not user-owned")
@@ -129,9 +128,10 @@ func TestReAuthDoesNotReapplyTags(t *testing.T) {
 	assert.True(t, nodeAfterReauth.IsTagged(), "Node should still be tagged")
 	assert.ElementsMatch(t, initialTags, nodeAfterReauth.Tags().AsSlice(), "Tags should remain unchanged on re-auth")
 
-	// Verify only one node was created (no duplicates)
-	nodes := app.state.ListNodesByUser(types.UserID(user.ID))
-	assert.Equal(t, 1, nodes.Len(), "Should have exactly one node")
+	// Verify only one node was created (no duplicates).
+	// Tagged nodes are not indexed by user, so check the global list.
+	allNodes := app.state.ListNodes()
+	assert.Equal(t, 1, allNodes.Len(), "Should have exactly one node")
 }
 
 // NOTE: TestSetTagsOnUserOwnedNode functionality is covered by gRPC tests in grpcv1_test.go
@@ -294,13 +294,13 @@ func TestMultipleNodesWithSameReusableTaggedPreAuthKey(t *testing.T) {
 	assert.ElementsMatch(t, tags, node1.Tags().AsSlice(), "First node should have PreAuthKey tags")
 	assert.ElementsMatch(t, tags, node2.Tags().AsSlice(), "Second node should have PreAuthKey tags")
 
-	// Both nodes should track the same creator
-	assert.Equal(t, user.ID, node1.UserID().Get(), "First node should track creator")
-	assert.Equal(t, user.ID, node2.UserID().Get(), "Second node should track creator")
+	// Tagged nodes should not have UserID set.
+	assert.False(t, node1.UserID().Valid(), "First node should not have UserID")
+	assert.False(t, node2.UserID().Valid(), "Second node should not have UserID")
 
-	// Verify we have exactly 2 nodes
-	nodes := app.state.ListNodesByUser(types.UserID(user.ID))
-	assert.Equal(t, 2, nodes.Len(), "Should have exactly two nodes")
+	// Verify we have exactly 2 nodes.
+	allNodes := app.state.ListNodes()
+	assert.Equal(t, 2, allNodes.Len(), "Should have exactly two nodes")
 }
 
 // TestNonReusableTaggedPreAuthKey tests that a non-reusable PreAuthKey with tags
@@ -359,9 +359,9 @@ func TestNonReusableTaggedPreAuthKey(t *testing.T) {
 	_, err = app.handleRegisterWithAuthKey(regReq2, machineKey2.Public())
 	require.Error(t, err, "Should not be able to reuse non-reusable PreAuthKey")
 
-	// Verify only one node was created
-	nodes := app.state.ListNodesByUser(types.UserID(user.ID))
-	assert.Equal(t, 1, nodes.Len(), "Should have exactly one node")
+	// Verify only one node was created.
+	allNodes := app.state.ListNodes()
+	assert.Equal(t, 1, allNodes.Len(), "Should have exactly one node")
 }
 
 // TestExpiredTaggedPreAuthKey tests that an expired PreAuthKey with tags
@@ -625,6 +625,152 @@ func TestTaggedNodeReauthPreservesDisabledExpiry(t *testing.T) {
 		"Tagged node should have expiry PRESERVED as disabled after re-auth")
 }
 
+// TestExpiryDuringPersonalToTaggedConversion tests that when a personal node
+// is converted to tagged via reauth with RequestTags, the expiry is cleared to nil.
+// BUG #3048: Previously expiry was NOT cleared because expiry handling ran
+// BEFORE processReauthTags.
+func TestExpiryDuringPersonalToTaggedConversion(t *testing.T) {
+	app := createTestApp(t)
+	user := app.state.CreateUserForTest("expiry-test-user")
+
+	// Update policy to allow user to own tags
+	err := app.state.UpdatePolicyManagerUsersForTest()
+	require.NoError(t, err)
+
+	policy := `{
+		"tagOwners": {
+			"tag:server": ["expiry-test-user@"]
+		},
+		"acls": [{"action": "accept", "src": ["*"], "dst": ["*:*"]}]
+	}`
+	_, err = app.state.SetPolicy([]byte(policy))
+	require.NoError(t, err)
+
+	machineKey := key.NewMachine()
+	nodeKey1 := key.NewNode()
+
+	// Step 1: Create user-owned node WITH expiry set
+	clientExpiry := time.Now().Add(24 * time.Hour)
+	registrationID1 := types.MustAuthID()
+	regEntry1 := types.NewRegisterAuthRequest(types.Node{
+		MachineKey: machineKey.Public(),
+		NodeKey:    nodeKey1.Public(),
+		Hostname:   "personal-to-tagged",
+		Hostinfo: &tailcfg.Hostinfo{
+			Hostname:    "personal-to-tagged",
+			RequestTags: []string{}, // No tags - user-owned
+		},
+		Expiry: &clientExpiry,
+	})
+	app.state.SetAuthCacheEntry(registrationID1, regEntry1)
+
+	node, _, err := app.state.HandleNodeFromAuthPath(
+		registrationID1, types.UserID(user.ID), nil, "webauth",
+	)
+	require.NoError(t, err)
+	require.False(t, node.IsTagged(), "Node should be user-owned initially")
+	require.True(t, node.Expiry().Valid(), "User-owned node should have expiry set")
+
+	// Step 2: Re-auth with tags (Personal → Tagged conversion)
+	nodeKey2 := key.NewNode()
+	registrationID2 := types.MustAuthID()
+	regEntry2 := types.NewRegisterAuthRequest(types.Node{
+		MachineKey: machineKey.Public(),
+		NodeKey:    nodeKey2.Public(),
+		Hostname:   "personal-to-tagged",
+		Hostinfo: &tailcfg.Hostinfo{
+			Hostname:    "personal-to-tagged",
+			RequestTags: []string{"tag:server"}, // Adding tags
+		},
+		Expiry: &clientExpiry, // Client still sends expiry
+	})
+	app.state.SetAuthCacheEntry(registrationID2, regEntry2)
+
+	nodeAfter, _, err := app.state.HandleNodeFromAuthPath(
+		registrationID2, types.UserID(user.ID), nil, "webauth",
+	)
+	require.NoError(t, err)
+	require.True(t, nodeAfter.IsTagged(), "Node should be tagged after conversion")
+
+	// CRITICAL ASSERTION: Tagged nodes should NOT have expiry
+	assert.False(t, nodeAfter.Expiry().Valid(),
+		"Tagged node should have expiry cleared to nil")
+}
+
+// TestExpiryDuringTaggedToPersonalConversion tests that when a tagged node
+// is converted to personal via reauth with empty RequestTags, expiry is set
+// from the client request.
+// BUG #3048: Previously expiry was NOT set because expiry handling ran
+// BEFORE processReauthTags (node was still tagged at check time).
+func TestExpiryDuringTaggedToPersonalConversion(t *testing.T) {
+	app := createTestApp(t)
+	user := app.state.CreateUserForTest("expiry-test-user2")
+
+	// Update policy to allow user to own tags
+	err := app.state.UpdatePolicyManagerUsersForTest()
+	require.NoError(t, err)
+
+	policy := `{
+		"tagOwners": {
+			"tag:server": ["expiry-test-user2@"]
+		},
+		"acls": [{"action": "accept", "src": ["*"], "dst": ["*:*"]}]
+	}`
+	_, err = app.state.SetPolicy([]byte(policy))
+	require.NoError(t, err)
+
+	machineKey := key.NewMachine()
+	nodeKey1 := key.NewNode()
+
+	// Step 1: Create tagged node (expiry should be nil)
+	registrationID1 := types.MustAuthID()
+	regEntry1 := types.NewRegisterAuthRequest(types.Node{
+		MachineKey: machineKey.Public(),
+		NodeKey:    nodeKey1.Public(),
+		Hostname:   "tagged-to-personal",
+		Hostinfo: &tailcfg.Hostinfo{
+			Hostname:    "tagged-to-personal",
+			RequestTags: []string{"tag:server"}, // Tagged node
+		},
+	})
+	app.state.SetAuthCacheEntry(registrationID1, regEntry1)
+
+	node, _, err := app.state.HandleNodeFromAuthPath(
+		registrationID1, types.UserID(user.ID), nil, "webauth",
+	)
+	require.NoError(t, err)
+	require.True(t, node.IsTagged(), "Node should be tagged initially")
+	require.False(t, node.Expiry().Valid(), "Tagged node should have nil expiry")
+
+	// Step 2: Re-auth with empty tags (Tagged → Personal conversion)
+	nodeKey2 := key.NewNode()
+	clientExpiry := time.Now().Add(48 * time.Hour)
+	registrationID2 := types.MustAuthID()
+	regEntry2 := types.NewRegisterAuthRequest(types.Node{
+		MachineKey: machineKey.Public(),
+		NodeKey:    nodeKey2.Public(),
+		Hostname:   "tagged-to-personal",
+		Hostinfo: &tailcfg.Hostinfo{
+			Hostname:    "tagged-to-personal",
+			RequestTags: []string{}, // Empty tags - convert to user-owned
+		},
+		Expiry: &clientExpiry, // Client requests expiry
+	})
+	app.state.SetAuthCacheEntry(registrationID2, regEntry2)
+
+	nodeAfter, _, err := app.state.HandleNodeFromAuthPath(
+		registrationID2, types.UserID(user.ID), nil, "webauth",
+	)
+	require.NoError(t, err)
+	require.False(t, nodeAfter.IsTagged(), "Node should be user-owned after conversion")
+
+	// CRITICAL ASSERTION: User-owned nodes should have expiry from client
+	assert.True(t, nodeAfter.Expiry().Valid(),
+		"User-owned node should have expiry set")
+	assert.WithinDuration(t, clientExpiry, nodeAfter.Expiry().Get(), 5*time.Second,
+		"Expiry should match client request")
+}
+
 // TestReAuthWithDifferentMachineKey tests the edge case where a node attempts
 // to re-authenticate with the same NodeKey but a DIFFERENT MachineKey.
 // This scenario should be handled gracefully (currently creates a new node).

hscontrol/capver/capver_generated.go

@@ -40,6 +40,7 @@ var tailscaleToCapVer = map[string]tailcfg.CapabilityVersion{
 	"v1.88": 125,
 	"v1.90": 130,
 	"v1.92": 131,
+	"v1.94": 131,
 }
 
 var capVerToTailscaleVer = map[tailcfg.CapabilityVersion]string{

hscontrol/capver/capver_test_data.go

@@ -9,10 +9,9 @@ var tailscaleLatestMajorMinorTests = []struct {
 	stripV   bool
 	expected []string
 }{
-	{3, false, []string{"v1.88", "v1.90", "v1.92"}},
-	{2, true, []string{"1.90", "1.92"}},
+	{3, false, []string{"v1.90", "v1.92", "v1.94"}},
+	{2, true, []string{"1.92", "1.94"}},
 	{10, true, []string{
-		"1.74",
 		"1.76",
 		"1.78",
 		"1.80",
@@ -22,6 +21,7 @@ var tailscaleLatestMajorMinorTests = []struct {
 		"1.88",
 		"1.90",
 		"1.92",
+		"1.94",
 	}},
 	{0, false, nil},
 }

hscontrol/db/api_key.go

@@ -77,8 +77,8 @@ func (hsdb *HSDatabase) CreateAPIKey(
 		Expiration: expiration,
 	}
 
-	if err := hsdb.DB.Save(&key).Error; err != nil {
-		return "", nil, fmt.Errorf("failed to save API key to database: %w", err)
+	if err := hsdb.DB.Save(&key).Error; err != nil { //nolint:noinlineerr
+		return "", nil, fmt.Errorf("saving API key to database: %w", err)
 	}
 
 	return keyStr, &key, nil
@@ -87,7 +87,9 @@ func (hsdb *HSDatabase) CreateAPIKey(
 // ListAPIKeys returns the list of ApiKeys for a user.
 func (hsdb *HSDatabase) ListAPIKeys() ([]types.APIKey, error) {
 	keys := []types.APIKey{}
-	if err := hsdb.DB.Find(&keys).Error; err != nil {
+
+	err := hsdb.DB.Find(&keys).Error
+	if err != nil {
 		return nil, err
 	}
 
@@ -126,7 +128,8 @@ func (hsdb *HSDatabase) DestroyAPIKey(key types.APIKey) error {
 
 // ExpireAPIKey marks a ApiKey as expired.
 func (hsdb *HSDatabase) ExpireAPIKey(key *types.APIKey) error {
-	if err := hsdb.DB.Model(&key).Update("Expiration", time.Now()).Error; err != nil {
+	err := hsdb.DB.Model(&key).Update("Expiration", time.Now()).Error
+	if err != nil {
 		return err
 	}
 

hscontrol/db/db.go

@@ -24,7 +24,6 @@ import (
 	"gorm.io/gorm"
 	"gorm.io/gorm/logger"
 	"gorm.io/gorm/schema"
-	"tailscale.com/net/tsaddr"
 	"zgo.at/zcache/v2"
 )
 
@@ -48,20 +47,27 @@ const (
 type HSDatabase struct {
 	DB       *gorm.DB
 	cfg      *types.Config
-	regCache *zcache.Cache[types.RegistrationID, types.RegisterNode]
+	regCache *zcache.Cache[types.AuthID, types.AuthRequest]
 }
 
 // NewHeadscaleDatabase creates a new database connection and runs migrations.
 // It accepts the full configuration to allow migrations access to policy settings.
+//
+//nolint:gocyclo // complex database initialization with many migrations
 func NewHeadscaleDatabase(
 	cfg *types.Config,
-	regCache *zcache.Cache[types.RegistrationID, types.RegisterNode],
+	regCache *zcache.Cache[types.AuthID, types.AuthRequest],
 ) (*HSDatabase, error) {
 	dbConn, err := openDB(cfg.Database)
 	if err != nil {
 		return nil, err
 	}
 
+	err = checkVersionUpgradePath(dbConn)
+	if err != nil {
+		return nil, fmt.Errorf("version check: %w", err)
+	}
+
 	migrations := gormigrate.New(
 		dbConn,
 		gormigrate.DefaultOptions,
@@ -76,7 +82,7 @@ func NewHeadscaleDatabase(
 				ID: "202501221827",
 				Migrate: func(tx *gorm.DB) error {
 					// Remove any invalid routes associated with a node that does not exist.
-					if tx.Migrator().HasTable(&types.Route{}) && tx.Migrator().HasTable(&types.Node{}) {
+					if tx.Migrator().HasTable(&types.Route{}) && tx.Migrator().HasTable(&types.Node{}) { //nolint:staticcheck // SA1019: Route kept for migrations
 						err := tx.Exec("delete from routes where node_id not in (select id from nodes)").Error
 						if err != nil {
 							return err
@@ -84,14 +90,14 @@ func NewHeadscaleDatabase(
 					}
 
 					// Remove any invalid routes without a node_id.
-					if tx.Migrator().HasTable(&types.Route{}) {
+					if tx.Migrator().HasTable(&types.Route{}) { //nolint:staticcheck // SA1019: Route kept for migrations
 						err := tx.Exec("delete from routes where node_id is null").Error
 						if err != nil {
 							return err
 						}
 					}
 
-					err := tx.AutoMigrate(&types.Route{})
+					err := tx.AutoMigrate(&types.Route{}) //nolint:staticcheck // SA1019: Route kept for migrations
 					if err != nil {
 						return fmt.Errorf("automigrating types.Route: %w", err)
 					}
@@ -109,6 +115,7 @@ func NewHeadscaleDatabase(
 					if err != nil {
 						return fmt.Errorf("automigrating types.PreAuthKey: %w", err)
 					}
+
 					err = tx.AutoMigrate(&types.Node{})
 					if err != nil {
 						return fmt.Errorf("automigrating types.Node: %w", err)
@@ -155,7 +162,8 @@ AND auth_key_id NOT IN (
 
 					nodeRoutes := map[uint64][]netip.Prefix{}
 
-					var routes []types.Route
+					var routes []types.Route //nolint:staticcheck // SA1019: Route kept for migrations
+
 					err = tx.Find(&routes).Error
 					if err != nil {
 						return fmt.Errorf("fetching routes: %w", err)
@@ -168,10 +176,10 @@ AND auth_key_id NOT IN (
 					}
 
 					for nodeID, routes := range nodeRoutes {
-						tsaddr.SortPrefixes(routes)
+						slices.SortFunc(routes, netip.Prefix.Compare)
 						routes = slices.Compact(routes)
 
-						data, err := json.Marshal(routes)
+						data, _ := json.Marshal(routes)
 
 						err = tx.Model(&types.Node{}).Where("id = ?", nodeID).Update("approved_routes", data).Error
 						if err != nil {
@@ -180,7 +188,7 @@ AND auth_key_id NOT IN (
 					}
 
 					// Drop the old table.
-					_ = tx.Migrator().DropTable(&types.Route{})
+					_ = tx.Migrator().DropTable(&types.Route{}) //nolint:staticcheck // SA1019: Route kept for migrations
 
 					return nil
 				},
@@ -245,21 +253,24 @@ AND auth_key_id NOT IN (
 				Migrate: func(tx *gorm.DB) error {
 					// Only run on SQLite
 					if cfg.Database.Type != types.DatabaseSqlite {
-						log.Info().Msg("Skipping schema migration on non-SQLite database")
+						log.Info().Msg("skipping schema migration on non-SQLite database")
 						return nil
 					}
 
-					log.Info().Msg("Starting schema recreation with table renaming")
+					log.Info().Msg("starting schema recreation with table renaming")
 
 					// Rename existing tables to _old versions
 					tablesToRename := []string{"users", "pre_auth_keys", "api_keys", "nodes", "policies"}
 
 					// Check if routes table exists and drop it (should have been migrated already)
 					var routesExists bool
+
 					err := tx.Raw("SELECT COUNT(*) FROM sqlite_master WHERE type='table' AND name='routes'").Row().Scan(&routesExists)
 					if err == nil && routesExists {
-						log.Info().Msg("Dropping leftover routes table")
-						if err := tx.Exec("DROP TABLE routes").Error; err != nil {
+						log.Info().Msg("dropping leftover routes table")
+
+						err := tx.Exec("DROP TABLE routes").Error
+						if err != nil {
 							return fmt.Errorf("dropping routes table: %w", err)
 						}
 					}
@@ -281,6 +292,7 @@ AND auth_key_id NOT IN (
 					for _, table := range tablesToRename {
 						// Check if table exists before renaming
 						var exists bool
+
 						err := tx.Raw("SELECT COUNT(*) FROM sqlite_master WHERE type='table' AND name=?", table).Row().Scan(&exists)
 						if err != nil {
 							return fmt.Errorf("checking if table %s exists: %w", table, err)
@@ -291,7 +303,8 @@ AND auth_key_id NOT IN (
 							_ = tx.Exec("DROP TABLE IF EXISTS " + table + "_old").Error
 
 							// Rename current table to _old
-							if err := tx.Exec("ALTER TABLE " + table + " RENAME TO " + table + "_old").Error; err != nil {
+							err := tx.Exec("ALTER TABLE " + table + " RENAME TO " + table + "_old").Error
+							if err != nil {
 								return fmt.Errorf("renaming table %s to %s_old: %w", table, table, err)
 							}
 						}
@@ -365,7 +378,8 @@ AND auth_key_id NOT IN (
 					}
 
 					for _, createSQL := range tableCreationSQL {
-						if err := tx.Exec(createSQL).Error; err != nil {
+						err := tx.Exec(createSQL).Error
+						if err != nil {
 							return fmt.Errorf("creating new table: %w", err)
 						}
 					}
@@ -394,7 +408,8 @@ AND auth_key_id NOT IN (
 					}
 
 					for _, copySQL := range dataCopySQL {
-						if err := tx.Exec(copySQL).Error; err != nil {
+						err := tx.Exec(copySQL).Error
+						if err != nil {
 							return fmt.Errorf("copying data: %w", err)
 						}
 					}
@@ -417,19 +432,21 @@ AND auth_key_id NOT IN (
 					}
 
 					for _, indexSQL := range indexes {
-						if err := tx.Exec(indexSQL).Error; err != nil {
+						err := tx.Exec(indexSQL).Error
+						if err != nil {
 							return fmt.Errorf("creating index: %w", err)
 						}
 					}
 
 					// Drop old tables only after everything succeeds
 					for _, table := range tablesToRename {
-						if err := tx.Exec("DROP TABLE IF EXISTS " + table + "_old").Error; err != nil {
-							log.Warn().Str("table", table+"_old").Err(err).Msg("Failed to drop old table, but migration succeeded")
+						err := tx.Exec("DROP TABLE IF EXISTS " + table + "_old").Error
+						if err != nil {
+							log.Warn().Str("table", table+"_old").Err(err).Msg("failed to drop old table, but migration succeeded")
 						}
 					}
 
-					log.Info().Msg("Schema recreation completed successfully")
+					log.Info().Msg("schema recreation completed successfully")
 
 					return nil
 				},
@@ -595,12 +612,12 @@ AND auth_key_id NOT IN (
 					// 1. Load policy from file or database based on configuration
 					policyData, err := PolicyBytes(tx, cfg)
 					if err != nil {
-						log.Warn().Err(err).Msg("Failed to load policy, skipping RequestTags migration (tags will be validated on node reconnect)")
+						log.Warn().Err(err).Msg("failed to load policy, skipping RequestTags migration (tags will be validated on node reconnect)")
 						return nil
 					}
 
 					if len(policyData) == 0 {
-						log.Info().Msg("No policy found, skipping RequestTags migration (tags will be validated on node reconnect)")
+						log.Info().Msg("no policy found, skipping RequestTags migration (tags will be validated on node reconnect)")
 						return nil
 					}
 
@@ -618,7 +635,7 @@ AND auth_key_id NOT IN (
 					// 3. Create PolicyManager (handles HuJSON parsing, groups, nested tags, etc.)
 					polMan, err := policy.NewPolicyManager(policyData, users, nodes.ViewSlice())
 					if err != nil {
-						log.Warn().Err(err).Msg("Failed to parse policy, skipping RequestTags migration (tags will be validated on node reconnect)")
+						log.Warn().Err(err).Msg("failed to parse policy, skipping RequestTags migration (tags will be validated on node reconnect)")
 						return nil
 					}
 
@@ -652,8 +669,7 @@ AND auth_key_id NOT IN (
 						if len(validatedTags) == 0 {
 							if len(rejectedTags) > 0 {
 								log.Debug().
-									Uint64("node.id", uint64(node.ID)).
-									Str("node.name", node.Hostname).
+									EmbedObject(node).
 									Strs("rejected_tags", rejectedTags).
 									Msg("RequestTags rejected during migration (not authorized)")
 							}
@@ -676,8 +692,7 @@ AND auth_key_id NOT IN (
 						}
 
 						log.Info().
-							Uint64("node.id", uint64(node.ID)).
-							Str("node.name", node.Hostname).
+							EmbedObject(node).
 							Strs("validated_tags", validatedTags).
 							Strs("rejected_tags", rejectedTags).
 							Strs("existing_tags", existingTags).
@@ -689,6 +704,29 @@ AND auth_key_id NOT IN (
 				},
 				Rollback: func(db *gorm.DB) error { return nil },
 			},
+			{
+				// Clear user_id on tagged nodes.
+				// Tagged nodes are owned by their tags, not a user.
+				// Previously user_id was kept as "created by" tracking,
+				// but this prevents deleting users whose nodes have been
+				// tagged, and the ON DELETE CASCADE FK would destroy the
+				// tagged nodes if the user were deleted.
+				// Fixes: https://github.com/juanfont/headscale/issues/3077
+				ID: "202602201200-clear-tagged-node-user-id",
+				Migrate: func(tx *gorm.DB) error {
+					err := tx.Exec(`
+UPDATE nodes
+SET user_id = NULL
+WHERE tags IS NOT NULL AND tags != '[]' AND tags != '';
+						`).Error
+					if err != nil {
+						return fmt.Errorf("clearing user_id on tagged nodes: %w", err)
+					}
+
+					return nil
+				},
+				Rollback: func(db *gorm.DB) error { return nil },
+			},
 		},
 	)
 
@@ -750,6 +788,20 @@ AND auth_key_id NOT IN (
 		return nil, fmt.Errorf("migration failed: %w", err)
 	}
 
+	// Store the current version in the database after migrations succeed.
+	// Dev builds skip this to preserve the stored version for the next
+	// real versioned binary.
+	currentVersion := types.GetVersionInfo().Version
+	if !isDev(currentVersion) {
+		err = setDatabaseVersion(dbConn, currentVersion)
+		if err != nil {
+			return nil, fmt.Errorf(
+				"storing database version: %w",
+				err,
+			)
+		}
+	}
+
 	// Validate that the schema ends up in the expected state.
 	// This is currently only done on sqlite as squibble does not
 	// support Postgres and we use our sqlite schema as our source of
@@ -762,6 +814,7 @@ AND auth_key_id NOT IN (
 
 		// or else it blocks...
 		sqlConn.SetMaxIdleConns(maxIdleConns)
+
 		sqlConn.SetMaxOpenConns(maxOpenConns)
 		defer sqlConn.SetMaxIdleConns(1)
 		defer sqlConn.SetMaxOpenConns(1)
@@ -779,7 +832,7 @@ AND auth_key_id NOT IN (
 			},
 		}
 
-		if err := squibble.Validate(ctx, sqlConn, dbSchema, &opts); err != nil {
+		if err := squibble.Validate(ctx, sqlConn, dbSchema, &opts); err != nil { //nolint:noinlineerr
 			return nil, fmt.Errorf("validating schema: %w", err)
 		}
 	}
@@ -805,6 +858,7 @@ func openDB(cfg types.DatabaseConfig) (*gorm.DB, error) {
 	switch cfg.Type {
 	case types.DatabaseSqlite:
 		dir := filepath.Dir(cfg.Sqlite.Path)
+
 		err := util.EnsureDir(dir)
 		if err != nil {
 			return nil, fmt.Errorf("creating directory for sqlite: %w", err)
@@ -858,7 +912,7 @@ func openDB(cfg types.DatabaseConfig) (*gorm.DB, error) {
 			Str("path", dbString).
 			Msg("Opening database")
 
-		if sslEnabled, err := strconv.ParseBool(cfg.Postgres.Ssl); err == nil {
+		if sslEnabled, err := strconv.ParseBool(cfg.Postgres.Ssl); err == nil { //nolint:noinlineerr
 			if !sslEnabled {
 				dbString += " sslmode=disable"
 			}
@@ -913,7 +967,7 @@ func runMigrations(cfg types.DatabaseConfig, dbConn *gorm.DB, migrations *gormig
 
 		// Get the current foreign key status
 		var fkOriginallyEnabled int
-		if err := dbConn.Raw("PRAGMA foreign_keys").Scan(&fkOriginallyEnabled).Error; err != nil {
+		if err := dbConn.Raw("PRAGMA foreign_keys").Scan(&fkOriginallyEnabled).Error; err != nil { //nolint:noinlineerr
 			return fmt.Errorf("checking foreign key status: %w", err)
 		}
 
@@ -937,33 +991,36 @@ func runMigrations(cfg types.DatabaseConfig, dbConn *gorm.DB, migrations *gormig
 		}
 
 		for _, migrationID := range migrationIDs {
-			log.Trace().Caller().Str("migration_id", migrationID).Msg("Running migration")
+			log.Trace().Caller().Str("migration_id", migrationID).Msg("running migration")
 			needsFKDisabled := migrationsRequiringFKDisabled[migrationID]
 
 			if needsFKDisabled {
 				// Disable foreign keys for this migration
-				if err := dbConn.Exec("PRAGMA foreign_keys = OFF").Error; err != nil {
+				err := dbConn.Exec("PRAGMA foreign_keys = OFF").Error
+				if err != nil {
 					return fmt.Errorf("disabling foreign keys for migration %s: %w", migrationID, err)
 				}
 			} else {
 				// Ensure foreign keys are enabled for this migration
-				if err := dbConn.Exec("PRAGMA foreign_keys = ON").Error; err != nil {
+				err := dbConn.Exec("PRAGMA foreign_keys = ON").Error
+				if err != nil {
 					return fmt.Errorf("enabling foreign keys for migration %s: %w", migrationID, err)
 				}
 			}
 
 			// Run up to this specific migration (will only run the next pending migration)
-			if err := migrations.MigrateTo(migrationID); err != nil {
+			err := migrations.MigrateTo(migrationID)
+			if err != nil {
 				return fmt.Errorf("running migration %s: %w", migrationID, err)
 			}
 		}
 
-		if err := dbConn.Exec("PRAGMA foreign_keys = ON").Error; err != nil {
+		if err := dbConn.Exec("PRAGMA foreign_keys = ON").Error; err != nil { //nolint:noinlineerr
 			return fmt.Errorf("restoring foreign keys: %w", err)
 		}
 
 		// Run the rest of the migrations
-		if err := migrations.Migrate(); err != nil {
+		if err := migrations.Migrate(); err != nil { //nolint:noinlineerr
 			return err
 		}
 
@@ -981,16 +1038,22 @@ func runMigrations(cfg types.DatabaseConfig, dbConn *gorm.DB, migrations *gormig
 		if err != nil {
 			return err
 		}
+		defer rows.Close()
 
 		for rows.Next() {
 			var violation constraintViolation
-			if err := rows.Scan(&violation.Table, &violation.RowID, &violation.Parent, &violation.ConstraintIndex); err != nil {
+
+			err := rows.Scan(&violation.Table, &violation.RowID, &violation.Parent, &violation.ConstraintIndex)
+			if err != nil {
 				return err
 			}
 
 			violatedConstraints = append(violatedConstraints, violation)
 		}
-		_ = rows.Close()
+
+		if err := rows.Err(); err != nil { //nolint:noinlineerr
+			return err
+		}
 
 		if len(violatedConstraints) > 0 {
 			for _, violation := range violatedConstraints {
@@ -1005,7 +1068,8 @@ func runMigrations(cfg types.DatabaseConfig, dbConn *gorm.DB, migrations *gormig
 		}
 	} else {
 		// PostgreSQL can run all migrations in one block - no foreign key issues
-		if err := migrations.Migrate(); err != nil {
+		err := migrations.Migrate()
+		if err != nil {
 			return err
 		}
 	}
@@ -1016,6 +1080,7 @@ func runMigrations(cfg types.DatabaseConfig, dbConn *gorm.DB, migrations *gormig
 func (hsdb *HSDatabase) PingDB(ctx context.Context) error {
 	ctx, cancel := context.WithTimeout(ctx, time.Second)
 	defer cancel()
+
 	sqlDB, err := hsdb.DB.DB()
 	if err != nil {
 		return err
@@ -1031,7 +1096,7 @@ func (hsdb *HSDatabase) Close() error {
 	}
 
 	if hsdb.cfg.Database.Type == types.DatabaseSqlite && hsdb.cfg.Database.Sqlite.WriteAheadLog {
-		db.Exec("VACUUM")
+		db.Exec("VACUUM") //nolint:errcheck,noctx
 	}
 
 	return db.Close()
@@ -1040,12 +1105,14 @@ func (hsdb *HSDatabase) Close() error {
 func (hsdb *HSDatabase) Read(fn func(rx *gorm.DB) error) error {
 	rx := hsdb.DB.Begin()
 	defer rx.Rollback()
+
 	return fn(rx)
 }
 
 func Read[T any](db *gorm.DB, fn func(rx *gorm.DB) (T, error)) (T, error) {
 	rx := db.Begin()
 	defer rx.Rollback()
+
 	ret, err := fn(rx)
 	if err != nil {
 		var no T
@@ -1058,7 +1125,9 @@ func Read[T any](db *gorm.DB, fn func(rx *gorm.DB) (T, error)) (T, error) {
 func (hsdb *HSDatabase) Write(fn func(tx *gorm.DB) error) error {
 	tx := hsdb.DB.Begin()
 	defer tx.Rollback()
-	if err := fn(tx); err != nil {
+
+	err := fn(tx)
+	if err != nil {
 		return err
 	}
 
@@ -1068,6 +1137,7 @@ func (hsdb *HSDatabase) Write(fn func(tx *gorm.DB) error) error {
 func Write[T any](db *gorm.DB, fn func(tx *gorm.DB) (T, error)) (T, error) {
 	tx := db.Begin()
 	defer tx.Rollback()
+
 	ret, err := fn(tx)
 	if err != nil {
 		var no T

hscontrol/db/db_test.go

@@ -1,6 +1,7 @@
 package db
 
 import (
+	"context"
 	"database/sql"
 	"os"
 	"os/exec"
@@ -44,6 +45,7 @@ func TestSQLiteMigrationAndDataValidation(t *testing.T) {
 
 				// Verify api_keys data preservation
 				var apiKeyCount int
+
 				err = hsdb.DB.Raw("SELECT COUNT(*) FROM api_keys").Scan(&apiKeyCount).Error
 				require.NoError(t, err)
 				assert.Equal(t, 2, apiKeyCount, "should preserve all 2 api_keys from original schema")
@@ -160,8 +162,8 @@ func TestSQLiteMigrationAndDataValidation(t *testing.T) {
 	}
 }
 
-func emptyCache() *zcache.Cache[types.RegistrationID, types.RegisterNode] {
-	return zcache.New[types.RegistrationID, types.RegisterNode](time.Minute, time.Hour)
+func emptyCache() *zcache.Cache[types.AuthID, types.AuthRequest] {
+	return zcache.New[types.AuthID, types.AuthRequest](time.Minute, time.Hour)
 }
 
 func createSQLiteFromSQLFile(sqlFilePath, dbPath string) error {
@@ -176,7 +178,7 @@ func createSQLiteFromSQLFile(sqlFilePath, dbPath string) error {
 		return err
 	}
 
-	_, err = db.Exec(string(schemaContent))
+	_, err = db.ExecContext(context.Background(), string(schemaContent))
 
 	return err
 }
@@ -186,6 +188,7 @@ func createSQLiteFromSQLFile(sqlFilePath, dbPath string) error {
 func requireConstraintFailed(t *testing.T, err error) {
 	t.Helper()
 	require.Error(t, err)
+
 	if !strings.Contains(err.Error(), "UNIQUE constraint failed:") && !strings.Contains(err.Error(), "violates unique constraint") {
 		require.Failf(t, "expected error to contain a constraint failure, got: %s", err.Error())
 	}
@@ -198,7 +201,7 @@ func TestConstraints(t *testing.T) {
 	}{
 		{
 			name: "no-duplicate-username-if-no-oidc",
-			run: func(t *testing.T, db *gorm.DB) {
+			run: func(t *testing.T, db *gorm.DB) { //nolint:thelper
 				_, err := CreateUser(db, types.User{Name: "user1"})
 				require.NoError(t, err)
 				_, err = CreateUser(db, types.User{Name: "user1"})
@@ -207,7 +210,7 @@ func TestConstraints(t *testing.T) {
 		},
 		{
 			name: "no-oidc-duplicate-username-and-id",
-			run: func(t *testing.T, db *gorm.DB) {
+			run: func(t *testing.T, db *gorm.DB) { //nolint:thelper
 				user := types.User{
 					Model: gorm.Model{ID: 1},
 					Name:  "user1",
@@ -229,7 +232,7 @@ func TestConstraints(t *testing.T) {
 		},
 		{
 			name: "no-oidc-duplicate-id",
-			run: func(t *testing.T, db *gorm.DB) {
+			run: func(t *testing.T, db *gorm.DB) { //nolint:thelper
 				user := types.User{
 					Model: gorm.Model{ID: 1},
 					Name:  "user1",
@@ -251,7 +254,7 @@ func TestConstraints(t *testing.T) {
 		},
 		{
 			name: "allow-duplicate-username-cli-then-oidc",
-			run: func(t *testing.T, db *gorm.DB) {
+			run: func(t *testing.T, db *gorm.DB) { //nolint:thelper
 				_, err := CreateUser(db, types.User{Name: "user1"}) // Create CLI username
 				require.NoError(t, err)
 
@@ -266,7 +269,7 @@ func TestConstraints(t *testing.T) {
 		},
 		{
 			name: "allow-duplicate-username-oidc-then-cli",
-			run: func(t *testing.T, db *gorm.DB) {
+			run: func(t *testing.T, db *gorm.DB) { //nolint:thelper
 				user := types.User{
 					Name:               "user1",
 					ProviderIdentifier: sql.NullString{String: "http://test.com/user1", Valid: true},
@@ -320,7 +323,7 @@ func TestPostgresMigrationAndDataValidation(t *testing.T) {
 			}
 
 			// Construct the pg_restore command
-			cmd := exec.Command(pgRestorePath, "--verbose", "--if-exists", "--clean", "--no-owner", "--dbname", u.String(), tt.dbPath)
+			cmd := exec.CommandContext(context.Background(), pgRestorePath, "--verbose", "--if-exists", "--clean", "--no-owner", "--dbname", u.String(), tt.dbPath)
 
 			// Set the output streams
 			cmd.Stdout = os.Stdout
@@ -401,6 +404,7 @@ func dbForTestWithPath(t *testing.T, sqlFilePath string) *HSDatabase {
 // skip already-applied migrations and only run new ones.
 func TestSQLiteAllTestdataMigrations(t *testing.T) {
 	t.Parallel()
+
 	schemas, err := os.ReadDir("testdata/sqlite")
 	require.NoError(t, err)
 

hscontrol/db/ephemeral_garbage_collector_test.go

@@ -27,13 +27,17 @@ func TestEphemeralGarbageCollectorGoRoutineLeak(t *testing.T) {
 	t.Logf("Initial number of goroutines: %d", initialGoroutines)
 
 	// Basic deletion tracking mechanism
-	var deletedIDs []types.NodeID
-	var deleteMutex sync.Mutex
-	var deletionWg sync.WaitGroup
+	var (
+		deletedIDs  []types.NodeID
+		deleteMutex sync.Mutex
+		deletionWg  sync.WaitGroup
+	)
 
 	deleteFunc := func(nodeID types.NodeID) {
 		deleteMutex.Lock()
+
 		deletedIDs = append(deletedIDs, nodeID)
+
 		deleteMutex.Unlock()
 		deletionWg.Done()
 	}
@@ -43,14 +47,17 @@ func TestEphemeralGarbageCollectorGoRoutineLeak(t *testing.T) {
 	go gc.Start()
 
 	// Schedule several nodes for deletion with short expiry
-	const expiry = fifty
-	const numNodes = 100
+	const (
+		expiry   = fifty
+		numNodes = 100
+	)
 
 	// Set up wait group for expected deletions
+
 	deletionWg.Add(numNodes)
 
 	for i := 1; i <= numNodes; i++ {
-		gc.Schedule(types.NodeID(i), expiry)
+		gc.Schedule(types.NodeID(i), expiry) //nolint:gosec // safe conversion in test
 	}
 
 	// Wait for all scheduled deletions to complete
@@ -63,7 +70,7 @@ func TestEphemeralGarbageCollectorGoRoutineLeak(t *testing.T) {
 
 	// Schedule and immediately cancel to test that part of the code
 	for i := numNodes + 1; i <= numNodes*2; i++ {
-		nodeID := types.NodeID(i)
+		nodeID := types.NodeID(i) //nolint:gosec // safe conversion in test
 		gc.Schedule(nodeID, time.Hour)
 		gc.Cancel(nodeID)
 	}
@@ -87,14 +94,18 @@ func TestEphemeralGarbageCollectorGoRoutineLeak(t *testing.T) {
 // and then reschedules it with a shorter expiry, and verifies that the node is deleted only once.
 func TestEphemeralGarbageCollectorReschedule(t *testing.T) {
 	// Deletion tracking mechanism
-	var deletedIDs []types.NodeID
-	var deleteMutex sync.Mutex
+	var (
+		deletedIDs  []types.NodeID
+		deleteMutex sync.Mutex
+	)
 
 	deletionNotifier := make(chan types.NodeID, 1)
 
 	deleteFunc := func(nodeID types.NodeID) {
 		deleteMutex.Lock()
+
 		deletedIDs = append(deletedIDs, nodeID)
+
 		deleteMutex.Unlock()
 
 		deletionNotifier <- nodeID
@@ -102,11 +113,14 @@ func TestEphemeralGarbageCollectorReschedule(t *testing.T) {
 
 	// Start GC
 	gc := NewEphemeralGarbageCollector(deleteFunc)
+
 	go gc.Start()
 	defer gc.Close()
 
-	const shortExpiry = fifty
-	const longExpiry = 1 * time.Hour
+	const (
+		shortExpiry = fifty
+		longExpiry  = 1 * time.Hour
+	)
 
 	nodeID := types.NodeID(1)
 
@@ -136,23 +150,31 @@ func TestEphemeralGarbageCollectorReschedule(t *testing.T) {
 // and verifies that the node is deleted only once.
 func TestEphemeralGarbageCollectorCancelAndReschedule(t *testing.T) {
 	// Deletion tracking mechanism
-	var deletedIDs []types.NodeID
-	var deleteMutex sync.Mutex
+	var (
+		deletedIDs  []types.NodeID
+		deleteMutex sync.Mutex
+	)
+
 	deletionNotifier := make(chan types.NodeID, 1)
 
 	deleteFunc := func(nodeID types.NodeID) {
 		deleteMutex.Lock()
+
 		deletedIDs = append(deletedIDs, nodeID)
+
 		deleteMutex.Unlock()
+
 		deletionNotifier <- nodeID
 	}
 
 	// Start the GC
 	gc := NewEphemeralGarbageCollector(deleteFunc)
+
 	go gc.Start()
 	defer gc.Close()
 
 	nodeID := types.NodeID(1)
+
 	const expiry = fifty
 
 	// Schedule node for deletion
@@ -196,14 +218,18 @@ func TestEphemeralGarbageCollectorCancelAndReschedule(t *testing.T) {
 // It creates a new EphemeralGarbageCollector, schedules a node for deletion, closes the GC, and verifies that the node is not deleted.
 func TestEphemeralGarbageCollectorCloseBeforeTimerFires(t *testing.T) {
 	// Deletion tracking
-	var deletedIDs []types.NodeID
-	var deleteMutex sync.Mutex
+	var (
+		deletedIDs  []types.NodeID
+		deleteMutex sync.Mutex
+	)
 
 	deletionNotifier := make(chan types.NodeID, 1)
 
 	deleteFunc := func(nodeID types.NodeID) {
 		deleteMutex.Lock()
+
 		deletedIDs = append(deletedIDs, nodeID)
+
 		deleteMutex.Unlock()
 
 		deletionNotifier <- nodeID
@@ -246,13 +272,18 @@ func TestEphemeralGarbageCollectorScheduleAfterClose(t *testing.T) {
 	t.Logf("Initial number of goroutines: %d", initialGoroutines)
 
 	// Deletion tracking
-	var deletedIDs []types.NodeID
-	var deleteMutex sync.Mutex
+	var (
+		deletedIDs  []types.NodeID
+		deleteMutex sync.Mutex
+	)
+
 	nodeDeleted := make(chan struct{})
 
 	deleteFunc := func(nodeID types.NodeID) {
 		deleteMutex.Lock()
+
 		deletedIDs = append(deletedIDs, nodeID)
+
 		deleteMutex.Unlock()
 		close(nodeDeleted) // Signal that deletion happened
 	}
@@ -263,10 +294,12 @@ func TestEphemeralGarbageCollectorScheduleAfterClose(t *testing.T) {
 	// Use a WaitGroup to ensure the GC has started
 	var startWg sync.WaitGroup
 	startWg.Add(1)
+
 	go func() {
 		startWg.Done() // Signal that the goroutine has started
 		gc.Start()
 	}()
+
 	startWg.Wait() // Wait for the GC to start
 
 	// Close GC right away
@@ -288,7 +321,9 @@ func TestEphemeralGarbageCollectorScheduleAfterClose(t *testing.T) {
 
 	// Check no node was deleted
 	deleteMutex.Lock()
+
 	nodesDeleted := len(deletedIDs)
+
 	deleteMutex.Unlock()
 	assert.Equal(t, 0, nodesDeleted, "No nodes should be deleted when Schedule is called after Close")
 
@@ -311,12 +346,16 @@ func TestEphemeralGarbageCollectorConcurrentScheduleAndClose(t *testing.T) {
 	t.Logf("Initial number of goroutines: %d", initialGoroutines)
 
 	// Deletion tracking mechanism
-	var deletedIDs []types.NodeID
-	var deleteMutex sync.Mutex
+	var (
+		deletedIDs  []types.NodeID
+		deleteMutex sync.Mutex
+	)
 
 	deleteFunc := func(nodeID types.NodeID) {
 		deleteMutex.Lock()
+
 		deletedIDs = append(deletedIDs, nodeID)
+
 		deleteMutex.Unlock()
 	}
 
@@ -325,8 +364,10 @@ func TestEphemeralGarbageCollectorConcurrentScheduleAndClose(t *testing.T) {
 	go gc.Start()
 
 	// Number of concurrent scheduling goroutines
-	const numSchedulers = 10
-	const nodesPerScheduler = 50
+	const (
+		numSchedulers     = 10
+		nodesPerScheduler = 50
+	)
 
 	const closeAfterNodes = 25 // Close GC after this many nodes per scheduler
 
@@ -353,8 +394,8 @@ func TestEphemeralGarbageCollectorConcurrentScheduleAndClose(t *testing.T) {
 				case <-stopScheduling:
 					return
 				default:
-					nodeID := types.NodeID(baseNodeID + j + 1)
-					gc.Schedule(nodeID, 1*time.Hour) // Long expiry to ensure it doesn't trigger during test
+					nodeID := types.NodeID(baseNodeID + j + 1) //nolint:gosec // safe conversion in test
+					gc.Schedule(nodeID, 1*time.Hour)           // Long expiry to ensure it doesn't trigger during test
 					atomic.AddInt64(&scheduledCount, 1)
 
 					// Yield to other goroutines to introduce variability

hscontrol/db/ip.go

@@ -17,7 +17,11 @@ import (
 	"tailscale.com/net/tsaddr"
 )
 
-var errGeneratedIPBytesInvalid = errors.New("generated ip bytes are invalid ip")
+var (
+	errGeneratedIPBytesInvalid = errors.New("generated ip bytes are invalid ip")
+	errGeneratedIPNotInPrefix  = errors.New("generated ip not in prefix")
+	errIPAllocatorNil          = errors.New("ip allocator was nil")
+)
 
 // IPAllocator is a singleton responsible for allocating
 // IP addresses for nodes and making sure the same
@@ -62,8 +66,10 @@ func NewIPAllocator(
 		strategy: strategy,
 	}
 
-	var v4s []sql.NullString
-	var v6s []sql.NullString
+	var (
+		v4s []sql.NullString
+		v6s []sql.NullString
+	)
 
 	if db != nil {
 		err := db.Read(func(rx *gorm.DB) error {
@@ -135,15 +141,18 @@ func (i *IPAllocator) Next() (*netip.Addr, *netip.Addr, error) {
 	i.mu.Lock()
 	defer i.mu.Unlock()
 
-	var err error
-	var ret4 *netip.Addr
-	var ret6 *netip.Addr
+	var (
+		err  error
+		ret4 *netip.Addr
+		ret6 *netip.Addr
+	)
 
 	if i.prefix4 != nil {
 		ret4, err = i.next(i.prev4, i.prefix4)
 		if err != nil {
 			return nil, nil, fmt.Errorf("allocating IPv4 address: %w", err)
 		}
+
 		i.prev4 = *ret4
 	}
 
@@ -152,6 +161,7 @@ func (i *IPAllocator) Next() (*netip.Addr, *netip.Addr, error) {
 		if err != nil {
 			return nil, nil, fmt.Errorf("allocating IPv6 address: %w", err)
 		}
+
 		i.prev6 = *ret6
 	}
 
@@ -168,8 +178,10 @@ func (i *IPAllocator) nextLocked(prev netip.Addr, prefix *netip.Prefix) (*netip.
 }
 
 func (i *IPAllocator) next(prev netip.Addr, prefix *netip.Prefix) (*netip.Addr, error) {
-	var err error
-	var ip netip.Addr
+	var (
+		err error
+		ip  netip.Addr
+	)
 
 	switch i.strategy {
 	case types.IPAllocationStrategySequential:
@@ -243,7 +255,8 @@ func randomNext(pfx netip.Prefix) (netip.Addr, error) {
 
 	if !pfx.Contains(ip) {
 		return netip.Addr{}, fmt.Errorf(
-			"generated ip(%s) not in prefix(%s)",
+			"%w: ip(%s) not in prefix(%s)",
+			errGeneratedIPNotInPrefix,
 			ip.String(),
 			pfx.String(),
 		)
@@ -268,11 +281,14 @@ func isTailscaleReservedIP(ip netip.Addr) bool {
 // If a prefix type has been removed (IPv4 or IPv6), it
 // will remove the IPs in that family from the node.
 func (db *HSDatabase) BackfillNodeIPs(i *IPAllocator) ([]string, error) {
-	var err error
-	var ret []string
+	var (
+		err error
+		ret []string
+	)
+
 	err = db.Write(func(tx *gorm.DB) error {
 		if i == nil {
-			return errors.New("backfilling IPs: ip allocator was nil")
+			return fmt.Errorf("backfilling IPs: %w", errIPAllocatorNil)
 		}
 
 		log.Trace().Caller().Msgf("starting to backfill IPs")
@@ -283,18 +299,19 @@ func (db *HSDatabase) BackfillNodeIPs(i *IPAllocator) ([]string, error) {
 		}
 
 		for _, node := range nodes {
-			log.Trace().Caller().Uint64("node.id", node.ID.Uint64()).Str("node.name", node.Hostname).Msg("IP backfill check started because node found in database")
+			log.Trace().Caller().EmbedObject(node).Msg("ip backfill check started because node found in database")
 
 			changed := false
 			// IPv4 prefix is set, but node ip is missing, alloc
 			if i.prefix4 != nil && node.IPv4 == nil {
 				ret4, err := i.nextLocked(i.prev4, i.prefix4)
 				if err != nil {
-					return fmt.Errorf("failed to allocate ipv4 for node(%d): %w", node.ID, err)
+					return fmt.Errorf("allocating IPv4 for node(%d): %w", node.ID, err)
 				}
 
 				node.IPv4 = ret4
 				changed = true
+
 				ret = append(ret, fmt.Sprintf("assigned IPv4 %q to Node(%d) %q", ret4.String(), node.ID, node.Hostname))
 			}
 
@@ -302,11 +319,12 @@ func (db *HSDatabase) BackfillNodeIPs(i *IPAllocator) ([]string, error) {
 			if i.prefix6 != nil && node.IPv6 == nil {
 				ret6, err := i.nextLocked(i.prev6, i.prefix6)
 				if err != nil {
-					return fmt.Errorf("failed to allocate ipv6 for node(%d): %w", node.ID, err)
+					return fmt.Errorf("allocating IPv6 for node(%d): %w", node.ID, err)
 				}
 
 				node.IPv6 = ret6
 				changed = true
+
 				ret = append(ret, fmt.Sprintf("assigned IPv6 %q to Node(%d) %q", ret6.String(), node.ID, node.Hostname))
 			}
 

hscontrol/db/ip_test.go

@@ -13,7 +13,6 @@ import (
 	"github.com/stretchr/testify/assert"
 	"github.com/stretchr/testify/require"
 	"tailscale.com/net/tsaddr"
-	"tailscale.com/types/ptr"
 )
 
 var mpp = func(pref string) *netip.Prefix {
@@ -21,9 +20,7 @@ var mpp = func(pref string) *netip.Prefix {
 	return &p
 }
 
-var na = func(pref string) netip.Addr {
-	return netip.MustParseAddr(pref)
-}
+var na = netip.MustParseAddr
 
 var nap = func(pref string) *netip.Addr {
 	n := na(pref)
@@ -158,8 +155,10 @@ func TestIPAllocatorSequential(t *testing.T) {
 				types.IPAllocationStrategySequential,
 			)
 
-			var got4s []netip.Addr
-			var got6s []netip.Addr
+			var (
+				got4s []netip.Addr
+				got6s []netip.Addr
+			)
 
 			for range tt.getCount {
 				got4, got6, err := alloc.Next()
@@ -175,6 +174,7 @@ func TestIPAllocatorSequential(t *testing.T) {
 					got6s = append(got6s, *got6)
 				}
 			}
+
 			if diff := cmp.Diff(tt.want4, got4s, util.Comparers...); diff != "" {
 				t.Errorf("IPAllocator 4s unexpected result (-want +got):\n%s", diff)
 			}
@@ -288,6 +288,7 @@ func TestBackfillIPAddresses(t *testing.T) {
 	fullNodeP := func(i int) *types.Node {
 		v4 := fmt.Sprintf("100.64.0.%d", i)
 		v6 := fmt.Sprintf("fd7a:115c:a1e0::%d", i)
+
 		return &types.Node{
 			IPv4: nap(v4),
 			IPv6: nap(v6),
@@ -484,12 +485,13 @@ func TestBackfillIPAddresses(t *testing.T) {
 func TestIPAllocatorNextNoReservedIPs(t *testing.T) {
 	db, err := newSQLiteTestDB()
 	require.NoError(t, err)
+
 	defer db.Close()
 
 	alloc, err := NewIPAllocator(
 		db,
-		ptr.To(tsaddr.CGNATRange()),
-		ptr.To(tsaddr.TailscaleULARange()),
+		new(tsaddr.CGNATRange()),
+		new(tsaddr.TailscaleULARange()),
 		types.IPAllocationStrategySequential,
 	)
 	if err != nil {
@@ -497,17 +499,17 @@ func TestIPAllocatorNextNoReservedIPs(t *testing.T) {
 	}
 
 	// Validate that we do not give out 100.100.100.100
-	nextQuad100, err := alloc.next(na("100.100.100.99"), ptr.To(tsaddr.CGNATRange()))
+	nextQuad100, err := alloc.next(na("100.100.100.99"), new(tsaddr.CGNATRange()))
 	require.NoError(t, err)
 	assert.Equal(t, na("100.100.100.101"), *nextQuad100)
 
 	// Validate that we do not give out fd7a:115c:a1e0::53
-	nextQuad100v6, err := alloc.next(na("fd7a:115c:a1e0::52"), ptr.To(tsaddr.TailscaleULARange()))
+	nextQuad100v6, err := alloc.next(na("fd7a:115c:a1e0::52"), new(tsaddr.TailscaleULARange()))
 	require.NoError(t, err)
 	assert.Equal(t, na("fd7a:115c:a1e0::54"), *nextQuad100v6)
 
 	// Validate that we do not give out fd7a:115c:a1e0::53
-	nextChrome, err := alloc.next(na("100.115.91.255"), ptr.To(tsaddr.CGNATRange()))
+	nextChrome, err := alloc.next(na("100.115.91.255"), new(tsaddr.CGNATRange()))
 	t.Logf("chrome: %s", nextChrome.String())
 	require.NoError(t, err)
 	assert.Equal(t, na("100.115.94.0"), *nextChrome)

hscontrol/db/node.go

@@ -16,18 +16,24 @@ import (
 
 	"github.com/juanfont/headscale/hscontrol/types"
 	"github.com/juanfont/headscale/hscontrol/util"
+	"github.com/juanfont/headscale/hscontrol/util/zlog/zf"
 	"github.com/rs/zerolog/log"
 	"gorm.io/gorm"
 	"tailscale.com/net/tsaddr"
 	"tailscale.com/types/key"
-	"tailscale.com/types/ptr"
 )
 
 const (
 	NodeGivenNameHashLength = 8
 	NodeGivenNameTrimSize   = 2
+
+	// defaultTestNodePrefix is the default hostname prefix for nodes created in tests.
+	defaultTestNodePrefix = "testnode"
 )
 
+// ErrNodeNameNotUnique is returned when a node name is not unique.
+var ErrNodeNameNotUnique = errors.New("node name is not unique")
+
 var invalidDNSRegex = regexp.MustCompile("[^a-z0-9-.]+")
 
 var (
@@ -51,12 +57,14 @@ func (hsdb *HSDatabase) ListPeers(nodeID types.NodeID, peerIDs ...types.NodeID)
 // If at least one peer ID is given, only these peer nodes will be returned.
 func ListPeers(tx *gorm.DB, nodeID types.NodeID, peerIDs ...types.NodeID) (types.Nodes, error) {
 	nodes := types.Nodes{}
-	if err := tx.
+
+	err := tx.
 		Preload("AuthKey").
 		Preload("AuthKey.User").
 		Preload("User").
 		Where("id <> ?", nodeID).
-		Where(peerIDs).Find(&nodes).Error; err != nil {
+		Where(peerIDs).Find(&nodes).Error
+	if err != nil {
 		return types.Nodes{}, err
 	}
 
@@ -75,11 +83,13 @@ func (hsdb *HSDatabase) ListNodes(nodeIDs ...types.NodeID) (types.Nodes, error)
 // or for the given nodes if at least one node ID is given as parameter.
 func ListNodes(tx *gorm.DB, nodeIDs ...types.NodeID) (types.Nodes, error) {
 	nodes := types.Nodes{}
-	if err := tx.
+
+	err := tx.
 		Preload("AuthKey").
 		Preload("AuthKey.User").
 		Preload("User").
-		Where(nodeIDs).Find(&nodes).Error; err != nil {
+		Where(nodeIDs).Find(&nodes).Error
+	if err != nil {
 		return nil, err
 	}
 
@@ -89,7 +99,9 @@ func ListNodes(tx *gorm.DB, nodeIDs ...types.NodeID) (types.Nodes, error) {
 func (hsdb *HSDatabase) ListEphemeralNodes() (types.Nodes, error) {
 	return Read(hsdb.DB, func(rx *gorm.DB) (types.Nodes, error) {
 		nodes := types.Nodes{}
-		if err := rx.Joins("AuthKey").Where(`"AuthKey"."ephemeral" = true`).Find(&nodes).Error; err != nil {
+
+		err := rx.Joins("AuthKey").Where(`"AuthKey"."ephemeral" = true`).Find(&nodes).Error
+		if err != nil {
 			return nil, err
 		}
 
@@ -207,6 +219,7 @@ func SetTags(
 
 	slices.Sort(tags)
 	tags = slices.Compact(tags)
+
 	b, err := json.Marshal(tags)
 	if err != nil {
 		return err
@@ -220,7 +233,7 @@ func SetTags(
 	return nil
 }
 
-// SetTags takes a Node struct pointer and update the forced tags.
+// SetApprovedRoutes takes a Node struct pointer and updates the approved routes.
 func SetApprovedRoutes(
 	tx *gorm.DB,
 	nodeID types.NodeID,
@@ -228,7 +241,8 @@ func SetApprovedRoutes(
 ) error {
 	if len(routes) == 0 {
 		// if no routes are provided, we remove all
-		if err := tx.Model(&types.Node{}).Where("id = ?", nodeID).Update("approved_routes", "[]").Error; err != nil {
+		err := tx.Model(&types.Node{}).Where("id = ?", nodeID).Update("approved_routes", "[]").Error
+		if err != nil {
 			return fmt.Errorf("removing approved routes: %w", err)
 		}
 
@@ -251,7 +265,7 @@ func SetApprovedRoutes(
 		return err
 	}
 
-	if err := tx.Model(&types.Node{}).Where("id = ?", nodeID).Update("approved_routes", string(b)).Error; err != nil {
+	if err := tx.Model(&types.Node{}).Where("id = ?", nodeID).Update("approved_routes", string(b)).Error; err != nil { //nolint:noinlineerr
 		return fmt.Errorf("updating approved routes: %w", err)
 	}
 
@@ -277,37 +291,39 @@ func SetLastSeen(tx *gorm.DB, nodeID types.NodeID, lastSeen time.Time) error {
 func RenameNode(tx *gorm.DB,
 	nodeID types.NodeID, newName string,
 ) error {
-	if err := util.ValidateHostname(newName); err != nil {
+	err := util.ValidateHostname(newName)
+	if err != nil {
 		return fmt.Errorf("renaming node: %w", err)
 	}
 
 	// Check if the new name is unique
 	var count int64
-	if err := tx.Model(&types.Node{}).Where("given_name = ? AND id != ?", newName, nodeID).Count(&count).Error; err != nil {
-		return fmt.Errorf("failed to check name uniqueness: %w", err)
+
+	err = tx.Model(&types.Node{}).Where("given_name = ? AND id != ?", newName, nodeID).Count(&count).Error
+	if err != nil {
+		return fmt.Errorf("checking name uniqueness: %w", err)
 	}
 
 	if count > 0 {
-		return errors.New("name is not unique")
+		return ErrNodeNameNotUnique
 	}
 
-	if err := tx.Model(&types.Node{}).Where("id = ?", nodeID).Update("given_name", newName).Error; err != nil {
-		return fmt.Errorf("failed to rename node in the database: %w", err)
+	if err := tx.Model(&types.Node{}).Where("id = ?", nodeID).Update("given_name", newName).Error; err != nil { //nolint:noinlineerr
+		return fmt.Errorf("renaming node in database: %w", err)
 	}
 
 	return nil
 }
 
-func (hsdb *HSDatabase) NodeSetExpiry(nodeID types.NodeID, expiry time.Time) error {
+func (hsdb *HSDatabase) NodeSetExpiry(nodeID types.NodeID, expiry *time.Time) error {
 	return hsdb.Write(func(tx *gorm.DB) error {
 		return NodeSetExpiry(tx, nodeID, expiry)
 	})
 }
 
-// NodeSetExpiry takes a Node struct and  a new expiry time.
-func NodeSetExpiry(tx *gorm.DB,
-	nodeID types.NodeID, expiry time.Time,
-) error {
+// NodeSetExpiry sets a new expiry time for a node.
+// If expiry is nil, the node's expiry is disabled (node will never expire).
+func NodeSetExpiry(tx *gorm.DB, nodeID types.NodeID, expiry *time.Time) error {
 	return tx.Model(&types.Node{}).Where("id = ?", nodeID).Update("expiry", expiry).Error
 }
 
@@ -323,7 +339,8 @@ func DeleteNode(tx *gorm.DB,
 	node *types.Node,
 ) error {
 	// Unscoped causes the node to be fully removed from the database.
-	if err := tx.Unscoped().Delete(&types.Node{}, node.ID).Error; err != nil {
+	err := tx.Unscoped().Delete(&types.Node{}, node.ID).Error
+	if err != nil {
 		return err
 	}
 
@@ -337,9 +354,11 @@ func (hsdb *HSDatabase) DeleteEphemeralNode(
 	nodeID types.NodeID,
 ) error {
 	return hsdb.Write(func(tx *gorm.DB) error {
-		if err := tx.Unscoped().Delete(&types.Node{}, nodeID).Error; err != nil {
+		err := tx.Unscoped().Delete(&types.Node{}, nodeID).Error
+		if err != nil {
 			return err
 		}
+
 		return nil
 	})
 }
@@ -352,19 +371,19 @@ func RegisterNodeForTest(tx *gorm.DB, node types.Node, ipv4 *netip.Addr, ipv6 *n
 	}
 
 	logEvent := log.Debug().
-		Str("node", node.Hostname).
-		Str("machine_key", node.MachineKey.ShortString()).
-		Str("node_key", node.NodeKey.ShortString())
+		Str(zf.NodeHostname, node.Hostname).
+		Str(zf.MachineKey, node.MachineKey.ShortString()).
+		Str(zf.NodeKey, node.NodeKey.ShortString())
 
 	if node.User != nil {
-		logEvent = logEvent.Str("user", node.User.Username())
+		logEvent = logEvent.Str(zf.UserName, node.User.Username())
 	} else if node.UserID != nil {
-		logEvent = logEvent.Uint("user_id", *node.UserID)
+		logEvent = logEvent.Uint(zf.UserID, *node.UserID)
 	} else {
-		logEvent = logEvent.Str("user", "none")
+		logEvent = logEvent.Str(zf.UserName, "none")
 	}
 
-	logEvent.Msg("Registering test node")
+	logEvent.Msg("registering test node")
 
 	// If the a new node is registered with the same machine key, to the same user,
 	// update the existing node.
@@ -379,6 +398,7 @@ func RegisterNodeForTest(tx *gorm.DB, node types.Node, ipv4 *netip.Addr, ipv6 *n
 		if ipv4 == nil {
 			ipv4 = oldNode.IPv4
 		}
+
 		if ipv6 == nil {
 			ipv6 = oldNode.IPv6
 		}
@@ -388,16 +408,17 @@ func RegisterNodeForTest(tx *gorm.DB, node types.Node, ipv4 *netip.Addr, ipv6 *n
 	// so we store the node.Expire and node.Nodekey that has been set when
 	// adding it to the registrationCache
 	if node.IPv4 != nil || node.IPv6 != nil {
-		if err := tx.Save(&node).Error; err != nil {
-			return nil, fmt.Errorf("failed register existing node in the database: %w", err)
+		err := tx.Save(&node).Error
+		if err != nil {
+			return nil, fmt.Errorf("registering existing node in database: %w", err)
 		}
 
 		log.Trace().
 			Caller().
-			Str("node", node.Hostname).
-			Str("machine_key", node.MachineKey.ShortString()).
-			Str("node_key", node.NodeKey.ShortString()).
-			Str("user", node.User.Username()).
+			Str(zf.NodeHostname, node.Hostname).
+			Str(zf.MachineKey, node.MachineKey.ShortString()).
+			Str(zf.NodeKey, node.NodeKey.ShortString()).
+			Str(zf.UserName, node.User.Username()).
 			Msg("Test node authorized again")
 
 		return &node, nil
@@ -407,29 +428,30 @@ func RegisterNodeForTest(tx *gorm.DB, node types.Node, ipv4 *netip.Addr, ipv6 *n
 	node.IPv6 = ipv6
 
 	var err error
+
 	node.Hostname, err = util.NormaliseHostname(node.Hostname)
 	if err != nil {
 		newHostname := util.InvalidString()
-		log.Info().Err(err).Str("invalid-hostname", node.Hostname).Str("new-hostname", newHostname).Msgf("Invalid hostname, replacing")
+		log.Info().Err(err).Str(zf.InvalidHostname, node.Hostname).Str(zf.NewHostname, newHostname).Msgf("invalid hostname, replacing")
 		node.Hostname = newHostname
 	}
 
 	if node.GivenName == "" {
 		givenName, err := EnsureUniqueGivenName(tx, node.Hostname)
 		if err != nil {
-			return nil, fmt.Errorf("failed to ensure unique given name: %w", err)
+			return nil, fmt.Errorf("ensuring unique given name: %w", err)
 		}
 
 		node.GivenName = givenName
 	}
 
-	if err := tx.Save(&node).Error; err != nil {
-		return nil, fmt.Errorf("failed register(save) node in the database: %w", err)
+	if err := tx.Save(&node).Error; err != nil { //nolint:noinlineerr
+		return nil, fmt.Errorf("saving node to database: %w", err)
 	}
 
 	log.Trace().
 		Caller().
-		Str("node", node.Hostname).
+		Str(zf.NodeHostname, node.Hostname).
 		Msg("Test node registered with the database")
 
 	return &node, nil
@@ -491,8 +513,10 @@ func generateGivenName(suppliedName string, randomSuffix bool) (string, error) {
 
 func isUniqueName(tx *gorm.DB, name string) (bool, error) {
 	nodes := types.Nodes{}
-	if err := tx.
-		Where("given_name = ?", name).Find(&nodes).Error; err != nil {
+
+	err := tx.
+		Where("given_name = ?", name).Find(&nodes).Error
+	if err != nil {
 		return false, err
 	}
 
@@ -646,7 +670,7 @@ func (hsdb *HSDatabase) CreateNodeForTest(user *types.User, hostname ...string)
 		panic("CreateNodeForTest requires a valid user")
 	}
 
-	nodeName := "testnode"
+	nodeName := defaultTestNodePrefix
 	if len(hostname) > 0 && hostname[0] != "" {
 		nodeName = hostname[0]
 	}
@@ -657,6 +681,7 @@ func (hsdb *HSDatabase) CreateNodeForTest(user *types.User, hostname ...string)
 		panic(fmt.Sprintf("failed to create preauth key for test node: %v", err))
 	}
 
+	pakID := pak.ID
 	nodeKey := key.NewNode()
 	machineKey := key.NewMachine()
 	discoKey := key.NewDisco()
@@ -668,7 +693,7 @@ func (hsdb *HSDatabase) CreateNodeForTest(user *types.User, hostname ...string)
 		Hostname:       nodeName,
 		UserID:         &user.ID,
 		RegisterMethod: util.RegisterMethodAuthKey,
-		AuthKeyID:      ptr.To(pak.ID),
+		AuthKeyID:      &pakID,
 	}
 
 	err = hsdb.DB.Save(node).Error
@@ -694,9 +719,12 @@ func (hsdb *HSDatabase) CreateRegisteredNodeForTest(user *types.User, hostname .
 	}
 
 	var registeredNode *types.Node
+
 	err = hsdb.DB.Transaction(func(tx *gorm.DB) error {
 		var err error
+
 		registeredNode, err = RegisterNodeForTest(tx, *node, ipv4, ipv6)
+
 		return err
 	})
 	if err != nil {
@@ -715,7 +743,7 @@ func (hsdb *HSDatabase) CreateNodesForTest(user *types.User, count int, hostname
 		panic("CreateNodesForTest requires a valid user")
 	}
 
-	prefix := "testnode"
+	prefix := defaultTestNodePrefix
 	if len(hostnamePrefix) > 0 && hostnamePrefix[0] != "" {
 		prefix = hostnamePrefix[0]
 	}
@@ -738,7 +766,7 @@ func (hsdb *HSDatabase) CreateRegisteredNodesForTest(user *types.User, count int
 		panic("CreateRegisteredNodesForTest requires a valid user")
 	}
 
-	prefix := "testnode"
+	prefix := defaultTestNodePrefix
 	if len(hostnamePrefix) > 0 && hostnamePrefix[0] != "" {
 		prefix = hostnamePrefix[0]
 	}

hscontrol/db/node_test.go

@@ -22,7 +22,6 @@ import (
 	"tailscale.com/net/tsaddr"
 	"tailscale.com/tailcfg"
 	"tailscale.com/types/key"
-	"tailscale.com/types/ptr"
 )
 
 func TestGetNode(t *testing.T) {
@@ -102,6 +101,8 @@ func TestExpireNode(t *testing.T) {
 	pak, err := db.CreatePreAuthKey(user.TypedID(), false, false, nil, nil)
 	require.NoError(t, err)
 
+	pakID := pak.ID
+
 	_, err = db.getNode(types.UserID(user.ID), "testnode")
 	require.Error(t, err)
 
@@ -115,7 +116,7 @@ func TestExpireNode(t *testing.T) {
 		Hostname:       "testnode",
 		UserID:         &user.ID,
 		RegisterMethod: util.RegisterMethodAuthKey,
-		AuthKeyID:      ptr.To(pak.ID),
+		AuthKeyID:      &pakID,
 		Expiry:         &time.Time{},
 	}
 	db.DB.Save(node)
@@ -127,7 +128,7 @@ func TestExpireNode(t *testing.T) {
 	assert.False(t, nodeFromDB.IsExpired())
 
 	now := time.Now()
-	err = db.NodeSetExpiry(nodeFromDB.ID, now)
+	err = db.NodeSetExpiry(nodeFromDB.ID, &now)
 	require.NoError(t, err)
 
 	nodeFromDB, err = db.getNode(types.UserID(user.ID), "testnode")
@@ -136,6 +137,48 @@ func TestExpireNode(t *testing.T) {
 	assert.True(t, nodeFromDB.IsExpired())
 }
 
+func TestDisableNodeExpiry(t *testing.T) {
+	db, err := newSQLiteTestDB()
+	require.NoError(t, err)
+
+	user, err := db.CreateUser(types.User{Name: "test"})
+	require.NoError(t, err)
+
+	pak, err := db.CreatePreAuthKey(user.TypedID(), false, false, nil, nil)
+	require.NoError(t, err)
+
+	pakID := pak.ID
+	node := &types.Node{
+		ID:             0,
+		MachineKey:     key.NewMachine().Public(),
+		NodeKey:        key.NewNode().Public(),
+		Hostname:       "testnode",
+		UserID:         &user.ID,
+		RegisterMethod: util.RegisterMethodAuthKey,
+		AuthKeyID:      &pakID,
+		Expiry:         &time.Time{},
+	}
+	db.DB.Save(node)
+
+	// Set an expiry first.
+	past := time.Now().Add(-time.Hour)
+	err = db.NodeSetExpiry(node.ID, &past)
+	require.NoError(t, err)
+
+	nodeFromDB, err := db.getNode(types.UserID(user.ID), "testnode")
+	require.NoError(t, err)
+	assert.True(t, nodeFromDB.IsExpired(), "node should be expired")
+
+	// Disable expiry by setting nil.
+	err = db.NodeSetExpiry(node.ID, nil)
+	require.NoError(t, err)
+
+	nodeFromDB, err = db.getNode(types.UserID(user.ID), "testnode")
+	require.NoError(t, err)
+	assert.False(t, nodeFromDB.IsExpired(), "node should not be expired after disabling expiry")
+	assert.Nil(t, nodeFromDB.Expiry, "expiry should be nil after disabling")
+}
+
 func TestSetTags(t *testing.T) {
 	db, err := newSQLiteTestDB()
 	require.NoError(t, err)
@@ -146,6 +189,8 @@ func TestSetTags(t *testing.T) {
 	pak, err := db.CreatePreAuthKey(user.TypedID(), false, false, nil, nil)
 	require.NoError(t, err)
 
+	pakID := pak.ID
+
 	_, err = db.getNode(types.UserID(user.ID), "testnode")
 	require.Error(t, err)
 
@@ -159,7 +204,7 @@ func TestSetTags(t *testing.T) {
 		Hostname:       "testnode",
 		UserID:         &user.ID,
 		RegisterMethod: util.RegisterMethodAuthKey,
-		AuthKeyID:      ptr.To(pak.ID),
+		AuthKeyID:      &pakID,
 	}
 
 	trx := db.DB.Save(node)
@@ -187,6 +232,7 @@ func TestHeadscale_generateGivenName(t *testing.T) {
 		suppliedName string
 		randomSuffix bool
 	}
+
 	tests := []struct {
 		name    string
 		args    args
@@ -443,7 +489,7 @@ func TestAutoApproveRoutes(t *testing.T) {
 					Hostinfo: &tailcfg.Hostinfo{
 						RoutableIPs: tt.routes,
 					},
-					IPv4: ptr.To(netip.MustParseAddr("100.64.0.1")),
+					IPv4: new(netip.MustParseAddr("100.64.0.1")),
 				}
 
 				err = adb.DB.Save(&node).Error
@@ -460,17 +506,17 @@ func TestAutoApproveRoutes(t *testing.T) {
 						RoutableIPs: tt.routes,
 					},
 					Tags: []string{"tag:exit"},
-					IPv4: ptr.To(netip.MustParseAddr("100.64.0.2")),
+					IPv4: new(netip.MustParseAddr("100.64.0.2")),
 				}
 
 				err = adb.DB.Save(&nodeTagged).Error
 				require.NoError(t, err)
 
 				users, err := adb.ListUsers()
-				assert.NoError(t, err)
+				require.NoError(t, err)
 
 				nodes, err := adb.ListNodes()
-				assert.NoError(t, err)
+				require.NoError(t, err)
 
 				pm, err := pmf(users, nodes.ViewSlice())
 				require.NoError(t, err)
@@ -498,6 +544,7 @@ func TestAutoApproveRoutes(t *testing.T) {
 				if len(expectedRoutes1) == 0 {
 					expectedRoutes1 = nil
 				}
+
 				if diff := cmp.Diff(expectedRoutes1, node1ByID.AllApprovedRoutes(), util.Comparers...); diff != "" {
 					t.Errorf("unexpected enabled routes (-want +got):\n%s", diff)
 				}
@@ -509,6 +556,7 @@ func TestAutoApproveRoutes(t *testing.T) {
 				if len(expectedRoutes2) == 0 {
 					expectedRoutes2 = nil
 				}
+
 				if diff := cmp.Diff(expectedRoutes2, node2ByID.AllApprovedRoutes(), util.Comparers...); diff != "" {
 					t.Errorf("unexpected enabled routes (-want +got):\n%s", diff)
 				}
@@ -520,6 +568,7 @@ func TestAutoApproveRoutes(t *testing.T) {
 func TestEphemeralGarbageCollectorOrder(t *testing.T) {
 	want := []types.NodeID{1, 3}
 	got := []types.NodeID{}
+
 	var mu sync.Mutex
 
 	deletionCount := make(chan struct{}, 10)
@@ -527,6 +576,7 @@ func TestEphemeralGarbageCollectorOrder(t *testing.T) {
 	e := NewEphemeralGarbageCollector(func(ni types.NodeID) {
 		mu.Lock()
 		defer mu.Unlock()
+
 		got = append(got, ni)
 
 		deletionCount <- struct{}{}
@@ -576,8 +626,10 @@ func TestEphemeralGarbageCollectorOrder(t *testing.T) {
 }
 
 func TestEphemeralGarbageCollectorLoads(t *testing.T) {
-	var got []types.NodeID
-	var mu sync.Mutex
+	var (
+		got []types.NodeID
+		mu  sync.Mutex
+	)
 
 	want := 1000
 
@@ -589,6 +641,7 @@ func TestEphemeralGarbageCollectorLoads(t *testing.T) {
 
 		// Yield to other goroutines to introduce variability
 		runtime.Gosched()
+
 		got = append(got, ni)
 
 		atomic.AddInt64(&deletedCount, 1)
@@ -616,9 +669,12 @@ func TestEphemeralGarbageCollectorLoads(t *testing.T) {
 	}
 }
 
-func generateRandomNumber(t *testing.T, max int64) int64 {
+//nolint:unused
+func generateRandomNumber(t *testing.T, maxVal int64) int64 {
 	t.Helper()
-	maxB := big.NewInt(max)
+
+	maxB := big.NewInt(maxVal)
+
 	n, err := rand.Int(rand.Reader, maxB)
 	if err != nil {
 		t.Fatalf("getting random number: %s", err)
@@ -642,6 +698,9 @@ func TestListEphemeralNodes(t *testing.T) {
 	pakEph, err := db.CreatePreAuthKey(user.TypedID(), false, true, nil, nil)
 	require.NoError(t, err)
 
+	pakID := pak.ID
+	pakEphID := pakEph.ID
+
 	node := types.Node{
 		ID:             0,
 		MachineKey:     key.NewMachine().Public(),
@@ -649,7 +708,7 @@ func TestListEphemeralNodes(t *testing.T) {
 		Hostname:       "test",
 		UserID:         &user.ID,
 		RegisterMethod: util.RegisterMethodAuthKey,
-		AuthKeyID:      ptr.To(pak.ID),
+		AuthKeyID:      &pakID,
 	}
 
 	nodeEph := types.Node{
@@ -659,7 +718,7 @@ func TestListEphemeralNodes(t *testing.T) {
 		Hostname:       "ephemeral",
 		UserID:         &user.ID,
 		RegisterMethod: util.RegisterMethodAuthKey,
-		AuthKeyID:      ptr.To(pakEph.ID),
+		AuthKeyID:      &pakEphID,
 	}
 
 	err = db.DB.Save(&node).Error
@@ -722,7 +781,7 @@ func TestNodeNaming(t *testing.T) {
 	nodeInvalidHostname := types.Node{
 		MachineKey:     key.NewMachine().Public(),
 		NodeKey:        key.NewNode().Public(),
-		Hostname:       "我的电脑",
+		Hostname:       "我的电脑", //nolint:gosmopolitan // intentional i18n test data
 		UserID:         &user2.ID,
 		RegisterMethod: util.RegisterMethodAuthKey,
 	}
@@ -746,12 +805,15 @@ func TestNodeNaming(t *testing.T) {
 		if err != nil {
 			return err
 		}
+
 		_, err = RegisterNodeForTest(tx, node2, nil, nil)
 		if err != nil {
 			return err
 		}
-		_, err = RegisterNodeForTest(tx, nodeInvalidHostname, ptr.To(mpp("100.64.0.66/32").Addr()), nil)
-		_, err = RegisterNodeForTest(tx, nodeShortHostname, ptr.To(mpp("100.64.0.67/32").Addr()), nil)
+
+		_, _ = RegisterNodeForTest(tx, nodeInvalidHostname, new(mpp("100.64.0.66/32").Addr()), nil)
+		_, err = RegisterNodeForTest(tx, nodeShortHostname, new(mpp("100.64.0.67/32").Addr()), nil)
+
 		return err
 	})
 	require.NoError(t, err)
@@ -810,25 +872,25 @@ func TestNodeNaming(t *testing.T) {
 	err = db.Write(func(tx *gorm.DB) error {
 		return RenameNode(tx, nodes[0].ID, "test")
 	})
-	assert.ErrorContains(t, err, "name is not unique")
+	require.ErrorContains(t, err, "name is not unique")
 
 	// Rename invalid chars
 	err = db.Write(func(tx *gorm.DB) error {
-		return RenameNode(tx, nodes[2].ID, "我的电脑")
+		return RenameNode(tx, nodes[2].ID, "我的电脑") //nolint:gosmopolitan // intentional i18n test data
 	})
-	assert.ErrorContains(t, err, "invalid characters")
+	require.ErrorContains(t, err, "invalid characters")
 
 	// Rename too short
 	err = db.Write(func(tx *gorm.DB) error {
 		return RenameNode(tx, nodes[3].ID, "a")
 	})
-	assert.ErrorContains(t, err, "at least 2 characters")
+	require.ErrorContains(t, err, "at least 2 characters")
 
 	// Rename with emoji
 	err = db.Write(func(tx *gorm.DB) error {
 		return RenameNode(tx, nodes[0].ID, "hostname-with-💩")
 	})
-	assert.ErrorContains(t, err, "invalid characters")
+	require.ErrorContains(t, err, "invalid characters")
 
 	// Rename with only emoji
 	err = db.Write(func(tx *gorm.DB) error {
@@ -896,12 +958,12 @@ func TestRenameNodeComprehensive(t *testing.T) {
 		},
 		{
 			name:    "chinese_chars_with_dash_rejected",
-			newName: "server-北京-01",
+			newName: "server-北京-01", //nolint:gosmopolitan // intentional i18n test data
 			wantErr: "invalid characters",
 		},
 		{
 			name:    "chinese_only_rejected",
-			newName: "我的电脑",
+			newName: "我的电脑", //nolint:gosmopolitan // intentional i18n test data
 			wantErr: "invalid characters",
 		},
 		{
@@ -911,7 +973,7 @@ func TestRenameNodeComprehensive(t *testing.T) {
 		},
 		{
 			name:    "mixed_chinese_emoji_rejected",
-			newName: "测试💻机器",
+			newName: "测试💻机器", //nolint:gosmopolitan // intentional i18n test data
 			wantErr: "invalid characters",
 		},
 		{
@@ -1000,6 +1062,7 @@ func TestListPeers(t *testing.T) {
 		if err != nil {
 			return err
 		}
+
 		_, err = RegisterNodeForTest(tx, node2, nil, nil)
 
 		return err
@@ -1085,6 +1148,7 @@ func TestListNodes(t *testing.T) {
 		if err != nil {
 			return err
 		}
+
 		_, err = RegisterNodeForTest(tx, node2, nil, nil)
 
 		return err

hscontrol/db/policy.go

@@ -17,7 +17,8 @@ func (hsdb *HSDatabase) SetPolicy(policy string) (*types.Policy, error) {
 		Data: policy,
 	}
 
-	if err := hsdb.DB.Clauses(clause.Returning{}).Create(&p).Error; err != nil {
+	err := hsdb.DB.Clauses(clause.Returning{}).Create(&p).Error
+	if err != nil {
 		return nil, err
 	}
 

hscontrol/db/preauth_keys.go

@@ -138,8 +138,8 @@ func CreatePreAuthKey(
 		Hash:       hash,    // Store hash
 	}
 
-	if err := tx.Save(&key).Error; err != nil {
-		return nil, fmt.Errorf("failed to create key in the database: %w", err)
+	if err := tx.Save(&key).Error; err != nil { //nolint:noinlineerr
+		return nil, fmt.Errorf("creating key in database: %w", err)
 	}
 
 	return &types.PreAuthKeyNew{
@@ -155,9 +155,7 @@ func CreatePreAuthKey(
 }
 
 func (hsdb *HSDatabase) ListPreAuthKeys() ([]types.PreAuthKey, error) {
-	return Read(hsdb.DB, func(rx *gorm.DB) ([]types.PreAuthKey, error) {
-		return ListPreAuthKeys(rx)
-	})
+	return Read(hsdb.DB, ListPreAuthKeys)
 }
 
 // ListPreAuthKeys returns all PreAuthKeys in the database.
@@ -296,7 +294,7 @@ func DestroyPreAuthKey(tx *gorm.DB, id uint64) error {
 			Where("auth_key_id = ?", id).
 			Update("auth_key_id", nil).Error
 		if err != nil {
-			return fmt.Errorf("failed to clear auth_key_id on nodes: %w", err)
+			return fmt.Errorf("clearing auth_key_id on nodes: %w", err)
 		}
 
 		// Then delete the pre-auth key
@@ -325,14 +323,15 @@ func (hsdb *HSDatabase) DeletePreAuthKey(id uint64) error {
 func UsePreAuthKey(tx *gorm.DB, k *types.PreAuthKey) error {
 	err := tx.Model(k).Update("used", true).Error
 	if err != nil {
-		return fmt.Errorf("failed to update key used status in the database: %w", err)
+		return fmt.Errorf("updating key used status in database: %w", err)
 	}
 
 	k.Used = true
+
 	return nil
 }
 
-// MarkExpirePreAuthKey marks a PreAuthKey as expired.
+// ExpirePreAuthKey marks a PreAuthKey as expired.
 func ExpirePreAuthKey(tx *gorm.DB, id uint64) error {
 	now := time.Now()
 	return tx.Model(&types.PreAuthKey{}).Where("id = ?", id).Update("expiration", now).Error

hscontrol/db/preauth_keys_test.go

@@ -11,7 +11,6 @@ import (
 	"github.com/juanfont/headscale/hscontrol/util"
 	"github.com/stretchr/testify/assert"
 	"github.com/stretchr/testify/require"
-	"tailscale.com/types/ptr"
 )
 
 func TestCreatePreAuthKey(t *testing.T) {
@@ -24,7 +23,7 @@ func TestCreatePreAuthKey(t *testing.T) {
 			test: func(t *testing.T, db *HSDatabase) {
 				t.Helper()
 
-				_, err := db.CreatePreAuthKey(ptr.To(types.UserID(12345)), true, false, nil, nil)
+				_, err := db.CreatePreAuthKey(new(types.UserID(12345)), true, false, nil, nil)
 				assert.Error(t, err)
 			},
 		},
@@ -127,7 +126,7 @@ func TestCannotDeleteAssignedPreAuthKey(t *testing.T) {
 		Hostname:       "testest",
 		UserID:         &user.ID,
 		RegisterMethod: util.RegisterMethodAuthKey,
-		AuthKeyID:      ptr.To(key.ID),
+		AuthKeyID:      new(key.ID),
 	}
 	db.DB.Save(&node)
 

hscontrol/db/schema.sql

@@ -79,6 +79,8 @@ CREATE TABLE nodes(
   ipv6 text,
   hostname text,
   given_name varchar(63),
+  -- user_id is NULL for tagged nodes (owned by tags, not a user).
+  -- Only set for user-owned nodes (no tags).
   user_id integer,
   register_method text,
   tags text,
@@ -104,3 +106,9 @@ CREATE TABLE policies(
   deleted_at datetime
 );
 CREATE INDEX idx_policies_deleted_at ON policies(deleted_at);
+
+CREATE TABLE database_versions(
+  id integer PRIMARY KEY,
+  version text NOT NULL,
+  updated_at datetime
+);

hscontrol/db/sqliteconfig/config.go

@@ -362,7 +362,8 @@ func (c *Config) Validate() error {
 // ToURL builds a properly encoded SQLite connection string using _pragma parameters
 // compatible with modernc.org/sqlite driver.
 func (c *Config) ToURL() (string, error) {
-	if err := c.Validate(); err != nil {
+	err := c.Validate()
+	if err != nil {
 		return "", fmt.Errorf("invalid config: %w", err)
 	}
 
@@ -372,18 +373,23 @@ func (c *Config) ToURL() (string, error) {
 	if c.BusyTimeout > 0 {
 		pragmas = append(pragmas, fmt.Sprintf("busy_timeout=%d", c.BusyTimeout))
 	}
+
 	if c.JournalMode != "" {
 		pragmas = append(pragmas, fmt.Sprintf("journal_mode=%s", c.JournalMode))
 	}
+
 	if c.AutoVacuum != "" {
 		pragmas = append(pragmas, fmt.Sprintf("auto_vacuum=%s", c.AutoVacuum))
 	}
+
 	if c.WALAutocheckpoint >= 0 {
 		pragmas = append(pragmas, fmt.Sprintf("wal_autocheckpoint=%d", c.WALAutocheckpoint))
 	}
+
 	if c.Synchronous != "" {
 		pragmas = append(pragmas, fmt.Sprintf("synchronous=%s", c.Synchronous))
 	}
+
 	if c.ForeignKeys {
 		pragmas = append(pragmas, "foreign_keys=ON")
 	}

hscontrol/db/sqliteconfig/config_test.go

@@ -294,6 +294,7 @@ func TestConfigToURL(t *testing.T) {
 				t.Errorf("Config.ToURL() error = %v", err)
 				return
 			}
+
 			if got != tt.want {
 				t.Errorf("Config.ToURL() = %q, want %q", got, tt.want)
 			}
@@ -306,6 +307,7 @@ func TestConfigToURLInvalid(t *testing.T) {
 		Path:        "",
 		BusyTimeout: -1,
 	}
+
 	_, err := config.ToURL()
 	if err == nil {
 		t.Error("Config.ToURL() with invalid config should return error")