mirror of
https://github.com/ryan4yin/nix-config.git
synced 2026-11-13 12:13:36 +01:00
Ryan Yin
4470b3d014
Move standalone repository docs from the root into docs/ and add a documentation index that links the moved docs and the code-local runbooks. Update Markdown links, source comments, and the root entry points to the new locations. Keep README.md and AGENTS.md at the root as required entry points. Assisted-by: DeepSeek Harness (deepseek-flash)
44 lines
1.5 KiB
Nix
44 lines
1.5 KiB
Nix
{
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myvars,
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lib,
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...
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}:
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let
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# Shared golden-image store for the VM cluster. It is exported over NFSv4 so
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# the cluster's NFS CSI driver can hand out RWX volumes to every node, and VM
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# disks are cloned from it into local-path.
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#
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# It lives on the encrypted btrfs pool (/persistent), which has plenty of
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# free space on this host.
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goldenDir = "/persistent/nfs/golden";
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# Only the hosts that actually mount the export may reach it: every k3s node
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# runs the NFS CSI node plugin, and the VM hosts clone golden disks by hand.
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# The rest of the LAN is not a client.
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k3sNodes = lib.filterAttrs (name: _: lib.hasPrefix "k3s-test-1-" name) myvars.networking.hostsAddr;
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clients = [
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myvars.networking.hostsAddr.shoryu.ipv4
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myvars.networking.hostsAddr.shushou.ipv4
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myvars.networking.hostsAddr.youko.ipv4
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]
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++ lib.mapAttrsToList (_: v: v.ipv4) k3sNodes;
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exportOpts = "rw,sync,no_subtree_check,fsid=0,no_root_squash";
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in
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{
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# Make sure the export directory exists before the NFS server starts.
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systemd.tmpfiles.rules = [
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"d ${goldenDir} 0755 root root -"
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];
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services.nfs.server.enable = true;
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services.nfs.server.exports = lib.concatStringsSep "\n" (
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map (client: "${goldenDir} ${client}(${exportOpts})") clients
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);
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# NFSv4 only needs 2049/tcp (no rpcbind/mountd/statd). The export is limited
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# to the hosts above, not the whole LAN. `no_root_squash` stays until the
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# existing root-owned PVC subdirectories are migrated for `root_squash`; see
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# docs/SECURITY.md.
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}
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