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The default docker execute timeout (10s) is the root cause of "dockertest command timed out" errors across many integration tests on CI. On congested GitHub Actions runners, docker exec latency alone can consume 2-5 seconds of this budget before the command even starts inside the container. Replace the hardcoded 10s constant with a function that returns 20s on CI, doubling the budget for all container commands (tailscale status, headscale CLI, curl, etc.). Similarly, scale the default tailscale ping timeout from 200ms to 400ms on CI. This doubles the per-attempt budget and the docker exec timeout for pings (from 200ms*5=1s to 400ms*5=2s), giving more headroom for docker exec overhead. Updates #3125
Integration testing
Headscale relies on integration testing to ensure we remain compatible with Tailscale.
This is typically performed by starting a Headscale server and running a test "scenario" with an array of Tailscale clients and versions.
Headscale's test framework and the current set of scenarios are defined in this directory.
Tests are located in files ending with _test.go and the framework are located in the rest.
Running integration tests locally
The easiest way to run tests locally is to use act, a local GitHub Actions runner:
act pull_request -W .github/workflows/test-integration.yaml
Alternatively, the docker run command in each GitHub workflow file can be used.
Running integration tests on GitHub Actions
Each test currently runs as a separate workflows in GitHub actions, to add new test, run
go generate inside ../cmd/gh-action-integration-generator/ and commit the result.