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87c230d251
Add run ID-based isolation to container naming and network setup to
enable multiple integration tests to run concurrently on the same
Docker daemon without conflicts.
Changes:
- hsic: Add run ID prefix to headscale container names and use dynamic
port allocation for metrics endpoint (port 0 lets kernel assign)
- tsic: Add run ID prefix to tailscale container names
- dsic: Add run ID prefix to DERP container names
- scenario: Use run ID-aware test suite container name for network setup
Container naming now follows: {type}-{runIDShort}-{identifier}-{hash}
Example: ts-mdjtzx-1-74-fgdyls, hs-mdjtzx-pingallbyip-abc123
The run ID is obtained from HEADSCALE_INTEGRATION_RUN_ID environment
variable via dockertestutil.GetIntegrationRunID().
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.