The Dockerfile's builder stage already runs the unit suite, so the workflow deliberately has no separate test job -- a red test cannot produce an image. After pushing, the published artifact is smoke-tested by digest: `--version` covers a runtime stage missing a shared library, and `--check` against a throwaway credentials file covers the config baked into the image. Both were failure modes a green build would not have caught. The `--check` invocation is verified locally against docker/openvpngate.conf. `latest` follows the newest v* tag rather than the branch head; master head is published as `master`. Registry paths are lowercased explicitly rather than relying on metadata-action, since the same value is reused for the smoke test. GHCR_TOKEN / GHCR_USER / GHCR_IMAGE override the built-ins so this still works from a mirror or a Gitea/Forgejo runner, where the ambient token authenticates to the wrong registry. On github.com none of them need to be set. Co-Authored-By: Claude Opus 5 <noreply@anthropic.com>
This commit is contained in:
iceBear67
co-authored by
Claude Opus 5
Claude Opus 5
parent
f37cd0a125
commit
40b47a8f66
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# Build the container image and publish it to GitHub Container Registry.
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#
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# The unit test suite runs *inside* the image build (the Dockerfile's builder
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# stage ends with ./build/tests/ovg_tests), so a failing test fails the publish.
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# There is deliberately no separate test job duplicating that.
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#
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# Tags produced:
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# push to master -> master, sha-<short>
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# push tag v1.2.3 -> 1.2.3, 1.2, latest, sha-<short>
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# pull request -> built and smoke-tested, never pushed
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#
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# `latest` follows the newest release tag, not the branch head. Until the first
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# v* tag exists, the tag to pull is `master`.
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name: publish image
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on:
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push:
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branches: [master]
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tags: ["v*"]
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pull_request:
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branches: [master]
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workflow_dispatch:
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permissions:
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contents: read
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packages: write
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concurrency:
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group: ${{ github.workflow }}-${{ github.ref }}
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# Superseding a PR build is free; killing a release build half way through is
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# not.
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cancel-in-progress: ${{ github.event_name == 'pull_request' }}
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env:
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REGISTRY: ghcr.io
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jobs:
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image:
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runs-on: ubuntu-latest
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# A cold build compiles the openvpn3 core and lwIP from source. Configure +
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# compile alone measured 1m39s on 4 cores (same core count as a
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# GitHub-hosted runner); on top of that the image build also does an apt
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# install, two git clones, and the test suite. The ceiling is set well above
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# any of that because the failure mode it guards against -- a cache miss on
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# a runner that is also being slow -- is the one where a tight limit turns a
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# slow build into a red one.
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timeout-minutes: 60
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steps:
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- uses: actions/checkout@v4
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# Registry paths must be lowercase and github.repository is not
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# guaranteed to be. GHCR_IMAGE overrides the whole owner/name, which is
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# what you need when this repository does not live on github.com -- see
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# the login step.
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- name: Resolve image name
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id: img
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run: |
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printf 'name=%s\n' \
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"$(printf '%s' "${{ vars.GHCR_IMAGE || github.repository }}" | tr '[:upper:]' '[:lower:]')" \
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>> "$GITHUB_OUTPUT"
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- uses: docker/setup-buildx-action@v3
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# Skipped on pull requests: a PR from a fork has no write credentials, and
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# nothing is pushed from a PR anyway.
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#
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# On github.com the built-in GITHUB_TOKEN is enough. Running this from a
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# mirror or a self-hosted Actions runner (Gitea/Forgejo) means that token
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# authenticates to the wrong registry, so set GHCR_TOKEN to a GitHub PAT
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# with write:packages, and GHCR_USER/GHCR_IMAGE if the account name there
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# differs from the one here.
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- name: Log in to ghcr.io
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if: github.event_name != 'pull_request'
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uses: docker/login-action@v3
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with:
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registry: ${{ env.REGISTRY }}
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username: ${{ vars.GHCR_USER || github.actor }}
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password: ${{ secrets.GHCR_TOKEN || secrets.GITHUB_TOKEN }}
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- name: Derive tags and labels
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id: meta
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uses: docker/metadata-action@v5
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with:
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images: ${{ env.REGISTRY }}/${{ steps.img.outputs.name }}
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tags: |
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type=ref,event=branch
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type=ref,event=pr
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type=semver,pattern={{version}}
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type=semver,pattern={{major}}.{{minor}}
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type=sha
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# The default flavor (latest=auto) adds `latest` on a semver tag push
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# and nowhere else, which is the intent stated at the top of the file.
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- name: Build and push
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id: build
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uses: docker/build-push-action@v6
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with:
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context: .
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push: ${{ github.event_name != 'pull_request' }}
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tags: ${{ steps.meta.outputs.tags }}
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labels: ${{ steps.meta.outputs.labels }}
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annotations: ${{ steps.meta.outputs.annotations }}
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# amd64 only, matching the project's stated target. arm64 is not known
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# to be broken -- it is untested, and cross-building the openvpn3 core
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# under QEMU costs the better part of an hour per run. Enabling it
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# means adding docker/setup-qemu-action above and verifying lwIP's
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# unaligned-access assumptions, not just editing this line.
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platforms: linux/amd64
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build-args: |
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OVG_WITH_TUNNEL=ON
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OVG_RUN_TESTS=1
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# Without this every run recompiles openvpn3 from scratch.
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cache-from: type=gha
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cache-to: type=gha,mode=max
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provenance: mode=max
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sbom: true
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# Verifies the artifact that was actually published, by digest rather than
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# by tag. Cheap, and it covers the two things a green build still would
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# not: that the runtime stage carries the shared libraries the binary
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# needs, and that the config baked into the image parses.
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#
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# --check needs the credentials file, which is deliberately not in the
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# image; a throwaway one is enough to get the config validated.
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- name: Smoke test the published image
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if: github.event_name != 'pull_request'
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env:
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IMAGE: ${{ env.REGISTRY }}/${{ steps.img.outputs.name }}@${{ steps.build.outputs.digest }}
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run: |
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set -eux
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docker run --rm "$IMAGE" --version
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printf 'ci:changeme\n' > "$RUNNER_TEMP/socks5.auth"
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docker run --rm \
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-v "$RUNNER_TEMP/socks5.auth:/etc/openvpngate/socks5.auth:ro" \
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"$IMAGE" -c /etc/openvpngate/openvpngate.conf --check
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- name: Summary
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if: github.event_name != 'pull_request'
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run: |
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{
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echo "### Published"
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echo
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echo '```'
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echo "${{ steps.meta.outputs.tags }}"
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echo '```'
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echo
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echo "digest: \`${{ steps.build.outputs.digest }}\`"
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} >> "$GITHUB_STEP_SUMMARY"
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