ci: decouple Trivy CVE scan from the release path - #294
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The `scan` job in docker-build.yml ran `needs: merge`, i.e. after both manifest lists were already pushed to Docker Hub. A non-zero Trivy exit therefore could not stop a vulnerable image from shipping. Its only real effect was to fail the reusable workflow's conclusion, which skipped `notify-helm-charts` in release-please.yml and silently withheld the chart-sync PR for an image that was already live. That is what happened on v1.17.0 (run 33685647080): release, all four builds and both manifest merges succeeded, then the two orchestrator scan legs went red on a util-linux DSA published after the code was written, and the helm-charts dispatch never fired. The chart PR had to be sent by hand. Move the scan to its own workflow so each signal means one thing: docker-build.yml conclusion -> the images built and published trivy-scan.yml conclusion -> the published images are CVE-clean Scanning on a daily schedule rather than only at release time is the other half of the fix. Trivy verdicts move when advisories are published, not when this repo changes, so a release-time-only scan reports a stale view and reports it at the least useful moment. No `release: published` trigger: release-please creates the release before docker-build.yml has pushed the manifest lists, so such a run would race the build and fail on `manifest unknown`. Scan a specific release on demand via workflow_dispatch once the build is green. Scan behaviour is otherwise carried over unchanged: same action SHA, same severity filter, same .trivyignore.yaml, same per-variant exit codes (orchestrator gates, daemon reports), same SARIF categories so existing GitHub Security alerts stay continuous. Drops the now-unused `security-events: write` grant from docker-build.yml and from release-please.yml's `docker` job ceiling. Co-Authored-By: Claude Opus 5 <noreply@anthropic.com> Claude-Session: https://claude.ai/code/session_01KUPpJPtxAaHWrBsjytRGyM
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Included review availability: Your plan provides up to 1 included review per hour; 0 remain after this review. 📝 WalkthroughWalkthroughChangesThe release workflows no longer run Trivy scans or grant scan-specific permissions. A new scheduled and manually triggered workflow scans published Docker Hub images across architectures and variants, uploads SARIF results, and gates orchestrator scans. Documentation now reflects the new workflow and attestation location. CVE scan workflow
Estimated code review effort: 3 (Moderate) | ~25 minutes Merge Risk: ⚪ Minimal · up to CVE scanning is moved to a separate scheduled and manually triggered workflow while release publishing and Helm synchronization are no longer blocked by post-publication scan failures. The documented disabled attestation verification state and scan behavior are consistent with the intended change, with no remaining merge-blocking risk identified. Sequence Diagram(s)sequenceDiagram
participant GitHub Actions
participant Docker Hub
participant Trivy
participant GitHub Security tab
GitHub Actions->>Docker Hub: Authenticate and pull published image
GitHub Actions->>Trivy: Scan image for CRITICAL and HIGH findings
Trivy-->>GitHub Actions: Return scan result and SARIF file
GitHub Actions->>GitHub Security tab: Upload SARIF results
🚥 Pre-merge checks | ✅ 5✅ Passed checks (5 passed)
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Inline comments:
In `@docs/operate/deployment.md`:
- Line 101: Correct the attestation-verification claims in
docs/operate/deployment.md lines 101-101 and docs/operate/observability.md lines
596-596: state that verification is currently disabled, or implement the missing
verification steps in .github/workflows/trivy-scan.yml; ensure both documents
consistently describe the actual workflow behavior and do not promise a
nonexistent regression gate.
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.github/workflows/docker-build.yml.github/workflows/release-please.yml.github/workflows/trivy-scan.ymlCLAUDE.mddocs/build/conventions.mddocs/operate/deployment.mddocs/operate/observability.md
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…s docs Deleting the `scan:` job from docker-build.yml also deleted its commented-out `Verify image attestations` step, which docs/operate/deployment.md explicitly says is "retained in place for re-enablement". Restored into trivy-scan.yml, where the scan job now lives, with a note that re-enabling also needs `attestations: read` on that workflow's permissions block. The two doc sentences were a mechanical filename swap that preserved a claim describing commented-out code, then pointed it at a file that did not contain it at all. Both now state plainly that nothing verifies attestations today. Co-Authored-By: Claude Opus 5 <noreply@anthropic.com> Claude-Session: https://claude.ai/code/session_01KUPpJPtxAaHWrBsjytRGyM
Review feedback: comments explaining what was removed and why belong in the commit message, not in a file a future reader opens with no memory of the change. Cuts the "CVE scanning is NOT here" block, the security-events absence notes in both permissions blocks, the notify-helm-charts suppression note, and trims trivy-scan.yml's header to the decisions that still bind (why it is separate, why scheduled, why no release trigger). Co-Authored-By: Claude Opus 5 <noreply@anthropic.com> Claude-Session: https://claude.ai/code/session_01KUPpJPtxAaHWrBsjytRGyM
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Comment cleanup applied in 7815f31. Your three inline comments were all the same problem, so I applied the cut in two more places you didn't flag:
Net: -43 comment lines, +18. The rule I should have applied: a comment justifying an absence ("no |
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Problem
v1.17.0released fine but never got its helm-charts sync PR. Run 33685647080:Release Pleasev1.17.0, GitHub release createdbuild×4Merge manifest×2Trivy scan (orchestrator / amd64 + arm64)Notify helm-chartsThe
scanjob ranneeds: merge, i.e. after both manifest lists were pushed. Soexit-code: 1could not stop a vulnerable image from shipping. Its only real effect was to fail the reusable workflow's conclusion, whichnotify-helm-chartsdepends on (release-please.yml), silently withholding the chart PR for an image that was already public. The dispatch had to be sent by hand.Nothing in the release caused it: Debian published DSAs for
util-linuxafter the code was written and the gate flipped red on its own.Fix
Move the scan into its own
trivy-scan.ymlso each conclusion means one thing:docker-build.yml→ the images built and publishedtrivy-scan.yml→ the published images are CVE-cleanDaily schedule instead of release-time-only. Trivy verdicts move when advisories are published, not when this repo changes, so a release-time scan reports a stale view at the least useful moment. A daily re-scan of
latest-*surfaces a new DSA within a day.No
release: publishedtrigger: release-please creates the release beforedocker-build.ymlpushes the manifest lists, so such a run would race the build and fail onmanifest unknown. Useworkflow_dispatchwith a version to scan a specific release once its build is green.Scan behaviour is carried over unchanged
Same action SHA, severity filter,
.trivyignore.yaml, per-variant exit codes (orchestrator gates, daemon reports), and the same SARIFcategorystrings so existing GitHub Security alerts stay continuous rather than re-opening as new.Also drops the now-unused
security-events: writegrant fromdocker-build.ymland fromrelease-please.yml'sdockerjob ceiling.What this does not do
It does not make the CVE gate real. A scan that runs after publication still cannot block publication; this PR only stops it from breaking unrelated release automation. Making it a genuine gate means scanning before push (build with
type=docker, scan the local image, then push in a second step) — a real rework of the split-and-merge pattern, deliberately out of scope here.The CVEs themselves are not fixed here (27 OS findings from the
util-linuxcluster in the base image, 4 transitive Node packages). Separate PR.Verification
actionlintclean on all three workflow filescheck:action-pins,check:runner-pins,check:docs-versions,check:docs-citations,check:no-em-dashes,check:docs-sync— all OKdocs:build(strict) cleanCaveat, stated plainly: a new workflow file gets no execution coverage from this PR.
scheduleandworkflow_dispatchonly become live once the file is on the default branch, so the first real run is post-merge. Worth a manualworkflow_dispatchright after merging to confirm the tag computation and the Docker Hub login path before relying on the daily cron.Docs
CLAUDE.md,docs/build/conventions.md(pipeline table 5 → 6 files),docs/operate/deployment.md,docs/operate/observability.md.CLAUDE.mdandconventions.mdalso record why the coupling was wrong, so it does not get reintroduced.🤖 Generated with Claude Code
https://claude.ai/code/session_01KUPpJPtxAaHWrBsjytRGyM
Summary by CodeRabbit
New Features
Documentation