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fix(ci): deploy main after a merge when prod is behind it - #3870
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Expose the convergence verdict as a job output and dispatch the gated CD workflow on main when it reads BEHIND. The observer now waits on the prod-deploy lock so it cannot read :latest before an in-flight heal publishes. DIVERGED and UNKNOWN never deploy. Fixes #3869 Co-Authored-By: Claude Opus 5 (1M context) <noreply@anthropic.com>
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No actionable comments were generated in the recent review. 🎉 ℹ️ Recent review info⚙️ Run configurationConfiguration used: Repository YAML (base), Organization UI (inherited) Review profile: ASSERTIVE Plan: Advanced Run ID: 📒 Files selected for processing (6)
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📚 Learning: 2026-07-28T00:33:10.828ZApplied to files:
🔇 Additional comments (6)
📝 WalkthroughWalkthroughThe report script now exposes successful convergence verdicts through Priority: ⬇️ Low Merge Risk: ⚪ Minimal · up to The conditional redeploy path matches the existing CD dispatch contract and preserves the pending-deployment guard. No actionable merge-blocking issue remains. 🚥 Pre-merge checks | ✅ 4 | ❌ 1❌ Failed checks (1 warning)
✅ Passed checks (4 passed)
Full details: Docstring CoverageExplanation Docstring coverage is 28.57% which is insufficient. The required threshold is 80.00%. Docstring coverage is scoped to functions touched by this diff. Analyzed 7 functions across 4 files. (2 skipped: 2 unsupported.) Thanks for using CodeRabbit! It's free for OSS, and your support helps us grow. If you like it, consider giving us a shout-out. Comment |
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Inline comments:
In @.github/workflows/validate-main.yaml:
- Line 501: Keep the deployment lock held through the CD dispatch decision:
update the observe-prod-convergence/redeploy-prod-when-behind flow to record or
query pending main deployments before releasing the lock, and make subsequently
queued observers skip dispatch when one is pending. Add a burst-push test that
queues two observers before the first CD run starts.
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ℹ️ Review info
⚙️ Run configuration
Configuration used: Repository YAML (base), Organization UI (inherited)
Review profile: ASSERTIVE
Plan: Advanced
Run ID: 7f96ec42-413e-476c-b63b-2b8c3f97daf2
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.github/workflows/validate-main.yamlscripts/report-prod-convergence.shscripts/tests/test-report-prod-convergence.sh
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📜 Review details
🧰 Additional context used
🧠 Learnings (2)
📚 Learning: 2026-07-28T00:33:10.828Z
Learnt from: devantler
Repo: devantler-tech/platform PR: 2825
File: .github/workflows/dr-rebuild.yaml:70-73
Timestamp: 2026-07-28T00:33:10.828Z
Learning: For GitHub Actions concurrency configuration in this repo, don’t use `queue: single` on a shared production concurrency group (e.g., `prod-deploy`) that is used for normal production deployments—`queue: single` will cancel/replace any pending run in that group. Normal production deployments must use a uniform `queue: max` for that shared group to ensure serialization without coalescing. If you need DR rebuild coalescing (replacement of pending DR rebuild runs), it must use a separate DR-only concurrency scope/group (not the shared production `prod-deploy` group).
Applied to files:
.github/workflows/validate-main.yaml
📚 Learning: 2026-08-10T13:01:12.782Z
Learnt from: devantler
Repo: devantler-tech/platform PR: 3057
File: .github/workflows/ci.yaml:622-659
Timestamp: 2026-08-10T13:01:12.782Z
Learning: Repository shell tests and scripts must remain compatible with macOS Bash 3.2. Do not use Bash 4+ features such as `mapfile`; use portable constructs, such as a `while IFS= read -r` loop, instead.
Applied to files:
scripts/tests/test-report-prod-convergence.sh
Dispatch CD from inside the lock-holding observer instead of a separate job. Skip when a CD run for main's tip is already pending, and wait until a new dispatch is listed before releasing the lock, so a burst of pushes cannot stack redundant deploys. Co-Authored-By: Claude Opus 5 (1M context) <noreply@anthropic.com>
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Why
A merge that lands just after another group's heal can leave prod running an older
mainuntil some later deploy happens (#2838). The post-merge convergence check already sees this asBEHIND, but only warns.What
When the check reads
BEHIND, it now starts the normal CD deploy ofmain, with all of its production gates.CONVERGED,DIVERGED(a queued group that deployed but has not merged yet) and a failed check never deploy. The check also waits for any deploy already in progress before reading, so it cannot read prod before a heal finishes.Operational note: each push to
mainnow briefly takes the production deploy lock (about a minute) while it reads.Fixes #3869