ci: publish oci image outside of parallel block

[aramprice]

No description provided.

[coderabbitai]

No actionable comments were generated in the recent review. 🎉

ℹ️ Recent review info

⚙️ Run configuration

Configuration used: Organization UI

Review profile: ASSERTIVE

Plan: Pro

Run ID: fd93bd31-c7d1-4d42-a1d1-bcf31f155ad0

📥 Commits

Reviewing files that changed from the base of the PR and between 187e842 and 8695569.

📒 Files selected for processing (1)

• ci/pipelines/publisher.yml

---

Walkthrough

The ci/pipelines/publisher.yml job for publishing stemcells is restructured to reorganize the OCI image publication workflow. The extract-warden-image, privileged build-stemcell-oci-image, and GitHub container registry put steps are moved from within a parallel execution block to run sequentially in the main job plan, with the subsequent parallel operations remaining intact but now following after the OCI publication sequence.

Suggested reviewers

• beyhan
• ramonskie
• benjaminguttmann-avtq

🚥 Pre-merge checks | ✅ 4 | ❌ 1

❌ Failed checks (1 warning)

Check name	Status	Explanation	Resolution
Description check	⚠️ Warning	No pull request description was provided. The repository requires following a merge-forward strategy with specific steps, but none of this context is documented.	Add a description explaining which branch this targets, whether it follows merge-forward strategy, and provide context for the OCI image restructuring change.

✅ Passed checks (4 passed)

Check name	Status	Explanation
Title check	✅ Passed	The title clearly and specifically describes the main change: moving OCI image publication steps outside a parallel block in the CI pipeline configuration.
Docstring Coverage	✅ Passed	No functions found in the changed files to evaluate docstring coverage. Skipping docstring coverage check.
Linked Issues check	✅ Passed	Check skipped because no linked issues were found for this pull request.
Out of Scope Changes check	✅ Passed	Check skipped because no linked issues were found for this pull request.

_{✏️ Tip: You can configure your own custom pre-merge checks in the settings.}

✨ Finishing Touches

🧪 Generate unit tests (beta)

• Create PR with unit tests
• Commit unit tests in branch fix-parallel

---

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.

❤️ Share

• X
• Mastodon
• Reddit
• LinkedIn

_{Comment @coderabbitai help to get the list of available commands and usage tips.}

[Copilot]

Pull request overview

This PR adjusts the Concourse publish-* job plan so that the OCI image build/push to GHCR is executed as a sequential set of steps instead of being run inside the final in_parallel publishing block.

Changes:

• Move extract-warden-image and build-stemcell-oci-image tasks out of the in_parallel block.
• Move the put to github-container-registry-<os>-stemcell out of the in_parallel block so it runs before the parallel “published-*” puts.

---

💡 Add Copilot custom instructions for smarter, more guided reviews. Learn how to get started.