[igorpecovnik]

Goal: CI builds use the runner's OCI cache.

Export the runner's oci_cache as OCI_PROXY instead of GHCR_MIRROR_ADDRESS. The build ignored GHCR_MIRROR_ADDRESS without GHCR_MIRROR=dockerproxy.

• Needs oci: configurable OCI storage and read-only OCI_PROXY build#10860. Merge order is safe either way.
• Only stpete has oci_cache set.

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ℹ️ Recent review info

⚙️ Run configuration

Configuration used: Organization UI

Review profile: CHILL

Plan: Advanced

Run ID: 533fa965-6152-42f8-86e3-df56396122e1

📥 Commits

Reviewing files that changed from the base of the PR and between 59d46ed and 1d84a89.

📒 Files selected for processing (2)

• .github/workflows/build-artifacts-chunk.yml
• .github/workflows/build-images-chunk.yml

Included review availability: This review used your included allowance. Your plan provides up to 1 included review per hour; 0 remain after this review.

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Walkthrough

Both chunk workflows now map the oci_cache runner-map entry to OCI_PROXY instead of GHCR_MIRROR_ADDRESS. The workflow comments now identify OCI_PROXY as the proxy variable. Other runner mappings and the artifact workflow’s proxy-variable clearing loop remain unchanged.

Priority: ⬇️ Low

Estimated code review effort: 2 (Simple) | ~5 minutes

Change: Bug fix

Merge Risk: ⚪ Minimal · up to 1d84a

The workflow mapping is correctly handed to the build step; compatibility with the selected external build revision should be covered by normal integration validation.

Architecture Summary

Architecture risk: 🔵 Low · up to 1d84a

The changed surface does not map to a changed system, dependency edge, entrypoint, or external dependency.

Changed systems: None identified.

Architecture concerns
No architecture-level concerns identified.

Review details

Before / after behavior

• observed — Modified behavior in .github/workflows/build-artifacts-chunk.yml: The runner map now exports oci_cache as OCI_PROXY rather than GHCR_MIRROR_ADDRESS; the comment describing the map is updated to name OCI_PROXY. The ambient proxy-variable clearing loop is unchanged.
• observed — Modified behavior in .github/workflows/build-images-chunk.yml: The runner-map comment now identifies OCI_PROXY as the proxy variable, and the oci_cache entry is mapped to OCI_PROXY instead of GHCR_MIRROR_ADDRESS. The other mappings remain unchanged.

🚥 Pre-merge checks | ✅ 5

✅ Passed checks (5 passed)

Check name	Status	Explanation
Title check	✅ Passed	The title clearly and concisely states the main change: exporting the runner's oci_cache as OCI_PROXY in chunk workflows.
Description check	✅ Passed	The description directly explains the CI cache change, the variable replacement, the dependency, and the affected runner configuration.
Docstring Coverage	✅ Passed	No functions found in the changed files to evaluate docstring coverage. Skipping docstring coverage check. Docstring coverage is scoped to functions touched by this diff. Analyzed 0 functions across 0…
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.

✨ Finishing Touches

🧪 Generate unit tests (beta)

• Commit to this branch
• Create a new PR

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