Add a base image freshness check for pinned digests
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@balajinvda is already working on this.
Since Jul 26, 2026.
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Description
Description
Independent of #448.
Base images are pinned by digest, which is correct and reproducible. Nothing reports
when a newer base is published, so a patched base can go unnoticed indefinitely.
This is detection, not caching. The goal is a signal that a pinned digest has fallen
behind its tag, so a human decides whether to move it.
Definition of Done
- A scheduled check compares each pinned digest against its upstream tag.
- Drift is reported somewhere a maintainer will see it.
- The check does not itself mutate pins.
Resources
- #448
Contributor guide
First steps
- Read the whole issue, then the project's contributing guide.
- Comment on the issue to say you are picking it up — it saves two people doing the same work.
- Fork the repository and make your change on a branch.
- Open a pull request that references the issue number.
Assessment
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