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CI/CD L6 CICD-039 · 22 min

ECR lifecycle cleanup deletes digest still referenced by promotion manifest

The production promotion manifest points to an immutable digest, but registry cleanup removes the only copy before the delayed deployment window starts.

CI/CDPlatform ReliabilityLevel 6Pro22 min
Scenario

The production promotion manifest points to an immutable digest, but registry cleanup removes the only copy before the delayed deployment window starts.

What to check first
  • Identify the primary failure signal in the Registry Retention scenario.
  • Separate visible symptoms from the underlying technical dependency.
  • Describe the safest recovery path and the follow-up prevention work.
Checking checklist
  1. Summarize the current impact and the last known change.
  2. Collect direct evidence from logs, runtime state, and configuration before changing anything.
  3. Separate immediate recovery from permanent prevention work.
Recovery and prevention

Choose the smallest safe recovery action first, then record the prevention work that reduces repeat incidents.

Questions worth viewing together
What should be checked before approving registry cleanup?

Confirm how long promoted digests remain referenced by delayed deployments, not just whether the source branch is done with them.