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When ROCKER_REGISTRY is set (e.g. to the ECR pull-through cache prefix), Docker Hub images are pulled via the cache, avoiding rate limits and transient Docker Hub outages. When ROCKER_REGISTRY is unset (local dev), falls back to pulling directly from Docker Hub.
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When
ROCKER_REGISTRYbuild arg is set (e.g. to an ECR pull-through cache prefix like991404956194.dkr.ecr.us-west-2.amazonaws.com/docker-hub), Docker Hub images are pulled via the ECR cache. This avoids Docker Hub rate limits and transient 502 errors that break CI builds.When
ROCKER_REGISTRYis unset (local dev), falls back to pulling directly from Docker Hub.The CodeBuild project already passes
ROCKER_REGISTRYas a build arg (configured in the doeseed-seedweb terraform).