Immutable image tags in container registry

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Many OCI container registries now support configuring tags as immutable to avoid supply-chain-attacks that would push compromised image content to an existing tag:

• https://goharbor.io/docs/2.4.0/working-with-projects/working-with-images/create-tag-immutability-rules/
• https://docs.gitlab.com/user/packages/container_registry/immutable_container_tags/
• https://docs.docker.com/docker-hub/repos/manage/hub-images/immutable-tags/

Did not yet find related ghrc community discussion yet.

More detailed analysis into https://www.proactiveops.io/archive/immutable-container-image-tags/

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