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Feature Request: skip Push on Unchanged Digest

See original GitHub issue

I have a monorepo with multiple docker images and I would like to publish an image only if the digest of the image is not present in the registry, regardless of the tag. I’m using fluxcd and right now because a tag is pushed on every push to master, all the pods are being restarted.

I suggest the option skipUnchangedDigest to the build-push-action and when set to true the action will skip the push if the digest already present.

Bazel build supports this with skipUnchangedDigest flag to the container_push rule, code is here: https://github.com/bazelbuild/rules_docker/blob/06c5419265e84baf168ba4d3982f45fe1fe312b4/container/go/cmd/pusher/pusher.go#L132 https://github.com/bazelbuild/rules_docker/blob/06c5419265e84baf168ba4d3982f45fe1fe312b4/container/go/cmd/pusher/pusher.go#L163

Issue Analytics

State:
Created 3 years ago
Comments:19 (1 by maintainers)

Top GitHub Comments

2reactions

somdoroncommented, Jun 18, 2020

Another note, you must built in once with BUILDKIT_INLINE_CACHE before you can use it.

2reactions

somdoroncommented, Jun 18, 2020

and build_args: BUILDKIT_INLINE_CACHE=1

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