image-copy-ecr: support immutable tags #91
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Signed-off-by: Jason Hall <jason@chainguard.dev>
jonjohnsonjr
approved these changes
Aug 24, 2023
strongjz
approved these changes
Aug 25, 2023
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This adds a TF variable
-var=immutable_tags=truethat configures ECR repos to enforce immutable tags, and configures the copy function to append the first six digits of the image digest to any tag it pushes, so that tags can be immutable.When immutable tags are enabled, pushing to
cgr.dev/imjasonh.dev/random:foomirrors an image to ECR at<account>.dkr.ecr.<region>.amazonaws.com/<dst-repo>/random:foo-abcdef.