Pin the base image to a digest#99
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larsoner merged 2 commits intoJul 4, 2026
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python:3.13-alpine is a mutable tag that gets updated whenever upstream ships Alpine/Python patches, so a build today could pull different content than a build tomorrow with no change to this file. Pin to the digest instead.
Member
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This one I'm not sure about... what's the advantage here? I think the risk of using their incrementally updated version is sufficiently low it's not worth the maintenance overhead of us having to update this periodically |
Contributor
Author
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This is a security best practice against supply chain attacks, docker docs |
Member
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Can you adjust the dependabot config as part of this PR? |
Requested in review: since the Dockerfile now pins the base image by digest, dependabot needs a docker-ecosystem entry to keep that digest current.
Contributor
Author
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Added a weekly update. not so sure if it should be weekly or daily, happy to change if you think daily is better. |
Member
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Thanks! |
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python:3.13-alpine is a mutable tag that gets updated whenever upstream ships Alpine/Python patches, so a build today could pull different content than a build tomorrow with no change to this file. Pin to the digest instead.