CODEWITHSUNDEEP
dockercontainersharbor
Thomas Anderson
Thomas Anderson

Reputation: 524

Is it possible to use Harbor Replication Rules to mirror Docker Images by digest?

I am looking to mirror Docker images to a Harbor instance based on tags and digests.

My standard approach thus far has involved creating Harbor Replication Rules. This works well for replicating Docker images with specific tags, however I cannot find a way to replicate based on an image digest (e.g. ubuntu@sha256:82becede498899ec668628e7cb0ad87b6e1c371cb8a1e597d83a47fac21d6af3).

I understand that adding a Replication Rule based on a digest means that the image should only be pulled once, so this is probably a bit of an odd use-case for Replications (which aim to pull down updated images over time).

My alternative solution would be to pull the image (docker pull ubuntu@sha256:82becede498899ec668628e7cb0ad87b6e1c371cb8a1e597d83a47fac21d6af3) and then push it to Harbor directly if this isn't possible.

I have tried the following Replication Rules, none of which replicate the desired image:

I have also tried 'Tag' 'matching' '20.04' and this succeeded, but did not have the correct digest.

Upvotes: 2

Views: 692

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