[3.5] Verify manifest with remote layers #13099
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Signed-off-by: Gladkov Alexey <[email protected]>
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[test] |
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Evaluated for origin test up to 37f8635 |
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continuous-integration/openshift-jenkins/test SUCCESS (https://ci.openshift.redhat.com/jenkins/job/test_pull_requests_origin_future/541/) (Base Commit: 42bdc43) |
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Approved for 3.5 (verified by QA fork_ami testing). [merge] |
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Evaluated for origin merge up to 37f8635 |
legionus
changed the title
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continuous-integration/openshift-jenkins/merge SUCCESS (https://ci.openshift.redhat.com/jenkins/job/test_pull_requests_origin_future/573/) (Base Commit: 11951a2) (Image: devenv-rhel7_5986) |
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Problem
We pass all requests (including HEAD) to the remote service if the pullthrough is enabled. On the other hand when docker client pushes the manifest we check the presence of all these layers locally. The client checks a blob existance by HEAD request before sending it to the server.
If client image is based on the imported image (but not present in local registry) dockerregistry will say that it has all the layers from the base image. In this case docker client never send them to server, but manifest verification requires them locally. It means that the verification will always fail for remote layers.
Solution
Manifest verification must to take into account the possibility that the layers may not be local and check them on remote registry server before before give up.
We can't use pullthroughBlobStore because verification happens in ManifestService. So we need to move common code that gets the blobs from the remote server to BlobGetterService and use it for pullthrough and for verification.
Backport #13001