Imagetools multiple repositories #1137
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Could we add some progress logs so the user can see what is going on when layer transfers happen? Ideally, we could just reuse the build progressbar and show that transfers the same way we see on image pulls during build. For now, just printing logs like "copying blob sha256: from .. to .. & done` would do as well. I don't this currently does cross-repo mounting but it should be quite easy to add support for it. Supposedly the label for the origin of the blob gets missing somewhere. https://github.com/containerd/containerd/blob/main/remotes/handlers.go#L330 |
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Have got the cross-repo mounting working now in a Let me know, and I can actually open a PR on buildkit, instead of hacking around with the |
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Yes, go ahead with the PR to buildkit. |
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We should review this example in build-push-action repo when 0.9 is out with this PR: https://github.com/docker/build-push-action/blob/master/docs/advanced/copy-between-registries.md |
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Have rebased onto master, this should be ready to review/merge. |
| var repo string | ||
| for r := range repos { | ||
| repo = r | ||
| var defaultRepo *string |
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The repos map looks unused now. You can just use the earlier range tags/srcs to determine the defaultRepo
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repos is only used to determine the defaultRepo. I think some sort of collection of all the repo names is required, since we only derive a default if all the other repo names present are the same.
We could potentially have a bool to track if we found a different repo that doesn't match the previously selected default during iteration, but I think that's potentially more complex than just tracking all the found repo names and then having a len().
| eg.Go(func() error { | ||
| return progress.Wrap(fmt.Sprintf("pushing %s", t.String()), pw.Write, func(sub progress.SubLogger) error { | ||
| eg2, _ := errgroup.WithContext(ctx) | ||
| for _, s := range srcs { |
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Shouldn't this only happen when src and destination repo are actually different?
This patch modifies the existing combining code in imagetools create to provide better support for multiple repositories down the road. Specifically, the code should no longer rely on a single repository being used for all sources and tags, and should resolve descriptors in their relevant repositories. Signed-off-by: Justin Chadwell <me@jedevc.com>
Signed-off-by: Justin Chadwell <me@jedevc.com>
Signed-off-by: Justin Chadwell <me@jedevc.com>
Signed-off-by: Justin Chadwell <me@jedevc.com>
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Fixes #486
This PR introduces support for multiple repositories: this allows creating manifest lists with manifests pulled from multiple other locations.
This is split into two commits:
srcstruct public to allow keeping the oci descriptor next to where it can be fetched from.