Fall back from partial pull when on VFS #2140
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This was referenced Oct 17, 2024
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Possibly fixes containers/podman#24308 . |
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Confirming that this fixes the single reproducer in containers/podman#24308 . |
giuseppe
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Oct 18, 2024
| return nil, errors.New("both zstd:chunked and eStargz TOC found") | ||
| } | ||
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| // convertImages also serves as a “must not fallback to non-partial pull” option (?!) |
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yes, for now at least it does. Because if that is set, we expect that every image is pulled using the partial pull code path, so that we can enforce composefs.
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/lgtm |
... to centralize the fallback allowed / required logic. Should not change behavior, apart from maybe some error text. Signed-off-by: Miloslav Trmač <[email protected]>
Instead of sharing the badRequestErr logic, duplicate it. That's a bit ugly, but we get better debug messages and a more traditional control flow. Should not change behavior, except for debug messages. Signed-off-by: Miloslav Trmač <[email protected]>
Use switch to handle the various TOC presence cases Signed-off-by: Miloslav Trmač <[email protected]>
... and other graph drivers which don't support partial pulls. Signed-off-by: Miloslav Trmač <[email protected]>
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> go mod edit -replace github.com/containers/storage=github.com/mtrmac/storage@vfs-fallback Signed-off-by: Miloslav Trmač <[email protected]>
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[APPROVALNOTIFIER] This PR is APPROVED This pull-request has been approved by: giuseppe, mtrmac, vrothberg The full list of commands accepted by this bot can be found here. The pull request process is described here
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mtrmac
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Signed-off-by: Miloslav Trmač <[email protected]>
mtrmac
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Oct 22, 2024
Signed-off-by: Miloslav Trmač <[email protected]>
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First refactor the logic a bit, to separate “are partial pulls allowed” from “set up partial pulls”.
See individual commits.
@giuseppe RFC on the logic, WRT composefs integrity enforcement.
Currently untested, that’s going to happen in containers/podman#24287 .