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Copies with Zstd compression to schema-agnostic transports don’t trigger schema conversion #2195

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mtrmac opened this issue Nov 21, 2023 · 2 comments · Fixed by #2204
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kind/bug A defect in an existing functionality (or a PR fixing it)

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@mtrmac
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mtrmac commented Nov 21, 2023

E.g.

skopeo copy --dest-compress --dest-compress-format=zstd dir:uncompressed-schema2 dir:dest

fails with FATA[0000] creating an updated image manifest: preparing updated manifest, layer "sha256:…": zstd compression is not supported for type "application/vnd.docker.image.rootfs.diff.tar"

because determineManifestConversion sees that all formats are accepted, and thinks that there is no reason to try anything but the source format.

@rhatdan
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rhatdan commented Nov 21, 2023

@giuseppe FYI

@mtrmac
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mtrmac commented Nov 30, 2023

Related, still outstanding: #2205 .

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