[sha512] cmd/skopeo/copy: New --force-digest flag
#2771
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Signed-off-by: Lokesh Mandvekar <lsm5@redhat.com>
This commit adds support for the --force-digest flag to skopeo copy, which allows users to force the use of a specific digest algorithm (sha256, sha512) when copying images. Changes: - cmd/skopeo/copy.go: Parse --force-digest flag and set digest options Example usage: skopeo copy --force-digest=sha512 docker://alpine dir:/path/to/dest This will copy the image and recompute all digests using sha512, even if the source image uses sha256. Signed-off-by: Lokesh Mandvekar <lsm5@redhat.com>
Signed-off-by: Lokesh Mandvekar <lsm5@redhat.com>
lsm5
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--force-digest flag--force-digest flag
mtrmac
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Dec 11, 2025
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I think this would follow containers/container-libs#552 WRT option naming / timing / stability.
(IIRC there are tests that validate man pages vs. --help output; so splitting the feature addition and a man page update results in a commit that doesn’t pass — it would be better to squash that into one. Admittedly running git bisect on Skopeo is probably very rare.)
| additionalTags []string // For docker-archive: destinations, in addition to the name:tag specified as destination, also add these | ||
| signIdentity string // Identity of the signed image, must be a fully specified docker reference | ||
| digestFile string // Write digest to this file | ||
| forceDigest string // Force a specific digest algorithm (sha256, sha384, or sha512) |
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This would probably be better placed in sharedCopyOptions
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Vendors containers/container-libs#552