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Wrong mediatype on attestation replace #4076

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stgrace opened this issue Feb 21, 2025 · 0 comments · Fixed by #4077
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Wrong mediatype on attestation replace #4076

stgrace opened this issue Feb 21, 2025 · 0 comments · Fixed by #4077
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stgrace commented Feb 21, 2025

Description

Using replace option on cosing attest, an attestation with wrong mediatype is created, namely mediaType application/vnd.docker.distribution.manifest.v2+json instead of application/vnd.oci.image.manifest.v1+json. This results in tool like skopeo throwing an error:

FATA[0001] Error parsing manifest for image: unsupported docker v2s2 media type: "application/vnd.oci.image.manifest.v1+json"

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Fix replace with compliant image mediatype stgrace/cosign
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