imagetools: add oci-layout support#3721
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tonistiigi merged 5 commits intodocker:masterfrom Mar 14, 2026
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Verify imagetools copies signatures only for attestation manifests and does not copy image-manifest signatures or unsupported referrers. Signed-off-by: Tonis Tiigi <tonistiigi@gmail.com>
Add oci-layout:// source and target support to imagetools create and inspect while keeping merge, filter, and referrer logic shared. Signed-off-by: Tonis Tiigi <tonistiigi@gmail.com>
Handle OCI layout referrers via subject-annotated index entries and add integration coverage for copying signed attestations through oci-layout. Signed-off-by: Tonis Tiigi <tonistiigi@gmail.com>
When pushing to an OCI layout where the top-level descriptor blob already existed, pushOCILayout returned early without updating index.json or writing pending referrers. Restructure the control flow so the blob-exists case skips only the write but still updates the index and flushes referrers. Signed-off-by: Tonis Tiigi <tonistiigi@gmail.com>
FetchReferrers accepted FetchReferrersOpt but dropped them when resolving OCI layout referrers. Forward the options and apply ArtifactTypes filtering so callers can narrow results consistently for both registry and local layout sources. Signed-off-by: Tonis Tiigi <tonistiigi@gmail.com>
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Needs docs follow-up for v0.33.0 (cc @dvdksn) |
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Add support for oci-layout format in
imagetools createandinspect. Same format as named context in build:Can be used both as a source or target parameter. You can mix oci-layout and registry references as you like.