gcr

func CreateManifestList ¶

func CreateManifestList(targetRef string, images []PlatformImage, dockerMediaTypes bool) error

CreateManifestList builds a multi-arch manifest list from the given platform images and pushes it to targetRef. It uses mutate.AppendManifests and remote.WriteIndex (same approach as crane index append), which pushes all child image manifests and layers before pushing the index itself.

When dockerMediaTypes is true, the index is emitted as a Docker manifest list (application/vnd.docker.distribution.manifest.list.v2+json) for Docker Hub compatibility; otherwise an OCI image index is emitted.

func CreateManifestListFromRefs ¶

func CreateManifestListFromRefs(targetRef string, refs []PlatformRef, dockerMediaTypes bool) error

CreateManifestListFromRefs builds a multi-arch manifest list from images that already exist in the registry. It fetches only the descriptors (no layers) and creates a manifest list pointing to them.

When dockerMediaTypes is true, the index is emitted as a Docker manifest list for Docker Hub compatibility; otherwise an OCI image index is emitted.

func Retag ¶

func Retag(sourceRef, targetRef string) error

Retag creates an additional tag alias for an existing image in a registry. It copies the manifest from sourceRef to targetRef without re-uploading layers.