Method push

registry/app/remote/controller/proxy/controller.go:488–512

(
	ctx context.Context, art pkg.RegistryInfo, man manifest.Manifest, contentType string,
)

}

func (m *ManifestListCache) push(
	ctx context.Context, art pkg.RegistryInfo, man manifest.Manifest, contentType string,
) error {
	if len(man.References()) == 0 {
		return errors.New("manifest list doesn't contain any pushed manifest")
	}
	_, pl, err := man.Payload()
	if err != nil {
		log.Ctx(ctx).Error().Msgf("failed to get payload, error %v", err)
		return err
	}
	log.Ctx(ctx).Debug().Msgf("The manifest list payload: %v", string(pl))
	newDig := digest.FromBytes(pl)
	// Because the manifest list maybe updated, need to recheck if it is exist in local
	_, descriptor, manifest2, _ := m.localRegistry.PullManifest(ctx, art, nil, nil)
	if manifest2 != nil && descriptor.Digest == newDig {
		return nil
	}

	_, errs := m.localRegistry.PutManifest(ctx, art, contentType, ByteToReadCloser(pl), int64(len(pl)))
	if len(errs) > 0 {
		return errs[0]
	}
	return nil
}