diff --git a/core/images/mediatypes.go b/core/images/mediatypes.go index cd51aa5eb..d2e845b16 100644 --- a/core/images/mediatypes.go +++ b/core/images/mediatypes.go @@ -34,6 +34,7 @@ const ( MediaTypeDockerSchema2Layer = "application/vnd.docker.image.rootfs.diff.tar" MediaTypeDockerSchema2LayerForeign = "application/vnd.docker.image.rootfs.foreign.diff.tar" MediaTypeDockerSchema2LayerGzip = "application/vnd.docker.image.rootfs.diff.tar.gzip" + MediaTypeDockerSchema2LayerZstd = "application/vnd.docker.image.rootfs.diff.tar.zstd" MediaTypeDockerSchema2LayerForeignGzip = "application/vnd.docker.image.rootfs.foreign.diff.tar.gzip" MediaTypeDockerSchema2Config = "application/vnd.docker.container.image.v1+json" MediaTypeDockerSchema2Manifest = "application/vnd.docker.distribution.manifest.v2+json" @@ -81,6 +82,12 @@ func DiffCompression(ctx context.Context, mediaType string) (string, error) { return "", nil } return "gzip", nil + case MediaTypeDockerSchema2LayerZstd: + if len(ext) > 0 { + // Type is wrapped + return "", nil + } + return "zstd", nil case ocispec.MediaTypeImageLayer, ocispec.MediaTypeImageLayerNonDistributable: //nolint:staticcheck // Non-distributable layers are deprecated if len(ext) > 0 { switch ext[len(ext)-1] { @@ -132,7 +139,7 @@ func IsLayerType(mt string) bool { // Parse Docker media types, strip off any + suffixes first switch base, _ := parseMediaTypes(mt); base { case MediaTypeDockerSchema2Layer, MediaTypeDockerSchema2LayerGzip, - MediaTypeDockerSchema2LayerForeign, MediaTypeDockerSchema2LayerForeignGzip: + MediaTypeDockerSchema2LayerForeign, MediaTypeDockerSchema2LayerForeignGzip, MediaTypeDockerSchema2LayerZstd: return true } return false