fix: compress overlay_dir import

Import overlays currently are generated as tar files and not compressed. This patch compresses to produce a tar.gz blob Signed-off-by: Ramkumar Chinchani <[email protected]>
project-stacker · Apr 4, 2024 · 1692269 · 1692269
1 parent 6d069c7
commit 1692269
Showing 1 changed file with 5 additions and 1 deletion.
diff --git a/pkg/overlay/pack.go b/pkg/overlay/pack.go
@@ -301,7 +301,11 @@ func generateBlob(layerType types.LayerType, contents string, ociDir string) (io
 	if layerType.Type == "tar" {
 		packOptions := layer.RepackOptions{TranslateOverlayWhiteouts: true}
 		blob = layer.GenerateInsertLayer(contents, "/", false, &packOptions)
-		mediaType = ispec.MediaTypeImageLayer
+		blob, err = mutate.GzipCompressor.WithOpt(gzipBlockSize).Compress(blob)
+		if err != nil {
+			return nil, "", "", err
+		}
+		mediaType = ispec.MediaTypeImageLayerGzip
 	} else {
 		blob, mediaType, rootHash, err = squashfs.MakeSquashfs(ociDir, contents, nil, layerType.Verity)
 		if err != nil {