Use OCI manifest format for images from scratch

Silvanoc · Silvanoc · commit 6e8efe6ba685 · 2024-09-19T10:52:56.000+02:00
Images built from scratch where still using the outdated Docker v2 image
format (recognizable in the mediaType `application/vnd.docker.distribution.manifest.v2+json`).
This patch replaces that outdate format with the current one based in
the OCI standard (marked by the mediaType `application/vnd.oci.image.manifest.v1+json`).

Signed-off-by: Silvano Cirujano Cuesta &lt;silvano.cirujano-cuesta@siemens.com&gt;
diff --git a/pkg/v1/empty/image.go b/pkg/v1/empty/image.go
@@ -29,7 +29,7 @@ type emptyImage struct{}
 
 // MediaType implements partial.UncompressedImageCore.
 func (i emptyImage) MediaType() (types.MediaType, error) {
-	return types.DockerManifestSchema2, nil
+	return types.OCIManifestSchema1, nil
 }
 
 // RawConfigFile implements partial.UncompressedImageCore.

Original file line number	Diff line number	Diff line change
`@@ -29,7 +29,7 @@ type emptyImage struct{}`
`29`	`29`
`30`	`30`	`// MediaType implements partial.UncompressedImageCore.`
`31`	`31`	`func (i emptyImage) MediaType() (types.MediaType, error) {`
`32`		`- return types.DockerManifestSchema2, nil`
	`32`	`+ return types.OCIManifestSchema1, nil`
`33`	`33`	`}`
`34`	`34`
`35`	`35`	`// RawConfigFile implements partial.UncompressedImageCore.`