stage(skopeo): introduce oci

pkg/osbuild/skopeo_stage.go

@@ -1,13 +1,26 @@
 package osbuild
 
+type SkopeoDestination interface {
+	isSkopeoDestination()
+}
+
 type SkopeoDestinationContainersStorage struct {
 	Type          string `json:"type"`
 	StoragePath   string `json:"storage-path,omitempty"`
 	StorageDriver string `json:"storage-driver,omitempty"`
 }
 
+func (SkopeoDestinationContainersStorage) isSkopeoDestination() {}
+
+type SkopeoDestinationOCI struct {
+	Type string `json:"type"`
+	Path string `json:"path,omitempty"`
+}
+
+func (SkopeoDestinationOCI) isSkopeoDestination() {}
+
 type SkopeoStageOptions struct {
-	DestinationContainersStorage SkopeoDestinationContainersStorage `json:"destination"`
+	Destination SkopeoDestination `json:"destination"`
 }
 
 func (o SkopeoStageOptions) isStageOptions() {}
@@ -29,11 +42,29 @@ func NewSkopeoStageWithContainersStorage(path string, images ContainersInput, ma
 	return &Stage{
 		Type: "org.osbuild.skopeo",
 		Options: &SkopeoStageOptions{
-			DestinationContainersStorage: SkopeoDestinationContainersStorage{
+			Destination: SkopeoDestinationContainersStorage{
 				Type:        "containers-storage",
 				StoragePath: path,
 			},
 		},
 		Inputs: inputs,
 	}
 }
+
+func NewSkopeoStageWithOCI(path string, images ContainersInput, manifests *FilesInput) *Stage {
+	inputs := SkopeoStageInputs{
+		Images:        images,
+		ManifestLists: manifests,
+	}
+
+	return &Stage{
+		Type: "org.osbuild.skopeo",
+		Options: &SkopeoStageOptions{
+			Destination: &SkopeoDestinationOCI{
+				Type: "oci",
+				Path: path,
+			},
+		},
+		Inputs: inputs,
+	}
+}