oci: Skip symlinks found in upstream artifacts

Do not error out when upstream artifacts contain symlinks in the content layer, instead skip all symlinks during decompression.

Signed-off-by: Stefan Prodan <stefan.prodan@gmail.com>
(cherry picked from commit cdb412e)

Author: stefanprodan

internal/controller/ocirepository_controller.go

@@ -486,7 +486,7 @@ func (r *OCIRepositoryReconciler) reconcileSource(ctx context.Context, sp *patch
 	// Persist layer content to storage using the specified operation
 	switch obj.GetLayerOperation() {
 	case ociv1.OCILayerExtract:
-		if err = tar.Untar(blob, dir, tar.WithMaxUntarSize(-1)); err != nil {
+		if err = tar.Untar(blob, dir, tar.WithMaxUntarSize(-1), tar.WithSkipSymlinks()); err != nil {
 			e := serror.NewGeneric(
 				fmt.Errorf("failed to extract layer contents from artifact: %w", err),
 				ociv1.OCILayerOperationFailedReason,