add a todo for unimplement manager method

Signed-off-by: Crazykev <crazykev@zju.edu.cn>

manager/image_list.go

@@ -0,0 +1,11 @@
+package manager
+
+import pb "k8s.io/kubernetes/pkg/kubelet/api/v1alpha1/runtime"
+
+// ListImages lists existing images.
+func (m *Manager) ListImages(filter *pb.ImageFilter) ([]*pb.Image, error) {
+	// TODO
+	// containers/storage will take care of this by looking inside /var/lib/ocid/images
+	// and listing images.
+	return nil, nil
+}

manager/image_remove.go

@@ -0,0 +1,9 @@
+package manager
+
+import pb "k8s.io/kubernetes/pkg/kubelet/api/v1alpha1/runtime"
+
+// RemoveImage removes the image.
+func (m *Manager) RemoveImage(imageSpec *pb.ImageSpec) error {
+	// TODO: implement this
+	return nil
+}

manager/image_status.go

@@ -0,0 +1,11 @@
+package manager
+
+import pb "k8s.io/kubernetes/pkg/kubelet/api/v1alpha1/runtime"
+
+// ImageStatus returns the status of the image.
+func (m *Manager) ImageStatus(imageSpec *pb.ImageSpec) (*pb.Image, error) {
+	// TODO
+	// containers/storage will take care of this by looking inside /var/lib/ocid/images
+	// and getting the image status
+	return nil, nil
+}