return nil
	}
	// Make a copy of the pod.
	copyPod := *pod
	copyPod.Annotations = make(map[string]string)

	for k, v := range pod.Annotations {
		copyPod.Annotations[k] = v
	}
	hash := getPodHash(pod)
	copyPod.Annotations[kubetypes.ConfigMirrorAnnotationKey] = hash

	// With the MirrorPodNodeRestriction feature, mirror pods are required to have an owner reference
	// to the owning node.