Microk8sで error getting ClusterInformation: connection is unauthorized: Unauthorized とか言われてpodが起動しないとき

事象

Events:
  Type     Reason                  Age   From     Message
  ----     ------                  ----  ----     -------
  Warning  FailedCreatePodSandBox  9s    kubelet  Failed to create pod sandbox: rpc error: code = Unknown desc = failed to setup network for sandbox "xxxxx": plugin type="calico" failed (add): error getting ClusterInformation: connection is unauthorized: Unauthorized
  Normal   SandboxChanged          8s    kubelet  Pod sandbox changed, it will be killed and re-created.

解決

$ kubectl rollout restart daemonset calico-node -n kube-system 

この前にも各ノードでsnap restart microk8sとかしたのでそのへんも効いていたかもしれない。