kubeadm方式安装kubernetes集群，kubetlet的证书过期
kubeadm方式安装kubernetes集群，kubetlet的证书过期背景：有node所在的主机重启了，服务器启动后kubelet启动不了；[root@master ~]# kubectl get nodes有发现有Node处于NotReadly 查看日志如下：Part of the existing bootstrap client certificate is expired: 2021-08-05 00:33:57 +0000 UTCfailed to run Kubelet: un
