执行签发脚本
[root@k8s-master ~]# ./update-kubeadm-cert.sh all
CERTIFICATE EXPIRES
/etc/kubernetes/controller-manager.config Sep 24 02:56:34 2024 GMT
/etc/kubernetes/scheduler.config Sep 24 02:56:34 2024 GMT
/etc/kubernetes/admin.config Sep 24 02:56:34 2024 GMT
/etc/kubernetes/pki/ca.crt Sep 22 02:56:31 2033 GMT
/etc/kubernetes/pki/apiserver.crt Sep 24 02:56:32 2024 GMT
/etc/kubernetes/pki/apiserver-kubelet-client.crt Sep 24 02:56:32 2024 GMT
/etc/kubernetes/pki/front-proxy-ca.crt Sep 22 02:56:32 2033 GMT
/etc/kubernetes/pki/front-proxy-client.crt Sep 24 02:56:32 2024 GMT
/etc/kubernetes/pki/etcd/ca.crt Sep 22 02:56:32 2033 GMT
/etc/kubernetes/pki/etcd/server.crt Sep 24 02:56:33 2024 GMT
/etc/kubernetes/pki/etcd/peer.crt Sep 24 02:56:33 2024 GMT
/etc/kubernetes/pki/etcd/healthcheck-client.crt Sep 24 02:56:33 2024 GMT
/etc/kubernetes/pki/apiserver-etcd-client.crt Sep 24 02:56:33 2024 GMT
[2023-09-26T09:51:49.45+0800][INFO] backup /etc/kubernetes to /etc/kubernetes.old-20230926
