老师求助求助，线上k8s集群运行了两个礼拜，突然今天访问不了，所有的master和work节点访问 kubectl get pods 都返回
The connection to the server 192.168.14.102:6443 was refused - did you specify the right host or port?
然后我看下了docker ps 容器都exit
于是我试了
systemctl restart docker 报
Job for docker.service failed because the control process exited with error code. See “systemctl status docker.service” and “journalctl -xe” for details.
然后试了 systemctl restart kubelet.service 还是没反应
老师，怎么重启K8S整个集群，我们很多应用之前都是正常在上面跑的