ruiyaoOps sunshinea121 是kubekey吗，kubekey的话可以查看这两个文档 添加节点：https://kubesphere.io/docs/installing-on-linux/cluster-operation/add-new-nodes/ 删除节点：https://kubesphere.io/docs/installing-on-linux/cluster-operation/remove-nodes/ 操作之前记得做好etcd的数据备份,可以参考:https://github.com/etcd-io/etcd/blob/master/Documentation/op-guide/recovery.md#snapshotting-the-keyspace
