非k8s情况下，维护etcd，手动添加、删除节点
注意：4001为对外提供服务的端口，7001为节点间交互的借口
/export/App/etcd-v3.3.12/etcdctl –endpoints="http://172.28.178.53:4001,http://172.28.178.70:4001,http://172.28.178.34:4001" member add etcd2 http://11.5.104.2:7001
/export/App/etcd-v3.3.12/etcdctl –endpoints="http://172.28.178.53:4001,http://172.28.178.70:4001,http://172.28.178.34:4001" member remove 82fdb722eb9d638b （remove中的id 为meber list中显示的id，）
查看节点：
/export/App/etcd-v3.3.12/etcdctl –endpoints="http://172.28.178.53:4001,http://172.28.178.70:4001,http://172.28.178.34:4001" member list
26696069f6492b5e: name=etcd53 peerURLs=http://172.28.178.53:7001 clientURLs=http://172.28.178.53:4001 isLeader=false
83123c99177d962b: name=etcd9 peerURLs=http://11.5.103.9:7001 clientURLs=http://11.5.103.9:4001 isLeader=false
83d86e01a34a6415: name=etcd2 peerURLs=http://11.5.104.2:7001 clientURLs=http://11.5.104.2:4001 isLeader=false
cea02eff3b4e6b62: name=etcd70 peerURLs=http://172.28.178.70:7001 clientURLs=http://172.28.178.70:4001 isLeader=true
eb3de7b5e5f2cdca: name=etcd34 peerURLs=http://172.28.178.34:7001 clientURLs=http://172.28.178.34:4001 isLeader=false
查看节点状态：
[root@A01-R04-I178-34-7254361 ~]# /export/App/etcd-v3.3.12/etcdctl –endpoints="http://172.28.178.53:4001,http://172.28.178.70:4001,http://172.28.178.34:4001" cluster-health
member 26696069f6492b5e is healthy: got healthy result from http://172.28.178.53:4001
member 83123c99177d962b is healthy: got healthy result from http://11.5.103.9:4001
member 83d86e01a34a6415 is healthy: got healthy result from http://11.5.104.2:4001
member cea02eff3b4e6b62 is healthy: got healthy result from http://172.28.178.70:4001
member eb3de7b5e5f2cdca is healthy: got healthy result from http://172.28.178.34:4001
cluster is healthy
