## 验证集群是否正常运行 ``` etcdctl \ --ca-file='/opt/ssl/etcd/etcd-ca.pem' \ --cert-file='/opt/ssl/etcd/etcd_client.pem' \ --key-file='/opt/ssl/etcd/etcd_client-key.pem' \ --endpoints='https://10.10.10.231:2379,https://10.10.10.232:2379,https://10.10.10.233:2379' \ cluster-health ```