K8s安装etcdctl客户端命令行工具

wget https://github.com/etcd-io/etcd/releases/download/v3.4.14/etcd-v3.4.14-linux-amd64.tar.gz

tar -zxf etcd-v3.4.14-linux-amd64.tar.gz
mv etcd-v3.4.14-linux-amd64/etcdctl /usr/local/bin
chmod +x /usr/local/bin/

[root@k8s-master1 ~]#etcdctl version
etcdctl version: 3.4.14
API version: 3.4

[root@k8s-master1 ~]#ETCDCTL_API=3 etcdctl --cacert=/etc/kubernetes/pki/etcd/ca.crt --cert=/etc/kubernetes/pki/etcd/peer.crt --key=/etc/kubernetes/pki/etcd/peer.key --write-out=table --endpoints=42.51.80.221:2379,42.51.80.222:2379,42.51.80.223:2379 endpoint health
+-------------------+--------+-------------+-------+
|     ENDPOINT      | HEALTH |    TOOK     | ERROR |
+-------------------+--------+-------------+-------+
| 42.51.80.221:2379 |   true |  29.23678ms |       |
| 42.51.80.222:2379 |   true | 30.169546ms |       |
| 42.51.80.223:2379 |   true | 30.654512ms |       |
+-------------------+--------+-------------+-------+

[root@k8s-master1 ~]#ETCDCTL_API=3 etcdctl --cacert=/etc/kubernetes/pki/etcd/ca.crt --cert=/etc/kubernetes/pki/etcd/peer.crt --key=/etc/kubernetes/pki/etcd/peer.key --write-out=table --endpoints=42.51.80.221:2379,42.51.80.222:2379,42.51.80.223:2379 member list
+------------------+---------+-------------+---------------------------+---------------------------+------------+
|        ID        | STATUS  |    NAME     |        PEER ADDRS         |       CLIENT ADDRS        | IS LEARNER |
+------------------+---------+-------------+---------------------------+---------------------------+------------+
| 4a22b8f319402aba | started | k8s-master2 | https://42.51.80.222:2380 | https://42.51.80.222:2379 |      false |
| b0e52dad330ab3ee | started | k8s-master3 | https://42.51.80.223:2380 | https://42.51.80.223:2379 |      false |
| efe5d6122ccb1c7e | started | k8s-master1 | https://42.51.80.221:2380 | https://42.51.80.221:2379 |      false |
+------------------+---------+-------------+---------------------------+---------------------------+------------+

[root@k8s-master1 ~]#ETCDCTL_API=3 etcdctl --cacert=/etc/kubernetes/pki/etcd/ca.crt --cert=/etc/kubernetes/pki/etcd/peer.crt --key=/etc/kubernetes/pki/etcd/peer.key --write-out=table --endpoints=42.51.80.221:2379,42.51.80.222:2379,42.51.80.223:2379 endpoint status
+-------------------+------------------+---------+---------+-----------+------------+-----------+------------+--------------------+--------+
|     ENDPOINT      |        ID        | VERSION | DB SIZE | IS LEADER | IS LEARNER | RAFT TERM | RAFT INDEX | RAFT APPLIED INDEX | ERRORS |
+-------------------+------------------+---------+---------+-----------+------------+-----------+------------+--------------------+--------+
| 42.51.80.221:2379 | efe5d6122ccb1c7e |  3.4.13 |  3.7 MB |     false |      false |         9 |      16535 |              16535 |        |
| 42.51.80.222:2379 | 4a22b8f319402aba |  3.4.13 |  3.7 MB |     false |      false |         9 |      16535 |              16535 |        |
| 42.51.80.223:2379 | b0e52dad330ab3ee |  3.4.13 |  3.7 MB |      true |      false |         9 |      16535 |              16535 |        |
+-------------------+------------------+---------+---------+-----------+------------+-----------+------------+--------------------+--------+