目录

摘要:

环境准备:

k8s集群:

etcd:

访问命令:

查看member list

查看所有的key:

---

摘要:

记录访问k8s内的etcd的数据

环境准备:

k8s集群:

需要注意以下文件只在master节点上存在

1. cert: /etc/kubernetes/pki/apiserver-etcd-client.crt
2. key: /etc/kubernetes/pki/apiserver-etcd-client.key
3. cacert: /etc/kubernetes/pki/etcd/ca.crt

etcd:

1. 必须使用V3版本: export ETCDCTL_API=3
2. 必须通过密钥访问

访问命令:

export ETCDCTL_API=3

查看member list

etcdctl --endpoints="https://127.0.0.1:2379" --cert=/etc/kubernetes/pki/apiserver-etcd-client.crt --key=/etc/kubernetes/pki/apiserver-etcd-client.key --cacert=/etc/kubernetes/pki/etcd/ca.crt member list --write-out="table"

[root@node-201 etcd]# etcdctl --endpoints="https://127.0.0.1:2379" --cert=/etc/kubernetes/pki/apiserver-etcd-client.crt --key=/etc/kubernetes/pki/apiserver-etcd-client.key --cacert=/etc/kubernetes/pki/etcd/ca.crt member list --write-out="table"
2022-04-01 14:19:57.543850 I | warning: ignoring ServerName for user-provided CA for backwards compatibility is deprecated
+------------------+---------+----------+-----------------------------+-----------------------------+
|        ID        | STATUS  |   NAME   |         PEER ADDRS          |        CLIENT ADDRS         |
+------------------+---------+----------+-----------------------------+-----------------------------+
| e73652a384b03536 | started | node-201 | https://192.168.58.201:2380 | https://192.168.58.201:2379 |
+------------------+---------+----------+-----------------------------+-----------------------------+

查看所有的key:

etcdctl --endpoints=https://127.0.0.1:2379 --cert=/etc/kubernetes/pki/apiserver-etcd-client.crt --key=/etc/kubernetes/pki/apiserver-etcd-client.key --cacert=/etc/kubernetes/pki/etcd/ca.crt  get --prefix / --keys-only=true