用 PS 指令檢查 etcd 的各個配置檔案路徑與參數

有些情況 Kubectl 工具未安裝在 etcd server 上，所以必須要手動用 ps 指令檢查參數:

ps aux|grep etcd

結果:

etcd         808  0.0  0.0 11218624 56044 ?      Ssl  01:58   0:44 /usr/local/bin/etcd --name etcd-server --data-dir=/var/lib/etcd-data --cert-file=/etc/etcd/pki/etcd.pem --key-file=/etc/etcd/pki/etcd-key.pem --peer-cert-file=/etc/etcd/pki/etcd.pem --peer-key-file=/etc/etcd/pki/etcd-key.pem --trusted-ca-file=/etc/etcd/pki/ca.pem --peer-trusted-ca-file=/etc/etcd/pki/ca.pem --peer-client-cert-auth --client-cert-auth --initial-advertise-peer-urls https://192.4.181.11:2380 --listen-peer-urls https://192.4.181.11:2380 --advertise-client-urls https://192.4.181.11:2379 --listen-client-urls https://192.4.181.11:2379,https://127.0.0.1:2379 --initial-cluster-token etcd-cluster-1 --initial-cluster etcd-server=https://192.4.181.11:2380 --initial-cluster-state new
root        1376  0.0  0.0  13444  1072 pts/1    S+   02:54   0:00 grep etcd

Etcdctl 觀察分散式 ETCD 節點

有時候 ETCD 節點存在好幾個，作為安全起見，可以用以下方式在 ETCD 節點上查看:

ETCDCTL_API=3 etcdctl \
 --endpoints=https://127.0.0.1:2379 \
 --cacert=/etc/etcd/pki/ca.pem \
 --cert=/etc/etcd/pki/etcd.pem \
 --key=/etc/etcd/pki/etcd-key.pem \
  member list

結果:

4e8233dc38e9a3cd, started, etcd-server, https://192.4.181.11:2380, https://192.4.181.11:2379, false

我們可以看到，只有一個 IP ，這就是一個 Node 。

• K8S