k8s基础（3）etcd集群

• 下载安装

•   https://github.com/coreos/etcd/releases  在这网页，可以看到有多个版本共选择。
• 下载3.25
• 解压后，

  cd etcd-v3.2.5-linux-amd64

  会看到etcd,etcdctl,将它们复制到/usr/local/bin下
• cp etcd* /usr/bin

• vim  kube-etcd.service

• [Unit]
  Description=Kube-etcd Service
  After=network.target

  [Service]
  Type=notify
  ExecStart=/usr/local/bin/etcd \
  --name "etcd1" \
  --data-dir="~/.k8s/etcd" \
  --listen-client-urls "http://192.168.0.222:2379,http://127.0.0.1:2379" \
  --listen-peer-urls "http://192.168.0.222:2380" \
  --advertise-client-urls "http://192.168.0.222:2379" \
  --initial-advertise-peer-urls "http://192.168.0.222:2380" \
  --initial-cluster "etcd1=http://192.168.0.222:2380" \
  --initial-cluster-state "new"
  Restart=always
  LimitNOFILE=65536

  [Install]
  WantedBy=default.target

• cp -rf kube-etcd.service   /lib/systemd/system/

• systemctl --system daemon-reload

• systemctl start kube-etcd.service