1. 环境信息：CentOS 7.3 最小化安装
node50 192.168.1.50；node51 192.168.1.51；node52 192.168.1.52
2. yum安装etcd：
[[email protected] ~]# yum install etcd
3. 编辑etcd配置文件：
[[email protected] ~]# vi /etc/etcd/etcd.conf
4. 各节点配置如下：
node51：
ETCD_NAME=etcd01
ETCD_DATA_DIR="/var/lib/etcd/etcd01.etcd"
ETCD_LISTEN_PEER_URLS="http://192.168.1.51:2380"
ETCD_LISTEN_CLIENT_URLS="http://192.168.1.51:2379,http://127.0.0.1:2379"
ETCD_INITIAL_ADVERTISE_PEER_URLS="http://192.168.1.51:2380"
ETCD_ADVERTISE_CLIENT_URLS="http://192.168.1.51:2379"
ETCD_INITIAL_CLUSTER_STATE="new"
ETCD_INITIAL_CLUSTER_TOKEN="etcd-cluster1"
ETCD_INITIAL_CLUSTER="etcd01=http://192.168.1.51:2380,etcd02=http://192.168.1.50:2380,etcd03=http://192.168.1.52:2380"
node50：
ETCD_NAME=etcd02
ETCD_DATA_DIR="/var/lib/etcd/etcd02.etcd"
ETCD_LISTEN_PEER_URLS="http://192.168.1.50:2380"
ETCD_LISTEN_CLIENT_URLS="http://192.168.1.50:2379,http://127.0.0.1:2379"
ETCD_INITIAL_ADVERTISE_PEER_URLS="http://192.168.1.50:2380"
ETCD_ADVERTISE_CLIENT_URLS="http://192.168.1.50:2379"
ETCD_INITIAL_CLUSTER_STATE="new"
ETCD_INITIAL_CLUSTER_TOKEN="etcd-cluster1"
ETCD_INITIAL_CLUSTER="etcd01=http://192.168.1.51:2380,etcd02=http://192.168.1.50:2380,etcd03=http://192.168.1.52:2380"
node52：
ETCD_NAME=etcd03
ETCD_DATA_DIR="/var/lib/etcd/etcd03.etcd"
ETCD_LISTEN_PEER_URLS="http://192.168.1.52:2380"
ETCD_LISTEN_CLIENT_URLS="http://192.168.1.52:2379,http://127.0.0.1:2379"
ETCD_INITIAL_ADVERTISE_PEER_URLS="http://192.168.1.52:2380"
ETCD_ADVERTISE_CLIENT_URLS="http://192.168.1.52:2379"
ETCD_INITIAL_CLUSTER_STATE="new"
ETCD_INITIAL_CLUSTER_TOKEN="etcd-cluster1"
ETCD_INITIAL_CLUSTER="etcd01=http://192.168.1.51:2380,etcd02=http://192.168.1.50:2380,etcd03=http://192.168.1.52:2380"
5. 分别在三个节点更新配置，设置开机自启动，启动etcd服务：
[[email protected] ~]# systemctl daemon-reload
[[email protected] ~]# systemctl start etcd
[[email protected] ~]# systemctl enable etcd
6. 验证：
[roo[email protected] ~]# etcd
[[email protected] ~]# etcdctl member list
