只需在控制节点安装

yum -y install etcd

编辑配置文件 

配图画线处需要更改，如果改行被#注释请删掉# 以取消注释

vi /etc/etcd/etcd.conf

修改的 

 ETCD_LISTEN_PEER_URLS="http://192.168.10.10:2380" ETCD_LISTEN_CLIENT_URLS="http://192.168.10.10:2379,http://127.0.0.1:2379" ETCD_NAME="controller" ETCD_INITIAL_ADVERTISE_PEER_URLS="http://192.168.10.10:2380" ETCD_ADVERTISE_CLIENT_URLS="http://192.168.10.10:2379" ETCD_INITIAL_CLUSTER="controller=http://192.168.10.10:2380" ETCD_INITIAL_CLUSTER_TOKEN="etcd-cluster-01" ETCD_INITIAL_CLUSTER_STATE="new"

 启动服务

systemctl start etcd
systemctl enable etcd

检查服务启动情况

netstat -tnlup|grep etcd