2.etcd安装

yum install etcd -y
sed -i 's#ETCD_LISTEN_CLIENT_URLS="http://localhost:2379"#ETCD_LISTEN_CLIENT_URLS="http://0.0.0.0:2379,http://0.0.0.0:4001"#g' /etc/etcd/etcd.conf
sed -i 's#ETCD_NAME="default"#ETCD_NAME="master"#g' /etc/etcd/etcd.conf
sed -i 's#ETCD_ADVERTISE_CLIENT_URLS="http://localhost:2379"#ETCD_ADVERTISE_CLIENT_URLS="http://etcd:2379,http://etcd:4001"#g' /etc/etcd/etcd.conf
//启动etcd：
systemctl start etcd
//设置etcd开启自启动：
systemctl enable etcd
//获取etcd的健康状态
etcdctl -C http://etcd:2379 cluster-health
etcdctl -C http://etcd:4001 cluster-health