etcd单机集群部署

下载etcd 二进制安装包。
https://github.com/etcd-io/etcd/releases

创建用户和相关目录

mkdir –p /home/etcd/data/node1
mkdir –p /home/etcd/data/node2
mkdir –p /home/etcd/data/node3

mkdir –p /home/etcd/conf
useradd -d /home/etcd etcd

su - etcd

在 /home/etcd/conf创建三个配置文件
node1.yml

name: node1
data-dir: /home/etcd/data/node1 
listen-client-urls: 'http://10.21.88.225:9002'
advertise-client-urls: 'http://10.21.88.225:9002'
listen-peer-urls: 'http://10.21.88.225:9001'
initial-advertise-peer-urls: 'http://10.21.88.225:9001'
initial-cluster: node1=http://10.21.88.225:9001,node2=http://10.21.88.225:9003,node3=http://10.21.88.225:9005
initial-cluster-token: etcd-cluster-1
initial-cluster-state: new

node2.yml

name: node2
data-dir: /home/etcd/data/node2 
listen-client-urls: 'http://10.21.88.225:9004'
advertise-client-urls: 'http://10.21.88.225:9004'
listen-peer-urls: 'http://10.21.88.225:9003'
initial-advertise-peer-urls: 'http://10.21.88.225:9003'
initial-cluster: node1=http://10.21.88.225:9001,node2=http://10.21.88.225:9003,node3=http://10.21.88.225:9005
initial-cluster-token: etcd-cluster-1
initial-cluster-state: new

node3.yml

name: node3
data-dir: /home/etcd/data/node3
listen-client-urls: 'http://10.21.88.225:9006'
advertise-client-urls: 'http://10.21.88.225:9006'
listen-peer-urls: 'http://10.21.88.225:9005'
initial-advertise-peer-urls: 'http://10.21.88.225:9005'
initial-cluster: node1=http://10.21.88.225:9001,node2=http://10.21.88.225:9003,node3=http://10.21.88.225:9005
initial-cluster-token: etcd-cluster-1
initial-cluster-state: new

启动3个节点

/home/etcd/etcd-v3.3.10-linux-amd64/etcd  --config-file=/home/etcd/conf/node1.yml &
/home/etcd/etcd-v3.3.10-linux-amd64/etcd  --config-file=/home/etcd/conf/node2.yml &
/home/etcd/etcd-v3.3.10-linux-amd64/etcd  --config-file=/home/etcd/conf/node3.yml &

查看集群状态

./etcdctl --endpoints http://10.21.88.225:9002,http://10.21.88.225:9004,http://10.21.88.225:9006 member list