ip	角色
192.168.1.101	master
192.168.1.102	node1
192.168.1.103	node2

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1. 安装etcd

yum install -y etcd

2. 配置文件

# master配置
ETCD_NAME=etcdmaster 
ETCD_DATA_DIR="/var/lib/etcd/etcd-master.etcd"    
ETCD_LISTEN_PEER_URLS="http://192.168.1.101:2380"
ETCD_LISTEN_CLIENT_URLS="http://192.168.1.101:2379,http://127.0.0.1:2379"
ETCD_INITIAL_ADVERTISE_PEER_URLS="http://192.168.1.101:2380"
ETCD_INITIAL_CLUSTER="etcdmaster=http://192.168.1.101:2380,etcdnode1=http://192.168.1.102:2380,etcdnode2=http://192.168.1.103:2380"
ETCD_INITIAL_CLUSTER_STATE="new"
ETCD_INITIAL_CLUSTER_TOKEN="etcd-cluster-00"
ETCD_ADVERTISE_CLIENT_URLS="http://192.168.1.101:2379"

# etcdnode01
ETCD_NAME=etcdnode01
ETCD_DATA_DIR="/var/lib/etcd/etcd-master.etcd"    
ETCD_LISTEN_PEER_URLS="http://192.168.1.102:2380"
ETCD_LISTEN_CLIENT_URLS="http://1092.168.1.102:2379,http://127.0.0.1:2379"
ETCD_INITIAL_ADVERTISE_PEER_URLS="http://10.6.74.6:2380"
ETCD_INITIAL_CLUSTER="etcdmaster=http://192.168.1.101:2380,etcdnode1=http://192.168.1.102:2380,etcdnode2=http://192.168.1.103:2380"
ETCD_INITIAL_CLUSTER_STATE="new"
ETCD_INITIAL_CLUSTER_TOKEN="etcd-cluster-00"
ETCD_ADVERTISE_CLIENT_URLS="http://192.168.1.102:2379"

# etcdnode02
ETCD_NAME=etcdnode02
ETCD_DATA_DIR="/var/lib/etcd/etcd-master.etcd"    
ETCD_LISTEN_PEER_URLS="http://192.168.1.103:2380"
ETCD_LISTEN_CLIENT_URLS="http://192.168.1.103:2379,http://127.0.0.1:2379"
ETCD_INITIAL_ADVERTISE_PEER_URLS="http://192.168.1.103:2380"
ETCD_INITIAL_CLUSTER="etcdmaster=http://192.168.1.101:2380,etcdnode1=http://192.168.1.102:2380,etcdnode2=http://192.168.1.103:2380"
ETCD_INITIAL_CLUSTER_STATE="new"
ETCD_INITIAL_CLUSTER_TOKEN="etcd-cluster-00"
ETCD_ADVERTISE_CLIENT_URLS="http://192.168.1.103:2379"

3. 配置启动命令

cat /usr/lib/systemd/system/etcd.service

[Unit]

Description=Etcd Server

After=network.target

After=network-online.target

Wants=network-online.target

[Service]

Type=notify

WorkingDirectory=/var/lib/etcd/

EnvironmentFile=-/etc/etcd/etcd.conf

User=etcd

ExecStart=/bin/bash -c "GOMAXPROCS=$(nproc) /usr/bin/etcd --name=\"${ETCD_NAME}\" \
--data-dir=\"${ETCD_DATA_DIR}\" \
--listen-peer-urls=\"${ETCD_LISTEN_PEER_URLS}\" \
--listen-client-urls=\"${ETCD_LISTEN_CLIENT_URLS}\" \
--advertise-client-urls=\"${ETCD_ADVERTISE_CLIENT_URLS}\" \
--initial-cluster-token=\"${ETCD_INITIAL_CLUSTER_TOKEN}\" \
--initial-cluster=\"${ETCD_INITIAL_CLUSTER}\" \
--initial-cluster-state=\"${ETCD_INITIAL_CLUSTER_STATE}\""

Restart=on-failure

LimitNOFILE=65536

[Install]

WantedBy=multi-user.target

4. 管理  

   分别启动各种节点 systemctl start etcd

# 查看群集状态命令
etcdctl member list

本文标题：cenots7部署etcd集群
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