部署環境

主機名	IP	操作系統
node201 ? ? ?	10.0.0.201 ? ? ? ? ?	centos 7.3 64位 ? ? ?
node202	10.0.0.202	centos 7.3 64位
node203	10.0.0.203	centos 7.3 64位

停掉防火墻

systemctl stop firewalld

systemctl disable firewalld

關閉SELinux

編輯/etc/selinux/config

下載etcd

https://github.com/coreos/etcd/releases

cd /usr/local/src

wget?https://github.com/coreos/etcd/releases/download/v3.1.7/etcd-v3.1.7-linux-amd64.tar.gz，也可以使用curl或aria2下載

tar zxvf?etcd-v3.1.7-linux-amd64.tar.gz

cd?etcd-v3.1.7-linux-amd64

添加環境變量export ETCDCTL_API=3，指定客戶端工具etcdctl使用api v3和服務器程序etcd進行通信。

使用靜態方式創建集群

在node201節點創建etcd.service

[Unit] Description=Etcd Server After=network.target After=network-online.target Wants=network-online.target[Service] Type=notify WorkingDirectory=/usr/local/src/etcd-v3.1.7-linux-amd64 EnvironmentFile=-/usr/local/src/etcd-v3.1.7-linux-amd64/etcd.conf # set GOMAXPROCS to number of processors ExecStart=/usr/local/src/etcd-v3.1.7-linux-amd64/etcd \--name infra0 \--initial-advertise-peer-urls http://10.0.0.201:2380 \--listen-client-urls http://10.0.0.201:2379,http://127.0.0.1:2379 \--listen-peer-urls http://10.0.0.201:2380 \--advertise-client-urls http://10.0.0.201:2379 \--initial-cluster-token etcd-cluster1 \--initial-cluster infra0=http://10.0.0.201:2380,infra1=http://10.0.0.202:2380,infra2=http://10.0.0.203:2380 \--initial-cluster-state new Restart=on-failure LimitNOFILE=65536[Install] WantedBy=multi-user.target

在node202節點創建etcd.service

[Unit] Description=Etcd Server After=network.target After=network-online.target Wants=network-online.target[Service] Type=notify WorkingDirectory=/usr/local/src/etcd-v3.1.7-linux-amd64 EnvironmentFile=-/usr/local/src/etcd-v3.1.7-linux-amd64/etcd.conf # set GOMAXPROCS to number of processors ExecStart=/usr/local/src/etcd-v3.1.7-linux-amd64/etcd \--name infra1 \--initial-advertise-peer-urls http://10.0.0.202:2380 \--listen-client-urls http://10.0.0.202:2379,http://127.0.0.1:2379 \--listen-peer-urls http://10.0.0.202:2380 \--advertise-client-urls http://10.0.0.202:2379 \--initial-cluster-token etcd-cluster1 \--initial-cluster infra0=http://10.0.0.201:2380,infra1=http://10.0.0.202:2380,infra2=http://10.0.0.203:2380 \--initial-cluster-state new Restart=on-failure LimitNOFILE=65536[Install] WantedBy=multi-user.target

在節點node203創建文件etcd.service

[Unit] Description=Etcd Server After=network.target After=network-online.target Wants=network-online.target[Service] Type=notify WorkingDirectory=/usr/local/src/etcd-v3.1.7-linux-amd64 EnvironmentFile=-/usr/local/src/etcd-v3.1.7-linux-amd64/etcd.conf # set GOMAXPROCS to number of processors ExecStart=/usr/local/src/etcd-v3.1.7-linux-amd64/etcd \--name infra2 \--initial-advertise-peer-urls http://10.0.0.203:2380 \--listen-client-urls http://10.0.0.203:2379,http://127.0.0.1:2379 \--listen-peer-urls http://10.0.0.203:2380 \--advertise-client-urls http://10.0.0.203:2379 \--initial-cluster-token etcd-cluster1 \--initial-cluster infra0=http://10.0.0.201:2380,infra1=http://10.0.0.202:2380,infra2=http://10.0.0.203:2380 \--initial-cluster-state new Restart=on-failure LimitNOFILE=65536[Install] WantedBy=multi-user.target

在3個節點執行以下命令

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

systemctl daemon-reload

systemctl enable etcd

sytemctl start etcd

使用etcdctl版本2查看信息

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