ETCD集群部署(非docker)ETCD集群部署(非docker)

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ETCD集群部署(非docker)

1.拷贝证书

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mkdir -p /opt/etcd/ssl
cp ca*pem server*pem /opt/etcd/ssl

2.下载etcd包

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wget https://github.com/etcd-io/etcd/releases/download/v3.4.14/etcd-v3.4.14-linux-amd64.tar.gz

3.解压

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mkdir -p /opt/etcd/{bin,cfg,ssl}
tar -zxvf etcd-v3.4.14-linux-amd64.tar.gz
mv etcd-v3.4.14-linux-amd64/{etcd,etcdctl} /opt/etcd/bin/

4.创建etcd配置文件

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cat > /opt/etcd/cfg/etcd.conf << EOF
#[Member]
ETCD_NAME="etcd-1"
ETCD_DATA_DIR="/home/etcd-data-dir"
ETCD_LISTEN_PEER_URLS="https://192.168.221.128:2380"
ETCD_LISTEN_CLIENT_URLS="https://192.168.221.128:2379"

#[Clustering]
ETCD_INITIAL_ADVERTISE_PEER_URLS="https://192.168.221.128:2380"
ETCD_ADVERTISE_CLIENT_URLS="https://192.168.221.128:2379"
ETCD_INITIAL_CLUSTER="etcd-1=https://192.168.221.128:2380,etcd-2=https://192.168.221.129:2380,etcd-3=https://192.168.221.130:2380"
ETCD_INITIAL_CLUSTER_TOKEN="etcd-cluster"
ETCD_INITIAL_CLUSTER_STATE="new"
#为了兼容flannel
ETCD_ENABLE_V2="true"
EOF

5.创建etcd配置文件

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cat > /usr/lib/systemd/system/etcd.service << EOF
[Unit]
Description=Etcd Server
After=network.target
After=network-online.target
Wants=network-online.target

[Service]
Type=notify
EnvironmentFile=/opt/etcd/cfg/etcd.conf
ExecStart=/opt/etcd/bin/etcd 
--cert-file=/opt/etcd/ssl/server.pem 
--key-file=/opt/etcd/ssl/server-key.pem 
--peer-cert-file=/opt/etcd/ssl/server.pem 
--peer-key-file=/opt/etcd/ssl/server-key.pem 
--trusted-ca-file=/opt/etcd/ssl/ca.pem 
--peer-trusted-ca-file=/opt/etcd/ssl/ca.pem 
--logger=zap
Restart=on-failure
LimitNOFILE=65536

[Install]
WantedBy=multi-user.target
EOF

6.启动并设置开机启动

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systemctl daemon-reload
systemctl start etcd
systemctl enable etcd

7.查看集群状态

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./etcdctl --endpoints="https://192.168.201.128:2379,https://192.168.201.129:2379,https://192.168.201.130:2379" 
--cert=/opt/etcd/ssl/server.pem 
--key=/opt/etcd/ssl/server-key.pem 
--cacert=/opt/etcd/ssl/ca.pem 
endpoint status