Kubernetes多master部署（3）---etcd集群部署

etcd集群部署

安装包：etcd-v3.3.10-linux-amd64.tar.gz

 解压：

tar xvf etcd-v3.3.10-linux-amd64.tar.gz

cd etcd-v3.3.10-linux-amd64

编辑etcd配置文件：

vim /opt/kubernetes/cfg/etcd

#[Member]
ETCD_NAME="etcd01"
ETCD_DATA_DIR="/var/lib/etcd/default.etcd"
ETCD_LISTEN_PEER_URLS="https://10.50.182.65:2380"
ETCD_LISTEN_CLIENT_URLS="https://10.50.182.65:2379"

#[Clustering]
ETCD_INITIAL_ADVERTISE_PEER_URLS="https://10.50.182.65:2380"
ETCD_ADVERTISE_CLIENT_URLS="https://10.50.182.65:2379"
ETCD_INITIAL_CLUSTER="etcd01=https://10.50.182.65:2380,etcd02=https://10.50.182.66:2380,etcd03=https://10.50.182.67:2380"
ETCD_INITIAL_CLUSTER_TOKEN="etcd-cluster"
ETCD_INITIAL_CLUSTER_STATE="new"

将etcd配置到系统环境中

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


[Unit]
Description=Etcd Server
After=network.target
After=network-online.target
Wants=network-online.target

[Service]
Type=notify
EnvironmentFile=-/opt/kubernetes/cfg/etcd
ExecStart=/opt/kubernetes/bin/etcd 
--name=${ETCD_NAME} 
--data-dir=${ETCD_DATA_DIR} 
--listen-peer-urls=${ETCD_LISTEN_PEER_URLS} 
--listen-client-urls=${ETCD_LISTEN_CLIENT_URLS},http://127.0.0.1:2379 
--advertise-client-urls=${ETCD_ADVERTISE_CLIENT_URLS} 
--initial-advertise-peer-urls=${ETCD_INITIAL_ADVERTISE_PEER_URLS} 
--initial-cluster=${ETCD_INITIAL_CLUSTER} 
--initial-cluster-token=${ETCD_INITIAL_CLUSTER} 
--initial-cluster-state=new 
--cert-file=/opt/kubernetes/ssl/server.pem 
--key-file=/opt/kubernetes/ssl/server-key.pem 
--peer-cert-file=/opt/kubernetes/ssl/server.pem 
--peer-key-file=/opt/kubernetes/ssl/server-key.pem 
--trusted-ca-file=/opt/kubernetes/ssl/ca.pem 
--peer-trusted-ca-file=/opt/kubernetes/ssl/ca.pem
Restart=on-failure
LimitNOFILE=65536

[Install]
WantedBy=multi-user.target

启动etcd服务日志在/var/log/messages:

systemctl start etcd

systemctl enable etcd

systemctl status etcd -l

此时master上面etcd配置完毕，我们将其配置拷贝到其他2台机器上面，命令自己调整：

scp -rf  -P 10022 jyapp@10.50.182.65:/opt/kubernetes  /opt/

在master02和master03上启动etcd

测试etcd:

cd /opt/kubernetes/ssl
 /opt/kubernetes/bin/etcdctl --ca-file=ca.pem --cert-file=server.pem --key-file=server-key.pem --endpoints="https://10.50.182.65:2379,https://10.50.182.66:2379,https://10.50.182.67:2379" cluster-health