#关闭selinux、防火墙

systemctl stop firewalld.servicesystemctl disable firewalld.servicefirewall-cmd --statesed -i '/^SELINUX=.*/c SELINUX=disabled' /etc/selinux/configsed -i 's/^SELINUXTYPE=.*/SELINUXTYPE=disabled/g' /etc/selinux/configgrep --color=auto '^SELINUX' /etc/selinux/configsetenforce 0

 

# 节点node1

docker run -d --name etcd --restart=always \    -p 2379:2379 \    -p 2380:2380 \    kubernetes/etcd:v3.2.4 \    /usr/local/bin/etcd \    --name node1 \    --initial-advertise-peer-urls http://172.19.15.92:2380 --listen-peer-urls http://0.0.0.0:2380 \    --advertise-client-urls http://172.19.15.92:2379 --listen-client-urls http://0.0.0.0:2379 \    --initial-cluster-state new \    --initial-cluster-token docker-etcd \    --initial-cluster node1=http://172.19.15.92:2380,node2=http://172.19.15.93:2380,node3=http://172.19.15.94:2380

 

# 节点node2

docker run -d --name etcd --restart=always \    -p 2379:2379 \    -p 2380:2380 \    kubernetes/etcd:v3.2.4 \    /usr/local/bin/etcd \    --name node2 \    --initial-advertise-peer-urls http://172.19.15.93:2380 --listen-peer-urls http://0.0.0.0:2380 \    --advertise-client-urls http://172.19.15.93:2379 --listen-client-urls http://0.0.0.0:2379 \    --initial-cluster-state new \    --initial-cluster-token docker-etcd \    --initial-cluster node1=http://172.19.15.92:2380,node2=http://172.19.15.93:2380,node3=http://172.19.15.94:2380

 

# 节点node3

docker run -d --name etcd --restart=always \    -p 2379:2379 \    -p 2380:2380 \    kubernetes/etcd:v3.2.4 \    /usr/local/bin/etcd \    --name node3 \    --initial-advertise-peer-urls http://172.19.15.94:2380 --listen-peer-urls http://0.0.0.0:2380 \    --advertise-client-urls http://172.19.15.94:2379 --listen-client-urls http://0.0.0.0:2379 \    --initial-cluster-state new \    --initial-cluster-token docker-etcd \    --initial-cluster node1=http://172.19.15.92:2380,node2=http://172.19.15.93:2380,node3=http://172.19.15.94:2380

 

# 配置网络

1 [root@k8s ~]# docker exec etcd etcdctl set /k8s/network/config '{"Network":"192.100.0.1/16"}'2 {
   "Network":"192.100.0.1/16"}

 

# 查看 etcd 成员

1 [root@k8s ~]# docker exec etcd etcdctl member list2 14a0991cbae18c78: name=node3 peerURLs=http://172.19.15.94:2380 clientURLs=http://172.19.15.94:2379 isLeader=false3 33a95350dcc12573: name=node1 peerURLs=http://172.19.15.92:2380 clientURLs=http://172.19.15.92:2379 isLeader=true4 6cb8872859c66c95: name=node2 peerURLs=http://172.19.15.93:2380 clientURLs=http://172.19.15.93:2379 isLeader=false

 

# 查看 etcd 健康状态

1 [root@k8s ~]# docker exec etcd etcdctl cluster-health2 member 14a0991cbae18c78 is healthy: got healthy result from http://172.19.15.94:23793 member 33a95350dcc12573 is healthy: got healthy result from http://172.19.15.92:23794 member 6cb8872859c66c95 is healthy: got healthy result from http://172.19.15.93:23795 cluster is healthy

 

# docker 命令行启动

1 /usr/bin/dockerd --registry-mirror=http://f2d6cb40.m.daocloud.io --bip=192.100.68.1/24