#准备三台CentOS7
#IP划分
192.168.1.201 virtualBox1
192168.1.202 virtualBox2
192168.1.204 virtualBox3
#三台机器上分别安装docker
#三台机器上分别配置加速器
vim /etc/docker/daemon.json #该文件原本没有需要新建
{
"registry-mirrors": [ "https://docker.mirrors.ustc.edu.cn" ]
}
#重新载入文件
systemctl daemon-reload
#重启docker
systemctl restart docker.service
#pull下来swarm镜像
docker pull swarm
#创建一台swarm 管理者节点,这里我用201那台当做管理节点,在201上执行
[root@virtualBox1 ~]# docker swarm init --advertise-addr=192.168.1.201
Swarm initialized: current node (9crsz9bs7jmkk7jeoevbqo85n) is now a manager.
To add a worker to this swarm, run the following command:
docker swarm join --token SWMTKN-1-3yikwpwd7obd6rnxrb0noza7i34hl3nh7pgpc8kc7o4qabeocm-4dv5q6qd48b18oee1xa2e97m0 192.168.1.201:2377
To add a manager to this swarm, run 'docker swarm join-token manager' and follow the instructions.
#在其他2台机器上执行上面粉色命令,即加入到swarm中
[root@virtualBox2 ~]# docker swarm join --token SWMTKN-1-3yikwpwd7obd6rnxrb0noza7i34hl3nh7pgpc8kc7o4qabeocm-4dv5q6qd48b18oee1xa2e97m0 192.168.1.201:2377
This node joined a swarm as a worker.
[root@virtualBox3 ~]# docker swarm join --token SWMTKN-1-3yikwpwd7obd6rnxrb0noza7i34hl3nh7pgpc8kc7o4qabeocm-4dv5q6qd48b18oee1xa2e97m0 192.168.1.201:2377
This node joined a swarm as a worker.
#在Master端查看所有node节点
[root@virtualBox1 ~]# docker node ls
ID HOSTNAME STATUS AVAILABILITY MANAGER STATUS ENGINE VERSION
9crsz9bs7jmkk7jeoevbqo85n * virtualBox1 Ready Active Leader 19.03.1
egyi8wm84gslxzam1i8flc1dv virtualBox2 Ready Active 19.03.1
rsl5npg6u72c67uutkaq63wsl virtualBox3 Ready Active 19.03.1