1.编辑docker.service
vim /usr/lib/systemd/system/docker.service
找到 ExecStart字段修改如下
ExecStart=/usr/bin/dockerd-current -H tcp://0.0.0.0:2375 -H unix://var/run/docker.sock
ExecStart=/usr/bin/dockerd -H tcp://0.0.0.0:2375 -H unix://var/run/docker.sock
2.重启docker重新读取配置文件,重新启动docker服务
systemctl daemon-reload
systemctl restart docker
3.开放防火墙端口
firewall-cmd --zone=public --add-port=2375/tcp --permanent
4.刷新防火墙
firewall-cmd --reload
5.在protainer中添加环境即可