开启docker远程访问

1. 进入到/lib/systemd/system/docker.service

vim /lib/systemd/system/docker.service

2. 找到ExecStart行，修改成下边这样

ExecStart=/usr/bin/dockerd -H tcp://0.0.0.0:2375 -H unix:///var/run/docker.sock

3. 重启守护进程

systemctl daemon-reload

4. 重启docker

systemctl restart docker

5. 用浏览器访问验证

http://ip:2375/images/json