配置阿里云docker镜像

配置好后 重新加载一下 daemon

[ jimmy]# systemctl daemon-reload
[ jimmy]# systemcel restart docker

重启后，docker pull 就会有飞一般的感觉 

如果报错下面的错，可以将 json 改成 .conf

Job for docker.service failed because the control process exited with error code. See "systemctl status docker.service" and "journalctl -xe" for details.

解决办法：将 /etc/docker/daemon.json 修改为 /etc/docker/daemon.conf

mv /etc/docker/daemon.json /etc/docker/daemon.conf