docker镜像加速

vi /etc/docker/daemon.json #编辑此文件，添加以下文件

{
	"registry-mirrors": [
		 "https://docker.mirrors.ustc.edu.cn",
		 "https://registry.docker-cn.com",
		 "http://hub-mirror.c.163.com",
		 "https://mirror.ccs.tencentyun.com"
	]
}