解决centos7中docker无法拉取镜像的问题

/etc/docker/daemon.json

{

"registry-mirrors": [

"https://docker.m.daocloud.io",

"https://dockerproxy.com",

"https://docker.mirrors.ustc.edu.cn",

"https://docker.nju.edu.cn",

"https://iju9kaj2.mirror.aliyuncs.com",

"http://hub-mirror.c.163.com",

"https://cr.console.aliyun.com",

"https://hub.docker.com",

"http://mirrors.ustc.edu.cn"

]

}