vi /etc/docker/daemon.json # 内容如下：

{ "registry-mirrors": [

"https://xx4bwyg2.mirror.aliyuncs.com",

"http://f1361db2.m.daocloud.io",

"https://registry.docker-cn.com",

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

"https://docker.mirrors.ustc.edu.cn" ] }{}

# 退出并保存 :wq

# 使配置生效 systemctl daemon-reload

# 重启Docker systemctl restart docker