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
