Docker configuration domestic mirror source

Step 1: Create a daemon.json file

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

Step 2: Copy the daemon.json file to the /etc/docker/ directory

sudo  mv daemon.json /etc/docker

Step 3: restart docker

systemctl daemon-reload && systemctl restart docker