01repository

1. centos 7 repository

   wget -O /etc/yum.repos.d/CentOS-Base.repo http://mirrors.aliyun.com/repo/Centos-7.repo
   curl -o /etc/yum.repos.d/CentOS-Base.repo http://mirrors.aliyun.com/repo/Centos-7.repo
   

2. docker 镜像源

   cat << EOF > /etc/docker/daemon.json
   {
     "registry-mirrors": [
       "https://dockerhub.icu"
     ]
   }
   EOF
   systemctl restart docker.service