使用Docker（二）在Centos7上安装并配置镜像加速

    确定Centos版本是否是7及以上
    
    sudo vim /etc/redhat-release
    
    
      
      
      
    

    https://docs.docker.com/engine/install/centos
    
    
      
    

    sudo yum remove docker \
              docker-client \
              docker-client-latest \
              docker-common \
              docker-latest \
              docker-latest-logrotate \
              docker-logrotate \
              docker-engine