yum -y install epel-release
yum -y install docker-io
yum install device-mapper-event-libs # 必需安装这一步，否则报pid文件存在，进程已死
service docker start
docker images
yum -y install epel-release
yum -y install docker-io
yum install device-mapper-event-libs # 必需安装这一步，否则报pid文件存在，进程已死
service docker start
docker images