docker启动镜像而且持久化保存

须要启动systemd进程
docker run --privileged -tdi -p 8080:80 centos7-sshd-httpd-php56 init
docker inspect 

docker run --privileged -ti -d -p 8080:80 -v /mydata:/var/www/html centos7-sshd-httpd-php56 init