常用docker命令
http://blog.csdn.net/wsscy2004/article/details/25878363
进入docker
root@xiongbolong-VirtualBox:~# docker ps
root@xiongbolong-VirtualBox:~# docker run -it -d -p 80:80 nginx
root@xiongbolong-VirtualBox:~# docker exec -i -t 22cd69b9b64a5b7e32d1694007931648c63466e64552b4202c21cdecfa547163 /bin/bash