先查看ubuntu 镜像版本：
a)sudo docker search ubuntu
结果：
wxsc@ubuntu:/usr/include/x86_64-linux-gnu/bits$ sudo docker search ubuntu NAME DESCRIPTION STARS OFFICIAL AUTOMATED ubuntu Ubuntu is a Debian-based Linux operating sys… 9102 [OK] dorowu/ubuntu-desktop-lxde-vnc Ubuntu with openssh-server and NoVNC 263 [OK] rastasheep/ubuntu-sshd Dockerized SSH service, built on top of offi… 198 [OK] consol/ubuntu-xfce-vnc Ubuntu container with "headless" VNC session… 152 [OK] ubuntu-upstart Upstart is an event-based replacement for th… 96 [OK] ansible/ubuntu14.04-ansible Ubuntu 14.04 LTS with ansible 95 [OK] neurodebian NeuroDebian provides neuroscience research s… 56 [OK] 1and1internet/ubuntu-16-nginx-php-phpmyadmin-mysql-5 ubuntu-16-nginx-php-phpmyadmin-mysql-5 48 [OK] ubuntu-debootstrap debootstrap --variant=minbase --components=m… 40 [OK] nuagebec/ubuntu Simple always updated Ubuntu docker images w… 23 [OK] tutum/ubuntu Simple Ubuntu docker images with SSH access 18 i386/ubuntu Ubuntu is a Debian-based Linux operating sys… 16 1and1internet/ubuntu-16-apache-php-7.0 ubuntu-16-apache-php-7.0 13 [OK] ppc64le/ubuntu Ubuntu is a Debian-based Linux operating sys… 12
下载需要的镜像
b)sudo docker pull ubuntu
查看下载好的镜像
c)sudo docker images
结果：
wxsc@ubuntu:/usr/include/x86_64-linux-gnu/bits$ sudo docker images REPOSITORY TAG IMAGE ID CREATED SIZE ubuntu latest 20bb25d32758 4 hours ago 87.5MB ubuntu_530 1.0 42f2e5f5b4a5 2 weeks ago 1.44GB
image id为：20bb25d32758 既是刚刚pull 的
创建容器：docker run 其实是 Run a command in a new container
d)sudo docker run -dit 20bb25d32758
查看所有的容器：
e)sudo docker container ls -a
结果：
wxsc@ubuntu:/usr/include/x86_64-linux-gnu/bits$ sudo docker container ls -a CONTAINER ID IMAGE COMMAND CREATED STATUS PORTS NAMES 28d5656eddc4 20bb25d32758 "/bin/bash" 7 minutes ago Up 7 minutes vigilant_liskov e0e164289853 ubuntu_530:1.0 "/bin/bash" 2 weeks ago Exited (255) 30 hours ago ubuntu_530
给新建容器重命名：
f)sudo docker rename vigilant_liskov spec2006
进入容器
g)sudo docker exec -it spec2006 "/bin/bash"