查看系统版本
root@ubuntu:~# uname -a
Linux ubuntu 4.2.0-27-generic #32~14.04.1-Ubuntu SMP Fri Jan 22 15:32:26 UTC 2016 x86_64 x86_64 x86_64 GNU/Linux
查看device-mapper
root@ubuntu:~# ls -l /sys/class/misc/device-mapper
lrwxrwxrwx 1 root root 0 Jun 30 14:14 /sys/class/misc/device-mapper -> ../../devices/virtual/misc/device-mapper
安装docker
root@ubuntu:~# apt-get install docker.io
root@ubuntu:~# source /etc/bash_completion.d/docker
root@ubuntu:~# docker version
Client version: 1.6.2
Client API version: 1.18
Go version (client): go1.2.1
Git commit (client): 7c8fca2
OS/Arch (client): linux/amd64
Server version: 1.6.2
Server API version: 1.18
Go version (server): go1.2.1
Git commit (server): 7c8fca2
OS/Arch (server): linux/amd64
root@ubuntu:~#
启动一个容器
root@ubuntu:~# docker run ubuntu echo 'Hello World!'
Hello World!
root@ubuntu:~#
root@ubuntu:~# docker images
REPOSITORY TAG IMAGE ID CREATED VIRTUAL SIZE
ubuntu latest dc8dd8718e57 9 days ago 119.2 MB
root@ubuntu:~# docker ps -a
CONTAINER ID IMAGE COMMAND CREATED STATUS PORTS NAMES
5205c49f62d0 ubuntu:latest "echo 'Hello World!' About a minute ago Exited (0) About a minute ago angry_euclid
root@ubuntu:~#