install docker
[root@localhost /]# yum -y install docker-io
change configuration file
[root@localhost /]# vi /etc/sysconfig/docker
other-args列更改为：other_args="--exec-driver=lxc --selinux-enabled"
start the docker service
[root@localhost /]# service docker start
Starting cgconfig service: [ OK ]
Starting docker: [ OK ]
Add docker to boot
[root@localhost /]# chkconfig docker on
Basic information view
docker version: View the version number of docker, including client, server, dependent Go, etc.
[root@localhost /]# docker version
Client version: 1.0.0
Client API version: 1.12
Go version (client): go1.2.2
Git commit (client): 63fe64c/1.0.0
Server version: 1.0.0
Server API version: 1.12
Go version (server): go1.2.2
Git commit (server): 63fe64c/1.0.0
docker info ：查看系统(docker)层面信息，包括管理的images, containers数等
[root@localhost /]# docker info
Containers: 16
Images: 40
Storage Driver: devicemapper
Pool Name: docker-253:0-1183580-pool
Data file: /var/lib/docker/devicemapper/devicemapper/data
Metadata file: /var/lib/docker/devicemapper/devicemapper/metadata
Data Space Used: 2180.4 Mb
Data Space Total: 102400.0 Mb
Metadata Space Used: 3.4 Mb
Metadata Space Total: 2048.0 Mb
Execution Driver: lxc-0.9.0
Kernel Version: 2.6.32-431.el6.x86_64