centos7安装并配置docker

1、检查Linux内核版本，必须是3.10及以上
uname -r
yum update
2、安装docker
yum install docker
3、输入y确认安装

4、启动docker
[root@localhost ~]# systemctl start docker

[root@localhost ~]# docker -v
Docker version 1.12.6, build 3e8e77d/1.12.6

5、开机启动docker
[root@localhost ~]# systemctl enable docker
Created symlink from /etc/systemd/system/multi-user.target.wants/docker.service to /usr/lib/systemd/system/docker.service.

6、停止docker
systemctl stop docker