docker版本
支持平台
centos7 安装docker
社区办(community  Edition,简称:CE)
企业办(Enterprise  Edition,简称:EE)

        [root@test-2 ~]# /bin/systemctl disable firewalld
        [root@localhost ~]#?getenforce                 #查看selinux是否开启
        Enforcing                                         #enforcing表示selinux开启的,
        [root@test-2 ~]# sed -i ‘s/SELINUX=enforcing/SELINUX=disabled/g‘  /etc/selinux/config      #修改配置文件,需要重启才后永久关闭
        [root@test-2 ~]# setenforce 0      #临时关闭selinx
        [root@test-2 ~]# getenforce      #查看是否关闭
        Disabled
[root@test-2 ~]# yum install -y yum-utils device-mapper-persistent-data   lvm2
        [root@test-2 ~]#  yum-config-manager     --add-repo     https://download.docker.com/linux/centos/docker-ce.repo
        [root@test-2 ~]# yum install -y docker-ce
        [root@test-2 ~]# /bin/systemctl start docker
        [root@test-2 ~]# /bin/systemctl enable docker      #设置开机启动
        Created symlink from /etc/systemd/system/multi-user.target.wants/docker.service to /usr/lib/systemd/system/docker.service.原文:http://blog.51cto.com/scajy/2318061