最近一直在使用docker 做一些试验，

每个新机器都需要部署docker的环境。

环境信息如下： RedHat 7.2， 安装 docker官方的安装 docker-engine

1.)
sudo rpm --import"https://sks-keyservers.net/pks/lookup?op=get&search=0xee6d536cf7dc86e2d7d56f59a178ac6c6238f52e"

2.)
sudo yum install -y yum-utils
sudo yum-config-manager --add-repohttps://packages.docker.com/1.10/yum/repo/main/centos/7

3.)
yum install docker-engine

[root@ip-172-30-0-123 ~]# yum info docker*
Loaded plugins: amazon-id, rhui-lb, search-disabled-repos
Installed Packages
Name        : docker-engine
Arch        : x86_64
Version     : 1.10.3.cs3
Release     : 1.el7.centos
Size        : 41 M
Repo        : installed
From repo   :packages.docker.com_1.10_yum_repo_main_centos_7
Summary     : The open-source applicationcontainer engine
URL         : https://dockerproject.org
License     : ASL 2.0
Description : Docker is an open source project to build, ship and run anyapplication as a
            : lightweightcontainer.
            :
            : Docker containers are bothhardware-agnostic and platform-agnostic. This means
            : they can run anywhere, fromyour laptop to the largest EC2 compute instance and
            : everything in between - andthey don't require you to use a particular
            : language, framework orpackaging system. That makes them great building blocks
            : for deploying and scalingweb apps, databases, and backend services without
            : depending on a particularstack or provider.

Name        : docker-engine-selinux
Arch        : noarch
Version     : 1.10.3.cs3
Release     : 1.el7.centos
Size        : 43 k
Repo        : installed
From repo   :packages.docker.com_1.10_yum_repo_main_centos_7
Summary     : SELinux Policies for theopen-source application container engine
URL         : https://dockerproject.org
License     : GPLv2
Description : SELinux policy modules for use with Docker

[root@ip-172-30-0-123 ~]#

4.)
systemctl enable docker.service
systemctl start docker.service
systemctl status  docker.service