1、系统环境
Docker 要求 CentOS 系统的内核版本高于 3.10 ，查看本页面的前提条件来验证你的CentOS 版本是否支持 Docker 。
通过 uname -r 命令查看你当前的内核版本
1 [root@localhost ~]# uname -a 2 Linux localhost.localdomain 3.10.0-229.el7.x86_64 #1 SMP Fri Mar 6 11:36:42 UTC 2015 x86_64 x86_64 x86_64 GNU/Linux
2、安装 Docker
Docker 软件包和依赖包已经包含在默认的 CentOS-Extras 软件源里，安装命令如下：
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3 、启动docker服务
[root@localhost ~]# service docker start Redirecting to /bin/systemctl start docker.service [root@localhost ~]#
4、测试运行 hello-world
[root@localhost ~]# docker run hello-world Unable to find image 'hello-world:latest' locally Trying to pull repository docker.io/library/hello-world ... latest: Pulling from docker.io/library/hello-world b04784fba78d: Pull complete Digest: sha256:f3b3b28a45160805bb16542c9531888519430e9e6d6ffc09d72261b0d26ff74f Hello from Docker! This message shows that your installation appears to be working correctly. To generate this message, Docker took the following steps: 1. The Docker client contacted the Docker daemon. 2. The Docker daemon pulled the "hello-world" image from the Docker Hub. 3. The Docker daemon created a new container from that image which runs the executable that produces the output you are currently reading. 4. The Docker daemon streamed that output to the Docker client, which sent it to your terminal. To try something more ambitious, you can run an Ubuntu container with: $ docker run -it ubuntu bash Share images, automate workflows, and more with a free Docker ID: https://cloud.docker.com/ For more examples and ideas, visit: https://docs.docker.com/engine/userguide/
参考 http://www.runoob.com/docker/docker-tutorial.html
本文转自茄子_2008博客园博客，原文链接：http://www.cnblogs.com/xd502djj/p/7374159.html，如需转载请自行联系原作者。
