在CentOS、Fedora系统中使用Docker的方法
<p><strong>一、从docker官方yum源进行安装</strong> </p><p>1、添加docker官方源</p>
<div class="jb51code">
<pre class="brush:bash;">cat >/etc/yum.repos.d/docker.repo <<-EOF
name=Docker Repository
baseurl=https://yum.dockerproject.org/repo/main/centos/7
enabled=1
gpgcheck=1
gpgkey=https://yum.dockerproject.org/gpg
EOF</pre>
</div>
<p>2、安装和启动</p>
<div class="jb51code">
<pre class="brush:bash;">#安装
sudo yum install docker-engine
#启动
sudo systemctl enable docker.service
#开机启动
systemctl enable docker.service
#验证安装
sudo docker run hello-world</pre>
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<p><strong>二、用脚本的方式安装</strong></p>
<div class="jb51code">
<pre class="brush:bash;">curl -sSL https://get.docker.com/ | sh</pre>
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<p><strong>三、非特权用户运行 docker 命令</strong> </p>
<p>在 CentOS 或 Fedora 上安装完成 Docker 后，为了能以非 root 用户运行 docker，你需要把你自己添加进 docker 用户组，使用如下命令：</p>
<div class="jb51code">
<pre class="brush:bash;">sudo usermod -a -G docker $USER</pre>
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<p>登出，然后再登入，以使组改变生效。 <br />这个时候，你应该可以以一个非特权用户运行 docker 命令了。 <br /></p>
<p><strong>四、使用国内源</strong> </p>
<p>1、安装dao</p>
<div class="jb51code">
<pre class="brush:bash;">curl -sSL https://get.daocloud.io/daomonit/install.sh | sh -s 6d3f36d42ae3f3d4237943c65c8f3e5446e49a71</pre>
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<p>2、使用dao命令</p>
<div class="jb51code">
<pre class="brush:bash;">dao pull ubuntu</pre>
</div>
<p>看起来像这样：</p>
<div class="jb51code">
<pre class="brush:bash;">➜~dao pull ubuntu
Dao from DaoCloud
Initializing, Please wait a minute
Using default tag: latest
Pulling repository daocloud.io/daocloud/daocloud-toolset
aa5dc2eecd4a: Download complete
Status: Image is up to date for daocloud.io/daocloud/daocloud-toolset:latest
daocloud.io/daocloud/daocloud-toolset: this image was pulled from a legacy registry.Important: This registry version will not be supported in future versions of docker.
Inital Success
# ----------------------------------------------------------------------------
# DaoCloud ToolBox for Docker
#
# DaoCloud, Inc. (c) 2015
#
# Fastest way to pull image from Docker Registry
# ----------------------------------------------------------------------------
Pulling repository ubuntu
Pulling ubuntu image metadata
Pulling ubuntu:latest tag metadata
0105f98ced6d: Load layer complete
66395c31eb82: Load layer complete
002fa881df8a: Load layer complete
a005e6b7dd01: Load layer complete
Loading image to docker ...
** Pull ubuntu success. **
You can find it with 'docker images ubuntu'</pre>
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<p>其他的可以参考琼殿技术社区之前发布的文章</p>
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