在fedora 31 安装docker
<h2>简介：</h2><p>本来没啥特别的，但是fedora使用的cgroup版本太高，docker还没跟上来。</p>
<p>就简单介绍一下怎么在fedora上安装docker吧</p>
<h2>一：回退cgroup</h2>
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<pre>$ <span style="color: rgba(0, 0, 255, 1)">sudo</span> dnf <span style="color: rgba(0, 0, 255, 1)">install</span> -<span style="color: rgba(0, 0, 0, 1)">y grubby
$ </span><span style="color: rgba(0, 0, 255, 1)">sudo</span> grubby --update-kernel=ALL --args=<span style="color: rgba(128, 0, 0, 1)">"</span><span style="color: rgba(128, 0, 0, 1)">systemd.unified_cgroup_hierarchy=0</span><span style="color: rgba(128, 0, 0, 1)">"</span><span style="color: rgba(0, 0, 0, 1)">
$ </span><span style="color: rgba(0, 0, 255, 1)">sudo</span> reboot</pre>
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<h2>二：添加docker源</h2>
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<pre>$ <span style="color: rgba(0, 0, 255, 1)">sudo</span> dnf config-manager --add-repo=https:<span style="color: rgba(0, 128, 0, 1)">//</span><span style="color: rgba(0, 128, 0, 1)">download.docker.com/linux/fedora/docker-ce.repo</span></pre>
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<h2>三：安装dockder-ce</h2>
<div class="cnblogs_code">
<pre>$ <span style="color: rgba(0, 0, 255, 1)">sudo</span> dnf <span style="color: rgba(0, 0, 255, 1)">install</span> docker-ce</pre>
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<h2>四：配置自动启动</h2>
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<pre>$ <span style="color: rgba(0, 0, 255, 1)">sudo</span> systemctl enable --now docker</pre>
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<h2>五：检查docker状态</h2>
<div class="cnblogs_code">
<pre>$ systemctl enable --<span style="color: rgba(0, 0, 0, 1)">now docker
Created symlink </span>/etc/systemd/system/multi-user.target.wants/docker.service → /usr/lib/systemd/system/<span style="color: rgba(0, 0, 0, 1)">docker.service.
# systemctl status docker
● docker.service </span>-<span style="color: rgba(0, 0, 0, 1)"> Docker Application Container Engine
Loaded: loaded (</span>/usr/lib/systemd/system/<span style="color: rgba(0, 0, 0, 1)">docker.service; enabled; vendor preset: disabled)
Active: active (running) since Fri </span><span style="color: rgba(128, 0, 128, 1)">2019</span>-<span style="color: rgba(128, 0, 128, 1)">10</span>-<span style="color: rgba(128, 0, 128, 1)">18</span> <span style="color: rgba(128, 0, 128, 1)">14</span>:<span style="color: rgba(128, 0, 128, 1)">11</span>:<span style="color: rgba(128, 0, 128, 1)">18</span><span style="color: rgba(0, 0, 0, 1)"> AEDT; 47s ago
Docs: https:</span><span style="color: rgba(0, 128, 0, 1)">//</span><span style="color: rgba(0, 128, 0, 1)">docs.docker.com</span>
Main PID: <span style="color: rgba(128, 0, 128, 1)">4081</span><span style="color: rgba(0, 0, 0, 1)"> (dockerd)
Tasks: </span><span style="color: rgba(128, 0, 128, 1)">13</span><span style="color: rgba(0, 0, 0, 1)">
Memory: </span><span style="color: rgba(128, 0, 128, 1)">40.5M</span><span style="color: rgba(0, 0, 0, 1)">
CPU: 524ms
CGroup: </span>/system.slice/<span style="color: rgba(0, 0, 0, 1)">docker.service
└─</span><span style="color: rgba(128, 0, 128, 1)">4081</span> /usr/bin/dockerd -H fd:<span style="color: rgba(0, 128, 0, 1)">//</span><span style="color: rgba(0, 128, 0, 1)"> --containerd=/run/containerd/containerd.sock</span></pre>
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<h2>六：可以安装docker-compose</h2>
<div class="cnblogs_code">
<pre>$ <span style="color: rgba(0, 0, 255, 1)">sudo</span> dnf <span style="color: rgba(0, 0, 255, 1)">install</span> docker-compose</pre>
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<p> </p>
<h2> </h2><br><br>
来源：https://www.cnblogs.com/jackadam/p/12077238.html
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