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<meta property="og:description" content="docker容器没有ping命令 解决方法 sudo apt-get update && apt-get install iputils-ping docker容器没有netstat，ifconfig命令 解决方法 sudo apt-get update && apt-get install net-tools docker如何ping两个容器 ... Docker 拷贝容器文件到宿主机 使用docker cp命令，详情查看docker help cp docker cp [OPTIONS] CONTAINER:SRC_PATH DEST_PATH|- CMD和ENTRYPOINT的区别 ENTRYPOINT启动的程序不会被docker run命令行指定的参数所覆盖，而且，这些命令行参数会被当作参数传递给ENTRYPOINT指定指定的程序。 Docker如何访问宿主机端口 假设一个Docker容器运行Nginx，而它想反向代理主机的Django应用，这种情况容器如何访问主机端口呢。第一种方式是把网络模式设置为hosts，这样主机和容器共享网络，但是打破了容器的隔离性。第二种方式：docker 18.03 …" />
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Docker常见问题
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<h5>docker容器没有ping命令</h5>
<p>解决方法</p>
<div class="highlight"><pre><span></span>sudo apt-get update <span class="o">&&</span> apt-get install iputils-ping
</pre></div>
<h5>docker容器没有netstat，ifconfig命令</h5>
<p>解决方法</p>
<div class="highlight"><pre><span></span>sudo apt-get update <span class="o">&&</span> apt-get install net-tools
</pre></div>
<h5>docker如何ping两个容器</h5>
<p>...</p>
<h5>Docker 拷贝容器文件到宿主机</h5>
<p>使用<code>docker cp</code>命令，详情查看<code>docker help cp</code></p>
<div class="highlight"><pre><span></span>docker cp <span class="o">[</span>OPTIONS<span class="o">]</span> CONTAINER:SRC_PATH DEST_PATH<span class="p">|</span>-
</pre></div>
<h5>CMD和ENTRYPOINT的区别</h5>
<p>ENTRYPOINT启动的程序不会被docker run命令行指定的参数所覆盖，而且，这些命令行参数会被当作参数传递给ENTRYPOINT指定指定的程序。</p>
<h5>Docker如何访问宿主机端口</h5>
<p>假设一个Docker容器运行Nginx，而它想反向代理主机的Django应用，这种情况容器如何访问主机端口呢。第一种方式是把网络模式设置为hosts，这样主机和容器共享网络，但是打破了容器的隔离性。第二种方式：docker 18.03 加入了一个 feature，在容器中可以通过 host.docker.internal 来访问主机。</p>
<p>怎么查看容器IP</p>
<div class="highlight"><pre><span></span>docker inspect --format<span class="o">=</span><span class="s1">'{{.NetworkSettings.IPAddress}}'</span> 容器名称<span class="p">|</span>容器id
docker inspect --format<span class="o">=</span><span class="s1">'{{.NetworkSettings.IPAddress}}'</span> 容器名称<span class="p">|</span> grep IPAddress
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