Docker 学习记录Html
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<div id='write' class = 'is-node'><h1><a name='header-n1129' class='md-header-anchor '></a>Docker 从入门到放弃</h1><hr /><blockquote><p>三个基本概念</p><ul><li>镜像<code>Image</code></li><li>容器<code>Container</code></li><li>仓库`Repository</li></ul></blockquote><p>镜像：类似面向对象程序设计中的<code>类</code>，静态的定义</p><p>容器：类似期中的<code>实例</code>，镜像运行时的实体，可以被创建、启动、停止、删除、暂停。</p><p> </p><h4><a name='header-n1146' class='md-header-anchor '></a>Docker 常用命令</h4><hr /><ol start='' ><li>安装</li></ol><pre spellcheck="false" class="md-fences md-end-block ty-contain-cm modeLoaded" lang="python" style="break-inside: unset;"><div class="CodeMirror cm-s-inner CodeMirror-wrap" lang="python"><div style="overflow: hidden; position: relative; width: 3px; height: 0px; top: 0px; left: 8.16406px;"><textarea autocorrect="off" autocapitalize="off" spellcheck="false" tabindex="0" style="position: absolute; bottom: -1em; padding: 0px; width: 1000px; height: 1em; outline: none;"></textarea></div><div class="CodeMirror-scrollbar-filler" cm-not-content="true"></div><div class="CodeMirror-gutter-filler" cm-not-content="true"></div><div class="CodeMirror-scroll" tabindex="-1"><div class="CodeMirror-sizer" style="margin-left: 0px; margin-bottom: 0px; border-right-width: 0px; padding-right: 0px; padding-bottom: 0px;"><div style="position: relative; top: 0px;"><div class="CodeMirror-lines" role="presentation"><div role="presentation" style="position: relative; outline: none;"><div class="CodeMirror-measure"><pre><span>xxxxxxxxxx</span></pre></div><div class="CodeMirror-measure"></div><div style="position: relative; z-index: 1;"></div><div class="CodeMirror-code" role="presentation" style=""><div class="CodeMirror-activeline" style="position: relative;"><div class="CodeMirror-activeline-background CodeMirror-linebackground"></div><div class="CodeMirror-gutter-background CodeMirror-activeline-gutter" style="left: 0px; width: 0px;"></div><pre class=" CodeMirror-line " role="presentation"><span role="presentation" style="padding-right: 0.1px;"> <span class="cm-comment"># 卸载旧版本</span></span></pre></div><pre class=" CodeMirror-line " role="presentation"><span role="presentation" style="padding-right: 0.1px;"> <span class="cm-error cm-error">$</span> <span class="cm-variable">sudo</span> <span class="cm-variable">apt</span><span class="cm-operator">-</span><span class="cm-variable">get</span> <span class="cm-variable">remove</span> <span class="cm-variable">docker</span> <span class="cm-error">\</span></span></pre><pre class=" CodeMirror-line " role="presentation"><span role="presentation" style="padding-right: 0.1px;"> <span class="cm-variable">docker</span><span class="cm-operator">-</span><span class="cm-variable">engine</span> <span class="cm-error">\</span></span></pre><pre class=" CodeMirror-line " role="presentation"><span role="presentation" style="padding-right: 0.1px;"> <span class="cm-variable">docker</span>.<span class="cm-property">io</span></span></pre><pre class=" CodeMirror-line " role="presentation"><span role="presentation" style="padding-right: 0.1px;"> </span></pre><pre class=" CodeMirror-line " role="presentation"><span role="presentation" style="padding-right: 0.1px;"><span class="cm-null cm-error"> </span><span class="cm-comment"># 更新源</span></span></pre><pre class=" CodeMirror-line " role="presentation"><span role="presentation" style="padding-right: 0.1px;"> <span class="cm-error cm-error">$</span> <span class="cm-variable">sudo</span> <span class="cm-variable">apt</span><span class="cm-operator">-</span><span class="cm-variable">get</span> <span class="cm-variable">update</span></span></pre><pre class=" CodeMirror-line " role="presentation"><span role="presentation" style="padding-right: 0.1px;"> <span class="cm-comment"># 安装</span></span></pre><pre class=" CodeMirror-line " role="presentation"><span role="presentation" style="padding-right: 0.1px;"> <span class="cm-error cm-error">$</span> <span class="cm-variable">sudo</span> <span class="cm-variable">apt</span><span class="cm-operator">-</span><span class="cm-variable">get</span> <span class="cm-variable">install</span> <span class="cm-error">\</span></span></pre><pre class=" CodeMirror-line " role="presentation"><span role="presentation" style="padding-right: 0.1px;"> <span class="cm-variable">apt</span><span class="cm-operator">-</span><span class="cm-variable">transport</span><span class="cm-operator">-</span><span class="cm-variable">https</span> <span class="cm-error">\</span></span></pre><pre class=" CodeMirror-line " role="presentation"><span role="presentation" style="padding-right: 0.1px;"> <span class="cm-variable">ca</span><span class="cm-operator">-</span><span class="cm-variable">certificates</span> <span class="cm-error">\</span></span></pre><pre class=" CodeMirror-line " role="presentation"><span role="presentation" style="padding-right: 0.1px;"> <span class="cm-variable">curl</span> <span class="cm-error">\</span></span></pre><pre class=" CodeMirror-line " role="presentation"><span role="presentation" style="padding-right: 0.1px;"> <span class="cm-variable">software</span><span class="cm-operator">-</span><span class="cm-variable">properties</span><span class="cm-operator">-</span><span class="cm-variable">common</span></span></pre><pre class=" CodeMirror-line " role="presentation"><span role="presentation" style="padding-right: 0.1px;"> </span></pre><pre class=" CodeMirror-line " role="presentation"><span role="presentation" style="padding-right: 0.1px;"><span class="cm-null cm-error"> </span><span class="cm-comment"># 国内源添加密钥(如果没有代理服务器)</span></span></pre><pre class=" CodeMirror-line " role="presentation"><span role="presentation" style="padding-right: 0.1px;"> <span class="cm-error cm-error">$</span> <span class="cm-variable">curl</span> <span class="cm-operator">-</span><span class="cm-variable">fsSL</span> <span class="cm-variable">https</span>:<span class="cm-operator">//</span><span class="cm-variable">mirrors</span>.<span class="cm-property">ustc</span>.<span class="cm-property">edu</span>.<span class="cm-property">cn</span><span class="cm-operator">/</span><span class="cm-variable">docker</span><span class="cm-operator">-</span><span class="cm-variable">ce</span><span class="cm-operator">/</span><span class="cm-variable">linux</span><span class="cm-operator">/</span><span class="cm-variable">ubuntu</span><span class="cm-operator">/</span><span class="cm-variable">gpg</span> <span class="cm-operator">|</span> <span class="cm-variable">sudo</span> <span class="cm-variable">apt</span><span class="cm-operator">-</span><span class="cm-variable">key</span> <span class="cm-variable">add</span> <span class="cm-operator">-</span></span></pre><pre class=" CodeMirror-line " role="presentation"><span role="presentation" style="padding-right: 0.1px;"> </span></pre><pre class=" CodeMirror-line " role="presentation"><span role="presentation" style="padding-right: 0.1px;"><span class="cm-null cm-error"> </span><span class="cm-comment"># 官方源添加密钥（二者选其一）</span></span></pre><pre class=" CodeMirror-line " role="presentation"><span role="presentation" style="padding-right: 0.1px;"> <span class="cm-error cm-error">$</span> <span class="cm-variable">curl</span> <span class="cm-operator">-</span><span class="cm-variable">fsSL</span> <span class="cm-variable">https</span>:<span class="cm-operator">//</span><span class="cm-variable">download</span>.<span class="cm-property">docker</span>.<span class="cm-property">com</span><span class="cm-operator">/</span><span class="cm-variable">linux</span><span class="cm-operator">/</span><span class="cm-variable">ubuntu</span><span class="cm-operator">/</span><span class="cm-variable">gpg</span> <span class="cm-operator">|</span> <span class="cm-variable">sudo</span> <span class="cm-variable">apt</span><span class="cm-operator">-</span><span class="cm-variable">key</span> <span class="cm-variable">add</span> <span class="cm-operator">-</span></span></pre><pre class=" CodeMirror-line " role="presentation"><span role="presentation" style="padding-right: 0.1px;"> </span></pre><pre class=" CodeMirror-line " role="presentation"><span role="presentation" style="padding-right: 0.1px;"><span class="cm-null cm-error"> </span><span class="cm-comment"># 在 source.list 添加Docker软件源</span></span></pre><pre class=" CodeMirror-line " role="presentation"><span role="presentation" style="padding-right: 0.1px;"> <span class="cm-error cm-error">$</span> <span class="cm-variable">sudo</span> <span class="cm-variable">add</span><span class="cm-operator">-</span><span class="cm-variable">apt</span><span class="cm-operator">-</span><span class="cm-variable">repository</span> <span class="cm-error">\</span></span></pre><pre class=" CodeMirror-line " role="presentation"><span role="presentation" style="padding-right: 0.1px;"> <span class="cm-string">"deb [arch=amd64] https://mirrors.ustc.edu.cn/docker-ce/linux/ubuntu \</span></span></pre><pre class=" CodeMirror-line " role="presentation"><span role="presentation" style="padding-right: 0.1px;"><span class="cm-string"> $(lsb_release -cs) \</span></span></pre><pre class=" CodeMirror-line " role="presentation"><span role="presentation" style="padding-right: 0.1px;"><span class="cm-string"> stable"</span></span></pre><pre class=" CodeMirror-line " role="presentation"><span role="presentation" style="padding-right: 0.1px;"> </span></pre><pre class=" CodeMirror-line " role="presentation"><span role="presentation" style="padding-right: 0.1px;"><span class="cm-null cm-error"> </span><span class="cm-comment"># 官方源（二者选其一）</span></span></pre><pre class=" CodeMirror-line " role="presentation"><span role="presentation" style="padding-right: 0.1px;"> <span class="cm-comment"># $ sudo add-apt-repository \</span></span></pre><pre class=" CodeMirror-line " role="presentation"><span role="presentation" style="padding-right: 0.1px;"> <span class="cm-comment"># "deb [arch=amd64] https://download.docker.com/linux/ubuntu \</span></span></pre><pre class=" CodeMirror-line " role="presentation"><span role="presentation" style="padding-right: 0.1px;"> <span class="cm-comment"># $(lsb_release -cs) \</span></span></pre><pre class=" CodeMirror-line " role="presentation"><span role="presentation" style="padding-right: 0.1px;"> <span class="cm-comment"># stable"</span></span></pre><pre class=" CodeMirror-line " role="presentation"><span role="presentation" style="padding-right: 0.1px;"> </span></pre><pre class=" CodeMirror-line " role="presentation"><span role="presentation" style="padding-right: 0.1px;"><span class="cm-null cm-error"> </span></span></pre><pre class=" CodeMirror-line " role="presentation"><span role="presentation" style="padding-right: 0.1px;"> <span class="cm-comment"># 安装Docker CE</span></span></pre><pre class=" CodeMirror-line " role="presentation"><span role="presentation" style="padding-right: 0.1px;"> <span class="cm-error">$</span> <span class="cm-variable">sudo</span> <span class="cm-variable">apt</span><span class="cm-operator">-</span><span class="cm-variable">get</span> <span class="cm-variable">update</span></span></pre><pre class=" CodeMirror-line " role="presentation"><span role="presentation" style="padding-right: 0.1px;"> <span class="cm-error cm-error">$</span> <span class="cm-variable">sudo</span> <span class="cm-variable">apt</span><span class="cm-operator">-</span><span class="cm-variable">get</span> <span class="cm-variable">install</span> <span class="cm-variable">docker</span><span class="cm-operator">-</span><span class="cm-variable">ce</span></span></pre><pre class=" CodeMirror-line " role="presentation"><span role="presentation" style="padding-right: 0.1px;"> </span></pre><pre class=" CodeMirror-line " role="presentation"><span role="presentation" style="padding-right: 0.1px;"> <span class="cm-comment"># 脚本自动化安装（二选一）</span></span></pre><pre class=" CodeMirror-line " role="presentation"><span role="presentation" style="padding-right: 0.1px;"> <span class="cm-error">$</span> <span class="cm-variable">curl</span> <span class="cm-operator">-</span><span class="cm-variable">fsSL</span> <span class="cm-variable">get</span>.<span class="cm-property">docker</span>.<span class="cm-property">com</span> <span class="cm-operator">-</span><span class="cm-variable">o</span> <span class="cm-variable">get</span><span class="cm-operator">-</span><span class="cm-variable">docker</span>.<span class="cm-property">sh</span></span></pre><pre class=" CodeMirror-line " role="presentation"><span role="presentation" style="padding-right: 0.1px;"> <span class="cm-error cm-error">$</span> <span class="cm-variable">sudo</span> <span class="cm-variable">sh</span> <span class="cm-variable">get</span><span class="cm-operator">-</span><span class="cm-variable">docker</span>.<span class="cm-property">sh</span> <span class="cm-operator">--</span><span class="cm-variable">mirror</span> <span class="cm-variable">Aliyun</span></span></pre><pre class=" CodeMirror-line " role="presentation"><span role="presentation" style="padding-right: 0.1px;"><span cm-text=""></span></span></pre><pre class=" CodeMirror-line " role="presentation"><span role="presentation" style="padding-right: 0.1px;"> <span class="cm-comment"># 启动 Docker CE</span></span></pre><pre class=" CodeMirror-line " role="presentation"><span role="presentation" style="padding-right: 0.1px;"> <span class="cm-error cm-error">$</span> <span class="cm-variable">sudo</span> <span class="cm-variable">systemctl</span> <span class="cm-variable">enable</span> <span class="cm-variable">docker</span></span></pre><pre class=" CodeMirror-line " role="presentation"><span role="presentation" style="padding-right: 0.1px;"> <span class="cm-error">$</span> <span class="cm-variable">sudo</span> <span class="cm-variable">systemctl</span> <span class="cm-variable">start</span> <span class="cm-variable">docker</span></span></pre><pre class=" CodeMirror-line " role="presentation"><span role="presentation" style="padding-right: 0.1px;"> </span></pre><pre class=" CodeMirror-line " role="presentation"><span role="presentation" style="padding-right: 0.1px;"><span class="cm-null cm-error"> </span><span class="cm-comment"># 建立 Docker 用户组</span></span></pre><pre class=" CodeMirror-line " role="presentation"><span role="presentation" style="padding-right: 0.1px;"> <span class="cm-error cm-error">$</span> <span class="cm-variable">sudo</span> <span class="cm-variable">groupadd</span> <span class="cm-variable">docker</span></span></pre><pre class=" CodeMirror-line " role="presentation"><span role="presentation" style="padding-right: 0.1px;"> </span></pre><pre class=" CodeMirror-line " role="presentation"><span role="presentation" style="padding-right: 0.1px;"> <span class="cm-comment"># 将当前用户加入 docker 组</span></span></pre><pre class=" CodeMirror-line " role="presentation"><span role="presentation" style="padding-right: 0.1px;"> <span class="cm-error">$</span> <span class="cm-variable">sudo</span> <span class="cm-variable">usermod</span> <span class="cm-operator">-</span><span class="cm-variable">aG</span> <span class="cm-variable">docker</span> <span class="cm-variable">ruanheng</span></span></pre><pre class=" CodeMirror-line " role="presentation"><span role="presentation" style="padding-right: 0.1px;"> </span></pre><pre class=" CodeMirror-line " role="presentation"><span role="presentation" style="padding-right: 0.1px;"><span class="cm-null cm-error"> </span><span class="cm-comment"># 测试当前Docker是否安装正确</span></span></pre><pre class=" CodeMirror-line " role="presentation"><span role="presentation" style="padding-right: 0.1px;"> <span class="cm-error cm-error">$</span> <span class="cm-variable">docker</span> <span class="cm-variable">run</span> <span class="cm-variable">hello</span><span class="cm-operator">-</span><span class="cm-variable">world</span></span></pre><pre class=" CodeMirror-line " role="presentation"><span role="presentation" style="padding-right: 0.1px;"> <span class="cm-comment"># 输出以下信息则表示安装成功</span></span></pre><pre class=" CodeMirror-line " role="presentation"><span role="presentation" style="padding-right: 0.1px;"> <span class="cm-variable cm-error">Unable</span> <span class="cm-variable">to</span> <span class="cm-variable">find</span> <span class="cm-variable">image</span> <span class="cm-string">'hello-world:latest'</span> <span class="cm-variable">locally</span></span></pre><pre class=" CodeMirror-line " role="presentation"><span role="presentation" style="padding-right: 0.1px;"> <span class="cm-variable">latest</span>: <span class="cm-variable">Pulling</span> <span class="cm-keyword">from</span> <span class="cm-variable">library</span><span class="cm-operator">/</span><span class="cm-variable">hello</span><span class="cm-operator">-</span><span class="cm-variable">world</span></span></pre><pre class=" CodeMirror-line " role="presentation"><span role="presentation" style="padding-right: 0.1px;"> <span class="cm-null cm-error">.</span>..</span></pre><pre class=" CodeMirror-line " role="presentation"><span role="presentation" style="padding-right: 0.1px;"> <span class="cm-property">Hello</span> <span class="cm-keyword">from</span> <span class="cm-variable">Docker</span><span class="cm-operator">!</span></span></pre><pre class=" CodeMirror-line " role="presentation"><span role="presentation" style="padding-right: 0.1px;"> <span class="cm-variable cm-error">This</span> <span class="cm-variable">message</span> <span class="cm-variable">shows</span> <span class="cm-variable">that</span> <span class="cm-variable">your</span> <span class="cm-variable">installation</span> <span class="cm-variable">appears</span> <span class="cm-variable">to</span> <span class="cm-variable">be</span> <span class="cm-variable">working</span> <span class="cm-variable">correctly</span>.</span></pre><pre class=" CodeMirror-line " role="presentation"><span role="presentation" style="padding-right: 0.1px;"> ...</span></pre><pre class=" CodeMirror-line " role="presentation"><span role="presentation" style="padding-right: 0.1px;"> </span></pre><pre class=" CodeMirror-line " role="presentation"><span role="presentation" style="padding-right: 0.1px;"><span class="cm-null cm-error"> </span><span class="cm-comment"># 安装镜像加速（鉴于国内拉去镜像困难，有加速器则可以忽略 ：）</span></span></pre><pre class=" CodeMirror-line " role="presentation"><span role="presentation" style="padding-right: 0.1px;"> </span></pre><pre class=" CodeMirror-line " role="presentation"><span role="presentation" style="padding-right: 0.1px;"><span class="cm-null cm-error"> </span><span class="cm-error">$</span> <span class="cm-variable">sudo</span> <span class="cm-variable">vim</span> <span class="cm-operator">/</span><span class="cm-variable">etc</span><span class="cm-operator">/</span><span class="cm-variable">docker</span><span class="cm-operator">/</span><span class="cm-variable">daemon</span>.<span class="cm-property">json</span></span></pre><pre class=" CodeMirror-line " role="presentation"><span role="presentation" style="padding-right: 0.1px;"> </span></pre><pre class=" CodeMirror-line " role="presentation"><span role="presentation" style="padding-right: 0.1px;"><span class="cm-null cm-error"> </span><span class="cm-comment"># 加入以下内容</span></span></pre><pre class=" CodeMirror-line " role="presentation"><span role="presentation" style="padding-right: 0.1px;"> <span class="cm-null cm-error">{</span></span></pre><pre class=" CodeMirror-line " role="presentation"><span role="presentation" style="padding-right: 0.1px;"> <span class="cm-string">"registry-mirrors"</span>: [</span></pre><pre class=" CodeMirror-line " role="presentation"><span role="presentation" style="padding-right: 0.1px;"> <span class="cm-string">"https://registry.docker-cn.com"</span></span></pre><pre class=" CodeMirror-line " role="presentation"><span role="presentation" style="padding-right: 0.1px;"> ]</span></pre><pre class=" CodeMirror-line " role="presentation"><span role="presentation" style="padding-right: 0.1px;"> }</span></pre><pre class=" CodeMirror-line " role="presentation"><span role="presentation" style="padding-right: 0.1px;"> </span></pre><pre class=" CodeMirror-line " role="presentation"><span role="presentation" style="padding-right: 0.1px;"> <span class="cm-comment"># 重启服务</span></span></pre><pre class=" CodeMirror-line " role="presentation"><span role="presentation" style="padding-right: 0.1px;"> <span class="cm-error">$</span> <span class="cm-variable">sudo</span> <span class="cm-variable">systemctl</span> <span class="cm-variable">daemon</span><span class="cm-operator">-</span><span class="cm-variable">reload</span></span></pre><pre class=" CodeMirror-line " role="presentation"><span role="presentation" style="padding-right: 0.1px;"> <span class="cm-error cm-error">$</span> <span class="cm-variable">sudo</span> <span class="cm-variable">systemctl</span> <span class="cm-variable">restart</span> <span class="cm-variable">docker</span></span></pre><pre class=" CodeMirror-line " role="presentation"><span role="presentation" style="padding-right: 0.1px;"> </span></pre><pre class=" CodeMirror-line " role="presentation"><span role="presentation" style="padding-right: 0.1px;"> <span class="cm-comment"># 检查是否生效</span></span></pre><pre class=" CodeMirror-line " role="presentation"><span role="presentation" style="padding-right: 0.1px;"> <span class="cm-error">$</span> <span class="cm-variable">docker</span> <span class="cm-variable">info</span> </span></pre><pre class=" CodeMirror-line " role="presentation"><span role="presentation" style="padding-right: 0.1px;"> </span></pre><pre class=" CodeMirror-line " role="presentation"><span role="presentation" style="padding-right: 0.1px;"><span class="cm-null cm-error"> </span><span class="cm-comment"># 如下提示则表示安装成功，继续下一步 :)</span></span></pre><pre class=" CodeMirror-line " role="presentation"><span role="presentation" style="padding-right: 0.1px;"> <span class="cm-variable cm-error">Registry</span> <span class="cm-variable">Mirrors</span>:</span></pre><pre class=" CodeMirror-line " role="presentation"><span role="presentation" style="padding-right: 0.1px;"> <span class="cm-tab" role="presentation" cm-text=" "> </span><span class="cm-variable">https</span>:<span class="cm-operator">//</span><span class="cm-variable">registry</span>.<span class="cm-property">docker</span><span class="cm-operator">-</span><span class="cm-variable">cn</span>.<span class="cm-property">com</span><span class="cm-operator">/</span></span></pre><pre class=" CodeMirror-line " role="presentation"><span role="presentation" style="padding-right: 0.1px;"> </span></pre></div></div></div></div></div><div style="position: absolute; height: 0px; width: 1px; border-bottom: 0px solid transparent; top: 1913px;"></div><div class="CodeMirror-gutters" style="display: none; height: 1913px;"></div></div></div></pre><p> </p><ol start='2' ><li><p>获取<code>Docker</code>三大件之一：<code>镜像</code></p><pre spellcheck="false" class="md-fences md-end-block ty-contain-cm modeLoaded" lang="python"><div class="CodeMirror cm-s-inner CodeMirror-wrap" lang="python"><div style="overflow: hidden; position: relative; width: 3px; height: 0px; top: 0px; left: 8.16406px;"><textarea autocorrect="off" autocapitalize="off" spellcheck="false" tabindex="0" style="position: absolute; bottom: -1em; padding: 0px; width: 1000px; height: 1em; outline: none;"></textarea></div><div class="CodeMirror-scrollbar-filler" cm-not-content="true"></div><div class="CodeMirror-gutter-filler" cm-not-content="true"></div><div class="CodeMirror-scroll" tabindex="-1"><div class="CodeMirror-sizer" style="margin-left: 0px; margin-bottom: 0px; border-right-width: 0px; padding-right: 0px; padding-bottom: 0px;"><div style="position: relative; top: 0px;"><div class="CodeMirror-lines" role="presentation"><div role="presentation" style="position: relative; outline: none;"><div class="CodeMirror-measure"><pre><span>xxxxxxxxxx</span></pre></div><div class="CodeMirror-measure"></div><div style="position: relative; z-index: 1;"></div><div class="CodeMirror-code" role="presentation"><div class="CodeMirror-activeline" style="position: relative;"><div class="CodeMirror-activeline-background CodeMirror-linebackground"></div><div class="CodeMirror-gutter-background CodeMirror-activeline-gutter" style="left: 0px; width: 0px;"></div><pre class=" CodeMirror-line " role="presentation"><span role="presentation" style="padding-right: 0.1px;"><span class="cm-comment"># 拉取镜像命令</span></span></pre></div><pre class=" CodeMirror-line " role="presentation"><span role="presentation" style="padding-right: 0.1px;"><span class="cm-error">$</span> <span class="cm-variable">docker</span> <span class="cm-variable">pull</span> [<span class="cm-variable">选项</span>] [<span class="cm-variable">Docker</span> <span class="cm-variable">Registry</span> <span class="cm-variable">地址</span>[:<span class="cm-variable">端口号</span>]<span class="cm-operator">/</span>]<span class="cm-variable">仓库名</span>[:<span class="cm-variable">标签</span>]</span></pre><pre class=" CodeMirror-line " role="presentation"><span role="presentation" style="padding-right: 0.1px;"><span cm-text=""></span></span></pre></div></div></div></div></div><div style="position: absolute; height: 0px; width: 1px; border-bottom: 0px solid transparent; top: 68px;"></div><div class="CodeMirror-gutters" style="display: none; height: 68px;"></div></div></div></pre><blockquote><p>具体的选项可以通过 docker pull --help 命令看到，这里我们说一下镜像名称的格式。</p></blockquote></li></ol><ul><li>Docker 镜像仓库地址：地址的格式一般是 <域名/IP>[:端口号]。默认地址是 Docker Hub。</li><li>仓库名：如之前所说，这里的仓库名是两段式名称，即 <用户名>/<软件名>。对于 Docker Hub，如果不给出用户名，则默认为 library，也就是官方镜像。 </li></ul><p> </p><pre spellcheck="false" class="md-fences md-end-block ty-contain-cm modeLoaded" lang=""><div class="CodeMirror cm-s-inner CodeMirror-wrap" lang=""><div style="overflow: hidden; position: relative; width: 3px; height: 0px; top: 0px; left: 8.16406px;"><textarea autocorrect="off" autocapitalize="off" spellcheck="false" tabindex="0" style="position: absolute; bottom: -1em; padding: 0px; width: 1000px; height: 1em; outline: none;"></textarea></div><div class="CodeMirror-scrollbar-filler" cm-not-content="true"></div><div class="CodeMirror-gutter-filler" cm-not-content="true"></div><div class="CodeMirror-scroll" tabindex="-1"><div class="CodeMirror-sizer" style="margin-left: 0px; margin-bottom: 0px; border-right-width: 0px; padding-right: 0px; padding-bottom: 0px;"><div style="position: relative; top: 0px;"><div class="CodeMirror-lines" role="presentation"><div role="presentation" style="position: relative; outline: none;"><div class="CodeMirror-measure"><pre><span>xxxxxxxxxx</span></pre></div><div class="CodeMirror-measure"></div><div style="position: relative; z-index: 1;"></div><div class="CodeMirror-code" role="presentation" style=""><div class="CodeMirror-activeline" style="position: relative;"><div class="CodeMirror-activeline-background CodeMirror-linebackground"></div><div class="CodeMirror-gutter-background CodeMirror-activeline-gutter" style="left: 0px; width: 0px;"></div><pre class=" CodeMirror-line " role="presentation"><span role="presentation" style="padding-right: 0.1px;">```python</span></pre></div><div class="" style="position: relative;"><pre class=" CodeMirror-line " role="presentation"><span role="presentation" style="padding-right: 0.1px;"># 尝试拉取</span></pre></div><pre class=" CodeMirror-line " role="presentation"><span role="presentation" style="padding-right: 0.1px;">$ docker pull ubuntu:16.04</span></pre><pre class=" CodeMirror-line " role="presentation"><span role="presentation" style="padding-right: 0.1px;">16.04: Pulling from library/ubuntu</span></pre><pre class=" CodeMirror-line " role="presentation"><span role="presentation" style="padding-right: 0.1px;">18d680d61657: Pull complete </span></pre><pre class=" CodeMirror-line " role="presentation"><span role="presentation" style="padding-right: 0.1px;">0addb6fece63: Pull complete </span></pre><pre class=" CodeMirror-line " role="presentation"><span role="presentation" style="padding-right: 0.1px;">78e58219b215: Pull complete </span></pre><pre class=" CodeMirror-line " role="presentation"><span role="presentation" style="padding-right: 0.1px;">eb6959a66df2: Pull complete </span></pre><div class="" style="position: relative;"><pre class=" CodeMirror-line " role="presentation"><span role="presentation" style="padding-right: 0.1px;">Digest: sha256:76702ec53c5e7771ba3f2c4f6152c3796c142af2b3cb1a02fce66c697db24f12</span></pre></div><pre class=" CodeMirror-line " role="presentation"><span role="presentation" style="padding-right: 0.1px;">```</span></pre></div></div></div></div></div><div style="position: absolute; height: 0px; width: 1px; border-bottom: 0px solid transparent; top: 225px;"></div><div class="CodeMirror-gutters" style="display: none; height: 225px;"></div></div></div></pre><p> </p><p> </p><p> </p><p> </p><pre spellcheck="false" class="md-fences md-end-block ty-contain-cm modeLoaded" lang=""><div class="CodeMirror cm-s-inner CodeMirror-wrap" lang=""><div style="overflow: hidden; position: relative; width: 3px; height: 0px; top: 0px; left: 7.99479px;"><textarea autocorrect="off" autocapitalize="off" spellcheck="false" tabindex="0" style="position: absolute; bottom: -1em; padding: 0px; width: 1000px; height: 1em; outline: none;"></textarea></div><div class="CodeMirror-scrollbar-filler" cm-not-content="true"></div><div class="CodeMirror-gutter-filler" cm-not-content="true"></div><div class="CodeMirror-scroll" tabindex="-1"><div class="CodeMirror-sizer" style="margin-left: 0px; margin-bottom: 0px; border-right-width: 0px; padding-right: 0px; padding-bottom: 0px;"><div style="position: relative; top: 0px;"><div class="CodeMirror-lines" role="presentation"><div role="presentation" style="position: relative; outline: none;"><div class="CodeMirror-measure"><pre><span>xxxxxxxxxx</span></pre></div><div class="CodeMirror-measure"></div><div style="position: relative; z-index: 1;"></div><div class="CodeMirror-code" role="presentation"><div class="CodeMirror-activeline" style="position: relative;"><div class="CodeMirror-activeline-background CodeMirror-linebackground"></div><div class="CodeMirror-gutter-background CodeMirror-activeline-gutter" style="left: 0px; width: 0px;"></div><pre class=" CodeMirror-line " role="presentation"><span role="presentation" style="padding-right: 0.1px;"><span cm-text=""></span></span></pre></div></div></div></div></div></div><div style="position: absolute; height: 0px; width: 1px; border-bottom: 0px solid transparent; top: 23px;"></div><div class="CodeMirror-gutters" style="display: none; height: 23px;"></div></div></div></pre></div>
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