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& docker-compose cheatsheet & Quick Reference</title>
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<a aria-hidden="true" tabindex="-1" href="#docker-compose-备忘清单"><span class="icon icon-link"></span></a>Docker Compose 备忘清单</h1><div class="wrap-body">
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<p>这是 <a href="https://docs.docker.com/compose/">docker-compose</a> 的快速参考备忘单。你可以在这里找到最常见的 Docker Compose 使用方式。</p>
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</svg></div><div class="menu-modal"><a aria-hidden="true" class="leve2 tocs-link" data-num="2" href="#入门">入门</a><a aria-hidden="true" class="leve3 tocs-link" data-num="3" href="#docker-compose-是什么">Docker Compose 是什么？</a><a aria-hidden="true" class="leve3 tocs-link" data-num="3" href="#基本概念">基本概念</a><a aria-hidden="true" class="leve3 tocs-link" data-num="3" href="#docker-compose-文件结构">Docker-Compose 文件结构</a><a aria-hidden="true" class="leve3 tocs-link" data-num="3" href="#安装">安装</a><a aria-hidden="true" class="leve3 tocs-link" data-num="3" href="#独立安装-compose">独立安装 Compose</a><a aria-hidden="true" class="leve3 tocs-link" data-num="3" href="#更新-compose">更新 Compose</a><a aria-hidden="true" class="leve3 tocs-link" data-num="3" href="#卸载-docker-compose">卸载 Docker Compose</a><a aria-hidden="true" class="leve3 tocs-link" data-num="3" href="#检查-compose-的安装位置">检查 Compose 的安装位置</a><a aria-hidden="true" class="leve3 tocs-link" data-num="3" href="#常用命令">常用命令</a><a aria-hidden="true" class="leve2 tocs-link" data-num="2" href="#docker-compose-配置">Docker Compose 配置</a><a aria-hidden="true" class="leve3 tocs-link" data-num="3" href="#示例配置文件">示例配置文件</a><a aria-hidden="true" class="leve3 tocs-link" data-num="3" href="#使用环境变量">使用环境变量</a><a aria-hidden="true" class="leve4 tocs-link" data-num="4" href="#额外的信息">额外的信息</a></div></div><div class="h1wrap-body"><div class="wrap h2body-exist"><div class="wrap-header h2wrap"><h2 id="入门"><a aria-hidden="true" tabindex="-1" href="#入门"><span class="icon icon-link"></span></a>入门</h2><div class="wrap-body">
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</div></div><div class="h2wrap-body"><div class="wrap h3body-not-exist"><div class="wrap-header h3wrap"><h3 id="docker-compose-是什么"><a aria-hidden="true" tabindex="-1" href="#docker-compose-是什么"><span class="icon icon-link"></span></a>Docker Compose 是什么？</h3><div class="wrap-body">
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<ul>
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<li><code>Docker-compsoe</code> 是一个开源项目，用于定义和运行多容器 <code>Docker</code> 应用程序的工具。由 <code>Docker</code> 社区维护。</li>
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<li>通过一个 <code>YAML</code> 文件来配置应用程序的服务，以便可以使用一个命令启动、停止和重启整个应用程序。</li>
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<li><a href="https://github.com/docker/compose">Docker Compose 开源地址</a></li>
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<li><a href="https://github.com/docker/compose/releases">Docker Compose 发行地址</a> <em>github.com</em></li>
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</ul>
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</div></div></div><div class="wrap h3body-not-exist"><div class="wrap-header h3wrap"><h3 id="基本概念"><a aria-hidden="true" tabindex="-1" href="#基本概念"><span class="icon icon-link"></span></a>基本概念</h3><div class="wrap-body">
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<ul>
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<li><strong>服务 (services):</strong> 一个服务指的是一个容器，即一个应用程序的一个实例。</li>
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<li><strong>容器 (container):</strong> <code>Docker</code> 容器，其中运行着应用程序的一个实例。</li>
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<li><strong>镜像 (image):</strong> <code>Docker</code> 镜像，用于创建容器的模板。</li>
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<li><strong>Docker-Compose 文件：</strong> 一个 <code>YAML</code> 文件，描述了应用程序的各个服务以及它们之间的关系、配置等信息。</li>
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</ul>
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</div></div></div><div class="wrap h3body-not-exist"><div class="wrap-header h3wrap"><h3 id="docker-compose-文件结构"><a aria-hidden="true" tabindex="-1" href="#docker-compose-文件结构"><span class="icon icon-link"></span></a>Docker-Compose 文件结构</h3><div class="wrap-body">
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<ul>
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<li><code>version</code>: <em>Docker-Compose</em> 文件的版本。</li>
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<li><code>services</code>: 定义了各个服务，每个服务都有自己的配置项，如镜像、端口映射、依赖等。</li>
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<li><code>networks</code>: 定义了应用程序使用的网络，可以自定义网络以控制服务之间的通信。</li>
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<li><code>volumes</code>: 定义了应用程序使用的卷，用于持久化数据或与主机共享文件。</li>
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</ul>
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</div></div></div><div class="wrap h3body-not-exist row-span-2"><div class="wrap-header h3wrap"><h3 id="安装"><a aria-hidden="true" tabindex="-1" href="#安装"><span class="icon icon-link"></span></a>安装</h3><div class="wrap-body">
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<!--rehype:wrap-class=row-span-2-->
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<p>对于 Ubuntu 和 Debian，运行：</p>
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<pre class="language-bash"><code class="language-bash code-highlight"><span class="code-line"><span class="token function">sudo</span> <span class="token function">apt-get</span> update
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</span><span class="code-line"><span class="token function">sudo</span> <span class="token function">apt-get</span> <span class="token function">install</span> docker-compose-plugin
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</span></code></pre>
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<p>对于基于 RPM 的发行版，运行：</p>
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<pre class="language-bash"><code class="language-bash code-highlight"><span class="code-line"><span class="token function">sudo</span> yum update
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</span><span class="code-line"><span class="token function">sudo</span> yum <span class="token function">install</span> docker-compose-plugin
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</span></code></pre>
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<p>通过检查版本来验证 Docker Compose 是否正确安装</p>
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<pre class="language-sh"><code class="language-sh code-highlight"><span class="code-line"><span class="token function">docker</span> compose version
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</span><span class="code-line"><span class="token comment"># Docker Compose version v2.17.3</span>
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</span><span class="code-line">
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</span><span class="code-line"><span class="token function">docker</span> <span class="token parameter variable">--version</span>
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</span><span class="code-line"><span class="token comment"># Docker version 23.0.5, build bc4487a</span>
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</span><span class="code-line">
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</span><span class="code-line"><span class="token function">docker</span> version
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</span><span class="code-line"><span class="token comment"># Client: Docker Engine - Community</span>
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</span><span class="code-line"><span class="token comment"># Cloud integration: v1.0.31</span>
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</span><span class="code-line"><span class="token comment"># Version: 23.0.5</span>
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</span><span class="code-line"><span class="token comment"># API version: 1.42</span>
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</span><span class="code-line"><span class="token comment"># <...></span>
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</span></code></pre>
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</div></div></div><div class="wrap h3body-not-exist"><div class="wrap-header h3wrap"><h3 id="独立安装-compose"><a aria-hidden="true" tabindex="-1" href="#独立安装-compose"><span class="icon icon-link"></span></a>独立安装 Compose</h3><div class="wrap-body">
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<pre class="wrap-text"><code class="language-sh code-highlight"><span class="code-line"><span class="token function">curl</span> <span class="token parameter variable">-SL</span> https://github.com/docker/compose/releases/download/v2.27.0/docker-compose-linux-x86_64 <span class="token parameter variable">-o</span> /usr/local/bin/docker-compose
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</span></code></pre>
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<!--rehype:className=wrap-text-->
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<p>如果命令 <code>docker-compose</code> 安装失败，请检查你的路径。你也可以创建一个符号链接，指向 <code>/usr/bin</code> 或路径中的任何其他目录。例如</p>
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<pre class="wrap-text"><code class="language-sh code-highlight"><span class="code-line">$ <span class="token function">sudo</span> <span class="token function">ln</span> <span class="token parameter variable">-s</span> /usr/local/bin/docker-compose /usr/bin/docker-compose
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</span></code></pre>
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<!--rehype:className=wrap-text-->
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</div></div></div><div class="wrap h3body-not-exist"><div class="wrap-header h3wrap"><h3 id="更新-compose"><a aria-hidden="true" tabindex="-1" href="#更新-compose"><span class="icon icon-link"></span></a>更新 Compose</h3><div class="wrap-body">
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<p>对于 Ubuntu 和 Debian，运行：</p>
|
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<pre class="language-sh"><code class="language-sh code-highlight"><span class="code-line"><span class="token function">sudo</span> <span class="token function">apt-get</span> update
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</span><span class="code-line"><span class="token function">sudo</span> <span class="token function">apt-get</span> <span class="token function">install</span> docker-compose-plugin
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</span></code></pre>
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<p>对于基于 RPM 的发行版，运行：</p>
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<pre class="language-sh"><code class="language-sh code-highlight"><span class="code-line"><span class="token function">sudo</span> yum update
|
||
</span><span class="code-line"><span class="token function">sudo</span> yum <span class="token function">install</span> docker-compose-plugin
|
||
</span></code></pre>
|
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</div></div></div><div class="wrap h3body-not-exist col-span-2"><div class="wrap-header h3wrap"><h3 id="卸载-docker-compose"><a aria-hidden="true" tabindex="-1" href="#卸载-docker-compose"><span class="icon icon-link"></span></a>卸载 Docker Compose</h3><div class="wrap-body">
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<!--rehype:wrap-class=col-span-2-->
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<p>Ubuntu, Debian:</p>
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<pre class="language-sh"><code class="language-sh code-highlight"><span class="code-line"><span class="token function">sudo</span> <span class="token function">apt-get</span> remove docker-compose-plugin
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</span></code></pre>
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<p>基于 RPM 的发行版</p>
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<pre class="language-sh"><code class="language-sh code-highlight"><span class="code-line"><span class="token function">sudo</span> yum remove docker-compose-plugin
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</span></code></pre>
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<p>如果您使用curl安装Compose CLI插件，要卸载它，请运行：</p>
|
||
<pre class="language-sh"><code class="language-sh code-highlight"><span class="code-line"><span class="token function">rm</span> <span class="token variable">$DOCKER_CONFIG</span>/cli-plugins/docker-compose
|
||
</span></code></pre>
|
||
<p>为所有用户删除，或者，如果您已为所有用户安装 Compose，请运行：</p>
|
||
<pre class="language-sh"><code class="language-sh code-highlight"><span class="code-line"><span class="token function">rm</span> /usr/local/lib/docker/cli-plugins/docker-compose
|
||
</span></code></pre>
|
||
</div></div></div><div class="wrap h3body-not-exist col-span-3"><div class="wrap-header h3wrap"><h3 id="检查-compose-的安装位置"><a aria-hidden="true" tabindex="-1" href="#检查-compose-的安装位置"><span class="icon icon-link"></span></a>检查 Compose 的安装位置</h3><div class="wrap-body">
|
||
<!--rehype:wrap-class=col-span-3-->
|
||
<pre class="language-sh"><code class="language-sh code-highlight"><span class="code-line"><span class="token function">docker</span> info <span class="token parameter variable">--format</span> <span class="token string">'{{range .ClientInfo.Plugins}}{{if eq .Name "compose"}}{{.Path}}{{end}}{{end}}'</span>
|
||
</span></code></pre>
|
||
</div></div></div><div class="wrap h3body-not-exist col-span-2"><div class="wrap-header h3wrap"><h3 id="常用命令"><a aria-hidden="true" tabindex="-1" href="#常用命令"><span class="icon icon-link"></span></a>常用命令</h3><div class="wrap-body">
|
||
<!--rehype:wrap-class=col-span-2-->
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|
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|
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|
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|
||
|
||
<table class="left-align"><thead><tr><th>docker compose命令</th><th>说明</th><th>常见参数说明</th></tr></thead><tbody><tr><td><code>docker compose up</code></td><td>启动容器</td><td><code>-d</code> 后台运行容器</td></tr><tr><td><code>docker compose down</code></td><td>停止容器</td><td><code>-v</code> 删除容器和卷</td></tr><tr><td><code>docker compose ps</code></td><td>查看容器状态</td><td></td></tr><tr><td><code>docker compose logs</code></td><td>查看容器日志</td><td><code>-f</code> 跟随日志输出</td></tr><tr><td><code>docker compose exec</code></td><td>进入容器</td><td><code>-it</code> 启动交互式终端</td></tr><tr><td><code>docker compose build</code></td><td>构建镜像</td><td></td></tr><tr><td><code>docker compose rm</code></td><td>删除容器</td><td></td></tr><tr><td><code>docker compose stop</code></td><td>停止容器</td><td></td></tr><tr><td><code>docker compose start</code></td><td>启动容器</td><td></td></tr><tr><td><code>docker compose restart</code></td><td>重启容器</td><td></td></tr><tr><td><code>docker compose pull</code></td><td>拉取镜像</td><td></td></tr><tr><td><code>docker compose run</code></td><td>运行一个临时容器</td><td></td></tr><tr><td><code>docker compose config</code></td><td>显示配置信息</td><td></td></tr><tr><td><code>docker compose images</code></td><td>列出镜像</td><td></td></tr><tr><td><code>docker compose push</code></td><td>推送镜像</td><td></td></tr><tr><td><code>docker compose version</code></td><td>查看版本信息</td><td></td></tr></tbody></table>
|
||
<!--rehype:className=left-align-->
|
||
</div></div></div></div></div><div class="wrap h2body-exist"><div class="wrap-header h2wrap"><h2 id="docker-compose-配置"><a aria-hidden="true" tabindex="-1" href="#docker-compose-配置"><span class="icon icon-link"></span></a>Docker Compose 配置</h2><div class="wrap-body">
|
||
</div></div><div class="h2wrap-body"><div class="wrap h3body-not-exist col-span-2"><div class="wrap-header h3wrap"><h3 id="示例配置文件"><a aria-hidden="true" tabindex="-1" href="#示例配置文件"><span class="icon icon-link"></span></a>示例配置文件</h3><div class="wrap-body">
|
||
<!--rehype:wrap-class=col-span-2-->
|
||
<p><code>docker-compose</code> 的配置文件是一个 <code>YAML</code> 文件，用于定义和运行多容器 Docker 应用程序。通常命名为 <code>docker-compose.yml</code>，它使用单一的 YAML 文件来定义多个容器的集合，以及它们之间的依赖关系和服务。以下是一份 <code>docker-compose.yml</code> 文件的配置模板，包含了常用配置项和解释：</p>
|
||
<pre class="language-yml"><code class="language-yml code-highlight"><span class="code-line"><span class="token key atrule">version</span><span class="token punctuation">:</span> <span class="token string">'3'</span> <span class="token comment"># 指定使用的 Docker Compose 文件格式版本，目前推荐使用 3.x 或更高</span>
|
||
</span><span class="code-line">
|
||
</span><span class="code-line"><span class="token key atrule">services</span><span class="token punctuation">:</span> <span class="token comment"># 定义一个或多个服务</span>
|
||
</span><span class="code-line"> <span class="token key atrule">service1</span><span class="token punctuation">:</span> <span class="token comment"># 服务名称</span>
|
||
</span><span class="code-line"> <span class="token key atrule">image</span><span class="token punctuation">:</span> nginx<span class="token punctuation">:</span>latest <span class="token comment"># 使用的 Docker 镜像，这里是 Nginx 的最新版本</span>
|
||
</span><span class="code-line">
|
||
</span><span class="code-line"> <span class="token comment"># 或者使用构建指令来从 Dockerfile 构建镜像</span>
|
||
</span><span class="code-line"> <span class="token key atrule">build</span><span class="token punctuation">:</span>
|
||
</span><span class="code-line"> <span class="token key atrule">context</span><span class="token punctuation">:</span> ./path/to/Dockerfile <span class="token comment"># Dockerfile 所在的目录</span>
|
||
</span><span class="code-line"> <span class="token key atrule">dockerfile</span><span class="token punctuation">:</span> Dockerfile<span class="token punctuation">-</span>alternative <span class="token comment"># 可选的 Dockerfile 名称，默认是 Dockerfile</span>
|
||
</span><span class="code-line">
|
||
</span><span class="code-line"> <span class="token comment"># 容器启动时执行的命令，覆盖默认的命令</span>
|
||
</span><span class="code-line"> <span class="token key atrule">command</span><span class="token punctuation">:</span>
|
||
</span><span class="code-line"> <span class="token punctuation">-</span> <span class="token string">"nginx"</span>
|
||
</span><span class="code-line"> <span class="token punctuation">-</span> <span class="token string">"-g"</span>
|
||
</span><span class="code-line"> <span class="token punctuation">-</span> <span class="token string">"daemon off;"</span> <span class="token comment"># 以数组形式指定，防止 shell 解析</span>
|
||
</span><span class="code-line">
|
||
</span><span class="code-line"> <span class="token key atrule">ports</span><span class="token punctuation">:</span> <span class="token comment"># 容器端口与主机端口映射</span>
|
||
</span><span class="code-line"> <span class="token punctuation">-</span> <span class="token string">"80:80"</span> <span class="token comment"># 主机 80 端口映射到容器的 80 端口</span>
|
||
</span><span class="code-line">
|
||
</span><span class="code-line"> <span class="token key atrule">volumes</span><span class="token punctuation">:</span> <span class="token comment"># 数据卷挂载</span>
|
||
</span><span class="code-line"> <span class="token punctuation">-</span> ./nginx.conf<span class="token punctuation">:</span>/etc/nginx/nginx.conf<span class="token punctuation">:</span>ro <span class="token comment"># 将主机上的 nginx.conf 挂载到容器的 /etc/nginx/nginx.conf，只读</span>
|
||
</span><span class="code-line"> <span class="token punctuation">-</span> ./logs<span class="token punctuation">:</span>/var/log/nginx <span class="token comment"># 将 logs 目录挂载到容器的 /var/log/nginx</span>
|
||
</span><span class="code-line">
|
||
</span><span class="code-line"> <span class="token key atrule">environment</span><span class="token punctuation">:</span> <span class="token comment"># 设置环境变量</span>
|
||
</span><span class="code-line"> <span class="token punctuation">-</span> MYSQL_HOST=database <span class="token comment"># 可以引用其他服务，这里假设有一个名为 database 的服务</span>
|
||
</span><span class="code-line"> <span class="token punctuation">-</span> MYSQL_PORT=3306
|
||
</span><span class="code-line">
|
||
</span><span class="code-line"> <span class="token key atrule">depends_on</span><span class="token punctuation">:</span> <span class="token comment"># 服务启动顺序，这里表明 service1 依赖于 database 服务</span>
|
||
</span><span class="code-line"> <span class="token punctuation">-</span> database
|
||
</span><span class="code-line">
|
||
</span><span class="code-line"> <span class="token key atrule">networks</span><span class="token punctuation">:</span> <span class="token comment"># 定义网络</span>
|
||
</span><span class="code-line"> <span class="token punctuation">-</span> my_network <span class="token comment"># 参与名为 my_network 的网络</span>
|
||
</span><span class="code-line">
|
||
</span><span class="code-line"> <span class="token key atrule">service2</span><span class="token punctuation">:</span> <span class="token comment"># 另一个服务示例</span>
|
||
</span><span class="code-line"> <span class="token comment"># ... 类似地定义其他服务</span>
|
||
</span><span class="code-line">
|
||
</span><span class="code-line"><span class="token key atrule">networks</span><span class="token punctuation">:</span> <span class="token comment"># 定义网络</span>
|
||
</span><span class="code-line"> <span class="token key atrule">my_network</span><span class="token punctuation">:</span> <span class="token comment"># 网络名称</span>
|
||
</span><span class="code-line"> <span class="token key atrule">driver</span><span class="token punctuation">:</span> bridge <span class="token comment"># 网络驱动，通常是 bridge 模式</span>
|
||
</span><span class="code-line">
|
||
</span><span class="code-line"><span class="token key atrule">volumes</span><span class="token punctuation">:</span> <span class="token comment"># 定义数据卷</span>
|
||
</span><span class="code-line"> <span class="token key atrule">nginx_logs</span><span class="token punctuation">:</span> <span class="token comment"># 卷名称</span>
|
||
</span><span class="code-line">
|
||
</span></code></pre>
|
||
<p>备忘录事项</p>
|
||
<ul>
|
||
<li>使用 Docker-Compose 可以简化多容器应用程序的部署和管理，但需要注意容器之间的依赖关系和通信。</li>
|
||
<li>配置文件中的缩进必须使用空格，不能使用制表符。</li>
|
||
<li>可以使用环境变量来动态设置配置项，如数据库密码。</li>
|
||
<li>当你修改了 <code>docker-compose.yml</code> 文件后，需要重新运行 <code>docker-compose up</code> 来使改动生效。</li>
|
||
<li>使用 <code>docker-compose build</code> 仅重建镜像，而不启动容器。</li>
|
||
<li>使用 <code>docker-compose restart</code> 重启容器。</li>
|
||
<li>记得清理不再需要的容器和镜像，以避免磁盘空间不足。</li>
|
||
</ul>
|
||
</div></div></div><div class="wrap h3body-exist"><div class="wrap-header h3wrap"><h3 id="使用环境变量"><a aria-hidden="true" tabindex="-1" href="#使用环境变量"><span class="icon icon-link"></span></a>使用环境变量</h3><div class="wrap-body">
|
||
<p>与 <code>docker run -e VARIABLE=VALUE ...</code> 相同</p>
|
||
<pre class="language-yml"><code class="language-yml code-highlight"><span class="code-line"><span class="token key atrule">web</span><span class="token punctuation">:</span>
|
||
</span><span class="code-line"> <span class="token key atrule">environment</span><span class="token punctuation">:</span>
|
||
</span><span class="code-line"> <span class="token punctuation">-</span> DEBUG=1
|
||
</span></code></pre>
|
||
<p>您可以选择不设置值并将环境变量从 shell 直接传递到容器。它的工作方式与 <code>docker run -e VARIABLE ...</code> 相同：</p>
|
||
<pre class="language-yml"><code class="language-yml code-highlight"><span class="code-line"><span class="token key atrule">web</span><span class="token punctuation">:</span>
|
||
</span><span class="code-line"> <span class="token key atrule">environment</span><span class="token punctuation">:</span>
|
||
</span><span class="code-line"> <span class="token punctuation">-</span> DEBUG
|
||
</span><span class="code-line"><span class="token key atrule">web</span><span class="token punctuation">:</span>
|
||
</span><span class="code-line"> <span class="token key atrule">environment</span><span class="token punctuation">:</span>
|
||
</span><span class="code-line"> <span class="token punctuation">-</span> DEBUG=$<span class="token punctuation">{</span>DEBUG<span class="token punctuation">}</span>
|
||
</span></code></pre>
|
||
<p><code>env_file</code> 属性允许您在 Compose 应用程序中使用多个 <code>.env</code> 文件。
|
||
它的工作方式与 <code>docker run --env-file=FILE ...</code> 相同。</p>
|
||
<pre class="language-yml"><code class="language-yml code-highlight"><span class="code-line"><span class="token key atrule">web</span><span class="token punctuation">:</span>
|
||
</span><span class="code-line"> <span class="token key atrule">env_file</span><span class="token punctuation">:</span>
|
||
</span><span class="code-line"> <span class="token punctuation">-</span> web<span class="token punctuation">-</span>variables.env
|
||
</span></code></pre>
|
||
<h4 id="额外的信息"><a aria-hidden="true" tabindex="-1" href="#额外的信息"><span class="icon icon-link"></span></a>额外的信息</h4>
|
||
<pre class="language-yml"><code class="language-yml code-highlight"><span class="code-line"><span class="token key atrule">env_file</span><span class="token punctuation">:</span>
|
||
</span><span class="code-line"> <span class="token punctuation">-</span> <span class="token key atrule">path</span><span class="token punctuation">:</span> ./default.env
|
||
</span><span class="code-line"> <span class="token key atrule">required</span><span class="token punctuation">:</span> <span class="token boolean important">true</span> <span class="token comment"># default</span>
|
||
</span><span class="code-line"> <span class="token punctuation">-</span> <span class="token key atrule">path</span><span class="token punctuation">:</span> ./override.env
|
||
</span><span class="code-line"> <span class="token key atrule">required</span><span class="token punctuation">:</span> <span class="token boolean important">false</span>
|
||
</span></code></pre>
|
||
<ul>
|
||
<li>如果指定了多个文件，则它们将按顺序进行评估，可以覆盖先前文件中设置的值。</li>
|
||
<li>在 <code>.env</code> 文件中声明的环境变量不能在 Compose 文件中单独再次引用。</li>
|
||
<li>如果同时使用 <code>env_file</code> 和 <code>environment</code> 属性，则由 <code>environment</code> 设置的环境变量优先级更高。</li>
|
||
<li>在 <code>env_file</code> 属性中指定的 <code>.env</code> 文件的路径是相对于 compose.yml 文件的位置的。</li>
|
||
<li><code>.env</code> 文件中的值可以通过使用 <code>docker compose run -e</code> 命令行来从命令行覆盖。</li>
|
||
<li>如果使用 <code>--env-file</code> 替换了另一个 <code>.env</code>，则您的 <code>.env</code> 文件可以被另一个 <code>.env</code> 文件覆盖。</li>
|
||
<li>从 Docker Compose 版本 2.24.0 开始，您可以通过使用 <code>required</code> 字段将 <code>.env</code> 文件设置为可选项。当 <code>required</code> 设置为 <code>false</code> 且 <code>.env</code> 文件丢失时，Compose 将静默忽略该条目</li>
|
||
</ul>
|
||
</div></div></div></div></div></div><script src="https://giscus.app/client.js" data-repo="jaywcjlove/reference" data-repo-id="R_kgDOID2-Mw" data-category="Q&A" data-category-id="DIC_kwDOID2-M84CS5wo" data-mapping="pathname" data-strict="0" data-reactions-enabled="1" data-emit-metadata="0" data-input-position="bottom" data-theme="dark" data-lang="zh-CN" crossorigin="anonymous" async></script><div class="giscus"></div></div><footer class="footer-wrap"><footer class="max-container">© 2022 <a href="https://wangchujiang.com/#/app" target="_blank">Kenny Wang</a>.</footer></footer><script src="../data.js?v=1.5.3" defer></script><script src="../js/fuse.min.js?v=1.5.3" defer></script><script src="../js/main.js?v=1.5.3" defer></script><div id="mysearch"><div class="mysearch-box"><div class="mysearch-input"><div><svg xmlns="http://www.w3.org/2000/svg" height="1em" width="1em" viewBox="0 0 18 18">
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