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src="https://cdn.wpsshop.cn/public/wpsshopindex/js/mid_detail_last.js?v=33890"></script><style type="text/css"></style><script type="text/javascript"></script><div class="interactive_info" id="body-data-0098" attrv="50118"></div><div class="article_box" style="overflow: hidden;"><div class="article_channel"><div class="channel_top_line"><div class="cn_t_l"></div><div class="cn_t_r"></div></div><div class="article_channel_info">当前位置: <a href="/article/list/1">article</a> > 正文 </div></div><div class="article_title"><h1>Pipeline流水线语法解析全集 -- 声明式流水线_pipeline注释</h1></div><div class="article_info"><div class="article_c_info"> 作者：Gausst松鼠会 | 2024-05-31 03:28:34</div><div class="article_click" style="width: 140px;"><p class="operation-b-img operation-b-img-active"><i class="img-up txclick" attc="upclick" attn="0"></i><span class="num"> 赞</span></p><p class="operation-b-img operation-b-img-active"><i class="img-down txclick" attc="downclick" attn="0"></i><span class="num">踩</span></p></div></div><div class="article_intro">pipeline注释</div><div class="article_content article_contentheight"> <link rel="stylesheet" href="https://csdnimg.cn/release/blogv2/dist/mdeditor/css/editerView/kdoc_html_views-1a98987dfd.css"> <link rel="stylesheet" href="https://csdnimg.cn/release/blogv2/dist/mdeditor/css/editerView/ck_htmledit_views-044f2cf1dc.css"> <div id="content_views" class="htmledit_views"> <p>Pipeline<a href="https://so.csdn.net/so/search?q=%E6%B5%81%E6%B0%B4%E7%BA%BF&spm=1001.2101.3001.7020" target="_blank" class="hl hl-1" data-report-click="{"spm":"1001.2101.3001.7020","dest":"https://so.csdn.net/so/search?q=%E6%B5%81%E6%B0%B4%E7%BA%BF&spm=1001.2101.3001.7020","extra":"{\"searchword\":\"流水线\"}"}" data-tit="流水线" data-pretit="流水线">流水线</a>，特别是声明式流水线，在Jenkins中提供了一种简洁、直观的方式来定义和配置持续集成/持续部署（CI/CD）流程。以下是声明式流水线的语法解析全集：</p> <ol><li><strong>基础结构</strong>：</li></ol> <p>声明式流水线的整体结构由<code>pipeline</code>块包裹，它包含了流水线的所有定义。</p> <pre data-index="0" class="set-code-show" name="code"></pre> <p><code>groovy复制代码</code></p> <div class="table-box"><table><tbody><tr><td></td><td><code>pipeline { </code></td></tr><tr><td></td><td><code>// 流水线配置和阶段定义 </code></td></tr><tr><td></td><td><code>}</code></td></tr></tbody></table></div> <ol><li><strong>Agent</strong>：</li></ol> <p><code>agent</code>指令用于指定整个流水线或某个阶段在哪个节点上执行。</p> <pre data-index="1" class="set-code-show" name="code"></pre> <p><code>复制代码</code></p> <div class="table-box"><table><tbody><tr><td></td><td><code>* `any`：可以在任何可用的代理上执行。 </code></td></tr><tr><td></td><td><code>* `label`：在具有指定标签的代理上执行。 </code></td></tr><tr><td></td><td><code>* `none`：流水线不会在任何代理上执行。 </code></td></tr><tr><td></td><td><code>* 自定义工作区（可选）： </code></td></tr><tr><td></td><td></td></tr><tr><td></td><td></td></tr><tr><td></td><td><code>```groovy </code></td></tr><tr><td></td><td><code>agent { </code></td></tr><tr><td></td><td><code>label 'my-label' // 指定标签 </code></td></tr><tr><td></td><td><code>// 或者 </code></td></tr><tr><td></td><td><code>node { </code></td></tr><tr><td></td><td><code>label 'my-label' </code></td></tr><tr><td></td><td><code>customWorkspace '/some/other/path' // 自定义工作区 </code></td></tr><tr><td></td><td><code>} </code></td></tr><tr><td></td><td><code>} </code></td></tr><tr><td></td><td><code>```</code></td></tr></tbody></table></div> <p>3. <strong>Directives</strong>：</p> <p>声明式流水线中有一些指令，如<code>environment</code>、<code>tools</code>、<code>options</code>、<code>triggers</code>等，用于配置环境变量、指定工具、设置流水线选项和触发器。<br> 4. <strong>Stages</strong>：</p> <p><code>stages</code>块包含了流水线的所有阶段（stage）。每个阶段可以有一个或多个步骤（steps）。</p> <pre data-index="2" class="set-code-show" name="code"></pre> <p><code>groovy复制代码</code></p> <div class="table-box"><table><tbody><tr><td></td><td><code>stages { </code></td></tr><tr><td></td><td><code>stage('Example') { </code></td></tr><tr><td></td><td><code>steps { </code></td></tr><tr><td></td><td><code>// 步骤定义 </code></td></tr><tr><td></td><td><code>} </code></td></tr><tr><td></td><td><code>} </code></td></tr><tr><td></td><td><code>}</code></td></tr></tbody></table></div> <ol><li><strong>Steps</strong>：</li></ol> <p>在<code>steps</code>块中，你可以定义要执行的具体步骤。这些步骤可以是shell命令、脚本执行、构建、测试等。</p> <pre data-index="3" class="set-code-show" name="code"></pre> <p><code>复制代码</code></p> <div class="table-box"><table><tbody><tr><td></td><td><code>* 示例：执行shell命令 </code></td></tr><tr><td></td><td></td></tr><tr><td></td><td></td></tr><tr><td></td><td><code>```groovy </code></td></tr><tr><td></td><td><code>steps { </code></td></tr><tr><td></td><td><code>sh 'echo Hello, World!' </code></td></tr><tr><td></td><td><code>} </code></td></tr><tr><td></td><td><code>``` </code></td></tr><tr><td></td><td><code>* 示例：使用Jenkins插件提供的步骤（如Maven构建） </code></td></tr><tr><td></td><td></td></tr><tr><td></td><td></td></tr><tr><td></td><td><code>```groovy </code></td></tr><tr><td></td><td><code>steps { </code></td></tr><tr><td></td><td><code>maven('clean package') </code></td></tr><tr><td></td><td><code>} </code></td></tr><tr><td></td><td><code>```</code></td></tr></tbody></table></div> <p>6. <strong>Post-actions</strong>：</p> <p>在<code>post</code>块中，你可以定义流水线或某个阶段执行完成后的操作。例如，你可以根据构建的结果（成功、失败、不稳定、中止）执行不同的步骤。<br> 7. <strong>Parameters</strong>：</p> <p>声明式流水线还支持参数化，允许你在流水线运行时指定参数值。这些参数可以在流水线的各个阶段和步骤中使用。</p> <pre data-index="4" class="set-code-show" name="code"></pre> <p><code>groovy复制代码</code></p> <div class="table-box"><table><tbody><tr><td></td><td><code>parameters { </code></td></tr><tr><td></td><td><code>string(name: 'DEPLOY_ENV', defaultValue: 'staging', description: 'Target deployment environment') </code></td></tr><tr><td></td><td><code>}</code></td></tr></tbody></table></div> <ol><li><strong>Environment Variables</strong>：</li></ol> <p>在流水线的<code>environment</code>指令中，你可以定义全局环境变量，这些变量可以在流水线的各个阶段和步骤中使用。<br> 9. <strong>Scripted Pipeline vs Declarative Pipeline</strong>：</p> <p>除了声明式流水线外，<a href="https://so.csdn.net/so/search?q=Jenkins&spm=1001.2101.3001.7020" target="_blank" class="hl hl-1" data-report-view="{"spm":"1001.2101.3001.7020","dest":"https://so.csdn.net/so/search?q=Jenkins&spm=1001.2101.3001.7020","extra":"{\"searchword\":\"Jenkins\"}"}" data-report-click="{"spm":"1001.2101.3001.7020","dest":"https://so.csdn.net/so/search?q=Jenkins&spm=1001.2101.3001.7020","extra":"{\"searchword\":\"Jenkins\"}"}" data-tit="Jenkins" data-pretit="jenkins">Jenkins</a>还提供了脚本式流水线（Scripted Pipeline），它使用Groovy DSL直接编写流水线逻辑。虽然脚本式流水线提供了更高的灵活性和控制力，但声明式流水线通过更简洁、更直观的语法，使得定义和配置CI/CD流程更加容易。<br> 10. <strong>其他特性</strong>：</p> <ul><li>条件判断：使用<code>when</code>指令在特定条件下执行阶段或步骤。</li><li>并行执行：使用<code>parallel</code>指令在多个阶段或步骤之间实现并行执行。</li><li>输入/输出：使用<code>input</code>和<code>output</code>指令在流水线之间传递参数和结果。</li></ul> <p>以上是声明式流水线语法的基本解析。根据你的具体需求，你可以使用这些指令和特性来定义复杂的CI/CD流程。</p> </div><div 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