Azure Function中通过GitHub Actions部署Python版Playwright失败求助

• 先搞定虚拟环境里的Playwright安装
  既然用了Linux虚拟环境，必须先激活再执行安装命令，GitHub Actions里得把步骤写死：

  # 假设虚拟环境是.venv，根据你的实际路径调整
  source .venv/bin/activate
  pip install -r requirements.txt
  # 安装Chromium浏览器和系统依赖，Linux下必须装系统依赖
  .venv/bin/python -m playwright install chromium
  .venv/bin/python -m playwright install-deps chromium
  

  直接用虚拟环境里的Python来执行playwright命令，避免PATH没配置导致命令找不到的问题。

• 调整GitHub Actions工作流，确保浏览器文件被打包部署
  Azure Function默认不会自动包含Playwright下载的浏览器二进制文件，得手动把这些文件加到部署包里，或者通过环境变量指定路径：
  示例工作流片段：

  jobs:
    build-and-deploy:
      runs-on: ubuntu-latest
      steps:
        - uses: actions/checkout@v4
        
        - name: Set up Python
          uses: actions/setup-python@v5
          with:
            python-version: '3.11' # 匹配你的Azure Function运行时版本
            
        - name: Install dependencies
          run: |
            python -m venv .venv
            source .venv/bin/activate
            pip install --upgrade pip
            pip install -r requirements.txt
            .venv/bin/python -m playwright install chromium
            .venv/bin/python -m playwright install-deps chromium
            
        - name: Copy browser files to deployment root
          run: |
            # 把浏览器目录复制到函数根目录，确保部署时能带上
            cp -r .venv/lib/python3.11/site-packages/playwright/driver/browsers ./
            
        - name: Deploy to Azure Functions
          uses: Azure/functions-action@v4
          with:
            app-name: your-function-app-name
            slot-name: production
            package: .
            publish-profile: ${{ secrets.AZURE_FUNCTIONAPP_PUBLISH_PROFILE }}
  

  同时在Azure Function的应用设置里加个环境变量PLAYWRIGHT_BROWSERS_PATH=0，让Playwright用相对路径找浏览器。

• 检查requirements.txt
  确保里面明确写了playwright，最好指定稳定版本，比如playwright==1.40.0，避免版本兼容坑。

• 部署后验证
  部署完去Azure门户的函数控制台跑个测试命令，确认浏览器能启动：

  cd site/wwwroot
  source .python_packages/bin/activate
  python -c "from playwright.sync_api import sync_playwright; with sync_playwright() as p: browser = p.chromium.launch(headless=True); print('Browser started!'); browser.close()"
  

  如果能输出Browser started!，说明安装成功了。

内容的提问来源于stack exchange，提问作者steambun