使用GitHub Actions部署Flask应用至Cloud Foundry遇文件缺失错误求助

错误原因 #

你遇到的错误Can't find 'action.yml', 'action.yaml' or 'Dockerfile' for action for action 'ibpgithub/testserver123@main'，核心原因是：

• 部署步骤中指定的ibpgithub/testserver123@main不是合法的GitHub Action。GitHub Actions要求作为Action的仓库必须在根目录包含action.yml/action.yaml（定义Action元数据）或Dockerfile（容器化Action），而你的这个仓库缺少这些必需文件，导致Action无法被加载执行。

另外，你的main.yml还有两处配置错误：

• actions/setup-python步骤中错误添加了fetch-depth、repository、path参数，这些是actions/checkout的参数，不属于setup-python，会导致无效配置。
• checkout步骤没有指定目标仓库和路径，后续依赖安装可能找不到文件。

修正方案 #

方案1：直接用Run步骤部署（推荐，无需额外Action仓库） #

放弃使用自定义Action，直接在GitHub Actions中安装CF CLI并执行部署命令，修改后的main.yml如下：

name: CF_CLI_Action_testserver123
env:
  PYTHON_VERSION: '3.8'

on:
  push:
    branches: ['main']

jobs:
  build:
    runs-on: ubuntu-latest

    steps:
      - name: Checkout code
        uses: actions/checkout@v3
        with:
          fetch-depth: 0
          repository: my-repo/testserver123
          path: testserver123

      - name: Set up Python version
        uses: actions/setup-python@v3.0.0
        with:
          python-version: ${{ env.PYTHON_VERSION }}
          cache: 'pip'

      - name: Create and start virtual environment
        run: |
          cd testserver123
          python -m venv venv
          source venv/bin/activate

      - name: Install dependencies
        run: |
          cd testserver123
          pip install -r requirements.txt

      - name: Deploy to Cloud Foundry
        run: |
          cd testserver123
          # 安装Cloud Foundry CLI
          wget -q -O cf-cli.deb https://packages.cloudfoundry.org/stable?release=debian64&source=github
          sudo dpkg -i cf-cli.deb
          # 登录并配置CF目标
          cf api ${{ secrets.CF_API }}
          cf auth ${{ secrets.CF_USERNAME }} ${{ secrets.CF_PASSWORD }}
          cf target -o ${{ secrets.CF_ORG }} -s dev
          # 推送应用
          cf push mytestapp_123

方案2：将自定义仓库转为合法GitHub Action #

如果你坚持要使用ibpgithub/testserver123@main作为Action，需要在该仓库的main分支根目录创建action.yml文件，示例内容如下：

name: 'Cloud Foundry Deploy'
description: 'Deploy app to Cloud Foundry'
inputs:
  cf_api:
    description: 'Cloud Foundry API endpoint'
    required: true
  cf_username:
    description: 'CF username'
    required: true
  cf_password:
    description: 'CF password'
    required: true
  cf_org:
    description: 'CF organization'
    required: true
  cf_space:
    description: 'CF space'
    required: true
  command:
    description: 'CF command to run'
    required: true

runs:
  using: 'composite'
  steps:
    - name: Install CF CLI
      run: |
        wget -q -O cf-cli.deb https://packages.cloudfoundry.org/stable?release=debian64&source=github
        sudo dpkg -i cf-cli.deb
      shell: bash
    - name: Execute CF command
      run: |
        cf api ${{ inputs.cf_api }}
        cf auth ${{ inputs.cf_username }} ${{ inputs.cf_password }}
        cf target -o ${{ inputs.cf_org }} -s ${{ inputs.cf_space }}
        cf ${{ inputs.command }}
      shell: bash

创建好action.yml并推送到ibpgithub/testserver123仓库后，再修正原main.yml中的setup-python参数错误即可正常使用。

内容的提问来源于stack exchange，提问作者Graphiomaniac