GitHub Action前置作业成功但zip_files作业被跳过问题排查

• 没有显式配置if规则的GitHub Action作业，默认携带隐式触发条件if: success()，要求所有needs声明的上游作业最终状态为success时才会执行。
• 你在generate_build_number作业的if条件中使用了always()，即使该作业内部所有步骤全部执行成功，作业最终状态会被标记为neutral（中立状态）而非success，不满足下游zip_files的默认触发要求，因此被跳过。
• 额外逻辑缺陷：当前generate_build_number中判断上游aws/azure/gcp作业状态的写法不符合预期，contains(join(needs.*.result, ','), 'success')只要三个上游作业中任意一个成功，条件就会成立，无法实现「三个上游全部成功才执行当前作业」的效果。

根据实际业务需求选择对应配置即可：

方案1：不需要上游失败时执行generate_build_number #

直接移除generate_build_number中导致状态异常的always()，同时修正上游状态判断逻辑，修复后generate_build_number执行成功时状态为success，下游zip_files无需额外配置即可正常触发：

generate_build_number:
    needs: [ aws, azure, gcp ]
    name: Generate Build Number
    runs-on: ubuntu-latest
    if: ${{ !contains(join(needs.*.result, ','), 'failure') && !contains(join(needs.*.result, ','), 'cancelled') }}
    outputs:
      build_number: ${{ steps.buildnumber.outputs.build_number }}
    steps:
    - name: Generate build number
      id: buildnumber
      uses: einaregilsson/build-number@v3 
      with:
        token: ${{secrets.github_token}}

  zip_files:
    needs: generate_build_number
    name: Generate Zip File
    runs-on: ubuntu-latest
    steps:
      - uses: actions/checkout@v2
      - run: echo ${{needs.generate_build_number.outputs.build_number}} > world.txt
      - uses: montudor/action-zip@v1
        with:
          args: zip -qq -r terraform-latest.zip aws azure gcp world.txt
      - uses: actions/upload-artifact@v1
        with:
          name: terraform-latest
          path: ${{ github.workspace }}/terraform-latest.zip

方案2：需要保留generate_build_number中的always() #

如果业务要求generate_build_number无论上游作业成功失败都要执行（比如做统一的状态统计、收尾操作），就给zip_files添加显式触发条件，明确判断依赖的generate_build_number执行成功后再运行，不受默认规则和上游中立状态影响：

zip_files:
    needs: generate_build_number
    name: Generate Zip File
    runs-on: ubuntu-latest
    if: ${{ needs.generate_build_number.result == 'success' }}
    steps:
      - uses: actions/checkout@v2
      - run: echo ${{needs.generate_build_number.outputs.build_number}} > world.txt
      - uses: montudor/action-zip@v1
        with:
          args: zip -qq -r terraform-latest.zip aws azure gcp world.txt
      - uses: actions/upload-artifact@v1
        with:
          name: terraform-latest
          path: ${{ github.workspace }}/terraform-latest.zip

内容的提问来源于stack exchange，提问作者Alan Chen