Concourse流水线报错：如何让pr_approver在ci_concourse_test_pr成功后运行？

我正在搭建由Pull Request触发的Concourse流水线，流程是PR触发后运行测试，测试成功后执行脚本批准该PR。但用fly命令设置流水线时遇到错误：

invalid jobs: jobs.pr_approver.plan.do[0].get(pr_approver).passed: job 'ci_concourse_test_pr' does not interact with resource 'pr_approver'

当前流水线配置如下：

---

resource_types:
  - name: pull-request
    type: docker-image
    source:
      repository: teliaoss/github-pr-resource

resources:
  - name: ci_concourse_test
    type: pull-request
    check_every: 168h
    webhook_token: {SECRET}
    source:
      repository: {GITHUB_REPO}
      access_token: {SECRET}
      v3_endpoint: https://api.github.com/
      v4_endpoint: https://api.github.com/graphql

  - name: ci_concourse_test_main
    type: git
    source:
      branch: main
      uri: {GITHUB_REPO}
      private_key: {SECRET}

  - name: pr_approver
    type: git
    source:
      branch: main
      uri: {GITHUB_REPO}
      private_key: {SECRET}


jobs:
  - name: ci_concourse_test_pr
    plan:
      - get: ci_concourse_test
        trigger: true
      - put: ci_concourse_test
        params:
          path: ci_concourse_test
          status: pending
      - task: sample-test
        config:
          platform: linux
          image_resource:
            type: docker-image
            source:
              repository: {DOCKER_REPO}
              tag: latest
          inputs:
            - name: ci_concourse_test
          run:
            path: python3
            args: [ "ci_concourse_test/ci/test.py" ]
        on_success:
          put: ci_concourse_test
          params:
            path: ci_concourse_test
            status: success
         
          
          on_failure:
            put: ci_concourse_test
            params:
              path: ci_concourse_test
              status: failure

# Attempting to approve the PR
  - name: pr_approver
      plan:
        - get: pr_approver
        passed: [ci_concourse_test_pr]
        trigger: true
        - task: pr_approver
          config:
            platform: linux
            image_resource:
              type: docker-image
              source:
                repository: {GITHUB_REPO}
                tag: latest
            inputs:
              - name: pr_approver
            run:
              path: python3
              args: [ "github_interface/test.py" ]

错误根源是：pr_approver任务里用passed: [ci_concourse_test_pr]声明依赖，但ci_concourse_test_pr任务从未使用过pr_approver这个资源，Concourse不允许这种无关联的跨任务依赖。此外原配置还有缩进错误、资源冗余的问题，直接修改如下：

修改后的完整配置 #

---

resource_types:
  - name: pull-request
    type: docker-image
    source:
      repository: teliaoss/github-pr-resource

resources:
  - name: ci_concourse_test
    type: pull-request
    check_every: 168h
    webhook_token: {SECRET}
    source:
      repository: {GITHUB_REPO}
      access_token: {SECRET}
      v3_endpoint: https://api.github.com/
      v4_endpoint: https://api.github.com/graphql

  - name: ci_concourse_test_main
    type: git
    source:
      branch: main
      uri: {GITHUB_REPO}
      private_key: {SECRET}


jobs:
  - name: ci_concourse_test_pr
    plan:
      - get: ci_concourse_test
        trigger: true
      - put: ci_concourse_test
        params:
          path: ci_concourse_test
          status: pending
      - task: sample-test
        config:
          platform: linux
          image_resource:
            type: docker-image
            source:
              repository: {DOCKER_REPO}
              tag: latest
          inputs:
            - name: ci_concourse_test
          run:
            path: python3
            args: [ "ci_concourse_test/ci/test.py" ]
        on_success:
          put: ci_concourse_test
          params:
            path: ci_concourse_test
            status: success
        on_failure:
          put: ci_concourse_test
          params:
            path: ci_concourse_test
            status: failure

# PR批准任务
  - name: pr_approver
    plan:
      - get: ci_concourse_test
        passed: [ci_concourse_test_pr]
        trigger: true
      - task: pr_approver
        config:
          platform: linux
          image_resource:
            type: docker-image
            source:
              repository: {DOCKER_REPO} # 需使用包含Python、GitHub依赖的镜像，而非代码仓库
              tag: latest
          inputs:
            - name: ci_concourse_test
          run:
            path: python3
            args: [ "ci_concourse_test/github_interface/test.py" ] # 路径对应PR内脚本位置

关键修改点 #

1. 删除冗余资源：去掉没用的pr_approver git资源，直接复用触发流水线的ci_concourse_test（pull-request类型资源），它包含PR的完整信息，足以用于批准操作
2. 修正依赖规则：pr_approver任务拉取ci_concourse_test并指定passed: [ci_concourse_test_pr]，此时前序任务确实使用过该资源，符合Concourse的依赖逻辑
3. 修复YAML缩进：确保passed、trigger和get处于同级缩进，避免语法错误
4. 修正镜像与路径：原配置里用代码仓库作为任务镜像的错误，改为使用包含运行环境的Docker镜像，同时调整脚本路径对应PR内的文件位置

内容的提问来源于stack exchange，提问作者xalexander