如何将powershell命令的输出用作Azure管道中的参数？

Question

我有一个PowerShell脚本任务，该任务从git存储库中的文件夹获取某些文件的名称，并将其放入变量中。我想在参数中使用这些文件名，并在另一个任务（任务：HelmDeploy @ 0）中使用“每个”条件，以便每次使用文件名之一作为valueFile变量运行该任务。

这是我尝试过的方法，但是它给出了错误Template-Yaml/deploy-jobs.yaml@pipelinetemplates期望的序列或映射。 $ {{parameters.files}}] >>行中的实际值'$ [dependencies.A.outputs ['fileoutput.valuefiles']]'

deploy-jobs.yaml

   parameters:
     files: []

   jobs:
     - job: Deploy
       pool:
         vmImage: 'ubuntu-latest'
       variables:
         filenames: ${{ parameters.files }}
       steps:
       - task: HelmInstaller@1
         displayName: 'Installing Helm'
         inputs:
           helmVersionToInstall: '2.15.1'

       - task: HelmDeploy@0
         displayName: 'Initializing Helm'
         inputs:
           connectionType: 'Azure Resource Manager'
           azureSubscription: $(azureSubscription)
           azureResourceGroup: $(azureResourceGroup)
           kubernetesCluster: $(kubernetesCluster)
           command: 'init'

       - task: AzureCLI@2
         inputs:
           azureSubscription: $(azureSubscription)
           scriptType: 'bash'
           scriptLocation: 'inlineScript'
           inlineScript: 
             echo "##vso[task.setvariable variable=imgtag]$(az acr repository show-tags --name myacr --repository myrepo --orderby time_desc --top 1 | awk ' /[[:digit:]]/ { print $0 } ' | tr -d '[:space:]')"

       - task: Bash@3
         displayName: 'Fetching repo-tag'
         inputs:
           targetType: 'inline'
           script: |
             echo tag=$(imgtag)
             echo filenames=$(filenames) ### output is: **/myfolder/dev/file1.yaml,**/myfolder/dev/file2.yaml

      - ${{each file in parameters.files}}: ##Error 
       - task: HelmDeploy@0
         displayName: 'Upgrading helmchart'
         inputs:
           connectionType: 'Azure Resource Manager'
           azureSubscription: $(azureSubscription)
           azureResourceGroup: $(azureResourceGroup)
           kubernetesCluster: $(kubernetesCluster)
           command: 'upgrade'
           chartType: 'FilePath'
           chartPath: $(chartPath)
           install: true
           releaseName: $(releaseName)
           ##valueFile: $(valuefiles)
           valueFile: ${{ file }}
           arguments: '--set image.tag=$(imgtag) --set domain=$(domain)'
azure-pipeline.yaml文件如下：

  trigger:
    branches:
      include:
        - master
        - refs/tags/v*
    paths:
      exclude:
        - readme.md

  variables:
    azureSubscription: 'myazuresubscription'
    chartPath: '**/mychart'
    containerRegistry: 'mysc'
    repository: 'myrepo'

  resources:
    repositories:
    - repository: pipelinetemplates
      type: github
      name: 'mygitorg/myrepo'
      endpoint: 'mygitorg'

  stages:
    - stage: Deploy_Cluster
      variables:
        azureResourceGroup: 'myresourcegroup'
        kubernetesCluster: 'mycluster'
        releaseName: 'mychartreleasename'
        #valueFile: '**/mychart/values.yaml'
        domain: 'mydomain'
      jobs:

 - job: A
   pool:
    vmImage: 'ubuntu-latest'
   steps:
   - task: PowerShell@2
     displayName: 'Fetching ValueFiles'
     inputs:
      targetType: 'inline'
      script: |
       Write-Host "Fetching value files"
       cd tenant/dev
       $a=git ls-files
       $List = $a | foreach {'**/myfolder/dev/' + $_}
       Write-Host $List
       $d = '"{0}"' -f ($List -join '","')
       Write-Host $d   ### output is: "**/myfolder/dev/file1.yaml","**/myfolder/dev/file2.yaml"
       Write-Host "##vso[task.setvariable variable=valuefiles;isOutput=true]$d"
     name: fileoutput

      - template: Template-Yaml/deploy-jobs.yaml@pipelinetemplates  ##Error expected a sequence or mapping
        parameters: 
          files : $[dependencies.Deploy.outputs['fileoutput.valuefiles']]
我从此页面中有了一些想法：https://www.aaron-powell.com/posts/2019-05-24-azure-pipeline-templates-and-parameters/有关使用依赖项。

我在Google上搜索了很多，但是到目前为止，我仍未找到解决该问题的方法，我们将不胜感激。

我有一个PowerShell脚本任务，该任务从git存储库中的文件夹获取某些文件的名称，并将其放入变量中。我想在参数中使用这些文件名，并在...

Answer 1

发生错误是因为files仅在运行时可以计算，但是- ${{each file in parameters.files}}在编译时才计算。检查here以获取有关变量语法的更多信息。