在AzurePowerShellV5内联脚本中引用yaml变量

Question

我有一个Azure DevOps yaml管道，它看起来(有点像)如下：

variables:
  MyVar: Test

Steps:
  - task: AzurePowerShell@5
    displayName: 'Test variables from yml file'
    inputs:
      azureSubscription: MyServiceConnection
      ScriptType: InLineScript
      InLine: |
        Write-Host "I really want to see the values from the variables in the yml file here"
        Write-Host "parameters from the yml file would be great too"
        Write-Host "But what would I write to do that?"
        Write-Host "$(MyVar) <- Nothing here"
        Write-Host "$(variables.MyVar) <- Nothing here"
        Write-Host "$DoesThisWork <- Nothing here"
        Write-Host "$OrThis <- Nothing here"
      env:
        DoesThisWork: $(MyVar)
        OrThis: $(variables.MyVar)

如何在MyVar脚本中使用InLine？

Answer 1

我把它简化到尽可能简单的程度，它运行得很好：

pool: 
  vmImage: 'windows-latest'

variables: 
  myVar: test value

steps:
  - powershell: Write-Host "$(myVar)"

生成：

​

​

我修改了您的示例以删除未编译的env块，并删除不正确的变量引用：

pool: 
  vmImage: 'windows-latest'

variables: 
  myVar: test value

steps:
- task: AzurePowerShell@5
  inputs:
    azureSubscription: 'My Service Connection Name'
    ScriptType: 'InlineScript'
    Inline: |
      Write-Host "I really want to see the values from the variables in the yml file here"
            Write-Host "parameters from the yml file would be great too"
            Write-Host "But what would I write to do that?"
            Write-Host "$(MyVar) <- Nothing here"
    azurePowerShellVersion: 'LatestVersion'

并得到：

​

​

由于语法$(variables.MyVar)无效，它没有通过第一个。该语法的工作原理如下：

${{ variables.MyVar }}

• Runtime (任务执行前)：$(MyVar) -展开为"$(MyVar)“如果empty

• Runtime (为条件而设计，或默认值导致问题)：$[variables.MyVar] -如果空的

扩展为空字符串

我想知道缺乏Azure Powershell版本是否是您的问题之一？

Answer 2

指定env块时，它会将变量创建为环境变量。

在PowerShell中，您使用$env:VariableName引用环境变量。所以就你而言，$env:DoesThisWork。