azure - 如何解压或获取存储在 Azure DevOps Build Piplines 变量组中的嵌套变量的值？

Question

是否可以在 Powershell 脚本中的变量内部使用 Azure Pipelines 变量？

场景

1. 在 Azure Pipelines 变量组中设置了两个变量 - DeploymentCredentials

   a. 部署UATApiPassword =“123456”

   b. DeployPRODApiPassword = "789654"

2. 另一个变量在管道的变量部分设置为 DeploymentEnvironment

3. 在运行时，DeploymentEnvironment 变量的值设置为 UAT 或 PROD

4. 根据环境，我想获取存储为变量的密码，在变量组中定义。在运行时，它应该像...

   # setting the value of the variable to UAT
   Write-Host "##vso[task.setvariable variable=DeploymentEnvironment]UAT" 
   

5. 现在 DevelopmentEnvironment 变量的值为 UAT，在另一个步骤中，我想获取 UAT 部署环境的密码，该密码仅在运行时知道.

   # I want to get the Password 
   # The following works! but not useful for me, UAT is hard-coded!!
   $deployPwd = $(DeployUATApiPassword) # works! but not useful for me, UAT is hard-coded!!
   
   # I want to get the Password
   # the following doesn't work, I only know the environment at runtime
   # Replaces the inner variable to `DeployUATApiPassword`
   # Raises an error, DeployUATApiPassword : The term 'DeployUATApiPassword' is not recognized as the name of a cmdlet...
   $deployPwd = $(Deploy$(DeploymentEnvironment)ApiPassword) 
   
   # All the following didn't work either, but no error...
   Write-Host $('Deploy$(DeploymentEnvironment)ApiPassword')     # Output: DeployUATApiPassword
   Write-Host $($("Deploy$(DeploymentEnvironment)ApiPassword"))  # Output: DeployUATApiPassword
   Write-Host { 'Deploy$(DeploymentEnvironment)ApiPassword' }    # Output: 'DeployUATApiPassword'
   Write-Host { Deploy$(DeploymentEnvironment)ApiPassword }      # Output: DeployUATApiPassword
   Write-Host { $(Deploy$(DeploymentEnvironment)ApiPassword) }   # Output: $(DeployUATApiPassword) 
   

同样，我尝试通过多种方式获取密码，但没有任何效果。例如，其中一种方法是创建另一个变量 DeployApiPassword，我确实将该变量的值设置为 Deploy$(DeploymentEnvironment)ApiPassword。这也没有运气......

$deployPwd = $(DeployApiPassword) # Output: DeployUATApiPassword

期望输出

我想从变量组中设置的变量之一获取密码。密码变量名称包含部署环境。部署环境仅在运行时设置。

    # I know something is wrong with the following, but that's how I want to run.
    $deployPwd = $(Deploy$(DeploymentEnvironment)ApiPassword) 

    Write-Host $deployPwd # output: *** (of course, the pwd is hidden, but at least it fetches)

Answer 1

Azure Pipelines 变量组中设置的变量将用作 PowerShell 任务中的环境变量。因此，基本上，您需要获取如下值:

$environment = $env:DeploymentEnvironment
$deployPwd = $env:DeployUATApiPassword

同时，如果您想根据环境动态获取密码，可以尝试以下操作:

$environment= $env:DeploymentEnvironment

Write-Host "Deployment Environment is " $environment

$realName = $("Deploy${environment}ApiPassword")
$pwd = [Environment]::GetEnvironmentVariable($realName)

#I used UAT password, check it here
Write-Host $pwd.Equals("123456")

输出: