Azure管道-在任务之间传递变量[重复]

Question

所有的，

stages:
  - stage: "Test1"
    displayName: "Test1 - Copy KV"
    jobs:
    - deployment : "Deploy"
      timeoutInMinutes: 120
      variables:
        sourceSecrets: ""
      strategy:
          runOnce:
            deploy:
              steps:
              - task: AzureCLI@2
                inputs:
                  azureSubscription: $(ServiceConnection1)
                  scriptType: 'pscore'
                  scriptLocation: 'inlineScript'
                  inlineScript: |
                          if ("$(mysubscription1)"){
                              az account set --subscription "mysubscription1"
                          }

                          $secNames = az keyvault secret list --vault-name "kvName1"  -o json --query "[].name"  | ConvertFrom-Json

                          Write-Host 'Reading secrets...'
                          $secrets = $secNames | % {
                              $secret = az keyvault secret show --name $_ --vault-name "kvName1" -o json | ConvertFrom-Json
                              [PSCustomObject]@{
                                  name  = $_;
                                  value = $secret.value;
                              } 
                          }
                          $json = $($secrets | ConvertTo-Json)
                          echo "##vso[task.setVariable variable=sourceSecrets]$json"
                          
              - task: AzureCLI@2
                inputs:
                  azureSubscription: $(ServiceConnection2)
                  scriptType: 'pscore'
                  scriptLocation: 'inlineScript'
                  inlineScript: |
                          if ("$(mysubscription2)"){
                              az account set --subscription $(mysubscription2)
                          }
                          $secrets = "$(sourceSecrets)" | ConvertFrom-Json
                          $secrets.foreach{
                          Write-Host 'Writing secrets:'
                              az keyvault secret set --vault-name $(kvName2) --name $_.name  --value  $_.value --output none
                              Write-Host '---->' $_.name
                          }                          

ConvertFrom-Json : Conversion from JSON failed with error: Error reading JArray from JsonReader. Path '', line 1, position 1.
At /home/vsts/work/_temp/azureclitaskscript1620360635888_inlinescript.ps1:4 char:18
+ $secrets = "[" | ConvertFrom-Json
+                  ~~~~~~~~~~~~~~~~
+ CategoryInfo          : NotSpecified: (:) [ConvertFrom-Json], ArgumentException
+ FullyQualifiedErrorId : System.ArgumentException,Microsoft.PowerShell.Commands.ConvertFromJsonCommand

Answer 1

通常，管道变量的值只支持字符串类型，并且应该是单行字符串。如果将多行内容传递给管道变量，通常只接收第一行作为变量的值。

在您的示例中，传递给变量的值是一个包含多行内容的JSON对象。

为了避免您所面临的问题，您应该在将JSON对象的内容传递给管道变量之前将其转换为单行字符串。

若要将多行字符串转换为单行字符串，可以尝试下面的命令行：

. . .

# escape '%', '\n' and '\r'
json="${json//'%'/'%25'}"
json="${json//$'\n'/'%0A'}"
json="${json//$'\r'/'%0D'}"

echo "##vso[task.setVariable variable=sourceSecrets]$json"