using AzureFileCopy task outputs in Azure-Pipelines.yml

Question

I am trying to output outputStorageUri and outputStorageContainerSasToken from the AzureFileCopy task and consume them in a powershell script, a simple example of what I am trying to achieve is:

pool:
  vmImage: 'VS2017-Win2016'

variables:
  Parameters.outputStorageUri: ''
  Parameters.outputStorageContainerSasToken: ''

steps:

- task: AzureFileCopy@3
  inputs:
    sourcePath: '$(Build.ArtifactStagingDirectory)\MyProgram.ext'
    azureSubscription: 'MyAzureServiceRole'
    Destination: 'AzureBlob'
    storage: 'myfilestorage'
    ContainerName: 'programs'
    outputStorageUri: '$(Parameters.outputStorageUri)'
    outputStorageContainerSasToken: '$(Parameters.outputStorageContainerSasToken)'
    sasTokenTimeOutInMinutes: 5
  displayName: Upload program to Blob storage


- task: PowerShell@2
  inputs:
      targetType: 'inline'
      script: |
          Write-Host 'URL = ' + $Env:PARAMETERS_OUTPUTSTORAGEURI
      errorActionPreference: 'stop'
      failOnStderr: 'false'
  displayName: Send storage URL to Logger(s)

The file is copied correctly, however Write-Host in the example for the outputStorageUri is always blank! I have also tried a number of other ways to no avail... Please can someone enlighten me as to what I am doing wrong...

Answer 1

We should use the name of the variable, not the variable value in the task.

Please change the $(Parameters.outputStorageUri) to Parameters.outputStorageUri $(Parameters.outputStorageContainerSasToken) to Parameters.outputStorageContainerSasToken, then it will work.

outputStorageUri: Parameters.outputStorageUri
outputStorageContainerSasToken: Parameters.outputStorageContainerSasToken

For more information please refer to Azure File Copy

provide the name of the output variable you would like to use.

Answer 2

Kind of related but if you are using V4 then these are available as Output Variables. This is not there in the documentation but highlighted in this issue.

https://github.com/microsoft/azure-pipelines-tasks/issues/13246