Pass build variables to powershell inline script in Azure DevOps pipeline

Pass build variables to powerhshell inline script in Azure DevOps

To get the build variables with inline power shell script, you can try to use following syntax $env:variable:

$env:myvariable

The build variable:

The build result:

Note:At this moment, the value of nested variables (like $(myvariable$(Build.SourceBranchName))) on build variables table are not yet supported in the build pipelines.

Hope this helps.

here's what's working for me:

$(variableName)

for example built-in variable called Build.BuildNumber can be accessed like so:

$(Build.BuildNumber)

full example with format function:

- task: AzurePowerShell@3
  displayName: UpdatePrereq
  inputs:
    azureSubscription: ${{ parameters.azureSubscription }}
    ScriptType: InlineScript
    Inline: |
        ${{ format('. $(Build.Repository.LocalPath)\scripts\_helpers.ps1
        Update-DeploymentPrereq -resourceGroup {1} -location {3}
        Update-Prereq -pathSuffix {0} -pathBase $(Build.Repository.LocalPath) -resourceGroup {1} -buildId $(Build.BuildNumber) -paramFile {2}
        Update-DeploymentConcurrency -resourceGroup {1} -buildId $(Build.BuildNumber)',
            parameters.buildDir, parameters.resourceGroupName, parameters.paramFile, parameters.location ) }}
    azurePowerShellVersion: LatestVersion

If you need to use nested variables you can use something like this:

$name = "CONNECTIONSTRING_$(Agent.MachineName)"
$val = [System.Environment]::GetEnvironmentVariable($name)

And then you get the value of the variable named CONNECTIONSTRING_MACHINENAME

Use $env:variableName

If your variable names contain dots, replace the dots with underscore:

  Write-Host "variable.name= $env:variable_name"