Deploy-FinOpsHub throws "Cannot bind argument to parameter 'Path' because it is null" when ran from Azure Devops agent

[erose96]

🐛 Problem

Deploy-FinOpsHub throws the error "Cannot bind argument to parameter 'Path' because it is null" when ran in an Azure Devops pipeline. I think this is caused by the $env:temp call the function makes which Azure Devops agents seem to have an issue with.

👣 Repro steps

1. Create an AzurePowershell@5 Azure Devops task that installs and imports the FinOpsToolkit pwsh module
2. Add a Deploy-FinOpsHub call to the script
3. See the error

🤔 Expected

Should attempt to resolve a different path if $env:temp returns $null.

ℹ️ Additional context

Azure Devops task I am using:

        - task: AzurePowerShell@5
            displayName: 'Deploy TSC FinOps Hub'
            inputs:
              azureSubscription: $(Subscription)
              pwsh: true
              azurePowershellVersion: LatestVersion
              ScriptType: 'InlineScript'
              Inline: |
                Write-Output "Installing FinOps Toolkit pwsh module"
                Install-Module -Name FinOpsToolkit -Force -Confirm:$false
                Import-Module -Name FinOpsToolkit
                $version = "${{ parameters.Version }}"
                $name = "$(ResourcesNames)"
                $resourceGroup = "$(ResourceGroup)"
                Deploy-FinOpsHub `
                  -Name $name `
                  -ResourceGroup $resourceGroup `
                  -Location "eastus" `
                  -Preview:$true `
                  -Version $version
                Write-Output "Deployment complete"

My current workaround is to add the following at the beginning of the inline script:

                [Environment]::SetEnvironmentVariable("temp", "/home/vsts/work/_temp/")

🙋‍♀️ Ask for the community

Let me know if others can reproduce this, especially with GitHub Actions whose runners images are built from the same Dockerfiles as the Azure Devops agents.

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