I am trying to utilise 'foreach -Parallel' to perform processing across multiple subscriptions however I've noticed that 'parallel' uses the same 'PSSourceJobInstanceId' as the workflow therefore only supports one subscription context at a time.
Is there a work-around for this or do Azure Automation workflows not support 'Parallel' across subscription contexts?
Code example;
workflow WF_Test
{
$cred = Get-AutomationPSCredential -Name '###'
$null = Add-AzAccount -Credential $cred
$subscriptionList = @('ec5f9429-###','ccd47b39-###')
"* With -Parallel"
foreach -Parallel ($subscription in $subscriptionList) {
Set-AzContext -Subscription $subscription
"Total VMs $((Get-AzVM).Count)"
}
"* Without -Parallel"
Set-AzContext -Subscription $subscriptionList[0]
"Total VMs $((Get-AzVM).Count)"
Set-AzContext -Subscription $subscriptionList[1]
"Total VMs $((Get-AzVM).Count)"
Output;
* With -Parallel
PSComputerName : localhost
PSSourceJobInstanceId : 2b5feb08-dadb-4b21-a689-aa94f169095b
Name : NonProd (ccd47b39-###) - ### - ###
Account : ###
Environment : AzureCloud
Subscription : ccd47b39-###
Tenant : ###
TokenCache : Microsoft.Azure.Commands.Common.Authentication.Core.ProtectedFileTokenCache
VersionProfile :
ExtendedProperties : {}
PSComputerName : localhost
Total VMs - 98
PSSourceJobInstanceId : 2b5feb08-dadb-4b21-a689-aa94f169095b
Name : Prod (ec5f9429-###) - ### - ###
Account : ###
Environment : AzureCloud
Subscription : ec5f9429-###
Tenant : ###
TokenCache : Microsoft.Azure.Commands.Common.Authentication.Core.ProtectedFileTokenCache
VersionProfile :
ExtendedProperties : {}
Total VMs - 98
* Without -Parallel
PSComputerName : localhost
PSSourceJobInstanceId : 2b5feb08-dadb-4b21-a689-aa94f169095b
Name : Prod (ec5f9429-###) - ### - ###
Account : ###
Environment : AzureCloud
Subscription : ec5f9429-###
Tenant : ###
TokenCache : Microsoft.Azure.Commands.Common.Authentication.Core.ProtectedFileTokenCache
VersionProfile :
ExtendedProperties : {}
Total VMs - 98
PSComputerName : localhost
PSSourceJobInstanceId : 2b5feb08-dadb-4b21-a689-aa94f169095b
Name : NonProd (ccd47b39-###) - ### - ###
Account : ###
Environment : AzureCloud
Subscription : ccd47b39-###
Tenant : ###
TokenCache : Microsoft.Azure.Commands.Common.Authentication.Core.ProtectedFileTokenCache
VersionProfile :
ExtendedProperties : {}
Total VMs - 31
Also tried using a 'runspace' withing the 'foreach -Parallel' however this made no difference;
InlineScript {
$Runspace = [runspacefactory]::CreateRunspace()
$PowerShell = [powershell]::Create()
$PowerShell.runspace = $Runspace
$Runspace.Open()
[void]$PowerShell.AddScript({
Set-AzContext -Subscription $Using:subscription
"Total VMs $((Get-AzVM).Count)"
})
$PowerShell.Invoke()
$PowerShell.Dispose()
}
Thanks in advance.
Paul
