PowerShell script to refresh tabular cube on Azure - powershell

Question

I need to setup powershell script for refreshing tabular model cube on Azure, Microsoft SQL Analysis Server (version 15.0.0.52).
I wrote this solution, but every time when it's executed I have same errors.
# PowerShell code
# Connect to a connection to get TenantId and SubscriptionId
$Connection = Get-AutomationConnection -Name "AzureRunAsConnection"
$TenantId = $Connection.TenantId
$SubscriptionId = $Connection.SubscriptionId
# Get the service principal credentials connected to the automation account.
$null = $SPCredential = Get-AutomationPSCredential -Name "Samcred"
# Login to Azure ($null is to prevent output, since Out-Null doesn't work in Azure)
Write-Output "Login to Azure using automation account 'Samcred'."
$null = Login-AzureRmAccount -TenantId $TenantId -SubscriptionId $SubscriptionId -Credential $SPCredential
# Select the correct subscription
Write-Output "Selecting subscription '$($SubscriptionId)'."
$null = Select-AzureRmSubscription -SubscriptionID $SubscriptionId
# Get variable values
$DatabaseName = Get-AutomationVariable -Name 'DatabaseName'
$AnalysisServerName = Get-AutomationVariable -Name 'AnalysisServerName'
# Show info before processing (for testing/logging purpose only)
Write-Output "Processing $($DatabaseName) on $($AnalysisServerName)"
#Process database
$null = Invoke-ProcessASDatabase -databasename $DatabaseName -server $AnalysisServerName -RefreshType "Full" -Credential $SPCredential
# Show done when finished (for testing/logging purpose only)
Write-Output "Done"
Errors are:
Login to Azure using automation account 'Samcred'.
Login-AzureRmAccount : unknown_user_type: Unknown User Type
At line:12 char:9
+ $null = Login-AzureRmAccount -TenantId $TenantId -SubscriptionId $Sub ...
+ ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
+ CategoryInfo : CloseError: (:) [Add-AzureRmAccount], AadAuthenticationFailedException
+ FullyQualifiedErrorId : Microsoft.Azure.Commands.Profile.AddAzureRMAccountCommand
Selecting subscription 'fb3456-56c2-40a2-aae6-9eeace345678'.
Select-AzureRmSubscription : Run Login-AzureRmAccount to login.
At line:16 char:9
+ $null = Select-AzureRmSubscription -SubscriptionID $SubscriptionId
+ ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
+ CategoryInfo : InvalidOperation: (:) [Set-AzureRmContext], PSInvalidOperationException
+ FullyQualifiedErrorId : InvalidOperation,Microsoft.Azure.Commands.Profile.SetAzureRMContextCommand
Processing TabCube on asazure://westus.asazure.windows.net/dex:rw
Invoke-ProcessASDatabase : Exception has been thrown by the target of an invocation.
At line:26 char:9
+ $null = Invoke-ProcessASDatabase -databasename $DatabaseName -server ...
+ ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
+ CategoryInfo : NotSpecified: (:) [Invoke-ProcessASDatabase], TargetInvocationException
+ FullyQualifiedErrorId :
System.Reflection.TargetInvocationException,Microsoft.AnalysisServices.PowerShell.Cmdlets.ProcessASDatabase
Done
Any advice about this ?

Answer 1

$null = $SPCredential = Get-AutomationPSCredential -Name "Samcred"
If you use Microsoft account to login Azure, you will get the error log. In Azure runbook, you could use service principal to login, not use a account. Change your script like below:
$connectionName = "AzureRunAsConnection"
try
{
# Get the connection "AzureRunAsConnection "
$servicePrincipalConnection=Get-AutomationConnection -Name $connectionName
"Logging in to Azure..."
Add-AzureRmAccount `
-ServicePrincipal `
-TenantId $servicePrincipalConnection.TenantId `
-ApplicationId $servicePrincipalConnection.ApplicationId `
-CertificateThumbprint $servicePrincipalConnection.CertificateThumbprint
}
catch {
if (!$servicePrincipalConnection)
{
$ErrorMessage = "Connection $connectionName not found."
throw $ErrorMessage
} else{
Write-Error -Message $_.Exception
throw $_.Exception
}
}