Convert to run parallel

Register-Images.ps1

@@ -13,56 +13,48 @@ $subscriptions=Get-AzureRmSubscription
 
 foreach ($sub in $subscriptions){
     
-    #
-    # Make the current subscription active
-    #
-    Select-AzureRmSubscription -SubscriptionName $sub.Name
+    Set-AzureRmContext -Subscription $sub.Name
+    $ctx = Get-AzureRmContext
 
+    Start-Job {param ($ctx,$sub,$location,$sourceURI,$storageId,$RGName,$snapName,$imageNameRegional) 
+        
+        #
+        # Create a snapshot from the remote blob
+        #
+        write-host "Creating Snapshot"
+        $snapshotConfig = New-AzureRmSnapshotConfig -AccountType StandardLRS `
+                                                    -OsType Windows `
+                                                    -Location $location `
+                                                    -CreateOption Import `
+                                                    -SourceUri $sourceURI `
+                                                    -StorageAccountId $storageId 
 
-    #
-    # Create a snapshot from the remote blob
-    #
-    write-host "Creating Snapshot"
-    $snapshotConfig = New-AzureRmSnapshotConfig -AccountType StandardLRS `
-                                                -OsType Windows `
-                                                -Location $location `
-                                                -CreateOption Import `
-                                                -SourceUri $sourceURI `
-                                                -StorageAccountId $storageId 
+        $snap = New-AzureRmSnapshot -AzureRmContext $ctx `
+                                    -ResourceGroupName $RGName `
+                                    -SnapshotName $snapName `
+                                    -Snapshot $snapshotConfig 
+                             
+        #
+        # Create an image from the snapshot
+        #
+        write-host "Creating Image from Snapshot"
+        $imageConfig = New-AzureRmImageConfig -Location $location 
 
-    $snap = New-AzureRmSnapshot -ResourceGroupName $RGName `
-                                -SnapshotName $snapName `
-                                -Snapshot $snapshotConfig 
-                              
-                                
-    
-    #
-    # Create an image from the snapshot
-    #
-    write-host "Creating Image from Snapshot"
-    $imageConfig = New-AzureRmImageConfig -Location $location 
+        Set-AzureRmImageOsDisk -Image $imageConfig `
+                               -OsType Windows `
+                               -OsState Generalized `
+                               -SnapshotId $snap.Id 
 
-    Set-AzureRmImageOsDisk -Image $imageConfig `
-                           -OsType Windows `
-                           -OsState Generalized `
-                           -SnapshotId $snap.Id 
-
-    New-AzureRmImage -ResourceGroupName $RGName `
-                     -ImageName $imageNameRegional `
-                     -Image $imageConfig 
+        New-AzureRmImage -AzureRmContext $ctx `
+                         -ResourceGroupName $RGName `
+                         -ImageName $imageNameRegional `
+                         -Image $imageConfig
+                         
+        #
+        # Cleanup snapshot
+        #
+        write-host "Deleting Snapshot"
+        Remove-AzureRmSnapshot -AzureRmContext $ctx -ResourceGroupName $RGName -SnapshotName $snapName -force                    
 
-}
-
-foreach ($sub in $subscriptions){
-
-    #
-    # Make the current subscription active
-    #
-    Select-AzureRmSubscription -SubscriptionName $sub.Name
-
-    #
-    # Cleanup snapshot
-    #
-    write-host "Deleting Snapshot"
-    Remove-AzureRmSnapshot -ResourceGroupName $RGName -SnapshotName $snapName -force
+    } -ArgumentList $ctx,$sub,$location,$sourceURI,$storageId,$RGName,$snapName,$imageNameRegional
 }