improve nat rule error handling

Author: mbrat2005

AzureBasicLoadBalancerUpgrade/module/AzureBasicLoadBalancerUpgrade/AzureBasicLoadBalancerUpgrade.psd1

@@ -12,7 +12,7 @@
     RootModule = 'AzureBasicLoadBalancerUpgrade'
 
     # Version number of this module.
-    ModuleVersion = '2.5.38'
+    ModuleVersion = '2.5.39'
 
     # Supported PSEditions
     # CompatiblePSEditions = @()
@@ -107,7 +107,7 @@
             # IconUri = ''
 
             # ReleaseNotes of this module
-            ReleaseNotes = 'Add note for -multiLBConfig internal LB outbound connectivity warning.'
+            ReleaseNotes = 'Improve NAT Rule migration logging and error handling.'
 
             # Prerelease string of this module
             # Prerelease = 'beta'

AzureBasicLoadBalancerUpgrade/module/AzureBasicLoadBalancerUpgrade/modules/NatRulesMigration/NatRulesMigration.psm1

@@ -145,13 +145,15 @@ function NatRulesMigration {
             log "Error" $message
         }
     }
-    log -Message "[NatRulesMigration] Saving Standard Load Balancer $($StdLoadBalancer.Name)"
+    log -Message "[NatRulesMigration] Starting saving Standard Load Balancer $($StdLoadBalancer.Name)..."
 
     if ($StdLoadBalancer.InboundNatRules.Count -eq 0) {
         log -Message "[NatRulesMigration] No NAT Rules to migrate. Skipping save."
         return
     }
     else {
+        log -Message "[NatRulesMigration] $($StdLoadBalancer.InboundNatRules.Count) NAT Rules migrated. Saving Standard Load Balancer '$($StdLoadBalancer.Name)'..."
+
         try {
             $ErrorActionPreference = 'Stop'
 
@@ -163,7 +165,7 @@ function NatRulesMigration {
             }
 
             If ($UpdateLBNATRulesJob.Error -or $UpdateLBNATRulesJob.State -eq 'Failed') {
-                Write-Error $UpdateLBNATRulesJob.Error 
+                log -Severity Error -Message "Saving Standard Load Balancer $($StdLoadBalancer.Name) failed with the following errors: $($UpdateLBNATRulesJob.error; $UpdateLBNATRulesJob | Receive-Job). Migration will continue--to recover, manually add the NAT rules to the load balancer, then correct NAT Rule NIC membership after the script completes."
             }
         }
         catch {