Delete Empty Load Balancers with No Virtual Machines

Hi All,

Below script will help you to find and delete empty load balancers with no virtual machines from Azure environment.

Find Empty Load Balancers

You can find an empty load balancer by checking its BackEndIPConfigurations. Example:-

1. $myLoadBalancer = Get-AzureRmLoadBalancer -ResourceGroupName ‘MyTempResourceGroup’ -Name ‘MyTempLoadBalancer’
2. if($myLoadBalancer.BackendAddressPools.Backendipconfigurations -eq $null)
3. {
4.     Write-Host “Load Balancer is empty”
5. }

Delete Empty Load Balancer

Remove-AzureRmLoadBalancer command deletes a load balancer. You will be required to pass name of the load balancer and resource group name. Example:-

1. Remove-AzureRmLoadBalancer -Name ‘MyTempLoadBalancer’ -ResourceGroupName ‘MyTempResourceGroup’ -Force 

Full Script

Below script will find and delete empty load balancers in a given Subscription in Azure

1. #1. Declare Variables
2. $subscriptionName = ‘MyTestSubscription’
4. #2. Selecting Subscription
5. $ignoreOutput = Select-AzureRmSubscription -SubscriptionName $subscriptionName
7. #3. Searching ResourceGroups in Subscription
8. $resourceGroups = Get-AzureRmResourceGroup
10. #4. Iterate through all resource groups to find empty Load Balancers
11. foreach($currentResourceGroup in $resourceGroups)
12. {
13.     #5. Searching LoadBalancers
14.     $loadBalancers = Get-AzureRmLoadBalancer -ResourceGroupName $currentResourceGroup.ResourceGroupName
16.     foreach($currentLoadBalancer in $loadBalancers)
17.     { 
18.         #6. Validating if LoadBalancer is empty
19.         if($currentLoadBalancer.BackendAddressPools.Backendipconfigurations -eq $null)
20.         {
21.             #7. Deleting empty LoadBalancer in Azure
22.             Remove-AzureRmLoadBalancer -Name $currentLoadBalancer.Name -ResourceGroupName $currentResourceGroup.ResourceGroupName -Force
23.         }           
24.     }
25. }    

Happy Coding!!!