title: Adding an existing VMs to the Azure Load Balancer Through ARM templates
body: <p>Could anybody please share scripts for adding an existing VMs to the Azure Load Balancer. How can we update the back-end pool of the LB with ARM scripts. 
  I have been following this script "<a href="https://github.com/Azure/azure-quickstart-templates/blob/master/201-2-vms-internal-load-balancer/azuredeploy.json" rel="nofollow noreferrer">https://github.com/Azure/azure-quickstart-templates/blob/master/201-2-vms-internal-load-balancer/azuredeploy.json</a>" ,but the above script is for New deployment. </p>