Autoscaling Overview Managed instance groups offer autoscaling capabilities that allow you to automatically add or remove instances from a managed instance group based on increases or decreases in load. Autoscaling helps your applications gracefully handle increases in traffic and reduces cost when the need for resources is lower. You just define the autoscaling policy, and the autoscaler performs automatic scaling based on the measured load. Autoscaling works by scaling your instance group in or out. That is, it adds more instances to your instance group when there is more load (scaling out) and removes instances when the need for instances is lowered (scaling in). Objectives In this lab, you learn how to perform the following tasks: Create a custom image for a web server Create an instance template based on the custom image Create a managed instance group Create a load balancer Stress test the autoscaler What you'll need To complete this lab, you'll ...