Autoscaling is a core capability of Kubernetes. The tighter you configure the scaling mechanisms – HPA, VPA, and Cluster Autoscaler – the lower the waste and costs of running your application. 

Kubernetes comes with three types of autoscaling mechanisms: Horizontal Pod Autoscaler (HPA), Vertical Pod Autoscaler (VPA), and Cluster Autoscaler. Each of these adds a unique ingredient to your overarching goal of autoscaling for cloud cost optimization.