Kubernetes: Horizontal Pod Autoscaling (HPA)

Horizontal Pod Autoscaling: letting your workloads grow and shrink—based on reality, not guesses

One of Kubernetes’ biggest promises is elasticity—the ability to automatically adapt to changing load. Horizontal Pod Autoscaling (HPA) is the feature that turns that promise into reality.

At a high level, HPA automatically adjusts the number of Pod replicas for a workload (Deployment, StatefulSet, etc.) based on observed metrics such as CPU utilization,…