website/content/en/docs/reference/glossary/horizontal-pod-autoscaler.md

title	id	date	full_link	short_description	aka	tags
Horizontal Pod Autoscaler	horizontal-pod-autoscaler	2018-04-12	/docs/tasks/run-application/horizontal-pod-autoscale/	An API resource that automatically scales the number of pod replicas based on targeted CPU utilization or custom metric targets.		operation

An API resource that automatically scales the number of pod replicas based on targeted CPU utilization or custom metric targets.

HPA is typically used with {{< glossary_tooltip text="Replication Controllers" term_id="replication-controller" >}}, {{< glossary_tooltip text="Deployments" term_id="deployment" >}}, or Replica Sets. It cannot be applied to objects that cannot be scaled, for example {{< glossary_tooltip text="DaemonSets" term_id="daemonset" >}}.