Virtual-Pod-Autoscaler

VPA is a component that gives recommendations and can scale pods resources to fit the actual application needs.

Modes:

• "Auto": VPA assigns resource requests on pod creation as well as updates them on existing pods using the preferred update mechanism. Currently, this is equivalent to "Recreate" (see below).
• "Recreate": VPA assigns resource requests on pod creation as well as updates them on existing pods by evicting them when the requested resources differ significantly from the new recommendation (respecting the Pod Disruption Budget, if defined). This mode should be used rarely, only if you need to ensure that the pods are restarted whenever the resource request changes. Otherwise, prefer the "Auto" mode which may take advantage of restart-free updates once they are available.
• "Initial": VPA only assigns resource requests on pod creation and never changes them later.
• "Off": VPA does not automatically change the resource requirements of the pods. The recommendations are calculated and can be inspected in the VPA object.

For more informations see: official repository