What is VPA (Vertical Pod Autoscaler)?
Kubernetes component that automatically adjusts CPU and memory requests for pods.
The Vertical Pod Autoscaler (VPA) automatically adjusts the CPU and memory requests and limits for pods based on observed usage. VPA has three modes: Off (recommendation only), Initial (set resources at pod creation), and Auto (update running pods by evicting and re-creating them). VPA is useful for right-sizing over-provisioned pods to reduce waste. It cannot be used with HPA on the same metric (CPU/memory), but can be combined with KEDA on custom metrics.
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Related Terms
More Kubernetes Terms
Admission Controller
A Kubernetes plugin that intercepts API requests before objects are persisted.
Auto Scaling
Automatically adjusting the number of compute resources based on demand.
ClusterIP
The default Kubernetes Service type that exposes a service on an internal cluster IP.
ConfigMap
A Kubernetes object for storing non-sensitive configuration data as key-value pairs.
Controller Manager
Kubernetes control plane component running control loops to maintain desired state.
CoreDNS
The default DNS server in Kubernetes clusters for service discovery.
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