Kubernetes Vertical Pod Autoscaler

Luca Berton
5 min readOct 30, 2024

This YAML manifest defines a VerticalPodAutoscaler (VPA) for a Kubernetes Deployment named nginx-deployment. The Vertical Pod Autoscaler automatically adjusts the CPU and memory resource requests and limits of your pods based on observed usage, helping ensure efficient resource utilization.

Here’s a breakdown of the manifest:

YAML Breakdown:

apiVersion: autoscaling.k8s.io/v1
kind: VerticalPodAutoscaler
metadata:
name: nginx-vpa # Name of the VerticalPodAutoscaler
spec:
targetRef:
apiVersion: "apps/v1" # API version of the target resource
kind: Deployment # Target resource type (in this case, Deployment)
name: nginx-deployment # Name of the Deployment that the VPA is controlling
updatePolicy:
updateMode: "Auto" # Automatically update the pod resource requests and limits

Explanation of Key Fields:

apiVersion: autoscaling.k8s.io/v1

  • The API version for the VerticalPodAutoscaler resource.

kind: VerticalPodAutoscaler

  • The kind of resource being defined here is a VerticalPodAutoscaler.

metadata.name: nginx-vpa

  • The name of the VerticalPodAutoscaler resource. In this case, it’s called nginx-vpa.

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Luca Berton
Luca Berton

Written by Luca Berton

I help creative Automation DevOps, Cloud Engineer, System Administrator, and IT Professional to succeed with Ansible Technology to automate more things everyday