Kubernetes Horizontal Pod Autoscaler

This is a Kubernetes YAML configuration file for a HorizontalPodAutoscaler (HPA). It defines how a Kubernetes deployment should scale based on the CPU utilization of the pods.

Explanation of the YAML:

• apiVersion: autoscaling/v2:
• This specifies the version of the HPA API, where v2 allows more advanced autoscaling features, including custom metrics.
• kind: HorizontalPodAutoscaler:
• This specifies that the object being created is an HPA, which will automatically adjust the number of pod replicas based on observed metrics.
• metadata:
• name: nginx-hpa:
• This gives the HPA a name, nginx-hpa, for identification.

spec:

scaleTargetRef:

• apiVersion: apps/v1: Specifies the API version of the deployment resource that the HPA will control.
• kind: Deployment: Indicates that the HPA is scaling a Kubernetes deployment.
• name: nginx-deployment: The name of the deployment to scale.

minReplicas: 2:

• This ensures that at least 2 replicas (pods) will always be running, regardless of CPU utilization.