Horizontal pod Auto scaler (HPA ) in AWS eks.md

Horizontal pod scaler (HPA) in AWS eks

Check metric server Installed in your cluster

kubectl -n kube-system get deployment/metrics-server

• If this returns none , add metric server by

kubectl apply -f https://github.com/kubernetes-sigs/metrics-server/releases/download/v0.3.6/components.yaml

• check status of the metric server

kubectl get deployment metrics-server -n kube-system

HPA Example config

apiVersion: autoscaling/v1  
kind: HorizontalPodAutoscaler  
metadata:  
  name: node-angular-autoscaler  
  namespace: nodeangular  
  labels:  
    app: nodeangular  
spec:  
  scaleTargetRef:  
    apiVersion: apps/v1  
    kind: Deployment  
    name: nodeangular  
  minReplicas: 2  
  maxReplicas: 10  
  targetCPUUtilizationPercentage: 10

• save this a pod-autoscaler.yaml

• Add this HPA to cluster by

kubectl apply -f pod-autosacling.yaml