horizontal-pod-autoscaler.yml

---
apiVersion: apps/v1
kind: Deployment
metadata:
  name: hpadeployment
  labels:
    name: hpadeployment
spec:
  replicas: 2
  selector:
    matchLabels:
      name: hpapod
  template:
    metadata:
      labels:
        name: hpapod
    spec:
      containers:
        - name: hpacontainer
          image: k8s.gcr.io/hpa-example
          ports:
          - name: http
            containerPort: 80
          resources:
            requests:
              cpu: "100m"
              memory: "64Mi"
            limits:
              cpu: "100m"
              memory: "256Mi"
---
apiVersion: v1
kind: Service
metadata:
  name: hpaclusterservice
  labels:
    name: hpaservice
spec:
  ports:
    - port: 80
      targetPort: 80
  selector:
    name: hpapod
  type: ClusterIP
---
apiVersion: autoscaling/v2beta1
kind: HorizontalPodAutoscaler
metadata:
  name: hpadeploymentautoscaler
spec:
  scaleTargetRef:
    apiVersion: apps/v1
    kind: Deployment
    name: hpadeployment
  minReplicas: 2
  maxReplicas: 5
  metrics:
    - resource:
        name: cpu
        targetAverageUtilization: 50
      type: Resource