Add hpa for autoscale-demo

devx/autoscale-demo/hpa.yaml

@@ -0,0 +1,24 @@
+kind: HorizontalPodAutoscaler
+apiVersion: autoscaling/v2beta1
+metadata:
+  name: sample-app
+spec:
+  scaleTargetRef:
+    # point the HPA at the sample application
+    # you created above
+    apiVersion: apps/v1
+    kind: Deployment
+    name: sample-app
+  # autoscale between 1 and 10 replicas
+  minReplicas: 1
+  maxReplicas: 10
+  metrics:
+  # use a "Pods" metric, which takes the average of the
+  # given metric across all pods controlled by the autoscaling target
+  - type: Pods
+    pods:
+      # use the metric that you used above: pods/http_requests
+      metricName: http_requests
+      # target 500 milli-requests per second,
+      # which is 1 request every two seconds
+      targetAverageValue: 500m

devx/autoscale-demo/kustomization.yaml

@@ -3,6 +3,7 @@ kind: Kustomization
 
 resources:
   - deployment.yaml
+  - hpa.yaml
   - service.yaml
 
 namespace: autoscale-demo