feat: add prod hpa configuration

k8s/overlays/prod/deployment-prod-patch.yaml

@@ -3,4 +3,4 @@ kind: Deployment
 metadata:
   name: vendaweb-api
 spec:
-  replicas: 15
+  replicas: 2

k8s/overlays/prod/hpa.yaml

@@ -0,0 +1,18 @@
+apiVersion: autoscaling/v2
+kind: HorizontalPodAutoscaler
+metadata:
+  name: vendaweb-api
+spec:
+  scaleTargetRef:
+    apiVersion: apps/v1
+    kind: Deployment
+    name: vendaweb-api
+  minReplicas: 2
+  maxReplicas: 15
+  metrics:
+    - type: Resource
+      resource:
+        name: cpu
+        target:
+          type: Utilization
+          averageUtilization: 70

k8s/overlays/prod/kustomization.yaml

@@ -5,6 +5,7 @@ namespace: vendaweb-prod
 
 resources:
   - ../../base
+  - hpa.yaml
 
 patches:
   - path: service-patch.yaml