feat: adding HPA for deployment

templates/deployment.yaml

@@ -23,6 +23,14 @@ spec:
         - name: {{ .Chart.Name }}
           image: {{ .Values.image.containerImg }}
           imagePullPolicy: {{ .Values.image.pullPolicy }}
+          #TODO: Need to add requests and limits for every container
+          # resources:
+          #   requests:
+          #     memory: "1Gi"
+          #     cpu: "1000m"
+          #   limits:
+          #     memory: "1Gi"
+          #     cpu: "1000m"
           ports:
             - name: http
               containerPort: {{ .Values.service.port }}

templates/hpa.yaml

@@ -0,0 +1,19 @@
+apiVersion: autoscaling/v2
+kind: HorizontalPodAutoscaler
+metadata:
+  name: {{ .Release.Name }}-hpa
+  namespace: {{ .Values.namespace }}
+spec:
+  scaleTargetRef:
+    apiVersion: apps/v1
+    kind: Deployment
+    name: {{ .Release.Name }}-deployment
+  minReplicas: {{ .Values.hpa.minReplicas }}
+  maxReplicas: {{ .Values.hpa.maxReplicas }}
+  metrics:
+    - type: Resource
+      resource:
+        name: cpu
+        target:
+          type: Utilization
+          averageUtilization: {{ .Values.hpa.metrics.averageUtilization }}

values.yaml

@@ -15,6 +15,13 @@ imagePullSecrets:
 
 namespace: webapp
 
+hpa:
+  metrics:
+    averageUtilization: 20
+
+  minReplicas: 1
+  maxReplicas: 7
+
 deployStrat:
   rolling: RollingUpdate
   maxSurge: 1