Horizontal pod autoscaling

k8s/user-preferences-deployment.yaml

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+apiVersion: apps/v1
+kind: Deployment
+metadata:
+  name: teachlink-user-preferences
+  namespace: production
+  labels:
+    app: teachlink
+    component: user-preferences
+spec:
+  replicas: 2
+  selector:
+    matchLabels:
+      app: teachlink
+      component: user-preferences
+  template:
+    metadata:
+      labels:
+        app: teachlink
+        component: user-preferences
+    spec:
+      containers:
+      - name: user-preferences
+        image: rinafcode/teachlink-user-preferences:latest
+        imagePullPolicy: Always
+        ports:
+        - containerPort: 3000
+        resources:
+          requests:
+            cpu: 250m
+            memory: 256Mi
+          limits:
+            cpu: 1000m
+            memory: 512Mi
+        env:
+        - name: NODE_ENV
+          value: "production"
+        - name: PORT
+          value: "3000"

k8s/user-preferences-hpa.yaml

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+apiVersion: autoscaling/v2
+kind: HorizontalPodAutoscaler
+metadata:
+  name: teachlink-user-preferences-hpa
+  namespace: production
+  labels:
+    app: teachlink
+    component: user-preferences
+spec:
+  scaleTargetRef:
+    apiVersion: apps/v1
+    kind: Deployment
+    name: teachlink-user-preferences
+  minReplicas: 2
+  maxReplicas: 10
+  metrics:
+  - type: Resource
+    resource:
+      name: cpu
+      target:
+        type: Utilization
+        averageUtilization: 70
+  - type: Resource
+    resource:
+      name: memory
+      target:
+        type: Utilization
+        averageUtilization: 80