feat: Add HPA and VPA autoscaling configurations for telecom platform components

- Add api-server HPA with 2-10 replicas scaling on CPU (70%), memory (80%), HTTP requests (100/s), queue messages (1000)
- Add charging-engine HPA with 2-8 replicas scaling on CPU (75%), memory (85%), billing events (50/s)
- Add packet-gateway HPA with 2-12 replicas scaling on CPU (60%), memory (75%), packets (1000/s)
- Add web-dashboard HPA with 1-6 replicas scaling on CPU (70%), memory (80%), active sessions (50)
- Configure H

deployments/autoscaling/hpa.yaml

@@ -0,0 +1,218 @@
+apiVersion: autoscaling/v2
+kind: HorizontalPodAutoscaler
+metadata:
+  name: api-server-hpa
+  namespace: telecom-platform
+  labels:
+    app.kubernetes.io/name: api-server-hpa
+    app.kubernetes.io/component: autoscaling
+    app.kubernetes.io/part-of: telecom-platform
+spec:
+  scaleTargetRef:
+    apiVersion: apps/v1
+    kind: Deployment
+    name: api-server
+  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
+  - type: Pods
+    pods:
+      metric:
+        name: http_requests_per_second
+      target:
+        type: AverageValue
+        averageValue: "100"
+  - type: Object
+    object:
+      metric:
+        name: queue_messages
+      describedObject:
+        apiVersion: v1
+        kind: Service
+        name: api-server
+      target:
+        type: Value
+        value: "1000"
+  behavior:
+    scaleDown:
+      stabilizationWindowSeconds: 300
+      policies:
+      - type: Percent
+        value: 10
+        periodSeconds: 60
+      - type: Pods
+        value: 2
+        periodSeconds: 60
+      selectPolicy: Min
+    scaleUp:
+      stabilizationWindowSeconds: 60
+      policies:
+      - type: Percent
+        value: 50
+        periodSeconds: 60
+      - type: Pods
+        value: 4
+        periodSeconds: 60
+      selectPolicy: Max
+---
+apiVersion: autoscaling/v2
+kind: HorizontalPodAutoscaler
+metadata:
+  name: charging-engine-hpa
+  namespace: telecom-platform
+  labels:
+    app.kubernetes.io/name: charging-engine-hpa
+    app.kubernetes.io/component: autoscaling
+    app.kubernetes.io/part-of: telecom-platform
+spec:
+  scaleTargetRef:
+    apiVersion: apps/v1
+    kind: Deployment
+    name: charging-engine
+  minReplicas: 2
+  maxReplicas: 8
+  metrics:
+  - type: Resource
+    resource:
+      name: cpu
+      target:
+        type: Utilization
+        averageUtilization: 75
+  - type: Resource
+    resource:
+      name: memory
+      target:
+        type: Utilization
+        averageUtilization: 85
+  - type: Pods
+    pods:
+      metric:
+        name: billing_events_per_second
+      target:
+        type: AverageValue
+        averageValue: "50"
+  behavior:
+    scaleDown:
+      stabilizationWindowSeconds: 300
+      policies:
+      - type: Percent
+        value: 10
+        periodSeconds: 60
+    scaleUp:
+      stabilizationWindowSeconds: 60
+      policies:
+      - type: Percent
+        value: 100
+        periodSeconds: 60
+---
+apiVersion: autoscaling/v2
+kind: HorizontalPodAutoscaler
+metadata:
+  name: packet-gateway-hpa
+  namespace: telecom-platform
+  labels:
+    app.kubernetes.io/name: packet-gateway-hpa
+    app.kubernetes.io/component: autoscaling
+    app.kubernetes.io/part-of: telecom-platform
+spec:
+  scaleTargetRef:
+    apiVersion: apps/v1
+    kind: Deployment
+    name: packet-gateway
+  minReplicas: 2
+  maxReplicas: 12
+  metrics:
+  - type: Resource
+    resource:
+      name: cpu
+      target:
+        type: Utilization
+        averageUtilization: 60
+  - type: Resource
+    resource:
+      name: memory
+      target:
+        type: Utilization
+        averageUtilization: 75
+  - type: Pods
+    pods:
+      metric:
+        name: packets_per_second
+      target:
+        type: AverageValue
+        averageValue: "1000"
+  behavior:
+    scaleDown:
+      stabilizationWindowSeconds: 300
+      policies:
+      - type: Percent
+        value: 15
+        periodSeconds: 60
+    scaleUp:
+      stabilizationWindowSeconds: 30
+      policies:
+      - type: Percent
+        value: 200
+        periodSeconds: 60
+---
+apiVersion: autoscaling/v2
+kind: HorizontalPodAutoscaler
+metadata:
+  name: web-dashboard-hpa
+  namespace: telecom-platform
+  labels:
+    app.kubernetes.io/name: web-dashboard-hpa
+    app.kubernetes.io/component: autoscaling
+    app.kubernetes.io/part-of: telecom-platform
+spec:
+  scaleTargetRef:
+    apiVersion: apps/v1
+    kind: Deployment
+    name: web-dashboard
+  minReplicas: 1
+  maxReplicas: 6
+  metrics:
+  - type: Resource
+    resource:
+      name: cpu
+      target:
+        type: Utilization
+        averageUtilization: 70
+  - type: Resource
+    resource:
+      name: memory
+      target:
+        type: Utilization
+        averageUtilization: 80
+  - type: Pods
+    pods:
+      metric:
+        name: active_sessions
+      target:
+        type: AverageValue
+        averageValue: "50"
+  behavior:
+    scaleDown:
+      stabilizationWindowSeconds: 300
+      policies:
+      - type: Percent
+        value: 20
+        periodSeconds: 60
+    scaleUp:
+      stabilizationWindowSeconds: 60
+      policies:
+      - type: Percent
+        value: 100
+        periodSeconds: 60

deployments/autoscaling/vpa.yaml

@@ -0,0 +1,107 @@
+apiVersion: autoscaling.k8s.io/v1
+kind: VerticalPodAutoscaler
+metadata:
+  name: api-server-vpa
+  namespace: telecom-platform
+  labels:
+    app.kubernetes.io/name: api-server-vpa
+    app.kubernetes.io/component: autoscaling
+    app.kubernetes.io/part-of: telecom-platform
+spec:
+  targetRef:
+    apiVersion: apps/v1
+    kind: Deployment
+    name: api-server
+  updatePolicy:
+    updateMode: "Auto"
+  resourcePolicy:
+    containerPolicies:
+    - containerName: api-server
+      minAllowed:
+        cpu: 100m
+        memory: 128Mi
+      maxAllowed:
+        cpu: 2000m
+        memory: 2Gi
+      controlledResources: ["cpu", "memory"]
+---
+apiVersion: autoscaling.k8s.io/v1
+kind: VerticalPodAutoscaler
+metadata:
+  name: charging-engine-vpa
+  namespace: telecom-platform
+  labels:
+    app.kubernetes.io/name: charging-engine-vpa
+    app.kubernetes.io/component: autoscaling
+    app.kubernetes.io/part-of: telecom-platform
+spec:
+  targetRef:
+    apiVersion: apps/v1
+    kind: Deployment
+    name: charging-engine
+  updatePolicy:
+    updateMode: "Auto"
+  resourcePolicy:
+    containerPolicies:
+    - containerName: charging-engine
+      minAllowed:
+        cpu: 100m
+        memory: 128Mi
+      maxAllowed:
+        cpu: 1500m
+        memory: 1.5Gi
+      controlledResources: ["cpu", "memory"]
+---
+apiVersion: autoscaling.k8s.io/v1
+kind: VerticalPodAutoscaler
+metadata:
+  name: packet-gateway-vpa
+  namespace: telecom-platform
+  labels:
+    app.kubernetes.io/name: packet-gateway-vpa
+    app.kubernetes.io/component: autoscaling
+    app.kubernetes.io/part-of: telecom-platform
+spec:
+  targetRef:
+    apiVersion: apps/v1
+    kind: Deployment
+    name: packet-gateway
+  updatePolicy:
+    updateMode: "Auto"
+  resourcePolicy:
+    containerPolicies:
+    - containerName: packet-gateway
+      minAllowed:
+        cpu: 100m
+        memory: 128Mi
+      maxAllowed:
+        cpu: 3000m
+        memory: 3Gi
+      controlledResources: ["cpu", "memory"]
+---
+apiVersion: autoscaling.k8s.io/v1
+kind: VerticalPodAutoscaler
+metadata:
+  name: web-dashboard-vpa
+  namespace: telecom-platform
+  labels:
+    app.kubernetes.io/name: web-dashboard-vpa
+    app.kubernetes.io/component: autoscaling
+    app.kubernetes.io/part-of: telecom-platform
+spec:
+  targetRef:
+    apiVersion: apps/v1
+    kind: Deployment
+    name: web-dashboard
+  updatePolicy:
+    updateMode: "Auto"
+  resourcePolicy:
+    containerPolicies:
+    - containerName: web-dashboard
+      minAllowed:
+        cpu: 50m
+        memory: 64Mi
+      maxAllowed:
+        cpu: 1000m
+        memory: 1Gi
+      controlledResources: ["cpu", "memory"]