fix(DMVP-9764): Add autoscaling behavior

charts/base/Chart.yaml

@@ -15,13 +15,13 @@ type: application
 # This is the chart version. This version number should be incremented each time you make changes
 # to the chart and its templates, including the app version.
 # Versions are expected to follow Semantic Versioning (https://semver.org/)
-version: 0.3.24
+version: 0.3.25
 
 # This is the version number of the application being deployed. This version number should be
 # incremented each time you make changes to the application. Versions are not expected to
 # follow Semantic Versioning. They should reflect the version the application is using.
 # It is recommended to use it with quotes.
-appVersion: "0.3.24"
+appVersion: "0.3.25"
 
 dependencies:
   - name: gateway-api

charts/base/templates/hpa.yaml

@@ -42,4 +42,8 @@ spec:
         targetAverageUtilization: {{ .Values.autoscaling.targetMemoryUtilizationPercentage }}
         {{- end }}
     {{- end }}
+  {{- if and (semverCompare ">=1.23-0" $kubeVersion) .Values.autoscaling.behavior }}
+  behavior:
+{{ toYaml .Values.autoscaling.behavior | nindent 4 }}
+  {{- end }}
 {{- end }}

charts/base/values.yaml

@@ -219,6 +219,25 @@ autoscaling:
   maxReplicas: 100
   targetCPUUtilizationPercentage: 80
 
+  # Optional HPA scale up/down behavior (Kubernetes autoscaling/v2+).
+  # If set, it will be rendered under `spec.behavior` in the generated HPA.
+  #
+  # behavior:
+  #   scaleUp:
+  #     stabilizationWindowSeconds: 0
+  #     selectPolicy: Max
+  #     policies:
+  #       - type: Percent
+  #         value: 100
+  #         periodSeconds: 60
+  #   scaleDown:
+  #     stabilizationWindowSeconds: 300
+  #     selectPolicy: Max
+  #     policies:
+  #       - type: Percent
+  #         value: 50
+  #         periodSeconds: 60
+
 # If you want scale deployment depends on AWS SQS queue size
 # autoscaling:
 #   enabled: true

examples/base/basic-with-autoscaling-behavior.yaml

@@ -0,0 +1,64 @@
+# helm diff upgrade --install -n localhost basic ./charts/base/ -f ./examples/base/basic.yaml
+
+image:
+  repository: mendhak/http-https-echo
+  tag: 34
+
+containerPort: 8080
+
+configs:
+  ROLLOUT_TRIGGER_VERSION: "8"
+
+service:
+  enabled: true
+  type: ClusterIP
+
+autoscaling:
+  enabled: true
+  minReplicas: 1
+  maxReplicas: 5
+  targetCPUUtilizationPercentage: 99
+  behavior:
+    scaleUp:
+      stabilizationWindowSeconds: 0
+      selectPolicy: Max
+      policies:
+        - type: Percent
+          value: 100
+          periodSeconds: 60
+    scaleDown:
+      stabilizationWindowSeconds: 300
+      selectPolicy: Max
+      policies:
+        - type: Percent
+          value: 50
+          periodSeconds: 60
+
+pdb:
+  enabled: true
+  minAvailable: 1
+
+readinessProbe:
+  initialDelaySeconds: 5
+  failureThreshold: 1
+  httpGet:
+    path: /health
+    port: http
+livenessProbe:
+  initialDelaySeconds: 5
+  failureThreshold: 3
+  httpGet:
+    path: /health
+    port: http
+resources:
+  requests:
+    cpu: 100m
+
+setIngressClassByField: true
+ingress:
+  enabled: true
+  class: nginx
+  hosts:
+    - host: http-echo-basic.localhost
+      paths:
+        - path: "/ping"