add helm charts

backing-services/ingress-nginx/templates/controller-hpa.yaml

@@ -0,0 +1,47 @@
+{{- if and (eq .Values.controller.kind "Deployment") .Values.controller.autoscaling.enabled (not .Values.controller.keda.enabled) -}}
+apiVersion: {{ ternary "autoscaling/v2" "autoscaling/v2beta2" (.Capabilities.APIVersions.Has "autoscaling/v2") }}
+kind: HorizontalPodAutoscaler
+metadata:
+  {{- with .Values.controller.autoscaling.annotations }}
+  annotations: {{ toYaml . | nindent 4 }}
+  {{- end }}
+  labels:
+    {{- include "ingress-nginx.labels" . | nindent 4 }}
+    app.kubernetes.io/component: controller
+    {{- with .Values.controller.labels }}
+    {{- toYaml . | nindent 4 }}
+    {{- end }}
+  name: {{ include "ingress-nginx.controller.fullname" . }}
+  namespace: {{ include "ingress-nginx.namespace" . }}
+spec:
+  scaleTargetRef:
+    apiVersion: apps/v1
+    kind: Deployment
+    name: {{ include "ingress-nginx.controller.fullname" . }}
+  minReplicas: {{ .Values.controller.autoscaling.minReplicas }}
+  maxReplicas: {{ .Values.controller.autoscaling.maxReplicas }}
+  metrics:
+  {{- with .Values.controller.autoscaling.targetMemoryUtilizationPercentage }}
+  - type: Resource
+    resource:
+      name: memory
+      target:
+        type: Utilization
+        averageUtilization: {{ . }}
+  {{- end }}
+  {{- with .Values.controller.autoscaling.targetCPUUtilizationPercentage }}
+  - type: Resource
+    resource:
+      name: cpu
+      target:
+        type: Utilization
+        averageUtilization: {{ . }}
+  {{- end }}
+  {{- with .Values.controller.autoscalingTemplate }}
+  {{- toYaml . | nindent 2 }}
+  {{- end }}
+  {{- with .Values.controller.autoscaling.behavior }}
+  behavior:
+    {{- toYaml . | nindent 4 }}
+  {{- end }}
+{{- end }}