feat: Add HPA for ArgoCD server and repoServer components (#240)

* argo-cd: add optional hpa, cleanup whitespace

charts/argo-cd/templates/argocd-server/hpa.yaml

@@ -0,0 +1,33 @@
+{{- if .Values.server.autoscaling.enabled }}
+apiVersion: autoscaling/v2beta1
+kind: HorizontalPodAutoscaler
+metadata:
+  labels:
+    app.kubernetes.io/name: {{ include "argo-cd.name" . }}-{{ .Values.server.name }}-hpa
+    helm.sh/chart: {{ include "argo-cd.chart" . }}
+    app.kubernetes.io/instance: {{ .Release.Name }}
+    app.kubernetes.io/managed-by: {{ .Release.Service }}
+    app.kubernetes.io/part-of: argocd
+    app.kubernetes.io/component: {{ .Values.server.name }}
+  name: {{ template "argo-cd.server.fullname" . }}-hpa
+spec:
+  scaleTargetRef:
+    apiVersion: apps/v1
+    kind: Deployment
+    name: {{ template "argo-cd.server.fullname" . }}
+  minReplicas: {{ .Values.server.autoscaling.minReplicas }}
+  maxReplicas: {{ .Values.server.autoscaling.maxReplicas }}
+  metrics:
+{{- with .Values.server.autoscaling.targetCPUUtilizationPercentage }}
+    - type: Resource
+      resource:
+        name: cpu
+        targetAverageUtilization: {{ . }}
+{{- end }}
+{{- with .Values.server.autoscaling.targetMemoryUtilizationPercentage }}
+    - type: Resource
+      resource:
+        name: memory
+        targetAverageUtilization: {{ . }}
+{{- end }}
+{{- end }}