feat: Add pre defined values for HPA in Argo Rollouts controller

Signed-off-by: vitor.cassiano <vitor.cassiano@picpay.com>

charts/argo-rollouts/templates/_helpers.tpl

@@ -109,11 +109,3 @@ Return the appropriate apiVersion for pod disruption budget
 {{- print "policy/v1" -}}
 {{- end -}}
 {{- end -}}
-
-{{/*
-Expand the namespace of the release.
-Allows overriding it for multi-namespace deployments in combined charts.
-*/}}
-{{- define "argo-rollouts.namespace" -}}
-{{- default .Release.Namespace .Values.namespaceOverride | trunc 63 | trimSuffix "-" -}}
-{{- end }}

charts/argo-rollouts/templates/controller/hpa.yaml

@@ -3,9 +3,10 @@ apiVersion: autoscaling/v2
 kind: HorizontalPodAutoscaler
 metadata:
   name: {{ include "argo-rollouts.fullname" . }}
-  namespace: {{ include  "argo-rollouts.namespace" . }}
+  namespace: {{ .Release.Namespace | quote }}
   labels:
-    {{- include "argo-rollouts.labels" (dict "context" .) | nindent 4 }}
+    app.kubernetes.io/component: {{ .Values.controller.component }}
+    {{- include "argo-rollouts.labels" . | nindent 4 }}
 spec:
   scaleTargetRef:
     apiVersion: apps/v1

charts/argo-rollouts/values.yaml

@@ -61,12 +61,36 @@ controller:
   tolerations: []
   # -- Assign custom [affinity] rules to the deployment
   affinity: {}
+  # -- Argo Rollouts controller HPA
   autoscaling:
-    enabled: true
-    minReplicas: 1
-    maxReplicas: 2
+    # -- Enable Horizontal Pod Autoscaler ([HPA]) for the Argo Rollouts controller
+    enabled: false
+    # -- Minimum number of replicas for the Argo Rollouts controller [HPA]
+    minReplicas: 2
+    # -- Maximum number of replicas for the Argo Rollouts controller [HPA]
+    maxReplicas: 10
+    # -- Average CPU utilization percentage for the Argo Rollouts controller [HPA]
     targetCPUUtilizationPercentage: 80
+    # -- Average memory utilization percentage for the Argo Rollouts controller [HPA]
     targetMemoryUtilizationPercentage: 80
+    # -- Configures the scaling behavior of the target in both Up and Down directions.
+    behavior: {}
+      # scaleDown:
+      #  stabilizationWindowSeconds: 300
+      #  policies:
+      #   - type: Pods
+      #     value: 1
+      #     periodSeconds: 180
+      # scaleUp:
+      #   stabilizationWindowSeconds: 300
+      #   policies:
+      #   - type: Pods
+      #     value: 2
+      #     periodSeconds: 60
+    # -- Configures custom HPA metrics for the Argo Rollouts controller
+    # Ref: https://kubernetes.io/docs/tasks/run-application/horizontal-pod-autoscale/
+    metrics: []
+
   logging:
     # -- Set the logging level (one of: `debug`, `info`, `warn`, `error`)
     level: info