helm: add optional VerticalPodAutoscaler for the operator Deployment

packaging/helm-charts/helm3/strimzi-kafka-operator/templates/057-VerticalPodAutoscaler-strimzi-cluster-operator.yaml

@@ -0,0 +1,26 @@
+{{- if .Values.verticalPodAutoscaler.enabled }}
+apiVersion: autoscaling.k8s.io/v1
+kind: VerticalPodAutoscaler
+metadata:
+  name: strimzi-cluster-operator
+  namespace: {{ .Release.Namespace }}
+  labels:
+    app: {{ template "strimzi.name" . }}
+    chart: {{ template "strimzi.chart" . }}
+    component: vertical-pod-autoscaler
+    release: {{ .Release.Name }}
+    heritage: {{ .Release.Service }}
+spec:
+  targetRef:
+    apiVersion: apps/v1
+    kind: Deployment
+    name: strimzi-cluster-operator
+  updatePolicy:
+    updateMode: {{ .Values.verticalPodAutoscaler.updateMode | quote }}
+  resourcePolicy:
+    containerPolicies:
+      - containerName: strimzi-cluster-operator
+        controlledResources:
+          - cpu
+          - memory
+{{- end }}

packaging/helm-charts/helm3/strimzi-kafka-operator/values.yaml

@@ -79,6 +79,14 @@ podDisruptionBudget:
   maxUnavailable:
   unhealthyPodEvictionPolicy: IfHealthyBudget
 
+verticalPodAutoscaler:
+  # If enabled, a VerticalPodAutoscaler resource will be created for the operator Deployment.
+  # Requires the VPA CRDs to be installed on the cluster.
+  enabled: false
+  # VPA update mode: Auto or Recreate restart pods to apply recommendations;
+  # Initial applies recommendations only at pod creation; Off disables updates.
+  updateMode: "Auto"
+
 operatorNetworkPolicy:
   # If enabled, this will generate a networkPolicy for the strimzi-operator.
   # This flag DOES NOT control operator generated networkPolicies!