feat: add pdb and topologySpreadConstraints to helm chart

helm/templates/deployment.yaml

@@ -110,4 +110,7 @@ spec:
       {{ end -}}
       {{ if .Values.deployment.priorityClassName -}}
       priorityClassName: {{ .Values.deployment.priorityClassName }}
-      {{ end -}}
+      {{ end -}}
+      {{ if .Values.deployment.topologySpreadConstraints -}}
+      topologySpreadConstraints: {{ .Values.deployment.topologySpreadConstraints | toYaml | nindent 8 }}
+      {{ end -}}

helm/templates/pdb.yaml

@@ -0,0 +1,26 @@
+{{- if .Values.pdb.enabled -}}
+apiVersion: policy/v1
+kind: PodDisruptionBudget
+metadata:
+  name: {{ include "app.fullname" . }}
+  namespace: {{ .Release.Namespace }}
+  labels:
+    app.kubernetes.io/name: {{ include "app.name" . }}
+    app.kubernetes.io/instance: {{ .Release.Name }}
+    app.kubernetes.io/managed-by: Helm
+    app.kubernetes.io/version: {{ .Chart.AppVersion | quote }}
+    k8s-app: {{ include "app.name" . }}
+    helm.sh/chart: {{ include "chart.name-version" . }}
+    control-plane: controller
+spec:
+  selector:
+    matchLabels:
+      app.kubernetes.io/name: {{ include "app.name" . }}
+      app.kubernetes.io/instance: {{ .Release.Name }}
+  {{- with .Values.pdb.minAvailable }}
+  minAvailable: {{ . }}
+  {{- end }}
+  {{- with .Values.pdb.maxUnavailable }}
+  maxUnavailable: {{ . }}
+  {{- end }}
+{{- end -}}

helm/values.yaml

@@ -32,10 +32,11 @@ deployment:
   priorityClassName: ""
   # Number of replicas.
   replicas: 2
+  topologySpreadConstraints: []
 
 # If "installScope: cluster" then these labels will be applied to ClusterRole
 role:
- labels: {}
+  labels: {}
 
 metrics:
   service:
@@ -54,6 +55,11 @@ resources:
     memory: "128Mi"
     cpu: "100m"
 
+pdb:
+  enabled: false
+  minAvailable:
+  maxUnavailable:
+
 # log level for the controller
 log:
   level: info