add a simple PDB if the replicaCount > 1

charts/nfs-subdir-external-provisioner/Chart.yaml

@@ -3,7 +3,7 @@ appVersion: 4.0.2
 description: nfs-subdir-external-provisioner is an automatic provisioner that used your *already configured* NFS server, automatically creating Persistent Volumes.
 name: nfs-subdir-external-provisioner
 home: https://github.com/kubernetes-sigs/nfs-subdir-external-provisioner
-version: 4.0.17
+version: 4.0.18
 kubeVersion: ">=1.9.0-0"
 sources:
 - https://github.com/kubernetes-sigs/nfs-subdir-external-provisioner

charts/nfs-subdir-external-provisioner/templates/poddisruptionbudget.yaml

+{{ if gt .Values.replicaCount 1.0}}
+apiVersion: policy/v1
+kind: PodDisruptionBudget
+metadata:
+  labels:
+    {{- include "nfs-subdir-external-provisioner.labels" . | nindent 4 }}
+  name: {{ template "nfs-subdir-external-provisioner.fullname" . }}
+  namespace: {{ .Release.Namespace }}
+spec:
+  maxUnavailable: 1
+  selector:
+    matchLabels:
+      {{- include "nfs-subdir-external-provisioner.selectorLabels" . | nindent 6 }}
+{{ end }}