make pdb configurable

Author: cbarbian-sap

chart/templates/pdb.yaml

@@ -1,13 +1,26 @@
+{{- if .Values.pdb.enabled }}
 {{- if ge (int .Values.replicaCount) 2 }}
 apiVersion: policy/v1
 kind: PodDisruptionBudget
 metadata:
   name: {{ include "reactivejob-operator.fullname" . }}
+  {{- with .Values.pdb.annotations }}
+  annotations:
+    {{- toYaml . | nindent 4 }}
+  {{- end }}
   labels:
     {{- include "reactivejob-operator.labels" . | nindent 4 }}
+    {{- with .Values.pdb.labels }}
+    {{- toYaml . | nindent 4 }}
+    {{- end }}
 spec:
-  minAvailable: 1
+  {{- if .Values.pdb.maxUnavailable }}
+  maxUnavailable: {{ .Values.pdb.maxUnavailable }}
+  {{- else }}
+  minAvailable: {{ .Values.pdb.minAvailable }}
+  {{- end }}
   selector:
     matchLabels:
       {{- include "reactivejob-operator.selectorLabels" . | nindent 6 }}
 {{- end }}
+{{- end }}

chart/values.yaml

@@ -47,6 +47,18 @@ resources:
     memory: 128Mi
     # -- CPU request
     cpu: 100m
+pdb:
+  # -- Whether to create a PodDisruptionBudget for the webhook
+  enabled: true
+  # -- Labels to set on the PodDisruptionBudget
+  labels: {}
+  # -- Annotations to set on the PodDisruptionBudget
+  annotations: {}
+  # -- Number of pods that are available after eviction as number or percentage (e.g. 50%)
+  # @default -- `"1"` (defaults to 1 if not specified)
+  minAvailable: "1"
+  # -- Number of pods that are unavailable after eviction as number or percentage (e.g: 50%); has higher precedence over `pdb.minAvailable`
+  maxUnavailable: ""
 webhook:
   certManager:
     # -- Whether to use cert-manager to manage webhook tls