ingress-nginx-helm/charts/ingress-nginx/templates/default-backend-poddisruptionbudget.yaml

{{- if gt (.Values.defaultBackend.replicaCount | int) 1 }}
apiVersion: policy/v1beta1
kind: PodDisruptionBudget
metadata:
  labels:
    {{- include "nginx-ingress.labels" . | nindent 4 }}
    app.kubernetes.io/component: {{ .Values.defaultBackend.name | quote }}
  name: {{ template "nginx-ingress.defaultBackend.fullname" . }}
spec:
  selector:
    matchLabels:
      {{- include "nginx-ingress.selectorLabels" . | nindent 6 }}
      app.kubernetes.io/component: {{ .Values.defaultBackend.name | quote }}
  minAvailable: {{ .Values.defaultBackend.minAvailable }}
{{- end }}