ingress-nginx-helm/charts/ingress-nginx/templates/controller-poddisruptionbudget.yaml

# PDB is not supported for DaemonSets.
# https://github.com/kubernetes/kubernetes/issues/108124
{{- if eq .Values.controller.kind "Deployment" }}
{{- $replicas := .Values.controller.replicaCount }}
{{- if and .Values.controller.autoscaling.enabled (not .Values.controller.keda.enabled) }}
{{- $replicas = .Values.controller.autoscaling.minReplicas }}
{{- else if and .Values.controller.keda.enabled (not .Values.controller.autoscaling.enabled) }}
{{- $replicas = .Values.controller.keda.minReplicas }}
{{- end }}
{{- if gt ($replicas | int) 1 }}
apiVersion: {{ ternary "policy/v1" "policy/v1beta1" (semverCompare ">=1.21.0-0" .Capabilities.KubeVersion.Version) }}
kind: PodDisruptionBudget
metadata:
  labels:
    {{- include "ingress-nginx.labels" . | nindent 4 }}
    app.kubernetes.io/component: controller
    {{- with .Values.controller.labels }}
    {{- toYaml . | nindent 4 }}
    {{- end }}
  name: {{ include "ingress-nginx.controller.fullname" . }}
  namespace: {{ include "ingress-nginx.namespace" . }}
  {{- if .Values.controller.annotations }}
  annotations: {{ toYaml .Values.controller.annotations | nindent 4 }}
  {{- end }}
spec:
  selector:
    matchLabels:
      {{- include "ingress-nginx.selectorLabels" . | nindent 6 }}
      app.kubernetes.io/component: controller
  {{- if and .Values.controller.minAvailable (not (hasKey .Values.controller "maxUnavailable")) }}
  minAvailable: {{ .Values.controller.minAvailable }}
  {{- else if .Values.controller.maxUnavailable }}
  maxUnavailable: {{ .Values.controller.maxUnavailable }}
  {{- end }}
  {{- if .Values.controller.unhealthyPodEvictionPolicy }}
  unhealthyPodEvictionPolicy: {{ .Values.controller.unhealthyPodEvictionPolicy }}
  {{- end }}
{{- end }}
{{- end }}