emqx4.3/deploy/charts/emqx/templates/pdb.yaml

{{- if and (.Values.pdb.enabled) (.Capabilities.APIVersions.Has "policy/v1/PodDisruptionBudget") }}
apiVersion: policy/v1
kind: PodDisruptionBudget
metadata:
  name: {{ include "emqx.fullname" . }}-pdb
  namespace: {{ .Release.Namespace }}
  labels:
    app.kubernetes.io/name: {{ include "emqx.name" . }}
    helm.sh/chart: {{ include "emqx.chart" . }}
    app.kubernetes.io/instance: {{ .Release.Name }}
    app.kubernetes.io/managed-by: {{ .Release.Service }}
spec:
  maxUnavailable: {{ .Values.pdb.maxUnavailable }}
  selector:
    matchLabels:
      app.kubernetes.io/name: {{ include "emqx.name" . }}
      app.kubernetes.io/instance: {{ .Release.Name }}
{{- end }}