istio/src/istio-ingressgateway-pdb.yaml

apiVersion: policy/v1beta1
kind: PodDisruptionBudget
metadata:
  name: istio-ingressgateway
  namespace: istio-system
  labels:
    app: istio-ingressgateway
    istio: ingressgateway
    release: istio
spec:
  minAvailable: 1
  selector:
    matchLabels:
      app: istio-ingressgateway
      istio: ingressgateway
      release: istio