alertmanager-podDisruptionBudget.yaml

apiVersion: policy/v1beta1
kind: PodDisruptionBudget
metadata:
  labels:
    app.kubernetes.io/component: alert-router
    app.kubernetes.io/name: alertmanager
    app.kubernetes.io/part-of: kube-prometheus
    app.kubernetes.io/version: 0.22.2
  name: alertmanager-main
  namespace: monitoring
spec:
  maxUnavailable: 1
  selector:
    matchLabels:
      alertmanager: main
      app.kubernetes.io/component: alert-router
      app.kubernetes.io/name: alertmanager
      app.kubernetes.io/part-of: kube-prometheus