apiVersion: apps/v1
kind: Deployment
metadata:
  name: dovecat
  labels:
    app: dovecat
spec:
  replicas: 1
  revisionHistoryLimit: 0
  selector:
    matchLabels:
      app: dovecat
      tier: imap
  strategy:
    type: Recreate
  template:
    metadata:
      app: dovecat
      tier: imap