apiVersion: apps/v1
kind: Deployment
metadata:
  name: deployment
  labels:
    app: webserver
spec:
  replicas: 4
  strategy:
    rollingUpdate:
      maxSurge: 0
      maxUnavailable: 3
    type: RollingUpdate
  selector:
   matchLabels:
     app: webserver
  template:
   metadata:
    labels:
      app: webserver
   spec:
     containers:
      - name: nginxpod
        image: nginx:1.22
        ports:
         - containerPort: 80