apiVersion: networking.istio.io/v1alpha3
kind: Gateway
metadata: 
  name: nginx-gw
spec:
 selector:
    app: istio-ingressgateway
  servers:
  - port:
      number: 80
      name: http
      protocol: HTTP
hosts:
    - nginx.test.com
---
apiVersion: networking.istio.io/v1alpha3
kind: VirtualService
metadata:
  name: nginx-vs
spec:
  hosts:
  - nginx.test.com
  gateways:
  - nginx-gw
  http:
  - route:
    - destination:
        host: nginx-svc
---
apiVersion: v1
kind: Service
metadata:
name: nginx-svc
spec:
  ports:
  - port: 80
    protocol: TCP
    targetPort: 80
  selector:
app: nginx
  type: ClusterIP
---
apiVersion: apps/v1
kind: Deployment
metadata:
  labels:
    app: nginx
  name: nginx-deployment
spec:
  replicas: 1
  selector:
    matchLabels:
      app: nginx
  strategy:
    rollingUpdate:
      maxSurge: 25%
      maxUnavailable: 25%
    type: RollingUpdate
  template:
    metadata:
      labels:
app: nginx
    spec:
      containers:
        - image: 'nginx:latest'
          name: nginx-deployment