samples/bookinfo/networking/egress-rule-google-apis.yaml

apiVersion: networking.istio.io/v1alpha3
kind: ServiceEntry
metadata:
  name: googleapis
spec:
  hosts:
  - www.googleapis.com
  ports:
  - number: 80
    name: http
    protocol: HTTP
  - number: 443
    name: https
    protocol: HTTPS
  resolution: DNS
---
apiVersion: networking.istio.io/v1alpha3
kind: VirtualService
metadata:
  name: rewrite-port-for-googleapis
spec:
  hosts:
  - www.googleapis.com
  http:
  - match:
    - port: 80
    route:
    - destination:
        host: www.googleapis.com
        port:
          number: 443
---
apiVersion: networking.istio.io/v1alpha3
kind: DestinationRule
metadata:
  name: originate-tls-for-googleapis
spec:
  host: www.googleapis.com
  trafficPolicy:
    loadBalancer:
      simple: ROUND_ROBIN
    portLevelSettings:
    - port:
        number: 443
      tls:
        mode: SIMPLE # initiates HTTPS when accessing www.googleapis.com