istio-lb.yaml

apiVersion: networking.istio.io/v1alpha3
kind: Gateway
metadata:
  name: sampleapp-gateway
spec:
  selector:
    istio: ingressgateway 
  servers:
  - port:
      number: 80
      name: http
      protocol: HTTP
    hosts:
    - "*"
---
apiVersion: networking.istio.io/v1alpha3
kind: VirtualService
metadata:
  name: sampleapp
spec:
  hosts:
  - "*"
  gateways:
  - sampleapp-gateway
  http:
  - route:
    - destination:
        host: sampleapp
---
apiVersion: networking.istio.io/v1alpha3
kind: VirtualService
metadata:
  name: sampleapp
spec:
  hosts:
  - "*"
  gateways:
  - sampleapp-gateway
  http:
  - route:
    - destination:
        host: sampleapp
        subset: v1
      weight: 80
    - destination:
        host: sampleapp
        subset: baseline
      weight: 10
    - destination:
        host: sampleapp
        subset: canary
      weight: 10
---
apiVersion: networking.istio.io/v1alpha3
kind: DestinationRule
metadata:
  name: sampleapp
spec:
  host: sampleapp
  subsets:
  - name: v1
    labels:
      version: prod
  - name: baseline
    labels:
      version: sampleapp-baseline
  - name: canary
    labels:
      version: sampleapp-canary