nginx-cookie-canary.yaml

apiVersion: extensions/v1beta1
kind: Ingress
metadata:
  annotations:
    ... your annotations here  
    nginx.ingress.kubernetes.io/canary: "true"
    nginx.ingress.kubernetes.io/canary-by-cookie: "inBeta"   
  name: canary-nginx
  labels:
    env: prod
  namespace: prod
spec:
  rules:
    - host: yourapp.example.com 
      http:
        paths:
         - backend:
             serviceName: yourapp-canary-service
             servicePort: 9000
           path: /