```
apiVersion: extensions/v1beta1
kind: Ingress
metadata:
  name: ingress-demo
  namespace:default
  annitations:
    kubernetes.io/ingress.class: nginx
spec:
  rules:
  - host: demo.test.com
    http:
      paths:
      - path: / # 默认是/，可以是其他路径
        backend:
          serviceName: svc-demo
          servicePort: 80
```