Ingress-nginx: Unable to specify a rewrite-path based on service path

[iakko]

I've google a lot about this and I couldn't find nothing useful to solve my issue.

I need to serve two different type of services with the same hostname, differentiating them by the URI:

Frontend: https://app.example.com/
APIs: https://app.example.com/api/

I have two different Kubernetes services running: a frontend (a SPA with Angular) and a backend (a collection of REST APIs).

Those two services are exposed on different internal context paths, like this:

Frontent: http://frontend:80/static/index.html
Backend http://backend:8080/services/

The flow I need is the following:

https://app.example.com/index.html -> http://frontend:80/static/index.html
https://app.example.com/api/login -> http://backend:8080/services/login

Using the rewrite-target annotation is not enough, because it's applied to all the backend services defined in the paths. Basically, I would need a specific rewrite-path for each path listed under the same host. I need the Nginx Ingress to allow me to differentiate the rewrite-path for each service.

To give a better idea using pseudo-code, this is what I would like to achieve.

apiVersion: extensions/v1beta1
kind: Ingress
metadata:
  name: app-ingress
  namespace: default
  annotations:
    kubernetes.io/ingress.class: nginx
    nginx.ingress.kubernetes.io/rewrite-target: /
spec:
  rules:
  - host: app.example.org
    http:
      paths:
      - path: /
        backend:
          serviceName: frontend
          servicePort: 8080
          serviceContext: /static/ <-- Desideratum
      - path: /api/
        backend:
          serviceName: backend
          servicePort: 8080
          serviceContext: /services/ <-- Desideratum
  tls:
  - hosts:
    - app.example.org
    secretName: my_secret

I'm using Kubernetes version 1.10.5 on Azure.

Thanks a lot!

[aledbf]

Closing. You can achieve this creating two different ingresses for the same host, having different paths and applying the required rewrite-target

[iakko]

Omg, I didn't figure it out!
Worked, thanks :)

[christiansaiki]

Hi @iakko and @aledbf can you please share an example of these two different ingresses for the same host? I think that I need something like that for my company's project.
Thanks in advance

[uncle-greg]

@iakko @alanbover I would also love an example for this.