Kubernetes ingress nginx route to same path (different service; different port) - nginx

Question

I have some simple deployments, pods, services and nginx ingress in Kubernetes. I want to use ingress to route to the services (cluster-ip).
However, there are 2 services for 2 pods with the same path (i.e /abc/def). After I applied the ingress.yaml file, I got an error message saying "nginx: [emerg] duplicate location "/abc/def/" in /tmp/nginx/nginx-cfg728288520:2893".
May I know how to let ingress accepts the same paths with different service and different port?
Here is the ingress.yaml file:
apiVersion: networking.k8s.io/v1
kind: Ingress
metadata:
annotations:
kubernetes.io/ingress.class: nginx
nginx.ingress.kubernetes.io/use-regex: "true"
name: ingress-nginx-default
namespace: default
spec:
rules:
- host:
http:
paths:
- path: /abc/def/
pathType: Prefix
backend:
service:
name: service1
port:
number: 8090
- path: /abc/def
backend:
service:
name: service2
port:
number: 8068
pathType: Prefix
ingressClassName: nginx

Answer 1

"nginx: [emerg] duplicate location "/abc/def/" in /tmp/nginx/nginx-cfg728288520:2893". This error indicates the same host with two same paths which is a duplicate location.
You can use simple fanout based on path or name based virtual hosting.
In order to do this you need to have two hosts that need to be mentioned in the ingress.
based on your example you'd most likely want to have something like foo.bar.com and bar.foo.com. Here's the example from the Kubernetes docs:
apiVersion: extensions/v1beta1
kind: Ingress
metadata:
name: name-virtual-host-ingress
spec:
rules:
- host: foo.bar.com
http:
paths: #path_name
- backend:
serviceName: service1
servicePort: 80
- host: bar.foo.com
http:
paths: #path_name
- backend:
serviceName: service2
servicePort: 80