I've 3 angular applications that are deployed on Kubernetes. I'm trying to run all 3 with just one hostname and different paths. Here is my ingress.

apiVersion: extensions/v1beta1
kind: Ingress
metadata:
  annotations:
    kubernetes.io/ingress.class: nginx
    nginx.ingress.kubernetes.io/rewrite-target: /$1
  name: test-ingress-deployment
  namespace: my-namespace
spec:
  tls:
  - hosts:
    - dns-name.eastus.cloudapp.azure.com
    secretName: aks-ingress-tls
  rules:
  - host: dns-name.eastus.cloudapp.azure.com
    http:
      paths:
      - backend:
          serviceName: ui-svc
          servicePort: 80
        path: /(.*)
      - backend:
          serviceName: ui-svc-one
          servicePort: 80
        path: /one/?(.*)
      - backend:
          serviceName: ui-svc-two
          servicePort: 80
        path: /two/?(.*)

All these 3 services are in different namespaces. I'm getting 503 for every endpoint I'm trying to hit, after applying ingress.