I installed the ingress controller on my aks using the helm install. I also created an ingress rule for my service:

apiVersion: networking.k8s.io/v1
kind: Ingress
metadata:
  name: my-demo-ingress
  namespace: my-demo
  annotations:
    nginx.ingress.kubernetes.io/ssl-redirect: "false"
    nginx.ingress.kubernetes.io/use-regex: "true"
    nginx.ingress.kubernetes.io/rewrite-target: /$2
spec:
  ingressClassName: nginx
  rules:
  - host: mydemoingress.com 
    http:
      paths:
      - path: /(.*)
        pathType: Prefix
        backend:
          service:
            name: api-gateway
            port: 
              number: 8080
    

When I deployed above ingress rule, i notice that my Backends has no IP as seen below api-gateway:8080 ():

**kubectl describe ing hcl-appscan-sast-gateway-ingress -n hcl-appscan-sast**
Name:             my-demo-ingress
Labels:           app.kubernetes.io/managed-by=Helm
Namespace:        my-demo
Address:          
Default backend:  default-http-backend:80 (<error: endpoints "default-http-backend" not found>)
Rules:
  Host            Path  Backends
  ----            ----  --------
  mydemoingress.com  
                  /(.*)   **api-gateway:8080 (<none>)**
Annotations:     
                  nginx.ingress.kubernetes.io/rewrite-target: /$2
                  nginx.ingress.kubernetes.io/ssl-redirect: false
                  nginx.ingress.kubernetes.io/use-regex: true
Events:
  Type    Reason  Age    From                      Message
  ----    ------  ----   ----                      -------
  Normal  Sync    4m34s  nginx-ingress-controller  Scheduled for sync
  Normal  Sync    4m34s  nginx-ingress-controller  Scheduled for sync  

No IP address gets assigned to the ingress controller.

When i however try this same setup on my local k3s setup, the IP is assigned correctly. Please what am i doing wrong?