Application not accessible using ingress but works with LoadBalancer GKE - kubernetes

Question

I am trying to configure a hello world application using ingress in GKE. I have been referring a GCP official documentation to deploy an application using Ingress.
Deploying an app using ingress
But this does not work i have tried to refer several documents but none of those work. I have installed the ingress controller in my kubernetes cluster.
kubectl get svc -n ingress-nginx returns below output
NAME TYPE CLUSTER-IP EXTERNAL-IP PORT(S)
AGE
ingress-nginx-controller LoadBalancer 10.125.177.232 35.232.139.102 80:31835/TCP,443:31583/TCP 7h24m
kubectl get pods-n ingress-nginx returns
NAME READY STATUS RESTARTS AGE
ingress-nginx-admission-create-jj72r 0/1 Completed 0 7h24m
ingress-nginx-admission-patch-pktz6 0/1 Completed 0 7h24m
ingress-nginx-controller-5cb8d9c6dd-vptkh 1/1 Running 0 7h24m
kubectl get ingress returns below output
NAME CLASS HOSTS ADDRESS PORTS AGE
ingress-resource <none> 35.232.139.102.nip.io 34.69.2.173 80 7h48m
kubectl get pods returns below output
NAME READY STATUS RESTARTS AGE
hello-app-6d7bb985fd-x5qpn 1/1 Running 0 43m
kubect get svc returns below output
NAME TYPE CLUSTER-IP EXTERNAL-IP PORT(S) AGE
hello-app ClusterIP 10.125.187.239 <none> 8080/TCP 43m
Ingress resource yml file used
apiVersion: networking.k8s.io/v1
kind: Ingress
metadata:
name: ingress-resource
annotations:
kubernetes.io/ingress.class: "nginx"
nginx.ingress.kubernetes.io/ssl-redirect: "false"
spec:
rules:
- host: 35.232.139.102.nip.io
http:
paths:
- pathType: Prefix
path: "/hello"
backend:
service:
name: hello-app
port:
number: 8080
Can someone tell me what i am doing wrong ? When i try to reach the application its not working.

Answer 1

So I have installed Ingress-controller and used ingress controller ip as the host in my ingress file.
apiVersion: networking.k8s.io/v1
kind: Ingress
metadata:
name: ingress-resource
annotations:
kubernetes.io/ingress.class: "nginx"
nginx.ingress.kubernetes.io/ssl-redirect: "false"
spec:
rules:
- host: "35.232.139.102.nip.io"
http:
paths:
- pathType: Prefix
path: "/hello"
backend:
service:
name: hello-app
port:
number: 8080
Issue here was I forgot to add the IP from which I was accessing the application. When you create a GKE cluster there will be a firewall with the cluster-name-all in this firewall you will need to add your IP address of the machine from which you are trying to access the application. Also ensure that the port number is also exposed in my case both were not provided hence it was failing.