AKS Ingress Nginx external IP unreachable - kubernetes-ingress

Question

I m using helm charts to deploy an app in Azure Kubernetes Service with Ingress-nginx
My helm charts used to work fine last month, but when I created something new with my charts, the public IP of my ingress nginx is not working anymore.
PS C:\Zetaris\HelmDeployment> kubectl get ingress -n zetaris
NAME CLASS HOSTS ADDRESS PORTS AGE
xx-gui-nginx <none> uisaas.xxxxxxxxxxxxxx 20.167.72.8 80, 443 53m
xx-rest-nginx <none> restsaas.xxxxx 20.167.72.8 80, 443 55m
Here is my yaml:
apiVersion: networking.k8s.io/v1
kind: Ingress
metadata:
name: lightning-gui-nginx
annotations:
kubernetes.io/ingress.class: "nginx"
cert-manager.io/cluster-issuer: letsencrypt-enterprise
nginx.ingress.kubernetes.io/configuration-snippet: |
more_set_headers "server: hide";
more_set_headers "X-Content-Type-Options: nosniff";
more_set_headers "X-Frame-Options: DENY";
more_set_headers "X-Xss-Protection: 1";
more_set_headers "referrer-policy: no-referrer";
more_set_headers "Content-Security-Policy: frame-ancestors 'none'";
spec:
tls:
- hosts:
- {{ .Values.ingress.guiurl }}
secretName: tls-secret-gui
rules:
- host: {{ .Values.ingress.guiurl }}
http:
paths:
- path: /
pathType: Prefix
backend:
service:
name: xx-gui-svc
port:
number: 80
---
apiVersion: v1
kind: Service
metadata:
name: xx-gui-svc
namespace: {{ .Values.namespace }}
spec:
ports:
- port: 80
targetPort: 9001
type: ClusterIP
selector:
app: {{ .Values.deployment.name }}
I can reach my app on port 9001 if I port-forward directly my pod.
The error is coming from the IP:
telnet 20.167.72.8 80
Connecting To 20.167.72.8...Could not open connection to the host, on port 80: Connect failed
As far as i know, there no IP restrictions or firewalls in AKS.
Do you have any idea on why would my ingress IP would not be reachable on internet?
Tried to create another app with same helm chart, uninstall and reinstall ingress service, public IP is never reachable.

Answer 1

Never mind I found the issue, needed to add:
--set controller.service.annotations."service\.beta\.kubernetes\.io/azure-load-balancer-health-probe-request-path"=/healthz"
When creating the ingress-nginx