I want to deploy a gRPC service to Azure Kubernetes Service. I have already depoyed RESTful services using Helm charts but gRPC service is throwing "connection timed out" error.

I have already tried everything said in the NGINX and HELM documentation but nothing worked. The certificate is self signed. I have tried all permutation and combination of annotations :p

Service.yaml

apiVersion: v1
kind: Service
metadata:
  name: {{ template "fullname" . }}
  labels:
    app: {{ template "fullname" . }}
    chart: "{{ .Chart.Name }}-{{ .Chart.Version }}"
    release: "{{ .Release.Name }}"
    heritage: "{{ .Release.Service }}"
spec:
  ports:
  - port: 50051
    protocol: TCP
    targetPort: 50051
    name: grpc
  selector:
    app: {{ template "fullname" . }}
  type: NodePort

ingress.yaml

{{ if .Values.ingress.enabled }}
apiVersion: extensions/v1beta1
kind: Ingress
metadata:
  name: {{ template "fullname" . }} 
  annotations:
    kubernetes.io/ingress.class: nginx
    nginx.ingress.kubernetes.io/grpc-backend: "true"
    nginx.org/grpc-services: {{ template "fullname" . }}
    nginx.ingress.kubernetes.io/ssl-redirect: "true"
    nginx.ingress.kubernetes.io/rewrite-target: /$2
spec:
  tls:
    secretName: aks-ingress-tls
  rules:
  - http:
      proto: h2
      paths:
      - backend:
          serviceName: {{ template "fullname" . }}
          servicePort: grpc
          proto: h2
        path: /{servicename}-grpc(/|$)(.*)
{{ end }}

Tried this also- still not working-

{{ if .Values.ingress.enabled }}
apiVersion: extensions/v1beta1
kind: Ingress
metadata:
  name: {{ template "fullname" . }} 
  annotations:
    kubernetes.io/ingress.class: nginx
    nginx.ingress.kubernetes.io/ssl-redirect: "true"
    nginx.ingress.kubernetes.io/backend-protocol: "GRPC"
    nginx.ingress.kubernetes.io/rewrite-target: /$2
spec:
  tls:
  - secretName: aks-ingress-tls
  rules:
  - http:
      paths:
      - backend:
          serviceName: {{ template "fullname" . }}
          servicePort: 50051
        path: /servicename-grpc(/|$)(.*)
{{ end }}