How to access service in AKS

Question

Hello there,

I am a beginner with AKS. I am trying to build a system with a gateway. I want to access the gateway from the internet and have tried adding a LoadBalancer for the Ingress, but it's not working. The files are as follows:

apiVersion: apps/v1
kind: Deployment
metadata:
  name: gateway
  labels:
    app: gateway
spec:
  replicas: 1
  selector:
    matchLabels:
      app: gateway
  strategy:
    type: RollingUpdate
    rollingUpdate:
      maxSurge: 3
  template:
    metadata:
      labels:
        app: gateway
    spec:
      containers:
        - name: gateway
          image: xuanhoangf/gateway:lastest
---
apiVersion: networking.k8s.io/v1
kind: Ingress
metadata:
  name: gateway-ingress
  annotations:
    nginx.ingress.kubernetes.io/proxy-body-size: "0"
    nginx.ingress.kubernetes.io/proxy-read-timeout: "600"
    nginx.ingress.kubernetes.io/proxy-send-timeout: "600"
    nginx.ingress.kubernetes.io/ssl-passthrough: "false"
spec:
  ingressClassName: nginx
  tls:
    - secretName: gateway-certificate
  rules:  
    - host: enkai.id.vn
      http:
        paths:
          - path: /
            pathType: Prefix
            backend:
              service:
                name: gateway
                port:
                  number: 8000
---
apiVersion: v1
kind: Service
metadata:
  name: gateway-front
spec:
  type: LoadBalancer
  ports:
  - port: 80
  selector:
    app: gateway-ingress

Answer 1

You've connected the objects SERVICE -> INGRESS -> DEPLOYMENT.
This is incorrect.

It should be INGRESS -> SERVICE -> DEPLOYMENT.

As such it's not the Service that should be of type load balancer, your Ingress controller (Nginix) will already have a Public IP and Load balancer created. Your ingress object is what creates that configuration with the controller.

You don't require Ingress to expose your service, you can continue to do what you've done with having a type LoadBalancer, but you will need to change the app selector to that of your deployment. SERVICE -> DEPLOYMENT