I am trying to configure an additional layer of Sticky Session to my current Kubernetes architecture. Instead of routing every request through the main LoadBalancer service, I want to route the requests through an upper layer of nginx sticky session. I am following the guide on https://kubernetes.github.io/ingress-nginx/examples/affinity/cookie/

I am using Azure Cloud for my cluster deployment. Previously, using a Service with LoadBalancer type would automatically generate an external IP address for users to connect to my cluster. Now I need to configure the static IP address for my users to connect to, with the nginx ingress in place. How can I do so? I followed the guide here - https://github.com/kubernetes/ingress-nginx/tree/master/docs/examples/static-ip but the external address of the Ingress is still empty!!

What did I do wrongly?

# nginx-sticky-service.yaml

apiVersion: v1
kind: Service
metadata:
  name: nginx-ingress-lb
  labels:
    app.kubernetes.io/name: ingress-nginx
    app.kubernetes.io/part-of: ingress-nginx
spec:
  externalTrafficPolicy: Local
  type: LoadBalancer
  ports:
  - port: 80
    name: http
    targetPort: 80
  - port: 443
    name: https
    targetPort: 443
  selector:
    # Selects nginx-ingress-controller pods
    app.kubernetes.io/name: ingress-nginx
    app.kubernetes.io/part-of: ingress-nginx

# nginx-sticky-controller.yaml

apiVersion: apps/v1
kind: Deployment
metadata:
  name: nginx-ingress-controller
  labels:
    app.kubernetes.io/name: ingress-nginx
    app.kubernetes.io/part-of: ingress-nginx
spec:
  replicas: 1
  selector:
    matchLabels:
      app.kubernetes.io/name: ingress-nginx
      app.kubernetes.io/part-of: ingress-nginx
  template:
    metadata:
      labels:
        app.kubernetes.io/name: ingress-nginx
        app.kubernetes.io/part-of: ingress-nginx
    spec:
      terminationGracePeriodSeconds: 60
      containers:
      - image: quay.io/kubernetes-ingress-controller/nginx-ingress-controller:0.31.0
        name: nginx-ingress-controller
        ports:
        - containerPort: 80
          hostPort: 80
        - containerPort: 443
          hostPort: 443
        resources:
          limits:
            cpu: 0.5
            memory: "0.5Gi"
          requests:
            cpu: 0.5
            memory: "0.5Gi"
        env:
          - name: POD_NAME
            valueFrom:
              fieldRef:
                fieldPath: metadata.name
          - name: POD_NAMESPACE
            valueFrom:
              fieldRef:
                fieldPath: metadata.namespace
        args:
        - /nginx-ingress-controller
        - --publish-service=$(POD_NAMESPACE)/nginx-ingress-lb

# nginx-sticky-server.yaml

apiVersion: networking.k8s.io/v1beta1
kind: Ingress
metadata:
  name: ingress-nginx
  annotations:
    kubernetes.io/ingress.class: "nginx"
    nginx.ingress.kubernetes.io/affinity: "cookie"
    nginx.ingress.kubernetes.io/session-cookie-name: "nginx-sticky-server"
    nginx.ingress.kubernetes.io/session-cookie-expires: "172800"
    nginx.ingress.kubernetes.io/session-cookie-max-age: "172800"
    nginx.ingress.kubernetes.io/ssl-redirect: "false"
    nginx.ingress.kubernetes.io/affinity-mode: persistent
    nginx.ingress.kubernetes.io/session-cookie-hash: sha1
spec:
  rules:
  - http:
      paths:
      - backend:
          # This assumes http-svc exists and routes to healthy endpoints.
          serviceName: my-own-service-master
          servicePort: http