nginx as load balancer in kubernetes with htpasswd

nginx-kibana-deplyment.yml

apiVersion: apps/v1
kind: Deployment
metadata:
  name: nginx-kibana-deployment
  labels:
    app: nginx-kibana
    env: prod
spec:
  replicas: 1
  selector:
    matchLabels:
      app: nginx-kibana
      env: prod
  template:
    metadata:
      labels:
        app: nginx-kibana
        env: prod
    spec:
      containers:
      - name: nginx-container
        image: nginx
        imagePullPolicy: IfNotPresent
        resources:
          requests:
            memory: "128Mi"
            cpu: "200m"
          limits:
            memory: "256Mi"
            cpu: "200m"
        volumeMounts:
          - name: nginx-conf
            mountPath: /etc/nginx/nginx.conf
            subPath: nginx.conf
          - name: nginx-admin-htpasswd
            mountPath: /etc/nginx/admin-htpasswd
            subPath: admin-htpasswd
        ports:
        - containerPort: 80
      volumes:
        - name: nginx-conf
          configMap:
           name: nginx-conf
        - name: nginx-admin-htpasswd
          configMap:
           name: nginx-admin-htpasswd
---
kind: Service
apiVersion: v1
metadata:
  name: nginx-kibana-service
  labels:
    app: nginx-kibana
    env: prod
spec:
  selector:
    app: nginx-kibana
    env: prod
  ports:
  - name: kibana-ui
    protocol: TCP
    port: 80
    targetPort: 80
    nodePort: 30081
  type: NodePort

nginx.conf

events { }
http 
{
    upstream kibana 
    {
        server 192.168.0.183:30063;
        server 192.168.0.184:30063;
        server 192.168.0.185:30063;
    }

    server 
    {
    listen 80;
    location / {
        auth_basic           "kibana admin";
        auth_basic_user_file /etc/nginx/admin-htpasswd;
        proxy_pass http://kibana;
    }
    }
}

Create admin-htpasswd auth file with htpasswd for admin user.

yum install httpd-tools

htpasswd -c admin-htpasswd admin

-Create config maps in kubernetes for above files
( nginx.conf, admin-htpasswd )

kubectl create configmap nginx-conf --from-file nginx.conf

kubectl create configmap nginx-admin-htpasswd --from-file admin-htpasswd