digital ocean: load balancer not working for flask app pods

Question

i am trying deploy a simple python flask application in digital ocean Kubernetes cluster using below deployment and service configuration. flask app is using 8080 port while running the code and same is used to expose through load balancer.

flask app

    if __name__ == '__main__':
        app.run(debug=True, host='0.0.0.0', port=8080)

deployment

    ubuntu@ubuntu-22lts:~$ cat deployment.yaml
    apiVersion: apps/v1
    kind: Deployment
    metadata:
      name: unit7-app-deploy
    spec:
      replicas: 2
      selector:
        matchLabels:
          app: unit-app
      template:
        metadata:
          labels:
            app: unit-app
        spec:
          containers:
          - name: unit-app
            image: <username>/flask-app:latest
            imagePullPolicy: IfNotPresent
            resources:
              limits:
                memory: "128Mi"
                cpu: "500m"
            ports:
            - containerPort: 8080

and service for load balance creation

    apiVersion: v1
    kind: Service
    metadata:
      name: unit7-app-service
    spec:
      selector:
        app: unit7-app-deploy
      ports:
      - port: 8080
        targetPort: 8080
        protocol: TCP
      type: LoadBalancer

Now I am trying to access my app through Kubernetes external IP and 8080 port which is not working. pods logs are showing that my flaks is running.

    ubuntu@ubuntu-22lts:~$ kubectl --kubeconfig=k8s-1-27-2-do-0-blr1-cluster1-kubeconfig.yaml logs -f unit7-app-deploy-6568dss8-ddsds
     * Serving Flask app 'run'
     * Debug mode: on
    WARNING: This is a development server. Do not use it in a production deployment. Use a production WSGI server instead.
     * Running on all addresses (0.0.0.0)
     * Running on http://127.0.0.1:8080
     * Running on http://10.244.0.214:8080

where am I wrong. Kindly help me.