AWS - Network Load Balancer - NLB

Step-01: Create AWS Network Load Balancer Kubernetes Manifest & Deploy

• 04-NetworkLoadBalancer.yml

apiVersion: v1
kind: Service
metadata:
  name: nlb-usermgmt-restapp
  labels:
    app: usermgmt-restapp
  annotations:
    service.beta.kubernetes.io/aws-load-balancer-type: nlb    # To create Network Load Balancer
spec:
  type: LoadBalancer # Regular k8s Service manifest with type as LoadBalancer
  selector:
    app: usermgmt-restapp     
  ports:
  - port: 80
    targetPort: 8095

• Deploy all Manifest

# Deploy all manifests
kubectl apply -f kube-manifests/

# List Services (Verify newly created NLB Service)
kubectl get svc

# Verify Pods
kubectl get pods

Step-02: Verify the deployment

• Verify if new CLB got created
  • Go to Services -> EC2 -> Load Balancing -> Load Balancers
    • CLB should be created
    • Copy DNS Name (Example: a85ae6e4030aa4513bd200f08f1eb9cc-7f13b3acc1bcaaa2.elb.us-east-1.amazonaws.com)
  • Go to Services -> EC2 -> Load Balancing -> Target Groups
    • Verify the health status, we should see active.
• Access Application

# Access Application
http://<NLB-DNS-NAME>/usermgmt/health-status

Step-03: Clean Up

# Delete all Objects created
kubectl delete -f kube-manifests/

# Verify current Kubernetes Objects
kubectl get all