Create Network Load Balancer

Creating an NLB

In the EC2 interface, find Load Balancer.

• Click Create load balancer

Here, we will select Network Load Balancer.

Configure the following details:

• Name: imga-nlb
• Scheme: Internal
• Load balancer IP address type: IPv4

In the Network mapping section:

• VPC: select production-vpc
• Availability Zones: ap-southeast-1a
  • Subnet: select the private subnet
  • IPv4 Address: select Assigned from CIDR 10.0.128.0/20

For Security groups, select the SG we created in previous steps. Below that, in the Listeners and routing section, the Load Balancer needs to know where to forward the requests via a Target Group.

Now we will create a new Target Group:

• Protocol: TCP
• Port: 80

Click the Create target group link, which will take us to the target group creation interface.

• Choose a target type: Instances
• Name: prod-ec2

• Protocol: TCP
• Port: 80
• IP address type: IPv4
• VPC: production-vpc
• Health checks: configure as shown in the image

Next, click Next. At this point, we need to add the EC2 instance in the production environment to the newly created target group.

• Select the imga-server EC2 instance
• Click Include as pending below
• Click Create target group

The target group has been successfully created and the target added.

Review the configurations. Once confirmed, click Create load balancer.