Guide to Create Elastic Load Balancer in AWS

This article gives high-level overview of how to create Elastic Application Load Balancer in AWS.

Perquisite

• Two EC2 Instances in running state.

To understand how to create an EC2 instance refer, Create an AWS EC2 Instance. This article provides high-level… | by Venkatesh Jujarao | Medium

Create Target Group

• Go to ec2/home → Target Group and click on create target group.
• Select target type → Instances.

• Provide the name, protocol and VPC group.

• Provide the health check endpoint. This is nothing but the endpoint running on your EC2 instance which will be used to do a health check and identify the status of the application.

• Click next and register the target. Select the EC2 instance and click on the include as pending below.

• Click on Create Group

• Follow the same process and create another target group (select 2nd EC2 instance while registering the target).
• Now we can see we have two target groups.

Create a Load Balancer

• Go to ec2/home → Load Balancer, click on create Load Balancer
• Select type of Load Balancer, here we are going with application load balancer. Click on create.

• Provide the name of load balancer, select scheme.

• Select network mapping and VPC.

• Select security group.

• Select listener and target group.

• Review the changes and click Create Load balancer button.

Configure Load Balancer Rule Set

• Once Load Balancer is in active state, setup up the rule.

• Click Save.

Summary

In this article we understood how to create a load balancer. With below video we can see how load balancer is working.