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Create An Application Load Balancer In AWS

In this article, we will create an application load balancer in AWS.

Steps

For creating the application load balancer, we will work on the following steps: -

Launch 2 EC2 instances with IIS enabled
Enable access of IIS home page over the internet
Create a target group
Create an application load balancer

So, let us get started.

Launch 2 EC2 Instances With IIS Enabled

First, launch 2 EC2 instances with EC2 enabled.

Enable Access Of IIS Home Page Over The Internet

Second step is to access the IIS home page over the internet. Please follow this link.

Create A Target Group

Create a target group. You can follow this link to create the target group. There are some things to consider while creating the target group.

Set the health check path as /index.html.

Picture showing specifying the health check path as index.html

Select the instance and click on the Include as pending below.

Picture showing including EC2 instances in pending health status using the Include as pending below button

Scroll down and click on the Create target group button.

Picture showing the Create target group button for creating the new target group

Create An Application Load Balancer

To create an application load balancer, click on the Create button of the application load balancer.

Picture showing selecting the load balancer in aws

A screen appears to enter the Load balancer name.

Picture showing entering the load balancer name in aws console

Scroll down to select the subnet.

Picture showing selecting the subnet for load balancer

Select at least 2 subnets. Here the region of the EC2 instances is us-east-2c. So, the same region should be selected for the load balancer as well.

Scroll down to the Listeners and routing section and select the target group.

Picture showing selecting the target group for load balancer

Scroll down to the bottom and click on the Create load balancer button.

Picture showing the Create load balancer button for creating the load balancer

Output

Once the load balancer is created, you can check the health status of the instances in the target groups.

Picture showing the health status of both the EC2 instances as healthy

If the status of the instances is Healthy, then your load balancer is ready. You can now check the load balancer using the DNS URL.

Picture showing the output of application load balancer in aws

Posted By -	Karan Gupta

Posted On -	Monday, November 1, 2021

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