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Create the autoscaling group in AWS

In this article, we will create the autoscaling group in AWS.

Purpose

The autoscaling group increases or decreases the EC2 instance based on the increased or decreased load.

Steps of creating the autoscaling group

We will work on the following steps for creating the autoscaling group

Create an EC2 instance.
Create the AMI.
Create the launch configuration.
Create the autoscaling group.
Checking the auto scaling group.

Let us work on each step.

Create an EC2 instance

First, create an EC2 instance. You can follow this link to create an EC2 instance.

Create the AMI

Second step is to create an AMI. You can follow this link to create an AMI.

Create the launch configuration

To create a launch configuration, click on the "Launch Configurations" menu.

Picture showing the Launch Configurations menu option

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A screen appears with the list of launch configurations. Click on the "Create launch configuration" button.

Picture showing the list screen of the launch configuration

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The create launch configuration screen will appear. Enter the name and select the AMI.

Picture showing the create launch configuration screen for entering the name and AMI

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Scroll down to select the instance.

Picture showing the create launch configuration screen for selecting the instance type

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Please note that the instance type should be either the same as that of AMI or with the same architecture.

Scroll down to select the key pair and click on the "Create launch configuration" button.

Picture showing the Create launch configuration button for creating the new launch configuration

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The launch configuration is created.

Create the autoscaling group

To create the autoscaling group, select the launch configuration and click on the "Actions" → "Create Auto Scaling group".

Picture showing the Create Auto Scaling group menu option

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In the first step, enter the autoscaling group name and launch configuration.

Picture showing the Create Auto Scaling group screen for entering the group name and launch configuration

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Click on the "Next" button. In the next screen, select the VPC and the subnet.

Picture showing the configure settings section of the Create Auto Scaling group screen

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Click on the "Next" button. In the next screen, select the advanced configuration options. For this article, I am not doing any change.

Picture showing the configure advanced options section of the Create Auto Scaling group screen

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Click on the "Next" button. In the next screen, you can specify the group size.

Picture showing the configure group size and scaling policies section of the Create Auto Scaling group screen

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Click on the "Next" button. In the next screen, you can add a notification or you can skip this step.

Picture showing the Add Notifications section of the Create Auto Scaling group screen

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Click on the "Next" button. The review screen will appear. Review the information and click on the "Create Auto scaling group" button.

Picture showing the Create auto scaling group for creating the new autoscaling group

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Checking the auto scaling group

Once the auto scaling group is created, you can see the status as "Updating Capacity"

Picture showing the status of the autoscaling group as updating capacity

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Once the capacity is updated, you can see 2 EC2 instances created.

Picture showing the EC2 instances created based on the desired capacity of the autoscaling group

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Posted By -	Karan Gupta

Posted On -	Tuesday, October 26, 2021

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