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Thu Kha Kyawe
Thu Kha Kyawe

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Day 7.Change EC2 Instance Type

#aws #100daysofcloudaws #2025

Lab Information

During the migration process, the Nautilus DevOps team created several EC2 instances in different regions. They are currently in the process of identifying the correct resources and utilization and are making continuous changes to ensure optimal resource utilization. Recently, they discovered that one of the EC2 instances was underutilized, prompting them to decide to change the instance type. Please make sure the Status check is completed (if its still in Initializing state) before making any changes to the instance.

1) Change the instance type from t2.micro to t2.nano for nautilus-ec2 instance.

2) Make sure the ec2 instance nautilus-ec2 is in running state after the change.

Lab Solutions

Step-by-Step Instructions (AWS Console)

  1. Log in to the AWS Console

Use your provided console URL and credentials.
Make sure region = us-east-1.

  1. Open the EC2 Page

Search EC2 in the AWS services search bar.

  1. Locate the Instance

In the left navigation menu:

Click Instances

Find the instance named nautilus-ec2

Verify:

Instance state: must be running

Status checks: should show 2/2 checks passed
If it still says Initializing, wait until it passes.

  1. Stop the Instance

EC2 instance type cannot be changed while running (for EBS-backed instances).

Select nautilus-ec2

Click Instance state → Stop instance

Confirm "Stop"

Wait until the status changes to stopped.

  1. Change the Instance Type

Once the instance is stopped:

Select the instance

Click Actions → Instance settings → Modify instance type

Choose:

Instance type: t2.nano

Click Apply or Save

  1. Start the Instance

Select the instance

Click Instance state → Start instance

Wait until:

State: Running

Status checks: Pass 2/2

Resources & Next Steps

Credits

  • All labs are from: KodeKloud
  • Thanks for providing them.

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