Configuring AWS Auto Scaling Rolling Updates

30 minutes
  • 2 Learning Objectives

About this Hands-on Lab

Welcome to this hands-on lab, where you will learn how to perform Auto Scaling rolling updates. A common scenario is the need to perform updates on the instances in an Auto Scaling group. It is not possible to update launch configurations directly, which complicates updating Auto Scaling groups without incurring downtime. Using Auto Scaling rolling updates is the answer. Rolling updates allow you to update instances (where the instances are actually replaced), while allowing you to specify that at least one instance is always active. In this way, downtime can be avoided while the update is taking place.

Learning Objectives

Successfully complete this lab by achieving the following learning objectives:

Create 1 CloudFormation Stack
  1. Download the rolling.json template file from the GitHub lab repository.
  2. Navigate to EC2.
  3. Create a key pair.
  4. Navigate to CloudFormation.
  5. Click Create stack.
  6. Click Upload a template file and select the rolling.json file.
  7. Click the checkmark box and then the cloud icon in the top left to validate the template and create the stack.
  8. Enter any parameters required, and click Next.
  9. Click Next on the options page.
  10. Click Create.
Update Auto Scaling Group
  1. Click Update.
  2. Click Edit template in Designer.
  3. Insert the following UpdatePolicy:
    "UpdatePolicy": {
        "AutoScalingRollingUpdate": {
            "MaxBatchSize": "4",
            "MinInstancesInService": "1",
            "PauseTime": "PT2M"
  4. Click the up arrow icon in the top left to update the stack.
  5. Click Next.
  6. On the Specify stack details page, under Ec2InstanceType, enter t2.medium.
  7. Click Next > Next.
  8. Click Update stack.

Additional Resources

Log in to AWS Management Console using the provided cloud_user credentials.

Once logged in, make sure you are using us-east-1 (N. Virginia) as the selected region.

Download the rolling update template from GitHub.

What are Hands-on Labs

Hands-on Labs are real environments created by industry experts to help you learn. These environments help you gain knowledge and experience, practice without compromising your system, test without risk, destroy without fear, and let you learn from your mistakes. Hands-on Labs: practice your skills before delivering in the real world.

Sign In
Welcome Back!

Psst…this one if you’ve been moved to ACG!

Get Started
Who’s going to be learning?