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A Cloud Guru

Configuring AWS Auto Scaling Rolling Updates

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.

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Path Info

Level

Intermediate

Duration

30m

Published

May 18, 2021

Challenge

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.
Challenge

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.

Author

A Cloud Guru

The Cloud Content team comprises subject matter experts hyper focused on services offered by the leading cloud vendors (AWS, GCP, and Azure), as well as cloud-related technologies such as Linux and DevOps. The team is thrilled to share their knowledge to help you build modern tech solutions from the ground up, secure and optimize your environments, and so much more!

What's a lab?

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.