Auto Scaling Groups

Auto Scaling groups (ASGs) ensure our applications are flexible, reliable, and always available in the cloud. ASGs are essential for maintaining optimal performance, especially when facing high demand. In this lesson, we’ll learn about ASGs and explore their operations and important role in scaling our AWS-hosted applications.

What are ASGs

ASG is a service from AWS that helps the applications automatically adjust how many instances they use based on how much they need. Consider ASGs a smart system that watches over our application’s traffic, ensuring that it runs well. If more people start using our application and it gets really busy, ASGs will add more instances to handle everything smoothly. But when fewer people use it, ASGs take away some instances to reduce our operational cost.