AWS Auto Scaling
It automates the process of adding (Scaling up) or removing (Scaling down) EC2 instances based on traffic demand of your application.
It has mainly two components:
- Launch Configuration
- Auto Scaling Group
Using Auto scaling is Absolutely Free, however, you will be charged for the EC2 instances that will be provisioned and will exceed beyond your Free-tier.
I hope this give you basic understanding of AWS Auto Scaling. If you have any doubts or queries, please feel free to comment below.