Amazon EC2 Auto Scaling
Amazon EC2 Auto Scaling is an AWS compute service designed to automatically adjust the number of running instances based on current demand. It helps organizations maintain consistent performance by adding or removing resources as needed, ensuring that applications have the necessary capacity to handle traffic fluctuations without manual intervention from the engineering team.
You should choose this service when your workload requires dynamic scaling to meet variable demand efficiently. Be aware that there is no free tier available for this service, and the pricing model requires you to contact AWS directly for details, so budget planning must account for potentially variable costs rather than a fixed starting rate.