EC2 Auto Scaling

EC2 Auto Scaling is a service that automatically adjusts the number of virtual servers (EC2 instances) in response to changing demand. It helps ensure your application has enough capacity to handle traffic without overpaying for idle resources. When traffic increases, Auto Scaling provisions more instances; when demand drops, it reduces the number of instances. This dynamic management improves reliability, performance, and cost-efficiency, allowing your system to adapt seamlessly to fluctuations, much like a thermostat adjusts heating based on room temperature.