Amazon Elastic Container Service (ECS) Capacity Providers are now available. Capacity Providers are a new way to manage compute capacity for containers, that allow the application to define its requirements for how it uses the capacity. With Capacity Providers, you can define flexible rules for how containerized workloads run on different types of compute capacity, and manage the scaling of the capacity. Capacity Providers improve the availability, scalability, and cost of running tasks and services on ECS.
Source:: Amazon AWS