Which solution will meet these requirements with the LEAST amount of infrastructure management overhead?
Add a capacity provider to manage instances.
Add an Amazon EC2 instance that runs the application.
Define a task definition with an AWS Fargate launch type.
Create an Amazon ECS cluster and add the managed node groups feature to run the application.
Explanations:
Adding a capacity provider to manage instances requires additional management of EC2 instances, which increases infrastructure overhead compared to using a fully managed service like Fargate.
Running an application on an Amazon EC2 instance requires provisioning and managing the EC2 instance, which adds complexity and overhead. This is not ideal for minimizing management tasks.
Defining a task definition with an AWS Fargate launch type allows the application to run serverless, requiring no management of underlying infrastructure. Fargate handles the scaling and resource allocation, making it the best option for minimizing overhead.
Creating an ECS cluster with managed node groups involves managing EC2 instances, which adds complexity and overhead. While managed node groups simplify some aspects of instance management, they still require more infrastructure management than using Fargate.
I organize that the answer is:
Define a task definition with an AWS Fargate launch type.