Jobs - are the fundamental applications running on Amazon EC2 machines

in containerised form.

● Job Definitions – define how the job is meant to be run. Like the associated

IAM role, vCPU requirement, and container properties.

● Job Queues – Jobs reside in the Job queue where they wait till they are

scheduled.

● Compute Environments – Each job queue is linked to a computing

environment which in itself contains the EC2 instance to run containerized

applications.

● There are two types of environments: Managed where the user gives min

and max vCPU, EC2 instance type and AWS runs it on your behalf and

Unmanaged where you have your own ECS agent.

● Scheduler – maintains the execution of jobs submitted to the queue as time

and dependencies.