What it is: A logical grouping of ECS capacity (EC2 instances or Fargate) where tasks run.

What it’s for:

• Organize services and tasks in a shared environment.
• Scale and manage workloads together.

Key ideas:

• A cluster contains services and tasks.
• Capacity is provided by EC2 instances or Fargate.

Hard words:

• *capacity* /kəˈpæsəti/: năng lực tài nguyên
• *workload* /ˈwɝːkloʊd/: khối lượng công việc