Containers
CoreAmazon ECS
Explicit CloudWatch-agent workload and current target-candidate compute context.
Key points
- ECS is a container workload surface for CloudWatch collection, task scaling, placement, and underlying capacity checks.
Best-known use cases
- D1.1, D2.1, and D3.1: monitor or scale an ECS workload and confirm that cluster capacity can place the desired tasks.
What candidates often confuse it with
- ECS manages container workloads, while ECR stores their images and EKS exposes a Kubernetes operating model.
Key takeaway
For ECS, separate desired task count from the compute capacity and constraints required to place those tasks.
Related services
- Amazon ECR
- Amazon EKS
Relevant exam tasks
- D1.1 — Task 1.1: Implement metrics, alarms, and filters by using AWS monitoring and logging services.
- 1.1.1 — Use AWS services (for example, Amazon CloudWatch, AWS CloudTrail, Amazon Managed Service for Prometheus) to configure monitoring and logging for workloads (for example, serverless, compute, AI).
- D2.1 — Task 2.1: Implement scalability and elasticity.
- 2.1.1 — Configure and manage scaling mechanisms in compute environments.
- D3.1 — Task 3.1: Provision and maintain cloud resources.
- 3.1.1 — Create and manage AMIs and container images (for example, EC2 Image Builder).