Containers
RecognitionAmazon ECR
Image storage/version context for container-image management.
Key points
- ECR stores and versions container images used by ECS and EKS workloads.
Best-known use cases
- D1.1, D2.1, and D3.1: publish or retrieve the approved container-image version during an operational deployment.
What candidates often confuse it with
- ECR is the image registry; ECS and EKS run and manage container workloads.
Key takeaway
Verify the repository permission, tag or digest, Region, and deployed image when troubleshooting a container rollout.
Related services
- Amazon ECS
- 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).