Amazon Elastic Container Registry (ECR) is a fully managed registry for storing, managing, and deploying your Docker container images — the AWS equivalent of Docker Hub, integrated with ECS, EKS, and Fargate.
Where it fits
When a container scenario mentions storing or pulling images, that’s ECR. It holds the images; ECS/EKS/Fargate run them. It integrates with IAM for access control and scans images for vulnerabilities.
Test yourself
A team using ECS needs a secure, managed place to store and version their Docker container images within AWS. Which service?
- Amazon S3
- Amazon ECR
- AWS CodeCommit
- Amazon EFS
👉 Click to reveal the answer & explanation
Correct answer: B. ECR is the managed container image registry, integrated with ECS/EKS/Fargate and IAM. S3 (A) stores objects, not container images for direct pulls; CodeCommit (C) is Git source control; EFS (D) is a file system.
Related topics
ECS vs EKS vs Fargate · Amazon EC2 · AWS IAM
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