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Amazon EC2 Container Registry

Fully-managed Docker container registry

Amazon Elastic Container Registry (ECR) is a fully-managed Docker container registry that enables developers to store, manage, and deploy Docker container images.
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Amazon ECR (Elastic Container Registry) is a fully managed Docker container registry service provided by AWS. It integrates with Amazon ECS (Elastic Container Service) and other container orchestration services to simplify storing, managing, and deploying Docker container images. Key features of A…

Concepts covered: Amazon ECR Immutable Tags, Amazon EC2 Container Registry (Amazon ECR), Image Scanning, Amazon ECR Interface VPC Endpoints, Integration with Other AWS Services, Registry Namespaces, Authentication and Authorization, Image Repositories, Amazon ECR Cross-Region Replication, Docker Image Push and Pull, ECR Lifecycle Policies, ECR Events and Notifications, Image Encryption, Amazon ECR Public

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AWS Certified Solutions Architect - Amazon EC2 Container Registry Example Questions

Test your knowledge of Amazon EC2 Container Registry

Question 1

What is the AWS service that provides private Docker image hosting and distribution?

Correct Answer: Amazon Elastic Container Registry (ECR)

Amazon Elastic Container Registry (ECR) is the AWS service that provides private Docker image hosting and distribution.

Question 2

Can Amazon ECR be used to store Docker images built using other build tools and technologies such as Jenkins or Ansible?

Correct Answer: Yes

Amazon ECR can be used to store Docker images built using any build tools or technologies. Users can push any Docker image that complies with Docker image format and can be authenticated to the Amazon ECR registry.

Question 3

A central AWS account owns an Amazon ECR repository. Can other AWS accounts be granted permission to push and/or pull images to that same repository, and is co-location in the same region or VPC required?

Correct Answer: Yes

Yes. An Amazon ECR repository is owned by a single AWS account, but you can grant other AWS accounts permission to push and/or pull images using an ECR repository policy or cross-account IAM roles. ECR is a regional service, so clients must authenticate and interact with the repository in its region, but there is no requirement that accounts be in the same VPC or have the same default region. Cross-account access works regardless of VPC, and region alignment is only that operations target the repository's region.

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