Amazon ECR (Elastic Container Registry) is AWS's fully managed container image registry, used to store and distribute Docker and OCI images for services like ECS and EKS.

How is access to Amazon ECR controlled?

Access is controlled through AWS IAM policies, allowing fine-grained permissions over which users, roles, or services can push or pull specific repositories.

Does Amazon ECR scan images for vulnerabilities?

Yes, ECR includes built-in image scanning that checks pushed images against known vulnerability databases.

Is there a public version of Amazon ECR?

Yes, Amazon ECR Public allows organizations to host publicly accessible container images and is used, for example, to distribute official AWS-related images.

How does Amazon ECR compare to Docker Hub?

Amazon ECR integrates tightly with AWS IAM and services like ECS and EKS, making it a natural choice for AWS-centric workloads, while Docker Hub is a cloud-agnostic registry widely used as the default source for public base images.

DevOps

Amazon ECR

By Amazon Web Services

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Amazon Elastic Container Registry (Amazon ECR) is a fully managed Docker and OCI container image registry on AWS, integrated with IAM permissions and AWS container services such as ECS and EKS.

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Definition

Amazon Elastic Container Registry (Amazon ECR) is a fully managed Docker and OCI container image registry on AWS, integrated with IAM permissions and AWS container services such as ECS and EKS.

Overview

Amazon ECR provides managed, private (and optionally public, via ECR Public) storage for Docker and OCI images, removing the need to operate a self-managed registry. Access is controlled through AWS Identity and Access Management (IAM), so the same permission model used across an AWS account governs who and what can push or pull images, including services like Amazon ECS, Amazon EKS (Kubernetes), and AWS Lambda container images. ECR integrates with the broader AWS deployment toolchain, including AWS CodePipeline for CI/CD and image scanning features that check pushed images for known vulnerabilities. It is commonly compared with other cloud-native registries such as Google Cloud's Artifact Registry, and with cross-platform options like Docker Hub and GitHub Container Registry, with AWS-based workloads typically favoring ECR for its tight IAM and networking integration.

Key Features

Fully managed private and public container image registry on AWS
IAM-based access control for pushing and pulling images
Native integration with Amazon ECS, EKS, and Lambda container images
Built-in vulnerability scanning for stored images
Image replication across AWS regions
Lifecycle policies for automatically expiring old image versions

Use Cases

Storing container images for deployment to ECS or EKS

Running Lambda functions packaged as container images

Scanning images for known vulnerabilities before deployment

Restricting image access using existing AWS IAM policies

Replicating images across regions for multi-region deployments

Frequently Asked Questions

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