Final answer:
ECS integrates with ECR by allowing ECS to directly pull Docker container images from ECR repositories for deployment. The integration facilitates streamlined container management and deployment, supporting automated deployments and version control. Setting up involves creating an ECR repository, pushing Docker images, and referencing them in ECS task definitions.
Step-by-step explanation:
The integration of Amazon Elastic Container Service (ECS) with Amazon Elastic Container Registry (ECR) allows for streamlined management and deployment of Docker containers in a cloud environment. ECS is a container management service that supports Docker containers and allows users to run applications on a managed cluster of Amazon EC2 instances. ECR, on the other hand, is a Docker container registry service that enables developers to store, manage, and deploy Docker container images. Integrating ECS with ECR is straightforward as ECS can directly pull container images from ECR when deploying containers. Additionally, ECR provides a secure, scalable, and reliable registry, which is crucial for continuous integration and continuous delivery (CI/CD) pipelines.
To set up the integration, a user has to create a repository in ECR, push a Docker image to it, and then reference the image in their ECS task definition. When an ECS service or task is launched, ECS pulls the referenced image from the ECR repository and runs it on the EC2 instances within the cluster. The integration supports automated deployments and eases version control of container images. ECS also provides an IAM role that grants the necessary permissions to access ECR repositories securely.