Containers are created from a read-only template called an image, which has the instructions for creating a Docker container.

  • Images are built from a Dockerfile. Only Docker containers are supported currently.
  • Images are stored in a registry such as DockerHub or AWS Elastic Container Registry (ECR).

ECR is a managed AWS Docker registry service that is secure, scalable, and reliable. ECR supports private Docker repositories with resource-based permissions using AWS IAM to access repositories and images. Developers can use the Docker CLI to push, pull, and manage images.

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