Amazon ECR Repository Policies
Amazon ECR uses resource-based permissions to control access. Resource-based permissions let you specify who has access to a repository and what actions they can perform on it. By default, only the repository owner has access to a repository. You can apply a policy document that allows others to access your repository.
Amazon ECR users require permissions to call
before they can authenticate to a registry and push or pull any images from any Amazon ECR
repository. Amazon ECR provides several managed policies to control user access at varying
levels; for more information, see Amazon ECR Managed Policies.