Creating ECR repositories using the AWS CLI

Creating an ECR repository can be performed using the AWS CLI by running the aws ecr create-repository command, however given you have already created your repository via the AWS console, let's see how you can check whether an ECR repository already exists and how to delete a repository using the AWS CLI.

To view a list of ECR repositories in your AWS account and local region, you can use the aws ecr list-repositories command, while to delete an ECR repository, you can use the aws ecr delete-repository command, as demonstrated here:

> aws ecr list-repositories
{
    "repositories": [
        {
            "repositoryArn": "arn:aws:ecr:us-east-1:385605022855:repository/docker-in-aws/todobackend",
            "registryId": "385605022855",
            "repositoryName": "docker-in-aws/todobackend",
            "repositoryUri": "385605022855.dkr.ecr.us-east-1.amazonaws.com/docker-in-aws/todobackend",
            "createdAt": 1517692382.0
        }
    ]
}
> aws ecr delete-repository --repository-name docker-in-aws/todobackend
{
    "repository": {
        "repositoryArn": "arn:aws:ecr:us-east-1:385605022855:repository/docker-in-aws/todobackend",
        "registryId": "385605022855",
        "repositoryName": "docker-in-aws/todobackend",
        "repositoryUri": "385605022855.dkr.ecr.us-east-1.amazonaws.com/docker-in-aws/todobackend",
        "createdAt": 1517692382.0
    }
}

Now that you have deleted the repository you created earlier using the AWS console, you can re-create it, as demonstrated here:

> aws ecr create-repository --repository-name docker-in-aws/todobackend
{
    "repository": {
        "repositoryArn": "arn:aws:ecr:us-east-1:385605022855:repository/docker-in-aws/todobackend",
        "registryId": "385605022855",
        "repositoryName": "docker-in-aws/todobackend",
        "repositoryUri": "385605022855.dkr.ecr.us-east-1.amazonaws.com/docker-in-aws/todobackend",
        "createdAt": 1517693074.0
    }
}