Describe the feature

Expose the repository domain/hostname as a prop.

Use Case

The Docker credentials helper (e.g. docker-credential-ecr-login) expects a hostname in the configuration.

{
	"credHelpers": {
		"public.ecr.aws": "ecr-login",
		"<aws_account_id>.dkr.ecr.<region>.amazonaws.com": "ecr-login"
	}
}

Docs: https://github.com/awslabs/amazon-ecr-credential-helper?tab=readme-ov-file#docker

Proposed Solution

Extract the hostname part from this method:

And make it public:

  /**
   * Returns the domain of the repository. Can be used in Docker credentials helper.
   *
   *    ACCOUNT.dkr.ecr.REGION.amazonaws.com
   *
   * @param tagOrDigest Optional image tag or digest (digests must start with `sha256:`)
   */
  public get repositoryDomain(): string {
    return "";
  }

Other Information

This helper already ships with some CodeBuild images:

aws/aws-codebuild-docker-images#743

Acknowledgements

• I may be able to implement this feature request
• This feature might incur a breaking change

CDK version used

2.x

Environment details (OS name and version, etc.)

N/A