InvalidParameterType error when trying to pass repository_name to DockerImageAsset

[juweeks]

🐛 Bug Report

What is the problem?

trying to pass the ECR repository name defined in a Repository object to the DockerImageAsset repository_name attribute and receiving an error upon deployment:

Expected params.repositoryNames[0] to be a string

i'm using the inherited ecr.Repository.repository_name attribute, which should be a string, to pass to the DockerImageAsset but it says that it's not?

Reproduction Steps

        repo = ecr.Repository(
            self,
            id='repo_id',
            repository_name='my-repo',
            lifecycle_rules=[ecr.LifecycleRule(max_image_count=10)]
        )

        repo_image = ecr_assets.DockerImageAsset(
            self,
            id='repo_image_id',
            directory='repo_dir',
            repository_name=repo.repository_name
        )

$ cdk deploy

Verbose Log

my-stack-cdk-1: deploying...

 ❌  my-stack-cdk-1 failed: InvalidParameterType: Expected params.repositoryNames[0] to be a string
Expected params.repositoryNames[0] to be a string

Environment

• CDK CLI Version: 1.5.0
• Module Version: 1.5.0
• OS: Amazon Linux 2
• Language: Python

Other information

CDK is awesome! keep up the good work!

[rix0rrr]

Your intended scenario wouldn't be supported anyway, since asset processing happens before the repo would be deployed (so you couldn't refer to it in this way).

repository_name needs to be a literal string, and the repository would be created outside of a CloudFormation stack.