(ecr): add option to auto delete images upon ECR repository removal

Use Case

ECR repositories currently do not get delete if they contain images even the removalPolicy is set to DESTROY.

It was reported in #2765, and was thought to be a responsibility of CloudFormation team https://github.com/aws-cloudformation/aws-cloudformation-coverage-roadmap/issues/515.

Proposed Solution

I do think we should add a option to force delete the images using custom resource provider, which is just like #12090 that uses a custom resource provider to delete objects in s3.

The code might looks like this:

const bucket = new ecr.Repository(this, 'Repo', {
  repositoryName: 'delete-even-if-contains-images',
  removalPolicy: cdk.RemovalPolicy.DESTROY,
  autoDeleteImages: true,
});

The props autoDeleteImages can only to be true if removalPolicy is set to DESTROY.

Other

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

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This is a 🚀 Feature Request

[kirintwn]

Hi @heiba , I have updated my branch, added more tests & opened a PR #15932.

[MrArnoldPalmer]

hey @kirintwn, would you be interested in publishing this as a separate module? There definitely is a need and it would be a good way to get some users testing it before merging into the CDK. It may be possible to extend the existing ecr.Repository class and intercept this prop and then create the custom resource.