aws-ecr-assets: Readme points to out of date information

[chamsco-aws]

Describe the issue

This section of the README.md directs customers to use cdklabs/cdk-ecr-deployment

aws-cdk/packages/aws-cdk-lib/aws-ecr-assets/README.md

Lines 147 to 180 in 9312c97

	## Publishing images to ECR repositories
	`DockerImageAsset` is designed for seamless build & consumption of image assets by CDK code deployed to multiple environments
	through the CDK CLI or through CI/CD workflows. To that end, the ECR repository behind this construct is controlled by the AWS CDK.
	The mechanics of where these images are published and how are intentionally kept as an implementation detail, and the construct
	does not support customizations such as specifying the ECR repository name or tags.
	If you are looking for a way to _publish_ image assets to an ECR repository in your control, you should consider using
	[cdklabs/cdk-ecr-deployment], which is able to replicate an image asset from the CDK-controlled ECR repository to a repository of
	your choice.
	Here an example from the [cdklabs/cdk-ecr-deployment] project:
	```text
	// This example available in TypeScript only
	import { DockerImageAsset } from 'aws-cdk-lib/aws-ecr-assets';
	import * as ecrdeploy from 'cdk-ecr-deployment';
	const image = new DockerImageAsset(this, 'CDKDockerImage', {
	directory: path.join(__dirname, 'docker'),
	});
	new ecrdeploy.ECRDeployment(this, 'DeployDockerImage', {
	src: new ecrdeploy.DockerImageName(image.imageUri),
	dest: new ecrdeploy.DockerImageName(`${cdk.Aws.ACCOUNT_ID}.dkr.ecr.us-west-2.amazonaws.com/test:nginx`),
	});
	```
	⚠️ Please note that this is a 3rd-party construct library and is not officially supported by AWS.
	You are welcome to +1 [this GitHub issue](https://github.com/aws/aws-cdk/issues/12597) if you would like to see
	native support for this use-case in the AWS CDK.
	[cdklabs/cdk-ecr-deployment]: https://github.com/cdklabs/cdk-ecr-deployment

However in this closed issue (ecr-deployment): new aws-ecr-deployment module

Check out cdk-docker-image-deployment, a new library that gives you control of the tags and organization of your Docker image assets.

Right now, it lives in cdklabs and will be maintained by the cdk team, but depending on its popularity we may add it to the core aws-cdk-lib library as well. We are excited to get your feedback and hear what features you would like to see added!

Originally posted by @scanlonp in #12597 (comment)

You direct people to use cdklabs/cdk-docker-image-deployment, I think the documentation needs to be updated to the new preferred package.

Links

aws-cdk/packages/aws-cdk-lib/aws-ecr-assets/README.md

Lines 147 to 180 in 9312c97

	## Publishing images to ECR repositories
	`DockerImageAsset` is designed for seamless build & consumption of image assets by CDK code deployed to multiple environments
	through the CDK CLI or through CI/CD workflows. To that end, the ECR repository behind this construct is controlled by the AWS CDK.
	The mechanics of where these images are published and how are intentionally kept as an implementation detail, and the construct
	does not support customizations such as specifying the ECR repository name or tags.
	If you are looking for a way to _publish_ image assets to an ECR repository in your control, you should consider using
	[cdklabs/cdk-ecr-deployment], which is able to replicate an image asset from the CDK-controlled ECR repository to a repository of
	your choice.
	Here an example from the [cdklabs/cdk-ecr-deployment] project:
	```text
	// This example available in TypeScript only
	import { DockerImageAsset } from 'aws-cdk-lib/aws-ecr-assets';
	import * as ecrdeploy from 'cdk-ecr-deployment';
	const image = new DockerImageAsset(this, 'CDKDockerImage', {
	directory: path.join(__dirname, 'docker'),
	});
	new ecrdeploy.ECRDeployment(this, 'DeployDockerImage', {
	src: new ecrdeploy.DockerImageName(image.imageUri),
	dest: new ecrdeploy.DockerImageName(`${cdk.Aws.ACCOUNT_ID}.dkr.ecr.us-west-2.amazonaws.com/test:nginx`),
	});
	```
	⚠️ Please note that this is a 3rd-party construct library and is not officially supported by AWS.
	You are welcome to +1 [this GitHub issue](https://github.com/aws/aws-cdk/issues/12597) if you would like to see
	native support for this use-case in the AWS CDK.
	[cdklabs/cdk-ecr-deployment]: https://github.com/cdklabs/cdk-ecr-deployment

[peterwoodworth]

If it's still true that the new package isn't working on non-ts languages, we may want to address that first before updating the docs here

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