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docs(ecr-assets): add link to AppStagingSynthesizer in ECR Assets documentation #28818

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Jan 23, 2024
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docs(ecr-assets): add link to AppStagingSynthesizer in ECR Assets documentation #28818

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docs(app-staging-synthesizer-alpha): add link to AppStagingSynthesize…
blimmer Jan 22, 2024
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Merge branch 'main' into add-app-staging-synthesizer-link-to-docs
mergify[bot] Jan 23, 2024
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9 changes: 8 additions & 1 deletion packages/aws-cdk-lib/aws-ecr-assets/README.md
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Expand Up @@ -162,7 +162,14 @@ through the CDK CLI or through CI/CD workflows. To that end, the ECR repository
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
We are testing a new experimental synthesizer, the
[App Staging Synthesizer](https://docs.aws.amazon.com/cdk/api/v2/docs/app-staging-synthesizer-alpha-readme.html) that
creates separate support stacks for each CDK application. Unlike the default stack synthesizer, the App Staging
Synthesizer creates unique ECR repositories for each `DockerImageAsset`, allowing lifecycle policies to only retain the
last `n` images. This is a great way to keep your ECR repositories clean and reduce cost. You can learn more about
this feature in [this blog post](https://aws.amazon.com/blogs/devops/enhancing-resource-isolation-in-aws-cdk-with-the-app-staging-synthesizer/).
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Feedback is welcome - this PR is mostly to start the conversation.


Alternatively, 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.

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