[ECR] [request]: ECR automated builds

[jguo11]

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Tell us about your request Docker Hub provides auto-build feature for images hosted in its repositories. It can automatically builds images from source code and automatically pushes the built image to Docker repositories. When there's a change in Dockerfile or a base image revision becomes available, the auto-build kicks in and updates the hosted image. Many of the Docker Hub repo owners benefit from it. But currently, this feature is missing in ECR and ECR registry owners have to spend extra time and effort to keep their images up-to-date.

Which service(s) is this request for? ECR

Are you currently working around this issue? We have to build our own workflow to monitor our images' status in ECR and auto-build when needed. But we believe this is a common use case.

[mwarkentin]

Along the same lines (maybe worth a separate issue?) it would be nice if it would also support Cloud Native Buildpacks as an alternative to Dockerfiles.