I have published an InfoQ news post about the AWS team's efforts to increase runtime choices for its platform as a service offering Elastic Beanstalk:
After gaining generic Docker support in July 2014, Amazon Web Services (AWS) now added "Preconfigured Docker" as a new category of supported platforms to its platform as a service offering AWS Elastic Beanstalk. This category of platforms is based on the recently added official repositories for language stacks on the Docker Hub Registry.
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Continue reading the full post in AWS Elastic Beanstalk Adds Preconfigured Docker Platform.