With the new Quick Start you can deploy a blue green architecture on AWS

The new Quick Start can help you build architecture for blue-green deployment to the Amazon Web Services Elastic Beanstalk environment. It creates a continuous delivery and continuous integration pipeline utilizing the AWS CodePipeline for fault-tolerant and cost-effective architecture. It just takes 15 minutes for deployment and it is automated by the AWS CloudFormation templates. When the application is deployed to the Elastic Beanstalk environment where having two separate but similar environments blue and green reduces the risk and increases the availability. You can deploy the blue and green architecture on AWS cloud with or without Git to S3 integration.