AWS Elastic Beanstalk now supports sharing of an Application Load Balancer among Elastic Beanstalk environments

By GIXnews

You can now associate an existing Application Load Balancer when you create an AWS Elastic Beanstalk application environment. This capability enables you to share your existing Application Load Balancer and allow it to serve traffic for multiple applications running on Elastic Beanstalk within the same Amazon Virtual Private Cloud. 

Source:: Amazon AWS