Using ElasticBeanstalk you still need to "handle" environments, applications. This is a level of abstraction above ECS, which Beanstalk uses behind the scenes

Using ElasticBeanstalk you still need to "handle" environments, applications. This is a level of abstraction above ECS, which Beanstalk uses behind the scenes for multi-container installations. If you think about it, it's like Heroku for docker, you handle "apps", and the rest is handled by Rack. This is how I understand it.