Description

Heroku is a Platform as a Service (PaaS) that provides hosting for web applications. They offer abstracted environments where you don't have to manage the underlying infrastructure, making it easy to manage, deploy, and scale web applications. Heroku embraces the "batteries included" philosophy. It's an opinionated environment, but it's also an environment that you don't have to manage -- so you can focus on application development rather than the environment supporting it.

The tutorials and articles on TestDriven teach advanced Heroku deployment strategies and workflows, usually with continuous integration and deployment, using Docker.