Preface

As developers, we want to spend our time focusing on building our applications. We're not interested in setting up load balancers or endlessly tweaking firewalls. We just want to easily deploy and scale our code.

Heroku has made this possible by automating and hiding the dirty details of application deployment. This has resulted in a giant leap in developer productivity, making it easier to deploy code than it was earlier.

Even though Heroku has dramatically simplified the entire process, there is still a lot that we need to know before we launch a production-level application on Heroku.

The goal of this book is to teach developers how to use Heroku effectively. You'll learn exactly what it takes to deploy and support a production-level application on Heroku. Along the way, we will learn how Heroku works behind the scenes. The more we understand, the better we will be equipped to take decisions on how our applications should be designed and written.