What this book covers

Chapter 1, Getting Started with Heroku, will teach you how to set up all the tools we need to get our applications ready and deployed to Heroku.

Chapter 2, Managing Heroku from the Command Line, informs us that Heroku's CLI is the backbone of all our interactions with our Heroku application. Here, we'll get comfortable with administering our apps from the CLI.

Chapter 3, Setting Up a Staging Environment, specifies how to set up a staging environment for our Heroku applications. We need a place to test our application before deploying it to production.

Chapter 4, Production-ready with Heroku, covers the steps needed to get a Heroku application ready to handle production-level traffic.

Chapter 5, Error Monitoring and Logging Tools, specifies how to set up logging and alerts to keep us informed about any problems with our application. We can never have too much information about our application's usage and performance.

Chapter 6, Load Testing a Heroku Application, specifies how to simulate massive spikes of traffic and get insight into our application's performance bottlenecks. The first step to improving our application's performance is being able to measure it.

Chapter 7, Optimizing Ruby Server Performance on Heroku, specifies how to choose and configure our Ruby web server for maximum performance on a Heroku dyno.

Chapter 8, Optimizing a Rails Application on Heroku, tells us how to introduce caching and reduce load times throughout our Rails applications.

Chapter 9, Using and Administrating Heroku Postgres, specifies how to pick the right plan, administer it from the CLI, and keep it healthy with various Postgres health checks, as our database is the most critical piece of our application.

Chapter 10, The Heroku Platform API, specifies how to create, scale, and manage our applications, all through the API, thus preparing us to write our own programs to interact with Heroku for us.