In 2012, early cloud pioneer Heroku developed the Twelve Factor App, a set of rules and guidelines for helping organizations build cloud-native applications. It served as an excellent starting point, but as technology inevitably marched forward, some areas needed revisiting. To accommodate current best practices, this practical book expands on the original guidelines to help you build applications that not only function in the cloud, but also thrive.

Information architect Kevin Hoffman takes you through each factor in detail, explaining why these guidelines are important and, in some cases, pointing out how and why today’s new approaches work better.

You’ll learn exactly what a 12 factor app is, and discover how to evaluate your existing applications against the guidelines in this book.

• Compare the original 12 factors to the author’s 15 expanded and revised factors
• Understand why the concept of “API First”, as well telemetry and security have been added
• Learn the caveats or exceptions to the original factors that reflect today’s best practices

Table of Contents

Chapter 1. One Codebase, One Application

Chapter 2. API First

Chapter 3. Dependency Management

Chapter 4. Design, Build, Release, Run

Chapter 5. Configuration, Credentials, and Code

Chapter 6. Logs

Chapter 7. Disposability

Chapter 8. Backing Services

Chapter 9. Environment Parity

Chapter 10. Administrative Processes

Chapter 11. Port Binding

Chapter 12. Stateless Processes

Chapter 13. Concurrency

Chapter 14. Telemetry

Chapter 15. Authentication and Authorization

Chapter 16. A Word on Cloud Native

Chapter 17. Summary

About the Author

Kevin Hoffman is an Advisory Solutions Architect for Pivotal Cloud Foundry where he helps teach organizations how to build cloud native apps, migrate applications to the cloud, and embrace all things cloud and microservice. He has written applications for just about every type of industry, including autopilot software for quadcopters, waste management, financial services, and biometric security. In his spare time, when not coding, tinkering, or learning new tech, he also writes fantasy and science fiction books.