Apologies, but it's looking very unlikely this book will be finished. You can still read it if you want, and the book is now free. Leanpub allows you to voluntarily pay for the book, and if for some reason you choose to do this then 100% of the proceeds will go to the nominated charity listed at the bottom of the page.
Tools and technologies: Ubuntu Linux, Packer, VirtualBox, Go CD, Node.js
Setting up super simple Continuous Deployment to get started quickly
Recovering from a bad deployment
How to keep your application in an always releasable state, regardless of how big your team or organisation is
Manage your software stack and server configurations in a predictable fashion
Reduce the disparity between dev, QA, and production environments
Infrastructure as Code
Immutable Servers - automated provisioning of virtual machines and configuration management
This is just scratching the surface of the subject. There were many other topics and chapters I had planned before progress on the book stalled.