Ansible is a simple, but powerful, server and configuration management tool (with a few other tricks up its sleeve). This book helps those familiar with the command line and basic shell scripting start using Ansible to provision and manage anywhere from one to thousands of servers.
The book begins with fundamentals, like installing Ansible, setting up a basic inventory file, and basic concepts, then guides you through Ansible's many uses, including ad-hoc commands, basic and advanced playbooks, application deployments, multiple-provider server provisioning, and even Docker orchestration! Everything is explained with pertinent real-world examples, often using Vagrant-managed virtual machines.
Examples in the book are tested with the latest version of Ansible (2.x as of this writing).
Jeff Geerling is a developer who has worked in programming and devops for companies with anywhere between one to thousands of servers. He also manages many virtual servers for services offered by Midwestern Mac, LLC, and has been using Ansible to manage infrastructure since early 2013.