Book Image

Mastering Ansible, 4th Edition - Fourth Edition

By : James Freeman, Jesse Keating
Book Image

Mastering Ansible, 4th Edition - Fourth Edition

By: James Freeman, Jesse Keating

Overview of this book

Ansible is a modern, YAML-based automation tool (built on top of Python, one of the world’s most popular programming languages) with a massive and ever-growing user base. Its popularity and Python underpinnings make it essential learning for all in the DevOps space. This fourth edition of Mastering Ansible provides complete coverage of Ansible automation, from the design and architecture of the tool and basic automation with playbooks to writing and debugging your own Python-based extensions. You'll learn how to build automation workflows with Ansible’s extensive built-in library of collections, modules, and plugins. You'll then look at extending the modules and plugins with Python-based code and even build your own collections — ultimately learning how to give back to the Ansible community. By the end of this Ansible book, you'll be confident in all aspects of Ansible automation, from the fundamentals of playbook design to getting under the hood and extending and adapting Ansible to solve new automation challenges.
Table of Contents (18 chapters)
Section 1: Ansible Overview and Fundamentals
Section 2: Writing and Troubleshooting Ansible Playbooks
Section 3: Orchestration with Ansible

To get the most out of this book

To follow the examples provided in this book, you will need access to a computer platform capable of running Ansible. Currently, Ansible can be run on any machine with Python 2.7 or Python 3 (versions 3.5 and higher) installed (Windows is supported for the control machine, but only through a Linux distribution running in the Windows Subsystem for Linux (WSL) layer available on newer versions—see Chapter 4, Ansible and Windows – Not Just for Linux, for details). Operating systems supported include (but are not limited to) Red Hat, Debian, Ubuntu, CentOS, macOS, and FreeBSD.

This book uses the Ansible 4.x.x series release. Ansible installation instructions can be found at

Some examples use Docker version 20.10.8. Docker installation instructions can be found at

A handful of examples in this book make use of accounts on both Amazon Web Services (AWS) and Microsoft Azure. More information about these services may be found at and, respectively. We also delve into the management of OpenStack with Ansible, and the examples in this book were tested against a single all-in-one instance of DevStack as per the instructions found here:

Finally, Chapter 13, Network Automation, makes use of Arista vEOS 4.26.2F and Cumulus VX version 4.4.0 in the example code—please see here for more information: and If you are using the digital version of this book, we advise you to type the code yourself or access the code from the book's GitHub repository (a link is available in the next section). Doing so will help you avoid any potential errors related to the copying and pasting of code.