Book Image

Mastering Ansible. - Third Edition

By : James Freeman, Jesse Keating
Book Image

Mastering Ansible. - Third Edition

By: James Freeman, Jesse Keating

Overview of this book

Automation is essential for success in the modern world of DevOps. Ansible provides a simple, yet powerful, automation engine for tackling complex automation challenges. This book will take you on a journey that will help you exploit the latest version's advanced features to help you increase efficiency and accomplish complex orchestrations. This book will help you understand how Ansible 2.7 works at a fundamental level and will also teach you to leverage its advanced capabilities. Throughout this book, you will learn how to encrypt Ansible content at rest and decrypt data at runtime. Next, this book will act as an ideal resource to help you master the advanced features and capabilities required to tackle complex automation challenges. Later, it will walk you through workflows, use cases, orchestrations, troubleshooting, and Ansible extensions. Lastly, you will examine and debug Ansible operations, helping you to understand and resolve issues. By the end of the book, you will be able to unlock the true power of the Ansible automation engine and tackle complex, real- world actions with ease.
Table of Contents (17 chapters)
Free Chapter
1
Section 1: Ansible Overview and Fundamentals
6
Section 2: Writing and Troubleshooting Ansible Playbooks
12
Section 3: Orchestration with Ansible

Getting AWX up and running

Before we get stuck into installing AWX, it is worth briefly exploring what AWX is, and indeed isn't. AWX is a tool to be employed alongside Ansible. It does not duplicate or replicate, in any way, the features of Ansible—indeed, when Ansible playbooks are run from AWX, the ansible-playbook binary is being called behind the scenes. Rather, AWX should be considered a complementary tool that adds the following benefits, on which many enterprises depend:

  • Rich role-based access control (RBAC)
  • Integration with centralized login services (for example, LDAP or Active Directory)
  • Secure credential management
  • Auditability
  • Accountability
  • Lower barrier to entry for new operators
  • Improved management of playbook version control

Most of the AWX code runs in a set of Docker containers, which makes it straightforward to deploy in most environments. However...