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

Summary

DevOps has pushed automation in many new directions, including the containerization of applications, and even the creation of an infrastructure itself. Cloud computing services enable self-service management of fleets of servers for running services. Ansible can easily interact with these services to provide the automation and orchestration engine.

In this chapter, you learned how to manage on-premise cloud infrastructures, such as OpenStack, using Ansible. We then extended this with examples of public cloud infrastructure provision on both AWS and Microsoft Azure. Finally, you learned how to interact with Docker using Ansible, and how to neatly package Docker service definitions using Ansible Container.

Ansible can start just about any host, except for the one that it is running on, and with proper credentials, it can create the infrastructure that it wants to manage...