Book Image

Practical Ansible 2

By : Daniel Oh, James Freeman, Fabio Alessandro Locati
Book Image

Practical Ansible 2

By: Daniel Oh, James Freeman, Fabio Alessandro Locati

Overview of this book

Ansible enables you to automate software provisioning, configuration management, and application roll-outs, and can be used as a deployment and orchestration tool. While Ansible provides simple yet powerful features to automate multi-layer environments using agentless communication, it can also solve other critical IT challenges, such as ensuring continuous integration and continuous deployment (CI/CD) with zero downtime. In this book, you'll work with Ansible 2.9 and learn to solve complex issues quickly with the help of task-oriented scenarios. You'll start by installing and configuring Ansible on Linux and macOS to automate monotonous and repetitive IT tasks and get to grips with concepts such as playbooks, inventories, and network modules. As you progress, you'll gain insight into the YAML syntax and learn how to port between Ansible versions. In addition to this, you'll also understand how Ansible enables you to orchestrate multi-layer environments such as networks, containers, and the cloud. By the end of this Ansible book, you'll be well - versed in writing playbooks and other related Ansible code to overcome just about all of your IT challenges, from infrastructure-as-code provisioning to application deployments, and even handling the mundane day-to-day maintenance tasks that take up so much valuable time.
Table of Contents (18 chapters)
1
Section 1: Learning the Fundamentals of Ansible
6
Section 2: Expanding the Capabilities of Ansible
11
Section 3: Using Ansible in an Enterprise

Summary

Ansible automation projects often start out small, but as people come to realize the power and simplicity of Ansible, both the code and the inventories tend to grow at an exponential pace (at least in my experience). It is important that in the push for greater automation, the Ansible automation code and infrastructure itself doesn't become another headache. By embedding a few good practices early on and applying them consistently throughout your automation journey with Ansible, you will find that managing your Ansible automation is simple and easy and is a true benefit to your technology infrastructure.

In this chapter, you learned about the best practices for directory layout that you should adopt for your playbooks and the steps you should adopt when working with cloud inventories. You then learned new ways of differentiating environments by OS type, as well as...