Book Image

The Linux DevOps Handbook

By : Damian Wojsław, Grzegorz Adamowicz
3.5 (2)
Book Image

The Linux DevOps Handbook

3.5 (2)
By: Damian Wojsław, Grzegorz Adamowicz

Overview of this book

The Linux DevOps Handbook is a comprehensive resource that caters to both novice and experienced professionals, ensuring a strong foundation in Linux. This book will help you understand how Linux serves as a cornerstone of DevOps, offering the flexibility, stability, and scalability essential for modern software development and operations. You’ll begin by covering Linux distributions, intermediate Linux concepts, and shell scripting to get to grips with automating tasks and streamlining workflows. You’ll then progress to mastering essential day-to-day tools for DevOps tasks. As you learn networking in Linux, you’ll be equipped with connection establishment and troubleshooting skills. You’ll also learn how to use Git for collaboration and efficient code management. The book guides you through Docker concepts for optimizing your DevOps workflows and moves on to advanced DevOps practices, such as monitoring, tracing, and distributed logging. You’ll work with Terraform and GitHub to implement continuous integration (CI)/continuous deployment (CD) pipelines and employ Atlantis for automated software delivery. Additionally, you’ll identify common DevOps pitfalls and strategies to avoid them. By the end of this book, you’ll have built a solid foundation in Linux fundamentals, practical tools, and advanced practices, all contributing to your enhanced Linux skills and successful DevOps implementation.
Table of Contents (20 chapters)
1
Part 1: Linux Basics
6
Part 2: Your Day-to-Day DevOps Tools
12
Part 3: DevOps Cloud Toolkit

Ansible

In this section, we are going to introduce you to Ansible, our tool of choice when it comes to CaC.

Ansible is a tool written for managing the configuration of systems and devices. It is written in Python and its source code is freely available to anyone for downloading and modification (within the limits of its license, which is Apache License 2.0). The name “Ansible” comes from Ursula K. Le Guin’s book Rocannon’s World and denotes a device that allows instantaneous communication no matter the distance.

Some interesting characteristics of Ansible are set out here:

  • Modularity: Ansible is not a monolithic tool. Rather, it’s a core program with each task it knows how to perform written as a separate module—a library, if you will. Since this was the design from the start, it produced a clean API that anyone can use to write their own modules.
  • Idempotence: No matter how many times you perform a configuration, the result...