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

Advanced topics

In this section, we will show you how to handle advanced Ansible features and techniques for debugging and automatically checking your playbooks for possible errors.

Debugging

In order to debug issues with your Ansible playbook runs, it is often useful to increase the verbosity level to get more detailed output about what Ansible is doing. Ansible has four verbosity levels: -v, -vv, -vvv, and -vvvv. The more vs you add, the more verbose the output becomes.

By default, Ansible runs with -v, which provides basic information about the tasks that are executed. However, if you are experiencing issues with your playbook, it may be helpful to increase the verbosity level to get more detailed output. For example, using -vv will provide additional information about the playbooks, roles, and tasks that are being executed, while using -vvv will also show the tasks that Ansible is skipping.

To increase the verbosity level of an Ansible playbook run, simply add one...