Browse Library
Sign In Start Free Trial
Close icon Search icon
Account
Browse Library Advanced Search Sign In Start Free Trial

Add to playlist

Create a Playlist

Modal Close icon
You need to login to use this feature.
  • Book Overview & Buying Mastering Ansible, Second Edition
  • Table Of Contents Toc
  • Feedback & Rating feedback
Mastering Ansible, Second Edition

Mastering Ansible, Second Edition

By : Keating
3.8 (8)
Buy this Book
close
close
Mastering Ansible, Second Edition

Mastering Ansible, Second Edition

3.8 (8)
By: Keating

Overview of this book

This book provides you with the knowledge you need to understand how Ansible 2.1 works at a fundamental level and leverage its advanced capabilities. You'll learn how to encrypt Ansible content at rest and decrypt data at runtime. You will master the advanced features and capabilities required to tackle the complex automation challenges of today and beyond. You will gain detailed knowledge of Ansible workflows, explore use cases for advanced features, craft well thought out orchestrations, troubleshoot unexpected behaviour, and extend Ansible through customizations. Finally, you will discover the methods used to examine and debug Ansible operations, helping you to understand and resolve issues. By the end of the book, the readers will be able to unlock the true power of the Ansible automation engine and will tackle complex real world actions with ease.
Table of Contents (10 chapters)
close
close
close
Preface
Preface
What this book covers
What you need for this book
Who this book is for
Conventions
Reader feedback
Customer support
Free Chapter
1
1. System Architecture and Design of Ansible
1. System Architecture and Design of Ansible
Ansible version and configuration
Inventory parsing and data sources
Playbook parsing
Module transport and execution
Variable types and location
Accessing external data
Variable precedence
Summary
2
2. Protecting Your Secrets with Ansible
2. Protecting Your Secrets with Ansible
Encrypting data at rest
Protecting secrets while operating
Summary
3
3. Unlocking the Power of Jinja2 Templates
3. Unlocking the Power of Jinja2 Templates
Control structures
Data manipulation
Comparing values
Summary
4
4. Controlling Task Conditions
4. Controlling Task Conditions
Defining a failure
Defining a change
Error recovery
Summary
5
5. Composing Reusable Ansible Content with Roles
5. Composing Reusable Ansible Content with Roles
Task, handler, variable, and playbook include concepts
Roles
Summary
6
6. Minimizing Downtime with Rolling Deployments
6. Minimizing Downtime with Rolling Deployments
In-place upgrades
Expanding and contracting
Failing fast
Minimizing disruptions
Serializing single tasks
Summary
7
7. Troubleshooting Ansible
7. Troubleshooting Ansible
Playbook logging and verbosity
Variable introspection
Debugging code execution
Summary
8
8. Extending Ansible
8. Extending Ansible
Developing modules
Developing plugins
Developing dynamic inventory plugins
Contributing to the Ansible project
Summary
9
9. Infrastructure Provisioning
chevron up
9. Infrastructure Provisioning
Managing cloud infrastructure
Interacting with Docker containers
Previewing of Ansible container
Summary

Previewing of Ansible container

Ansible container is a set of tools that build upon concepts introduced earlier in this chapter to provide a comprehensive workflow for container development, testing, and deployment. It is currently a tech preview, under active development. As it is a preview, the interfaces provided may change quickly.

Ansible container does not get installed with Ansible at the time of writing, and must be installed separately. It can be installed from pypi as the package name ansible-container, or installed from the source repository (https://github.com/ansible/ansible-container.git).

With Ansible container, one can define one or more services to containerize. These are defined in a YAML file that closely follows the Docker compose version 1 schema (support version 2 schema will be in the next release of Ansible container). Each service defined becomes a container, and is exposed as an Ansible host. These hosts are used by a playbook file to perform all the necessary configuration...

Unlock full access

Continue reading for free

A Packt free trial gives you instant online access to our library of over 7000 practical eBooks and videos, constantly updated with the latest in tech
Start a 7-day FREE trial
End of Section 1
Next Section
bookmark search playlist download
font-size

Change the font size

margin-width

Change margin width

day-mode

Change background colour

Close icon Search
Country selected
Close icon Your notes and bookmarks

Delete Bookmark

Modal Close icon
Are you sure you want to delete it?
Cancel
Yes, Delete

Confirmation

Modal Close icon
claim successful
Order Page Read Now

Buy this book with your credits?

Modal Close icon
Are you sure you want to buy this book with one of your credits?
Close
YES, BUY