Book Image

Mastering Ansible, 4th Edition - Fourth Edition

By : James Freeman, Jesse Keating
Book Image

Mastering Ansible, 4th Edition - Fourth Edition

By: James Freeman, Jesse Keating

Overview of this book

Ansible is a modern, YAML-based automation tool (built on top of Python, one of the world’s most popular programming languages) with a massive and ever-growing user base. Its popularity and Python underpinnings make it essential learning for all in the DevOps space. This fourth edition of Mastering Ansible provides complete coverage of Ansible automation, from the design and architecture of the tool and basic automation with playbooks to writing and debugging your own Python-based extensions. You'll learn how to build automation workflows with Ansible’s extensive built-in library of collections, modules, and plugins. You'll then look at extending the modules and plugins with Python-based code and even build your own collections — ultimately learning how to give back to the Ansible community. By the end of this Ansible book, you'll be confident in all aspects of Ansible automation, from the fundamentals of playbook design to getting under the hood and extending and adapting Ansible to solve new automation challenges.
Table of Contents (18 chapters)
Section 1: Ansible Overview and Fundamentals
Section 2: Writing and Troubleshooting Ansible Playbooks
Section 3: Orchestration with Ansible


  1. Jinja2 conditionals can be used to render content inline with a playbook task.

    a) True

    b) False

  2. With of the following Jinja2 constructs will print an empty line each time it is evaluated?

    a) {% if loop.first -%}

    b) {% if loop.first %}

    c) {%- if loop.first -%}

    d) {%- if loop.first %}

  3. Jinja2 macros can be used to do which of the following?

    a) Define a sequence of keystrokes that need to be automated.

    b) Define a function for automating spreadsheets with Ansible.

    c) Define a function that gets called regularly from elsewhere in the template.

    d) Macros are not used in Jinja2.

  4. Which of the following is a valid expression for chaining two Jinja2 filters together to operate on an Ansible variable?

    a) {{ value.replace('A', 'B').lower }}

    b) {{ value | replace('A', 'B') | lower }}

    c) value.replace('A', 'B').lower

    d) lower(replace('A', 'B',value))

  5. Jinja2 filters always have mandatory arguments.