You're reading from Mastering Ansible, 4th Edition - Fourth Edition

Product typeBook

Published inDec 2021

PublisherPackt

ISBN-139781801818780

Edition4th Edition

Tools

Ansible Ansible

Concepts

Configuration Management

Authors (2):

James Freeman

Jesse Keating

View More author details

Data manipulation

While control structures influence the flow of template processing, another tool exists that can help you to modify the contents of a variable. This tool is called a filter. Filters are the same as small functions, or methods, that can be run on the variable. Some filters operate without arguments, some take optional arguments, and some require arguments. Filters can be chained together as well, where the result of one filter action is fed into the next filter and then the next. Jinja2 comes with many built-in filters, and Ansible extends these with many custom filters that are available to you when using Jinja2 within templates, tasks, or any other place Ansible allows templating.

Syntax

A filter is applied to a variable by way of the pipe symbol, |, followed by the name of the filter, and then any arguments for the filter inside parentheses. There can be a space between the variable name and the pipe symbol, as well as a space...

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Mastering Ansible, 4th Edition - Fourth Edition

Published in: Dec 2021Publisher: PacktISBN-13: 9781801818780

Authors (2)

James Freeman

James Freeman is an accomplished IT professional with over 25 years' experience in the technology industry. He has more than a decade of first-hand experience in solving real-world enterprise problems in production environments using Ansible, open source, and AWS. As part of this work, he frequently introduces Ansible as a new technology to businesses and CTOs for the first time. In addition, he has co-authored five books and one video training course on Ansible, facilitated bespoke Ansible workshops and training sessions, and presented at both international conferences and meetups on Ansible.
Read more about James Freeman

Jesse Keating

Jesse Keating is an accomplished Ansible user, contributor, and presenter. He has been an active member of the Linux and open source community for over 15 years. He has firsthand experience involving a variety of IT activities, software development, and large-scale system administration. He has presented at numerous conferences and meetups, and has written many articles on a variety of topics.
Read more about Jesse Keating

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