Variables and facts

Anyone who has ever attempted to create some sort of automation code, whether via bash or Perl scripts, knows that being able to define variables is an essential component. Like other programming languages Ansible does contain features such as variable substitution.

Variables

To start, let's first define the meaning of variables and use in the event this is a new concept.

Variable (computer science), a symbolic name associated with a value and whose associated value may be changed

Using variables allows you to set a symbolic placeholder in your automation code that you can substitute values for on each execution. Ansible accommodates defining variables within your playbooks and roles in various ways. When dealing with OpenStack ...

Get OpenStack Administration with Ansible 2 - Second Edition now with the O’Reilly learning platform.

O’Reilly members experience books, live events, courses curated by job role, and more from O’Reilly and nearly 200 top publishers.