Ansible Roles Overview

In this lesson, you will learn about Ansible Roles, a feature for efficient and organized Ansible playbooks. By understanding roles, you'll be able to structure large playbooks and re-use code across different projects. This lesson will introduce the concept of roles, their structure, and how to implement them in your Ansible playbooks.

Understanding Ansible Roles

Roles in Ansible are a way of grouping related tasks and other resources together. They are essentially frameworks for fully independent or interdependent collections of variables, tasks, files, templates, and modules. The primary goal of roles is to facilitate playbook organization and reusability. This is particularly useful when managing complex playbooks, as roles can be used to break down the configuration into manageable sections.

A typical role directory structure might look like this:

• tasks: Contains the main list of tasks to be executed by the role.
• handlers: Contains handlers, which may be used by this role or even anywhere outside this role.
• defaults: Default variables for the role.
• vars: Other variables for the role.
• files: Contains files which can be deployed via this role.
• templates: Contains templates which can be deployed via this role.
• meta: Defines some meta data for this role.

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There can be even more folders included in a role directory for more advanced usage of Ansible, like library, module_utils, lookup_plugins. These go beyond the scope of this course but you can learn more about these at the official Ansible documentation if you have a need for such advance configuration.

Here is a link to Ansibles official docs on Roles if you are curious. Again, probably not needed for 95% of Ansible's use cases but they do exist so I want you to be aware of them.

Directory Structure and Their Purposes

1. **tasks…