What components does the role consist of, and which folders and files does it include?

The role in Ansible consists of the following components:

• defaults: Default variables for the role.
• vars: Other variables specific to the role.
• tasks: Main tasks performed by the role.
• handlers: Tasks triggered when resource states change.
• files: Static files that need to be copied.
• templates: Template files processed by Jinja2.
• meta: Role information, dependencies.

Example directory structure of a role:

<role>/
├── defaults/
│   └── main.yml
├── handlers/
│   └── main.yml
├── tasks/
│   └── main.yml
├── files/
├── templates/
├── vars/
│   └── main.yml
└── meta/
    └── main.yml

Main files:

• defaults/main.yml: Defines variables with the lowest priority.
• vars/main.yml: Defines variables with higher priority than defaults.
• tasks/main.yml: The main entry point for executing role tasks.
• handlers/main.yml: Contains handlers called by tasks.
• meta/main.yml: Describes role dependencies and other meta-information.