The Ansible roles page is a part of the Ansible plugin and will only exist if this plugin is installed on your orcharhino.
The Ansible roles page can be accessed via the configure menu:
Configure > Ansible > Roles
The Ansible roles page forms a part of orcharhino’s Ansible support. Ansible is one option for configuration management within orcharhino.
An Ansible role is a collection of tasks. Individual tasks describe a single state of affairs that Ansible should achieve when the task is run. Ensure to import any Ansible roles that you want to use within orcharhino.
Refer to the Ansible usage guide for more information.
If you want to use Ansible playbooks instead, consider using the application centric deployment plugin (short: ACD) to automatically provision and configure hosts based on an Ansible playbook.