How would you distribute roles tasks in Ansible for infrastructure automation?

In Ansible, roles are used to structure and reuse automation code. Task distribution in roles is usually based on functional criteria:

• roles/common — basic settings, common for all servers (e.g., installing common packages, configuring users).
• roles/webserver — installing and configuring a web server (e.g., nginx or Apache).
• roles/database — installing and configuring a database.
• roles/firewall — setting up firewall rules.

Each role contains its own tasks, files, templates, and variables, which simplifies maintenance and scaling of the infrastructure. This approach allows easy combination of roles in playbooks for different server types.