What are the advantages and disadvantages of using roles in an Ansible playbook?

Advantages of using roles in Ansible playbook:

• Code reuse: roles allow structuring tasks, variables, and files, making reuse easier.
• Simplified maintenance: roles make playbooks more readable and modular.
• Logic isolation: each role is responsible for specific functionality.
• Ease of collaboration: roles can be easily shared and used across different projects.

Disadvantages:

• Complexity for beginners: understanding the structure of roles requires time.
• Redundancy: for simple tasks, roles may be unnecessary.
• Potential duplication: poorly designed roles can lead to code duplication.

Example of using a role in a playbook:

- hosts: webservers
  roles:
    - nginx