What’s the difference between Ansible Playbook and Roles?

Question

Q:

What’s the difference between Ansible Playbook and Roles?

Answer 1

Roles	Playbooks
Roles are reusable subsets of a play.	Playbooks contain Plays.
A set of tasks for accomplishing certain role.	Mapps among hosts and roles.
Example: common, webservers.	Example: site.yml, fooservers.yml, webservers.yml.