#linux_server.yml
---
- hosts: testmachines
  remote_user: root
  roles:
   - linux

#roles/linux/main.yml
---
- include: usersetup.yml
- include: enableautologon.yml

#roles/linux/tasks/usersetup.yml
---
- name: User Setup
  vars_files:
   - main.yml
  tasks:
   - user: name=root password="{{password}}"
   - user: name=user password="{{password}}"