---
- hosts: 127.0.0.1
  connection: local
  user: ezra
  roles:
    - xubuntu_1710
    - core
    - xmonad

---
- hosts: 127.0.0.1
  connection: local
  user: ezra
  roles:
    - xubuntu_1710
    #- core
    #- xmonad

Comment out core and xmonad roles
Comment out core and xmonad roles
