Create nodegroups master configuration:
  file.managed:
    - name: /etc/salt/master.d/nodegroups.conf
    - source: salt://salt-master/files/etc/salt/master.d/nodegroups.conf
    - user: root
    - group: root
    - mode: "0644"

#restart master to load nodegroups:
#  service.running:
#    - name: salt-master
#    - watch:
#      - file: Create nodegroups master configuration