## /etc/salt/master
nodegroups:
  salt-master-prod: 'salt.example.com'

## gitfs top.sls
base:
  '*':
    - salt.minion
  salt-master-prod:
    - match: nodegroup
    - salt.master

user@salt$ sudo salt -N 'salt-master-prod' test.ping
salt.example.com:
    True
user@salt$ sudo salt -N 'salt-master-prod' state.show_top
salt.example.com:
    ----------
    base:
        - infrastructure.salt.minion