#!/usr/bin/env ansible-playbook
---
- hosts:
    - infra
    - dns
    - ntp
    - prometheus
    - radius
    - edge
    - dhcp
    - ldap
    - isp
    - vpn
  vars:
    systemd_link__hosts:
      vpn-1.back.infra.auro.re:
        adm0: 02:00:00:3b:74:20
        vpn0: 02:00:00:b5:ca:c7
        pub0: 02:00:00:e3:65:49
  roles:
    - systemd_link
...