- hosts: ankeborg
  become: true
  vars:
    mail_hostname: "{{ inventory_hostname }}"
    canonical_name: "{{ inventory_hostname_short }}.nixnet.\
      example.tld"

  pre_tasks:
    - name: Update cache on Debian/Ubuntu
      apt:
        update_cache: yes
      when: ansible_os_family == 'Debian'
    - name: Update cache on RedHat/CentOS/Fedora
      dnf:
        update_cache: yes
      when: ansible_os_family == 'RedHat'

  roles:
    - base
    - postfix-v2