ansible-roles/apt-repositories/tasks/backports.yml

---

- name: Backports sources list is installed
  template:
    src: '{{ ansible_distribution_release }}_backports.list.j2'
    dest: /etc/apt/sources.list.d/backports.list
    force: yes
    backup: yes
    mode: "0640"
  notify: apt update

- name: Backports configuration
  copy:
    src: '{{ ansible_distribution_release }}_backports_preferences'
    dest: /etc/apt/preferences.d/backports
    force: yes
    backup: yes
    mode: "0640"
  notify: apt update