hac/ansible/roles/knot_resolver/tasks/main.yml

---
- name: Install knot repository
  ansible.builtin.apt:
    deb: https://secure.nic.cz/files/knot-resolver/knot-resolver-release.deb
  notify:
    - Package cache update

- name: Install knot resolver
  ansible.builtin.apt:
    name: knot-resolver
  notify:
    - Enable knot resolver
    - Restart knot resolver

- name: Configure
  ansible.builtin.template:
    src: kresd.conf.j2
    dest: /etc/knot-resolver/kresd.conf
    mode: "0644"
  notify:
    - Restart knot resolver

- name: Allow port 53 (DNS)
  community.general.ufw:
    rule: allow
    port: "{{ item.port }}"
    proto: "{{ item.proto }}"
  with_items:
    - { port: "53", proto: "tcp" }
    - { port: "53", proto: "udp" }