cpx-ansible/roles/os_config/tasks/firewall.yml

# vim: ft=yaml.ansible
---
- name: Allow necessary ports in UFW
  community.general.ufw:
    rule: allow
    port: "{{ item.port }}"
    proto: "{{ item.proto | default('tcp') }}"
  loop:
    - port: '22'    # SSH
    - port: '80'    # HTTP
    - port: '443'   # HTTPS
    - port: '5223'  # SMP server
    - port: '5443'  # XFTP server
    - port: '10000' # Jitsi Videobridge
      proto: udp

- name: Enable UFW
  community.general.ufw:
    state: enabled
    policy: deny