lab-ansible/roles/vm-common/tasks/firewall.yml

# vim: ft=yaml.ansible
# code: language=ansible
---
- name: Move main LAN and VPN networks to zone 'drop'
  ansible.posix.firewalld:
    zone: drop
    source: "{{ item }}"
    permanent: true
    state: enabled
  loop:
    - 192.168.1.0/24
    - 192.168.8.0/24

- name: Move lab network to zone 'dmz'
  ansible.posix.firewalld:
    zone: dmz
    source: 192.168.17.0/24
    permanent: true
    state: enabled

- name: Move internal network to zone 'internal'
  ansible.posix.firewalld:
    zone: internal
    source: 10.2.0.0/16
    permanent: true
    state: enabled

- name: Default deny incoming connections to SSH port in zones 'dmz' and 'internal'
  ansible.posix.firewalld:
    zone: "{{ item }}"
    service: ssh
    permanent: true
    state: disabled
  loop:
    - dmz
    - internal

# When sapt-labx-ctl01 is deployed
# - name: Allow incoming connections from jump host to SSH port in zone 'dmz'
#   ansible.posix.firewalld:
#     zone: dmz
#     source: "{{ hostvars['sapt-labx-ctl01'].ansible_host }}"
#     service: ssh
#     permanent: true
#     state: enabled

# Until sapt-labx-ctl01 is deployed
- name: Allow incoming connections to SSH port in zone 'drop'
  ansible.posix.firewalld:
    zone: drop
    service: ssh
    permanent: true
    state: enabled

- name: Firewall rules for production and staging
  loop:
    - prod
    - stage
  loop_control:
    loop_var: env
  block:
    - name: Allow incoming connections from app servers to PostgreSQL port in zone 'internal'
      ansible.posix.firewalld:
        zone: internal
        source: "{{ hostvars[item].internal_ipv4 }}"
        service: postgresql
        permanent: true
        state: enabled
      loop: "{{ groups['app_' + env] }}"
      when: hostname in groups['db_' + env]

- name: Flush handlers
  ansible.builtin.meta: flush_handlers