- name: Update apt cache
  apt:
   update_cache: yes
- name: Install bind package requirements
  apt:
    name: "{{ bind_packages }}"
    state: present
    install_recommends: no
- name: Ensure BIND9 starts with IPv4 only (-4)
  lineinfile:
    path: /etc/default/named
    regexp: '^OPTIONS='
    line: 'OPTIONS="-u bind -4"'
    backrefs: yes
  notify: restart-dns
- name: Create directory
  file:
    path: "{{ item.path }}"
    state: directory
    owner: "{{ item.group }}"
    group: "{{ item.group }}"
    mode: "{{ item.mode }}"
  loop: "{{ directory }}"
- name: Copy required files and scripts
  copy:
    src: "{{ item.src }}"
    dest: "{{ item.dest }}"
    owner: "{{ item.group }}"
    group: "{{ item.group }}"
    mode: "{{ item.mode }}"
  loop: "{{ required_files }}"
- name: Deploy BIND config templates
  template:
    src: "{{ item.src }}"
    dest: "{{ item.dest }}"
    owner: root
    group: bind
    mode: "{{ item.mode }}"
  loop: "{{ bind_config_templates }}"
  notify: restart-dns