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---
- name: install bind
  apt:
    name: bind9
    state: present

- name: set bind options
  blockinfile:
    path: /etc/bind/named.conf.options
    block: |
      {% if bind_option_empty_zones_enable is defined %}
              empty-zones-enable {% if bind_option_empty_zones_enable %}yes{% else %}no{% endif %};
      {% endif %}
      {% if bind_option_allow_query is defined %}

              allow-query {
      {%   for item in bind_option_allow_query %}
                      {{ item }};
      {%   endfor %}
              };
      {% endif %}
      {% if bind_option_allow_recursion is defined %}

              allow-recursion {
      {%   for item in bind_option_allow_recursion %}
                      {{ item }};
      {%   endfor %}
              };
      {% endif %}
      {% if bind_option_allow_update is defined %}

              allow-update {
      {%   for item in bind_option_allow_update %}
                      {{ item }};
      {%   endfor %}
              };
      {% endif %}
      {% if bind_option_notify is defined %}

              notify {{ bind_option_notify }};
      {% endif %}
      {% if bind_option_also_notify is defined %}

              also-notify {
      {%   for item in bind_option_also_notify %}
                      {{ item }};
      {%   endfor %}
              };
      {% endif %}
      {% if bind_option_allow_transfer is defined %}

              allow-transfer {
      {%   for item in bind_option_allow_transfer %}
                      {{ item }};
      {%   endfor %}
              };
      {% endif %}
    insertbefore: '};'
    marker: "        // {mark} ansible managed block"
  notify: reload bind


- name: add empty .onion zone
  when: bind_empty_onion_zone
  copy:
    dest: /etc/bind/named.conf.onion
    content: |
      // block .onion addresses
      zone "onion" {
              type master;
              file "/etc/bind/db.empty";
              zone-statistics no;
              notify no;
      };
  notify: reload bind

- name: remove empty .onion zone
  when: not bind_empty_onion_zone
  file:
    path: /etc/bind/named.conf.onion
    state: absent
  notify: reload bind

- name: enable/disable empty .onion zone
  lineinfile:
    path: /etc/bind/named.conf
    line: 'include "/etc/bind/named.conf.onion";'
    state: "{{ bind_empty_onion_zone is defined | ternary('present', 'absent') }}"
  notify: reload bind


- name: add stats configuration
  when: bind_stats_channels is defined
  template:
    src: stats.j2
    dest: /etc/bind/named.conf.stats
  notify: reload bind

- name: remove stats configuration
  when: bind_stats_channels is not defined
  file:
    path: /etc/bind/named.conf.stats
    state: absent
  notify: reload bind

- name: enable/disable stats configuration
  lineinfile:
    path: /etc/bind/named.conf
    line: 'include "/etc/bind/named.conf.stats";'
    state: "{{ bind_stats_channels is defined | ternary('present', 'absent') }}"
  notify: reload bind


- name: add slave zone configuration
  when: bind_slave_zones is defined
  template:
    src: slave-zones.j2
    dest: /etc/bind/named.conf.slave-zones
  notify: reload bind

- name: remove slave zone configuration
  when: bind_slave_zones is not defined
  file:
    path: /etc/bind/named.conf.slave-zones
    state: absent
  notify: reload bind

- name: enable/disable slave zone configuration
  lineinfile:
    path: /etc/bind/named.conf
    line: 'include "/etc/bind/named.conf.slave-zones";'
    state: "{{ bind_slave_zones is defined | ternary('present', 'absent') }}"
  notify: reload bind


- name: add master zone configuration
  when: bind_master_zones is defined
  template:
    src: master-zones.j2
    dest: /etc/bind/named.conf.master-zones
  notify: reload bind

- name: remove master zone configuration
  when: bind_master_zones is not defined
  file:
    path: /etc/bind/named.conf.master-zones
    state: absent
  notify: reload bind

- name: install master zone files (from local file)
  when: bind_master_zones is defined
  loop: "{{ bind_master_zones | dict2items | selectattr('value.file', 'defined') | list }}"
  loop_control:
    label: "{{ item.key }}"
  copy:
    dest: "/etc/bind/db.{{ item.key }}"
    src: "{{ item.value.file }}"
  notify: reload bind

- name: install master zone files (from content)
  when: bind_master_zones is defined
  loop: "{{ bind_master_zones | dict2items | selectattr('value.content', 'defined') | list }}"
  loop_control:
    label: "{{ item.key }}"
  copy:
    dest: "/etc/bind/db.{{ item.key }}"
    content: "{{ item.value.content }}"
  notify: reload bind

- name: enable/disable master zone configuration
  lineinfile:
    path: /etc/bind/named.conf
    line: 'include "/etc/bind/named.conf.master-zones";'
    state: "{{ bind_master_zones is defined | ternary('present', 'absent') }}"
  notify: reload bind