# Backup bind9 config and zone files for potential rollback

- name: Ensure dir {{bind9_zone_dir}} exists
  become: true
  file:
    path: /srv/dns
    owner: bind
    group: bind
    mode: u+rwx
    state: directory
  register: dns_dir_result

- set_fact:
    bind9_initial_setup: "{{dns_dir_result.changed}}"

- name: List all existing zone files
  become: true
  shell: "find {{ bind9_zone_dir }} -type f -exec basename {} \\;"
  changed_when: false
  register: existing_zones_result


- debug: "msg={{bind9_initial_setup}}"
- debug: "msg={{existing_zones_result}}"

- name: Backup /etc/bind/named.conf.local
  become: true
  copy:
    remote_src: true
    src: /etc/bind/named.conf.local
    dest: /etc/bind/named.conf.local.bak
  when: not bind9_initial_setup 


- name: Backup existing zone files
  shell: "mv {{bind9_zone_dir}}/{{item}} {{bind9_zone_dir}}/{{item}}.bak"
  with_items: "{{existing_zones_result.stdout_lines | default([])}}"
  when: not bind9_initial_setup