# create backup copies of system files on control node
#
#   https://www.freekb.net/Article?id=759
#   https://docs.ansible.com/ansible/latest/collections/ansible/builtin/copy_module.html
#   https://docs.ansible.com/ansible/latest/collections/ansible/builtin/file_module.html
#   https://docs.ansible.com/ansible/latest/collections/ansible/builtin/copy_module.html
#   https://phoenixnap.com/kb/ansible-check-if-file-exists
#   https://docs.ansible.com/ansible/latest/playbook_guide/playbooks_variables.html#registering-variables
#   https://docs.ansible.com/ansible/latest/playbook_guide/playbooks_conditionals.html
#
#   https://www.howtouselinux.com/post/ansible-copy-module-examples-to-copy-file-to-remote-server
#   https://docs.ansible.com/ansible/latest/plugins/become.html
#   https://docs.ansible.com/ansible/latest/playbook_guide/playbooks_privilege_escalation.html
#
#   had to run the command like so:
#
#     ansible-playbook 10-playbook-copy-system-files-on-node.yml --ask-become-pass
#     
#        -or-
#
#     ansible-playbook 10-playbook-copy-system-files-on-node.yml -K
#
---
- name: "10 - custom ansible - backup system files on node"
  hosts: dev
  tasks:
  - name: check backup directory status
    ansible.builtin.stat:
      path: "{{ backup_etc_dir }}"
    register: backup_dir
    tags: ['backup_dir_status']

  - name: create backup directory if it does not exist
    ansible.builtin.file:
      path: "{{ backup_etc_dir }}"
      state: directory
    become: true
    become_user: root
    when: backup_dir.stat.isdir is not defined
    tags: ['create_backup_dir']

  - name: backup of system files
    ansible.builtin.copy:
      src: /etc/{{ item  }}
      remote_src: true
      dest: "{{ backup_etc_dir }}/"
      mode: preserve
    with_items:
      - hosts.allow
      - hosts.deny
      - inetd.conf
      - sudoers
      - hosts
      - fstab
      - inittab
    become: true
    become_user: root
    when: backup_dir.stat.isdir is defined
    tags: ['backup_files']