---
- name: "Ensure needed packages"
  become: yes
  package:
    name: pigz

- name: "Create destination backup directory"
  become: yes
  ansible.builtin.file:
    path: '{{ backup_dest_dir }}'
    state: directory
    mode: '0755'
    owner: postgres
    group: postgres

# there is no ansible module already in place
# so using shell module
- name: "Creating pg_basebackup ... + doing async check if successful or not"
  become: yes
  become_user: postgres
  shell: |
      set -o pipefail
      /usr/bin/pg_basebackup -Ft -X fetch -D - | pigz -p 4 > {{ backup_dest_dir }}/basebackup_{{ current_date_time }}.tar.gz
  args:
    executable: /bin/bash
  async: 3600 # allows duration for task up to 3600sec
  poll: 30 # rechecks every 30sec if task has finished yet
  changed_when: false

# just to make it easier to detect potential failures.
# maybe: can be removed later
- name: "Create STATUS file for successful backup"
  become: yes
  file:
    path: '{{ backup_status_file }}_{{ current_date_time }}'
    state: touch
    mode: '0644'
    owner: postgres
    group: postgres

- name: "Prepare backup dir..."
  become: yes
  ansible.builtin.file:
    path: '{{ backup_dest_dir }}'
    owner: '{{ backupuser_user_name }}'
    group: '{{ backupuser_user_name }}'
    recurse: yes