backup.yml

---
- hosts: all
  vars:
    backup_dir: /Users/orjan/Code/ica/elk/backup
  tasks:
    - name: Create fake backup # With a human reable name e.g. 20200420T215229
      file: 
        path: "{{ backup_dir }}/{{ ansible_date_time.iso8601_basic_short }}"
        state: directory
    # An extra thing would be to write, ansible_date_time.iso8601_basic_short to a file in the,
    # backup directory so we can find it. Another option would be to have a symlink from latest folder
    - name: Find backups # All files in the folder
      find:
        paths: "{{ backup_dir }}"
        file_type: directory
      register: result
    - name: Filter out old backups # Sort by modification date -> select path -> all except 2 newest
      set_fact:
        old_backups: "{{ (result.files|
                      sort(attribute='mtime')|
                      map(attribute='path')|
                      list)[0:-2] }}"
                      # One option would be to sort by path since it should sortable
    - debug: var=old_backups
    - name: Remove old backups
      file:
        path: "{{ item }}"
        state: absent
      with_items: "{{ old_backups }}"