- name: Dump hosts to json file
  command:
    cmd: ansible-inventory -i hosts.txt --list --output hosts.json
  delegate_to: localhost

- name: Json file to variable
  include_vars:
    file: hosts.json
    name: hosts

- debug:
    msg: "{{ item }}/path/file.txt"
  loop: "{{ hosts.queue_servers.children }}"