---
- name: Tests
  hosts: ipaserver
  become: true
  gather_facts: false

  vars:
    slice_size: 500
  tasks:
  - name: Include users_present.json
    include_vars:
      file: users_present.json
  - debug:
      msg: "{{ users | length }}"
  - name: Users present
    ipauser:
      ipaadmin_password: SomeADMINpassword
      users: "{{ users[item:item+slice_size] }}"
    loop: "{{ range(0,users | length, slice_size) | list }}"