system/tasks/usergroup.yml

---
- name: Create system user
  become: true
  ansible.builtin.user:
    name: '{{ item.name }}'
    system: true
    home: "{{ item.home | default('/') }}"
    shell: "{{ item.shell | default('/usr/bin/nologin') }}"
  with_items: '{{ system_user }}'

- name: Create system group
  ansible.builtin.group:
    name: '{{ item.name }}'
  with_items: '{{ system_group }}'
  become: true