---
- name: Check if user is in specified group
  hosts: all
  gather_facts: false
  become: true

  vars_prompt:
    - name: check_user
      prompt: "Enter the username to check"
      private: no

    - name: check_group
      prompt: "Enter the group to verify membership"
      private: no

  tasks:
    - name: Get groups for specified user
      ansible.builtin.command: "id -nG {{ check_user }}"
      register: user_groups
      changed_when: false
      failed_when: user_groups.rc != 0

    - name: Set fact if user is in group
      set_fact:
        user_in_group: "{{ check_group in user_groups.stdout.split() }}"

    - name: Report user group membership
      debug:
        msg: >
          User '{{ check_user }}' {{ 'IS' if user_in_group else 'IS NOT' }}
          in the '{{ check_group }}' group on {{ inventory_hostname }}.