create_users.yml

---
- name: Create Users with given yml file nested_items
  hosts: all
  become: yes
  gather_facts: no
  vars:
     group:
         - dev
         - prod
  vars_files:
         - user_list.yml
  tasks:
  - yum:
      name: expect
      state: latest
    ignore_errors: yes
  - group:
       name: "{{ item }}"
       state: present
    loop: "{{ group }}"
  - user:
      name: "{{ item.0.name }}"
      password: "{{ item.0.pw |password_hash('SHA512') }}"
      group: dev
      groups: "{{ items.1 }}"
    when: 
       - "item.0.job  == 'dev'"
       - "inventory_hostname in groups['webservers']"
    with_nested:
          - "{{ users }}"
          - "{{ groups }}"
  - user:
      name: "{{ item.0.name }}"
      password: "{{ item.0.pw |password_hash('SHA512') }}"
      group: prod
      groups: "{{ items.1 }}"
    when: 
       - "item.0.job  == 'prod'"
       - "inventory_hostname in groups['dbservers']"
    with_nested:
          - "{{ users }}"
          - "{{ groups }}"