# TO CREATE USERS
- hosts: '{{host_name}}'
  remote_user: ec2-user
  become: yes
  vars:
   user_password: "{{ password }}"
   user_name: "{{ username }}"
  tasks:

#Adding a new user with the user module and jinja2 filters
  - name: Creating user "{{ user_name }}" with admin access
    user: name={{ user_name }} password={{ user_password|password_hash('sha512') }}

ansible-playbook xxx.yml -e "host_name=xxx username=xxx password=xxx"