Ansible playbook to add user

useradd.yml

# This playbook adds users to target linux servers with 'adm' group
# Author: Artem Smirnov <[email protected]>

# Using:

# 1. You need to add user certificates to './files' dir or to ./,
# where it has a next name format '<username>.pub'
# <username> will be used as username on servers.

# 2. ansible-playbook useradd.yml -i hosts -e 'target=<some_targets>'

# Required depedencies:
# ansible-galaxy collection install community.general ansible.posix

# It doesn't support --diff option due to user_module
# Additional information about user_module and authorized_key_module, you can find below:
# https://docs.ansible.com/ansible/latest/collections/ansible/builtin/user_module.html
# https://docs.ansible.com/ansible/2.3/authorized_key_module.html
---
- hosts: '{{ target }}'
  gather_facts: "False"
  become: yes
  tasks:
    - name: Add users to remote hosts
      ansible.builtin.user:
        name: "{{ item | basename | regex_replace('.pub','') }}"
        password: "{{ lookup('community.general.random_string') | password_hash('sha512', 'mysecretsalt') }}"
        shell: /bin/bash
        state: present
        system: yes
        append: yes
        groups:
        - adm
      loop: "{{ lookup('fileglob', '*.pub', wantlist=True) }}"

    - name: Set authorized key taken from files
      ansible.posix.authorized_key:
        user: "{{ item | basename | regex_replace('.pub','') }}"
        state: present
        key: "{{ lookup('file', item) }}"
      loop: "{{ lookup('fileglob', '*.pub', wantlist=True) }}"