Want to set a username and password in Puppet? Keep getting "You reset the password for a user 8m times" in your logs? This may be the gist for you! Only really works if you've got a consistent user salt across all your boxes :)

init.pp

define createuser (
  $username = $title,
  $password = 'defaultpw',
  $groups = ['users'],
  $home = "/home/${username}"
  $shell = '/bin/bash') {
  
  user { $username:
    ensure     => present,
    password   => generate(
      '/bin/sh',
      '-c',
      "mkpasswd -m sha-512 ${password} \$(</etc/shadow awk -v user=${username} -F : 'user == \$1 {print \$2}' | cut -d '$' -f 3) | tr -d '\n'"
    ),
    home       => $home,
    groups     => $groups,
    shell      => $shell,
    managehome => yes
  }
}