pre_install() {
  getent group puppet &>/dev/null || groupadd -r puppet -g 52
  getent passwd puppet &>/dev/null || useradd -r -u 52 -g puppet \
    -d /var/lib/puppet -s /usr/bin/nologin -c "Puppet" puppet
  gem install --no-user-install --no-document xmlrpc
}

pre_upgrade() {
  pre_install
}

pre_remove() {
  if [[ -f /var/run/puppet/master.pid ]]; then
    systemctl stop puppetmaster
  fi

  if [[ -f /var/run/puppet/agent.pid ]]; then
    systemctl stop puppet
  fi
}