post_install() {
  getent group neutron &>/dev/null || groupadd neutron >/dev/null
  getent passwd neutron &>/dev/null || useradd  -d /var/lib/neutron -g neutron -s /bin/false neutron >/dev/null

  chmod 755 /etc/neutron
  chown -R root:neutron /etc/neutron
  chown root:root /etc/neutron/rootwrap.conf
  chown -R root:root /etc/neutron/rootwrap.d
  chown neutron:neutron /var/lib/neutron
  chown neutron /var/log/neutron
}

post_upgrade() {
  post_install
}

pre_remove() {
  getent passwd neutron &>/dev/null && userdel neutron >/dev/null
  getent group neutron &>/dev/null && groupdel neutron >/dev/null
  true
}