pre_install() {
  # create user and group
  /usr/bin/getent group linx &> /dev/null || /usr/bin/groupadd -r linx &> /dev/null
  /usr/bin/getent passwd linx &> /dev/null || /usr/bin/useradd -r -g linx -s /usr/bin/nologin -d /usr/share/webapps/linx-server linx &> /dev/null
}

post_install() {
  # chown directories
  /usr/bin/chown -R linx:linx /usr/share/webapps/linx-server
}

post_remove() {
  # remove user and group
  /usr/bin/getent passwd linx &> /dev/null && /usr/bin/userdel linx &> /dev/null
}