pre_install() {
  /bin/true
}

post_install() {
  echo "Please, add httpd user and httpd group"
  /bin/true
}

pre_upgrade() {
  /bin/true
}

post_upgrade() {
  /bin/true
}

pre_remove() {
  /bin/true
}

post_remove() {
  echo "Please, remove httpd user and httpd group if it is not needed"
  /bin/true
}