post_install() {
  cat <<- EOF
    ==> please read configuration instructions at /usr/share/doc/pihole/configuration
    ==> lighttpd config file is changed. please uninstall and reinstall following configuration steps.
    ==> first install/update run...
EOF
  chown -R http.http /srv/http/pihole
  systemd-tmpfiles --create pi-hole.conf
  /usr/bin/gravity.sh > /dev/null
}

post_upgrade() {
  post_install $1
}

post_remove() {
  rm -R /etc/pihole/
  rm /run/log/pihole.log
}