#!/bin/sh
set -e

PORT=${PORT:-9876}
if ! [ "$PORT" -ge 1 ] 2>/dev/null || ! [ "$PORT" -le 65535 ] 2>/dev/null; then
  echo "Warning: Invalid PORT '$PORT', using default 9876"
  PORT=9876
fi

envsubst '${PORT}' < /usr/local/apache2/conf/httpd.conf.template > /usr/local/apache2/conf/httpd.conf

exec httpd -D FOREGROUND