add Dockerfiles and update all configs for deployment

spbu/Dockerfile

@@ -0,0 +1,16 @@
+FROM php:8.2-apache
+
+RUN docker-php-ext-install mysqli pdo pdo_mysql
+
+RUN a2enmod rewrite
+
+COPY . /var/www/html/
+
+RUN echo '<Directory /var/www/html>\n\
+    Options Indexes FollowSymLinks\n\
+    AllowOverride All\n\
+    Require all granted\n\
+</Directory>' > /etc/apache2/conf-available/custom.conf \
+    && a2enconf custom
+
+EXPOSE 80

spbu/config.php

@@ -2,11 +2,10 @@
 // ============================================
 // config.php — Konfigurasi Database SPBU
 // ============================================
-
-define('DB_HOST', 'localhost');
-define('DB_USER', 'root');       // Ganti jika perlu
-define('DB_PASS', '');           // Ganti jika perlu
-define('DB_NAME', 'webgis_spbu');
+define('DB_HOST', getenv('DB_HOST') ?: 'localhost');
+define('DB_USER', getenv('DB_USER') ?: 'root');
+define('DB_PASS', getenv('DB_PASS') ?: '');
+define('DB_NAME', getenv('DB_NAME') ?: 'webgis_spbu');
 
 function getConnection() {
     $conn = new mysqli(DB_HOST, DB_USER, DB_PASS, DB_NAME);