Dockerize: Add Dockerfile, nginx.conf, supervisord.conf with clear_env=no fix

Dockerfile

@@ -0,0 +1,40 @@
+# =========================================================
+# Dockerfile - WebGIS PHP Application
+# Uses Nginx + PHP-FPM in a single Alpine-based container
+# =========================================================
+
+FROM php:8.2-fpm-alpine
+
+# Install system dependencies and PHP extensions
+RUN apk add --no-cache \
+    nginx \
+    supervisor \
+    && docker-php-ext-install mysqli pdo pdo_mysql \
+    && docker-php-ext-enable mysqli pdo_mysql
+
+# Copy Nginx configuration
+COPY nginx.conf /etc/nginx/nginx.conf
+
+# Copy supervisor configuration (runs Nginx + PHP-FPM together)
+COPY supervisord.conf /etc/supervisor/conf.d/supervisord.conf
+
+# CRITICAL: Allow ENV vars (DB_HOST, DB_PASS etc) from Coolify to be
+# readable by PHP's getenv(). By default PHP-FPM clears all env vars.
+RUN echo "[www]" >> /usr/local/etc/php-fpm.d/www.conf && \
+    echo "clear_env = no" >> /usr/local/etc/php-fpm.d/www.conf
+
+# Set working directory
+WORKDIR /var/www/html
+
+# Copy all application files
+COPY . .
+
+# Set correct permissions for web files
+RUN chown -R www-data:www-data /var/www/html \
+    && chmod -R 755 /var/www/html
+
+# Expose port 80
+EXPOSE 80
+
+# Start supervisor (which manages both Nginx and PHP-FPM)
+CMD ["/usr/bin/supervisord", "-c", "/etc/supervisor/conf.d/supervisord.conf"]