Fix Bad Gateway: Replace supervisor with entrypoint.sh, fix nginx.conf

Dockerfile

@@ -1,27 +1,31 @@
 # =========================================================
 # Dockerfile - WebGIS PHP Application
-# Uses Nginx + PHP-FPM in a single Alpine-based container
+# Nginx + PHP-FPM on Alpine (managed by entrypoint shell script)
 # =========================================================
 
 FROM php:8.2-fpm-alpine
 
-# Install system dependencies and PHP extensions
-RUN apk add --no-cache \
-    nginx \
-    supervisor \
+# Install Nginx and required PHP extensions
+RUN apk add --no-cache nginx \
     && docker-php-ext-install mysqli pdo pdo_mysql \
     && docker-php-ext-enable mysqli pdo_mysql
 
+# CRITICAL: Allow ENV vars from Coolify (DB_HOST, DB_PASS, etc.)
+# to be readable via getenv() in PHP. PHP-FPM strips env vars by default.
+RUN echo "" >> /usr/local/etc/php-fpm.d/www.conf \
+    && echo "[www]" >> /usr/local/etc/php-fpm.d/www.conf \
+    && echo "clear_env = no" >> /usr/local/etc/php-fpm.d/www.conf
+
 # 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
+# Create nginx runtime directories
+RUN mkdir -p /run/nginx && \
+    mkdir -p /var/log/nginx
 
-# 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
+# Copy entrypoint script and make executable
+COPY entrypoint.sh /entrypoint.sh
+RUN chmod +x /entrypoint.sh
 
 # Set working directory
 WORKDIR /var/www/html
@@ -29,12 +33,12 @@ WORKDIR /var/www/html
 # Copy all application files
 COPY . .
 
-# Set correct permissions for web files
+# Set correct permissions
 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"]
+# Run entrypoint script
+CMD ["/entrypoint.sh"]

entrypoint.sh

@@ -0,0 +1,11 @@
+#!/bin/sh
+set -e
+
+echo "==> Starting PHP-FPM..."
+php-fpm -D
+
+echo "==> Waiting for PHP-FPM to be ready..."
+sleep 1
+
+echo "==> Starting Nginx..."
+exec nginx -g "daemon off;"

nginx.conf

@@ -1,6 +1,5 @@
 worker_processes auto;
 error_log /var/log/nginx/error.log warn;
-pid /var/run/nginx.pid;
 
 events {
     worker_connections 1024;
@@ -23,18 +22,21 @@ http {
             try_files $uri $uri/ /index.php?$query_string;
         }
 
-        # PHP-FPM handler - all .php files are processed by PHP-FPM
+        # PHP-FPM: forward all .php requests to PHP-FPM on port 9000
         location ~ \.php$ {
+            try_files $uri =404;
+            fastcgi_split_path_info ^(.+\.php)(/.+)$;
             fastcgi_pass 127.0.0.1:9000;
             fastcgi_index index.php;
             include fastcgi_params;
             fastcgi_param SCRIPT_FILENAME $document_root$fastcgi_script_name;
             fastcgi_param PATH_INFO $fastcgi_path_info;
+            fastcgi_read_timeout 300;
         }
 
-        # Allow access to static files (HTML, CSS, JS, images)
+        # Cache static files
         location ~* \.(html|css|js|jpg|jpeg|png|gif|ico|svg|woff|woff2|ttf|eot)$ {
-            expires max;
+            expires 1d;
             access_log off;
         }