Fix HTTPS configuration: use service hostname for networking and add HTTP-only compose file

- Updated service name from 'digiserver' to 'digiserver-app' in docker-compose.yml for proper Docker network DNS resolution
- Fixed Caddyfile to reference correct service hostname 'digiserver-app:5000'
- Changed port mapping from 'ports' to 'expose' for internal-only access
- Added docker-compose.http.yml for HTTP-only deployment on port 80 (development/testing)
- Both Flask app and Caddy now communicate correctly over internal Docker network
- App now accessible at https://localhost or https://your-domain.com on port 443

docker-compose.http.yml

@@ -0,0 +1,27 @@
+version: '3.8'
+
+services:
+  digiserver:
+    build: .
+    container_name: digiserver-v2-http
+    ports:
+      - "80:5000"  # Direct HTTP exposure on port 80
+    volumes:
+      - ./instance:/app/instance
+      - ./app/static/uploads:/app/app/static/uploads
+    environment:
+      - FLASK_ENV=production
+      - SECRET_KEY=${SECRET_KEY:-your-secret-key-change-this}
+      - ADMIN_USERNAME=${ADMIN_USERNAME:-admin}
+      - ADMIN_PASSWORD=${ADMIN_PASSWORD:-admin123}
+    restart: unless-stopped
+    healthcheck:
+      test: ["CMD", "python", "-c", "import urllib.request; urllib.request.urlopen('http://localhost:5000/').read()"]
+      interval: 30s
+      timeout: 10s
+      retries: 3
+      start_period: 40s
+
+# Usage: docker-compose -f docker-compose.http.yml up -d
+# Access at: http://localhost or http://your-server-ip
+# Note: This is for development/testing only. Use docker-compose.yml for production HTTPS.