Add Nginx configuration for RAGFlow service in docker-compose.yml

- Introduced a new Nginx configuration file to handle static file serving and API request routing.
- Updated docker-compose.yml to mount the Nginx configuration for the RAGFlow service, ensuring proper reverse proxy setup and static asset management.

docker-compose.yml

@@ -837,6 +837,7 @@ services:
       - MINIO_BUCKET=ragflow
     volumes:
       - ragflow_data:/ragflow
+      - ./ragflow/nginx.conf:/etc/nginx/sites-available/default:ro
     depends_on:
       infinity:
         condition: service_started

ragflow/nginx.conf

@@ -0,0 +1,69 @@
+server {
+    listen 80;
+    server_name _;
+
+    # Increase max body size for file uploads
+    client_max_body_size 100M;
+
+    # Serve static files from the web frontend
+    location / {
+        root /ragflow/web/dist;
+        try_files $uri $uri/ /index.html;
+        index index.html;
+    }
+
+    # Proxy API requests to Flask backend
+    location /v1/ {
+        proxy_pass http://127.0.0.1:9380;
+        proxy_set_header Host $host;
+        proxy_set_header X-Real-IP $remote_addr;
+        proxy_set_header X-Forwarded-For $proxy_add_x_forwarded_for;
+        proxy_set_header X-Forwarded-Proto $scheme;
+        proxy_http_version 1.1;
+        proxy_set_header Upgrade $http_upgrade;
+        proxy_set_header Connection "upgrade";
+        proxy_read_timeout 300s;
+        proxy_connect_timeout 75s;
+    }
+
+    # Proxy admin API requests to admin Flask backend
+    location /v1/admin/ {
+        proxy_pass http://127.0.0.1:9381;
+        proxy_set_header Host $host;
+        proxy_set_header X-Real-IP $remote_addr;
+        proxy_set_header X-Forwarded-For $proxy_add_x_forwarded_for;
+        proxy_set_header X-Forwarded-Proto $scheme;
+        proxy_http_version 1.1;
+        proxy_set_header Upgrade $http_upgrade;
+        proxy_set_header Connection "upgrade";
+        proxy_read_timeout 300s;
+        proxy_connect_timeout 75s;
+    }
+
+    # Additional API endpoints
+    location ~ ^/(api|auth|files)/ {
+        proxy_pass http://127.0.0.1:9380;
+        proxy_set_header Host $host;
+        proxy_set_header X-Real-IP $remote_addr;
+        proxy_set_header X-Forwarded-For $proxy_add_x_forwarded_for;
+        proxy_set_header X-Forwarded-Proto $scheme;
+        proxy_http_version 1.1;
+        proxy_read_timeout 300s;
+        proxy_connect_timeout 75s;
+    }
+
+    # Static assets with caching
+    location ~* \.(js|css|png|jpg|jpeg|gif|ico|svg|woff|woff2|ttf|eot)$ {
+        root /ragflow/web/dist;
+        expires 1y;
+        add_header Cache-Control "public, immutable";
+    }
+
+    # Health check endpoint
+    location /health {
+        access_log off;
+        return 200 "healthy\n";
+        add_header Content-Type text/plain;
+    }
+}
+