Add RAGFlow service configuration and documentation

- Updated .env.example to include RAGFlow hostname and internal credentials for MySQL and MinIO.
- Modified Caddyfile to set up a reverse proxy for RAGFlow service.
- Enhanced docker-compose.yml with RAGFlow service definition, including environment variables and health checks for dependencies.
- Updated README.md to include RAGFlow information and service URL for user guidance.
- Configured system preparation script to set vm.max_map_count for Elasticsearch support required by RAGFlow.
- Added secret generation for RAGFlow internal credentials in the secrets generation script.
- Included RAGFlow in the final report script for visibility on service status and access information.

scripts/01_system_preparation.sh

@@ -46,4 +46,15 @@ apt install -y unattended-upgrades
 # Automatic confirmation for dpkg-reconfigure
 echo "y" | dpkg-reconfigure --priority=low unattended-upgrades
 
+# Set vm.max_map_count for Elasticsearch (required for RAGFlow if using ES backend)
+log_info "Configuring vm.max_map_count for Elasticsearch support..."
+if [ -f /etc/sysctl.conf ]; then
+    if ! grep -q "^vm.max_map_count" /etc/sysctl.conf; then
+        echo "vm.max_map_count=262144" >> /etc/sysctl.conf
+        log_info "Added vm.max_map_count=262144 to /etc/sysctl.conf"
+    fi
+fi
+# Apply immediately
+sysctl -w vm.max_map_count=262144 > /dev/null 2>&1 || true
+
 exit 0 

scripts/03_generate_secrets.sh

@@ -58,6 +58,9 @@ declare -A VARS_TO_GENERATE=(
     # WAHA (WhatsApp HTTP API)
     ["WAHA_DASHBOARD_PASSWORD"]="password:32"
     ["WHATSAPP_SWAGGER_PASSWORD"]="password:32"
+    # RAGFlow internal credentials
+    ["RAGFLOW_MYSQL_ROOT_PASSWORD"]="password:32"
+    ["RAGFLOW_MINIO_ROOT_PASSWORD"]="password:32"
 )
 
 # Initialize existing_env_vars and attempt to read .env if it exists

scripts/04_wizard.sh

@@ -71,6 +71,7 @@ base_services_data=(
     "python-runner" "Python Runner (Run your custom Python code from ./python-runner)"
     "qdrant" "Qdrant (Vector Database)"
     "ragapp" "RAGApp (Open-source RAG UI + API)"
+    "ragflow" "RAGFlow (Deep document understanding RAG engine)"
     "searxng" "SearXNG (Private Metasearch Engine)"
     "supabase" "Supabase (Backend as a Service)"
     "waha" "WAHA – WhatsApp HTTP API (NOWEB engine)"

scripts/07_final_report.sh

@@ -172,6 +172,16 @@ if is_profile_active "ragapp"; then
   echo "API Docs: https://${RAGAPP_HOSTNAME:-<hostname_not_set>}/docs"
 fi
 
+if is_profile_active "ragflow"; then
+  echo
+  echo "================================= RAGFlow ============================="
+  echo
+  echo "Host: ${RAGFLOW_HOSTNAME:-<hostname_not_set>}"
+  echo "API (external via Caddy): https://${RAGFLOW_HOSTNAME:-<hostname_not_set>}"
+  echo "API (internal): http://ragflow:80"
+  echo "Note: Uses built-in authentication (login/registration available in web UI)"
+fi
+
 if is_profile_active "comfyui"; then
   echo
   echo "================================= ComfyUI ============================="