Add LightRAG service configuration and credentials

- Introduced LightRAG hostname and credentials in .env.example for environment setup.
- Updated Caddyfile to include reverse proxy configuration for LightRAG service.
- Added LightRAG service definition in docker-compose.yml with necessary environment variables and volume mappings.
- Enhanced README.md to document LightRAG integration and access details.
- Updated scripts to generate LightRAG credentials and include them in the final report for user visibility.

scripts/03_generate_secrets.sh

@@ -62,6 +62,9 @@ declare -A VARS_TO_GENERATE=(
     ["RAGFLOW_MYSQL_ROOT_PASSWORD"]="password:32"
     ["RAGFLOW_MINIO_ROOT_PASSWORD"]="password:32"
     ["RAGFLOW_REDIS_PASSWORD"]="password:32"
+    # LightRAG credentials
+    ["LIGHTRAG_PASSWORD"]="password:32"
+    ["LIGHTRAG_API_KEY"]="secret:48"
 )
 
 # Initialize existing_env_vars and attempt to read .env if it exists
@@ -267,6 +270,7 @@ generated_values["COMFYUI_USERNAME"]="$USER_EMAIL" # Set ComfyUI username for Ca
 generated_values["RAGAPP_USERNAME"]="$USER_EMAIL" # Set RAGApp username for Caddy
 generated_values["PADDLEOCR_USERNAME"]="$USER_EMAIL" # Set PaddleOCR username for Caddy
 generated_values["LT_USERNAME"]="$USER_EMAIL" # Set LibreTranslate username for Caddy
+generated_values["LIGHTRAG_USERNAME"]="$USER_EMAIL" # Set LightRAG username for built-in auth
 generated_values["WAHA_DASHBOARD_USERNAME"]="$USER_EMAIL" # WAHA dashboard username default
 generated_values["WHATSAPP_SWAGGER_USERNAME"]="$USER_EMAIL" # WAHA swagger username default
 
@@ -293,6 +297,7 @@ found_vars["COMFYUI_USERNAME"]=0
 found_vars["RAGAPP_USERNAME"]=0
 found_vars["PADDLEOCR_USERNAME"]=0
 found_vars["LT_USERNAME"]=0
+found_vars["LIGHTRAG_USERNAME"]=0
 found_vars["WAHA_DASHBOARD_USERNAME"]=0
 found_vars["WHATSAPP_SWAGGER_USERNAME"]=0
 
@@ -341,7 +346,7 @@ while IFS= read -r line || [[ -n "$line" ]]; do
             # This 'else' block is for lines from template not covered by existing values or VARS_TO_GENERATE.
             # Check if it is one of the user input vars - these are handled by found_vars later if not in template.
             is_user_input_var=0 # Reset for each line
-    user_input_vars=("FLOWISE_USERNAME" "DASHBOARD_USERNAME" "LETSENCRYPT_EMAIL" "RUN_N8N_IMPORT" "PROMETHEUS_USERNAME" "SEARXNG_USERNAME" "OPENAI_API_KEY" "LANGFUSE_INIT_USER_EMAIL" "N8N_WORKER_COUNT" "WEAVIATE_USERNAME" "NEO4J_AUTH_USERNAME" "COMFYUI_USERNAME" "RAGAPP_USERNAME" "PADDLEOCR_USERNAME" "LT_USERNAME" "WAHA_DASHBOARD_USERNAME" "WHATSAPP_SWAGGER_USERNAME")
+    user_input_vars=("FLOWISE_USERNAME" "DASHBOARD_USERNAME" "LETSENCRYPT_EMAIL" "RUN_N8N_IMPORT" "PROMETHEUS_USERNAME" "SEARXNG_USERNAME" "OPENAI_API_KEY" "LANGFUSE_INIT_USER_EMAIL" "N8N_WORKER_COUNT" "WEAVIATE_USERNAME" "NEO4J_AUTH_USERNAME" "COMFYUI_USERNAME" "RAGAPP_USERNAME" "PADDLEOCR_USERNAME" "LT_USERNAME" "LIGHTRAG_USERNAME" "WAHA_DASHBOARD_USERNAME" "WHATSAPP_SWAGGER_USERNAME")
             for uivar in "${user_input_vars[@]}"; do
                 if [[ "$varName" == "$uivar" ]]; then
                     is_user_input_var=1
@@ -423,7 +428,7 @@ if [[ -z "${generated_values[SERVICE_ROLE_KEY]}" ]]; then
 fi
 
 # Add any custom variables that weren't found in the template
-for var in "FLOWISE_USERNAME" "DASHBOARD_USERNAME" "LETSENCRYPT_EMAIL" "RUN_N8N_IMPORT" "OPENAI_API_KEY" "PROMETHEUS_USERNAME" "SEARXNG_USERNAME" "LANGFUSE_INIT_USER_EMAIL" "N8N_WORKER_COUNT" "WEAVIATE_USERNAME" "NEO4J_AUTH_USERNAME" "COMFYUI_USERNAME" "RAGAPP_USERNAME" "PADDLEOCR_USERNAME" "LT_USERNAME" "WAHA_DASHBOARD_USERNAME" "WHATSAPP_SWAGGER_USERNAME"; do
+for var in "FLOWISE_USERNAME" "DASHBOARD_USERNAME" "LETSENCRYPT_EMAIL" "RUN_N8N_IMPORT" "OPENAI_API_KEY" "PROMETHEUS_USERNAME" "SEARXNG_USERNAME" "LANGFUSE_INIT_USER_EMAIL" "N8N_WORKER_COUNT" "WEAVIATE_USERNAME" "NEO4J_AUTH_USERNAME" "COMFYUI_USERNAME" "RAGAPP_USERNAME" "PADDLEOCR_USERNAME" "LT_USERNAME" "LIGHTRAG_USERNAME" "WAHA_DASHBOARD_USERNAME" "WHATSAPP_SWAGGER_USERNAME"; do
     if [[ ${found_vars["$var"]} -eq 0 && -v generated_values["$var"] ]]; then
         # Before appending, check if it's already in TMP_ENV_FILE to avoid duplicates
         if ! grep -q -E "^${var}=" "$TMP_ENV_FILE"; then

scripts/04_wizard.sh

@@ -58,6 +58,7 @@ base_services_data=(
     "gotenberg" "Gotenberg (Document Conversion API)"
     "langfuse" "Langfuse Suite (AI Observability - includes Clickhouse, Minio)"
     "letta" "Letta (Agent Server & SDK)"
+    "lightrag" "LightRAG (Graph-based RAG with knowledge graphs and incremental updates)"
     "libretranslate" "LibreTranslate (Self-hosted translation API - 50+ languages)"
     "monitoring" "Monitoring Suite (Prometheus, Grafana, cAdvisor, Node-Exporter)"
     "n8n" "n8n, n8n-worker, n8n-import (Workflow Automation)"

scripts/07_final_report.sh

@@ -292,6 +292,32 @@ if is_profile_active "letta"; then
   echo "Authorization: Bearer ${LETTA_SERVER_PASSWORD}"
 fi
 
+if is_profile_active "lightrag"; then
+  echo
+  echo "================================= LightRAG ============================="
+  echo
+  echo "Host: ${LIGHTRAG_HOSTNAME:-<hostname_not_set>}"
+  echo "Web UI: https://${LIGHTRAG_HOSTNAME:-<hostname_not_set>}"
+  echo "Internal Access (e.g., from n8n): http://lightrag:9621"
+  echo ""
+  echo "Authentication (Web UI):"
+  echo "  User: ${LIGHTRAG_USERNAME:-<not_set_in_env>}"
+  echo "  Password: ${LIGHTRAG_PASSWORD:-<not_set_in_env>}"
+  echo ""
+  echo "API Access:"
+  echo "  API Key: ${LIGHTRAG_API_KEY:-<not_set_in_env>}"
+  echo "  API Docs: https://${LIGHTRAG_HOSTNAME:-<hostname_not_set>}/docs"
+  echo "  Ollama-compatible: https://${LIGHTRAG_HOSTNAME:-<hostname_not_set>}/v1/chat/completions"
+  echo ""
+  echo "Configuration:"
+  echo "  LLM: Ollama (qwen2.5:32b) at http://ollama:11434"
+  echo "  Embeddings: Ollama (bge-m3:latest) at http://ollama:11434"
+  echo "  Storage: Flexible (JSON/PostgreSQL/Neo4j based on installed services)"
+  echo ""
+  echo "Note: Requires Ollama to be installed and running for LLM and embeddings."
+  echo "      Upload documents via /app/data/inputs volume or Web UI."
+fi
+
 if is_profile_active "cpu" || is_profile_active "gpu-nvidia" || is_profile_active "gpu-amd"; then
   echo
   echo "================================= Ollama =============================="