Prioritize OS environment variables over .env file to improve Docker compatibility for the server

lightrag/api/auth.py

@@ -3,7 +3,9 @@ from datetime import datetime, timedelta
 import jwt
 from fastapi import HTTPException, status
 from pydantic import BaseModel
+from dotenv import load_dotenv
 
+load_dotenv()
 
 class TokenPayload(BaseModel):
     sub: str  # Username

lightrag/api/lightrag_server.py

@@ -49,7 +49,7 @@ from .auth import auth_handler
 # Load environment variables
 # Updated to use the .env that is inside the current folder
 # This update allows the user to put a different.env file for each lightrag folder
-load_dotenv(".env", override=True)
+load_dotenv()
 
 # Initialize config parser
 config = configparser.ConfigParser()

lightrag/api/run_with_gunicorn.py

@@ -13,7 +13,7 @@ from dotenv import load_dotenv
 
 # Updated to use the .env that is inside the current folder
 # This update allows the user to put a different.env file for each lightrag folder
-load_dotenv(".env")
+load_dotenv()
 
 
 def check_and_install_dependencies():

lightrag/api/utils_api.py

@@ -16,7 +16,7 @@ from starlette.status import HTTP_403_FORBIDDEN
 from .auth import auth_handler
 
 # Load environment variables
-load_dotenv(override=True)
+load_dotenv()
 
 global_args = {"main_args": None}