add var d'env

main.py

@@ -21,6 +21,11 @@ app = FastAPI()
 image_size = 256
 hf_token = os.environ.get("api_read")
 VALID_API_KEYS = os.environ.get("api_key")
+INSTANCE_GROUP = os.environ.get("INSTANCE_GROUP")
+if INSTANCE_GROUP:
+    logging.info(f"INSTANCE_GROUP={INSTANCE_GROUP}")
+else:
+    logging.warning("INSTANCE_GROUP not set; all models will be loaded")
 
 
 @app.middleware("http")