update app.py

app.py

@@ -333,7 +333,7 @@ def http_bot(
         controller_url + "/get_worker_address", json={"model": model_name}
     )
     worker_addr = ret.json()["address"]
-    if worker_addr.startswith("http://0.0.0.0"):
+    if worker_addr.startswith("http://0.0.0.0") and args.worker_ip:
         worker_addr = worker_addr.replace("0.0.0.0", args.worker_ip)
     logger.info(f"model_name: {model_name}, worker_addr: {worker_addr}")