使用Taipy时触发RuntimeError问题求助

错误信息 #

RuntimeError: The Werkzeug web server is not designed to run in production. Pass allow_unsafe_werkzeug=True to the run() method to disable this error.

环境配置 #

docker-compose.yml #

version: "3.9"
services:
   my_test:
        build: .
        container_name: my_test
        volumes:
            - .:/app
        ports:
            - "5000:5000"

Dockerfile #

FROM python:3.9

WORKDIR /app
COPY . /app
RUN pip install -r requirements.txt

CMD [ "python", "./app.py" ]

requirements.txt #

docker
gpt-engineer
flask==2.2
marshmallow-sqlalchemy==0.26.1
taipy

app.py #

from flask import Flask
from taipy import Gui

flask_app = Flask(__name__)

@flask_app.route("/home")
def home_page():
    return "The home page."

gui = Gui(page="# Taipy application", flask=flask_app)
gui.run(allow_unsafe_werkzeug=True)

运行日志 #

ilai@ilai-dell-g15-5520:~/Code/taipy$ docker compose up
[+] Running 2/2
 ⠿ Network taipy_default  Created                                                                                                                  0.1s
 ⠿ Container my_test      Created                                                                                                                  0.1s
Attaching to my_test
my_test  |  * Server starting on http://127.0.0.1:5000
my_test  | Traceback (most recent call last):
my_test  |   File "/app/./app.py", line 11, in <module>
my_test  |     gui.run(allow_unsafe_werkzeug=True)
my_test  |   File "/usr/local/lib/python3.9/site-packages/taipy/gui/gui.py", line 1151, in run
my_test  |     return self._server.runWithWS(
my_test  |   File "/usr/local/lib/python3.9/site-packages/taipy/gui/server.py", line 253, in runWithWS
my_test  |     self._ws.run(self._flask, host=host, port=port, debug=debug, use_reloader=use_reloader)
my_test  |   File "/usr/local/lib/python3.9/site-packages/flask_socketio/__init__.py", line 641, in run
my_test  |     raise RuntimeError('The Werkzeug web server is not '
my_test  | RuntimeError: The Werkzeug web server is not designed to run in production. Pass allow_unsafe_werkzeug=True to the run() method to disable this error.

注：尝试不集成Flask运行，仍出现相同问题。

解决方案 #

错误根源是Taipy底层依赖的Flask-SocketIO未接收到allow_unsafe_werkzeug=True参数，同时Docker环境下服务器需绑定0.0.0.0才能外部访问。修改app.py中的gui.run()调用：

gui.run(allow_unsafe_werkzeug=True, host="0.0.0.0")

说明 #

1. Taipy的gui.run()会将额外的关键字参数传递给底层Flask-SocketIO的run()方法，因此allow_unsafe_werkzeug=True会被正确传递，解决生产环境报错。
2. 绑定0.0.0.0而非默认的127.0.0.1，确保Docker容器内的服务能被宿主机访问。

内容的提问来源于stack exchange，提问作者i h