I got nothing in my browser when I create an image from my dash app

Dash Python
1

Hello!
My simple code is:

import dash
from dash import Dash,html
app=dash.Dash(__name__)
app.layout =html.Div('Hello from docker')
if __name__ == '__main__':
    app.run_server(host='127.0.0.1',port=8085,debug=False,)

My Dockerfile code is:

FROM python:3.11
WORKDIR /app
COPY requirements.txt .
RUN pip3 install --no-cache-dir -r requirements.txt --default-timeout=100 future
COPY  . .
EXPOSE 8085
CMD ["python" ,"-m","Dashboard_App.z"]

When I run my code in pycharm or Command prompt it works proparely but when I run docker app image I get this error:

Screenshot (30)
Screenshot (30)762×489 8.43 KB

What’s the problem?
Please tell me the solution either
Thank you