comando per immagine docker

[ynuyasha]

Ciao,
ho buildato l'immagine docker con il dockerfile presente, ma sembra non esserci un cmd corretto, in quanto parte con python e basta.
Ho provato a fare override facendo partire il container con
waitress-serve --port=8081 server:application
trovato dentro Procfile
ma poi quando arriva la post da alexa c'è un errore di python:

[2023-02-23 18:00:44,493] ERROR in app: Exception on /plex [POST]
Traceback (most recent call last):
  File "/usr/local/lib/python3.5/site-packages/flask/app.py", line 1988, in wsgi_app
    response = self.full_dispatch_request()
  File "/usr/local/lib/python3.5/site-packages/flask/app.py", line 1641, in full_dispatch_request
    rv = self.handle_user_exception(e)
  File "/usr/local/lib/python3.5/site-packages/flask/app.py", line 1544, in handle_user_exception
    reraise(exc_type, exc_value, tb)
  File "/usr/local/lib/python3.5/site-packages/flask/_compat.py", line 33, in reraise
    raise value
  File "/usr/local/lib/python3.5/site-packages/flask/app.py", line 1639, in full_dispatch_request
    rv = self.dispatch_request()
  File "/usr/local/lib/python3.5/site-packages/flask/app.py", line 1625, in dispatch_request
    return self.view_functions[rule.endpoint](**req.view_args)
  File "/usr/local/lib/python3.5/site-packages/flask_ask/core.py", line 499, in _flask_view_func
    self._update_stream()
  File "/usr/local/lib/python3.5/site-packages/flask_ask/core.py", line 468, in _update_stream
    fresh_stream.__dict__.update(self._from_context())
TypeError: 'NoneType' object is not iterable

Quindi non sono sicuro che sia il cmd giusto.
Potresti aiutarmi?

Grazie