How to make wss connection support?

Question

Tornado

WebSocket connection to ' wss://localhost:8000/ws ' failed:
Everything is fine as long as the project was local, after posting an error about the secure protocol. I don't understand what needs to be done to make it work?
Tried what is commented out - same error.

import os
from models.ws_handler import WsHandler
from consumer import ServerConsumer
import tornado.ioloop
import ssl

if __name__ == '__main__':
    consumer = ServerConsumer()
    consumer.start_start_consuming_thread()

    application = tornado.web.Application(handlers=[
        (r'/ws', WsHandler)
    ], default_host="0.0.0.0")

    port = int(os.environ["PORT"])
    ssl_ctx = ssl.create_default_context(ssl.Purpose.CLIENT_AUTH)
    ssl_ctx.load_cert_chain(os.path.join(os.path.abspath('.'), "private", "cert.pem"),
                            os.path.join(os.path.abspath('.'), "private", "key.pem"))
    ssl_ctx.load_verify_locations(os.path.join(os.path.abspath('.'), "private", "key.pem"))

    http_server = tornado.httpserver.HTTPServer(application, ssl_options=ssl_ctx)
    http_server.listen(port=port)
    #application.listen(port=port)

    tornado.ioloop.IOLoop.instance().start()

tornado.general;SSL Error on 13 ('xxxx', yyyy): [SSL: HTTP_REQUEST] http request (_ssl.c:1131)

The application is in a separate docker container.
I guess it makes no sense to change the port inside the container to 443 ... Moreover, it seems to be busy for the frontend (user entry point)

Answer 1

The domain name is not correct, not what is specified in the certificate.