How do I make my application visible on the web

And now I have the following situation,

First I do not see any errors, because the commands “sudo nginx -t” and “python3 manage.py runserver localhost: 9000” run well for me and now while running this last command I can access my application that is hosted in “django_project” without No change using the django_project skeleton and just re-editing the necessary “.py” as urls.py, views.py and add the “html” files of my application. EVERYTHING ALRIGHT HERE. If I give “Control-C”, then I can not access my application and send me the error bad 502, but I think this is the right thing, because I am accessing through the test server.

But according to the documentation I made several changes in nginx and gunicorn, which do not produce any effect, because when access by the name of my domain “www.xxxxxxxxxxx.cxx” I continue releasing the page html index.html that is hosted in var / www /xxxxxxxxxxxxxxxxx.cxx / html and is not redirected to my application.

As I mentioned, I followed all the steps of the documentation sent to me.

Please, to achieve success with this, you can give me some additional recommendation. ? To make and work