Connect PTVSD with VS Code through a Kubernetes cluster

I have a Flask application getting launch with Gunicorn inside a Kubernetes pod with the following command:

exec gunicorn --log-file - --access-logfile - --access-logformat "${LOGFORMAT}" \
     --no-sendfile -w 1 -t 600 --bind 0.0.0.0:${APIPORT-1380} ${EXTRABIND} ${ARGS} \
     -n apiwrapper "apiwrapper:create_app()"

I want to attach the PTVSD debugger to my app and link it to VS Code. Here is the lines I added to my function create_app():

 if os.getenv("DEV"):
     import ptvsd     
     ptvsd.enable_attach(('0.0.0.0', 9797))     

Our architecture is following this schema:

Ingress --> Service --> Pod

On my Kubernetes services I added:

    - port: 9797
      name: ptvsd-debugger

Which gives me:

backendapi                  ClusterIP   x.x.35.83     <none>        80/TCP,1380/TCP,9797/TCP   81m
public-site-standard-web    ClusterIP   x.x.214.19    <none>        80/TCP,8080/TCP,9797/TCP   83m

And I added the following route to my two ingresses:

- path: /debugger
  backend:
   serviceName: backendapi
   servicePort: 9797

NAME                        HOSTS                        ADDRESS          PORTS     AGE
public-site-standard-web    jocteau.aws.citizennet.com   192.168.50.101   80, 443   3h42m
backendapi                  jocteau.aws.citizennet.com   192.168.50.101   80        3h40m

Here is the public-site Ingress:

Name:             public-site-standard-web
Namespace:        default
Address:          192.168.50.101
Default backend:  default-http-backend:80 (<none>)
TLS:
  dev-tls terminates myhostname.com
Rules:
  Host                        Path  Backends
  ----                        ----  --------
  myhostname.com  
                              /debugger   backendapi:9797 (x.x.x.25:9797)
                              /           public-site-standard-web:http (x.x.x.12:80)

and the backendapi Ingress:

Name:             backendapi
Namespace:        default
Address:          192.168.50.101
Default backend:  default-http-backend:80 (<none>)
Rules:
  Host                        Path  Backends
  ----                        ----  --------
  myhostname.com  
                              /debugger         backendapi:9797 (x.x.x.25:9797)
                              /backend/api/v2   backendapi:http (x.x.x.25:80)

So now I created my debugger config inside VS Code:

{
   "name": "Python: Remote Attach",
   "type": "python",
   "request": "attach",
   "port": 80,
   "host": "myhostname.com/debugger",
   "pathMappings": [
      {
         "localRoot": "${workspaceFolder}/backend/py",
         "remoteRoot": "."
      }
   ]
}

But I'm getting:

getaddrinfo ENOTFOUND myhostname.com/debugger

But when I try to access directly to the URL https://myhostname.com/debugger I can see in my pod logs that my debugger is receiving the call:

E00139.153: Traceback (most recent call last):
              File "/usr/local/lib/python3.8/site-packages/ptvsd/ipcjson.py", line 269, in process_one_message
                msg = self.__message.pop(0)
            IndexError: pop from empty list
            
            During handling of the above exception, another exception occurred:
            
            Traceback (most recent call last):
              File "/usr/local/lib/python3.8/site-packages/ptvsd/ipcjson.py", line 258, in process_messages
                self.process_one_message()
......................
ptvsd.ipcjson.InvalidHeaderError: Malformed header, expected 'name: value'

What am I doing wrong with the VSCode configuration? Or is it impossible to do what I'm trying to achieve? Thank you