HTTP server interfaces are visible to all users that are connected to a machine that has direct network access to the machine your server is running on.
If you need them to access the interface just provide the ip address and port where the server is running and the will be able to access it as users of the Flask app you are running. Just make sure you allow the users to access the needed resources.
I want to deploy a flask app with http.server (ngnix not installed by admin). I want any user who logs into the cluster to access it. Is it possible?
If I run an http server in my user account (linux cluster) how to enable other users to access it?