How to forward a port in a virtual box with docker inside?

Question

virtual box

Good afternoon, there is a nodejs application that I managed to deploy using docker to a docker virtual machine (I use windows 10).
How to forward some port to the virtual machine so that when this port is requested from the browser, the request comes to the virtual machine?

Answer 1

As a rule, when starting a container, there are flags -p 9999:7001, which forwards 7001 containers to 9999 virtual machines.

Answer 2

In the virtual machine settings Network - Adapter N - Port Forwarding