Using VPN as network for accessing others services

[eephyne]

I know you can use the docker network to share VPN connection with other containers, but my question is to access the services in those containers using port forwarding (using VPN public IP).

The reason I want to do that is because I have a cgnat ip so I can't forward port on my ipv4 and unfortunately I can't use ipv6 right now (but I know it's working with ipv6 even if that's not the subject here).

If I use a VPN that support port forwarding and I share the network among others containers, could I use it port forwarding right now (and if I can, could you indicate me the settings for port forwarding) or is it impossible right now?

Thanks for your time and sorry if this is too specific to be discussed here.