Firewall and proxy configuration for Mender kubernete server

I’ve deployed a Kubernete Mender server on a Proxmox VM, where I have a firewall (pfSense) and a proxy (NGinx), as I have more than one service running based on domain.

Questions:

  1. What ports needs to be opened in the firewall? 443 only?

  2. Besides the 80 port to access Mender UI, do I need an special configuration in the firewall or proxy to allow data upload and download between egde devices (Poky) and the Mender server?

Thanks for helping.