Looking for some advice / recommendations / considerations on running OPNsense on bare metal vs virtualized, and if virtualized how best to do so.
I currently have OPNsense running bare metal on a Protectli FW6E Vault, with the following specs:
- Intel i7-8550U CPU @ 1.80GHz
 - 120GB mSATA (1% utilization)
 - 16GB RAM (6.5% utilization)
 - 6 Gigabit Ethernet NIC ports
 
The Vault running OPNsense is the primary firewall and router, any wireless devices connect through a dumb AP running OpenWRT. Connected over Ethernet I have a RPi running HomeAssistant OS (would probably also move to virtual if that’s the chosen direction) as well as a TrueNAS setup.
How much of a performance hit would be expected running in some sort of container vs the current bare metal setup? Are there any other concerns with running the main firewall / router virtually vs bare metal to take into account?


Some years ago i posted something simillar to your post, in conclusion it is safe to run on a vm and have the ethernet ports pointed to it, i personally use bare metal since im still not too familiar with opnsense to start thinking of migrating to a vm