Hey everyone, I'm integrating a couple of apps to run in a k3s single-node setup, my issue is that they have a strict no NAT requirement, is there a "standard" way to set a k3s node to exclusively not do any NATing?

Easiest way, assuming they all use distinct ports, would be to just run the pods with host network?

Yeah, I've looked into that and so far it's doable, but I'm worried as we integrate more applications we run into port hell.

Your other options are probably going to involve multus secondary interfaces, or other CNIs that use direct routing for pod IPs. Anything that uses a network overlay is going to NAT traffic in and out.

Thank you, thats what my research led me to as well, glad I wasn't reading myself into the wrong end of the abyss.