Comment by danudey

If you use Kubernetes and Calico you can use Wireguard to transparently encrypt in-cluster traffic[1] (or across clusters if you have cluster mesh configured). I wonder if we'll see more "automatic SDN over Wireguard" stuff like this as time goes on and the technology gets more proven.

Problem is IIRC if you need FIPS compliance you can't use Wireguard, since it doesn't support the mandated FIPS ciphers or what-have-you.

[1]https://docs.tigera.io/calico/latest/network-policy/encrypt-...