Network requirements of Free5gc

[jgomezve]

Hello

Why is it required to have static IP addresses for the SMF and AMF?
If is is about avoid IP change due to CNF crashes, wouldn't K8s services be a better option?
If it is about CNF discovery, wouldn't DNS and K8s Service discovery help here?

Also, why is it mandatory to have multiple interfaces? Cannot, for example, UPF and the CP-CNFs talk to the SMF using the same IP address?

I am highlighting these points, because Open5Gs, another 5GC doesn't seem to have these requirements