I won’t have the answers, but some questions to help clarify…

 

Q1. Are these all kata-container VMs

 

Q2. Are you using some standard container networking infra, like CNI, to link them together?

 

Afaik, kata should ‘just work’ if sat under a CNI setup.

 

Kata has a number of ways it can discover/config/integrate with the networking passed in from the higher levels – iirc, we default to using ‘tcfilter’ at the moment. Have a look in the config file for some more info.

https://github.com/kata-containers/runtime/blob/master/cli/config/configuration-qemu.toml.in#L378

 

bottom line is I think, if the higher level orchestration has set up the networking correctly as it would for say ‘runc’, then kata should pick that up and translate/re-configure it into the VM and host side so it works ‘seamlessly’.

 

Graham