[RFE] Enable CONFIG_NETKIT

[timbuchwaldt]

Current situation

The Netkit Kernel feature is not activated.

Impact

One can't use Cilium in Netkit mode

Ideal future situation

Netkit is enabled so lower latency and more efficient networking is possible

Implementation options

Enable the feature during Kernel build

Additional information

https://isovalent.com/blog/post/cilium-netkit-a-new-container-networking-paradigm-for-the-ai-era/

[chewi]

It's a BPF thing. We should probably turn it on. 😄

[tormath1]

It's a BPF thing. We should probably turn it on. 😄

As usual, we just need to check if does not increase a lot the Kernel size but I think it should be OK. @timbuchwaldt would you be interested to add this support? It's just a matter of enabling CONFIG_NETKIT in Flatcar Kernel config, this is similar to this: https://github.com/flatcar/scripts/pull/3461

[timbuchwaldt]

Yep, on it!