Enhancement Request - label nodes in provider with network name

[TrooperT]

What would you like to be added:
I would like for it to be considered for the built-in providers (docker, podman, nerdctl) to provision the nodes with an additional label, perhaps in the format io.x-k8s.kind.network=<networkName>

Why is this needed:

Acknowledging that env variable KIND_EXPERIMENTAL_DOCKER_NETWORK is taken into account during cluster creation for setting the provider network each node is connected to, AND that it is an experimental flag at that, adding this label lays the foundation for a further enhancement to cloud-provider-kind allowing the spawned loadbalancer nodes to be properly connected to the same network as the cluster they are serving.

I have a branch ready for PR if things are amenable: TrooperT/kind

[BenTheElder]

Not only do we only officially support one network name, the container labels are not documented because they're an internal mechanism.

You can discover this information from docker inspect

[TrooperT]

Darn. Thought I had a good one.

@BenTheElder thank you for the insight and helping me to course correct the project I'm working on.