Update kind instruction for Mac

[owenthereal]

For Mac, kubectl logs accesses the Krustlet process running on the host.
The default gateway is the en0 interface IP on the host.

Discussion: https://bytecodealliance.zulipchat.com/#narrow/stream/227959-wasmtime-on.20k8s/topic/Krustlet/near/192599630
Ref 1: moby/moby#22753 (comment)
Ref 2: https://docs.docker.com/docker-for-mac/networking/#use-cases-and-workarounds

[bacongobbler]

Hey @jingweno! I grabbed my laptop and started looking into this issue further. I wrote up my findings over in #147, which looks to cover the documentation provided here with additional context.

I found the following:

• I can confirm that the en0 network is reachable from within the container
• Because a container can reach the en0 network, you should not need to provide a --node-ip, as Krustlet will start listening on the 192.168.1.* address by default
• I attached some links that should help the next user caught up in this mess.

Would it be okay if we went ahead with #147 instead? I feel that PR provides a little more information for the user to dig into this issue further and hopefully equip them with more tools to dive into the deep end with this.

Thanks again!

[owenthereal]

@bacongobbler Yes, feel free to close this one.

Because a container can reach the en0 network, you should not need to provide a --node-ip, as Krustlet will start listening on the 192.168.1.* address by default

This doesn't seem to always work for me. As discussed in https://bytecodealliance.zulipchat.com/#narrow/stream/227959-wasmtime-on.20k8s/topic/Krustlet/near/192597480, on VPN, krustlet detected the interface okay; Off VPN, I got:

./krustlet-wasi --pfx-password password
thread 'main' panicked at 'unable to get default node IP address: failed to lookup address information: nodename nor servname provided, or not known', crates/kubelet/src/config.rs:92:13
note: run with `RUST_BACKTRACE=1` environment variable to display a backtrace

[bacongobbler]

Thanks for reminding me about that particular case. I'll make sure to call that out.