kubelet: expose kubelet static labels

[jahkeup]

What I'd like:

The kubelet can be configured with static labels, this enables kubernetes pods to target hosts via selectors. I'd like to be able to specify these using userdata and apiclient calls to empower schedulers to set their affinities based on this.

https://v1-14.docs.kubernetes.io/docs/reference/command-line-tools-reference/kubelet/#options

See:

--node-labels

Any alternatives you've considered:

null

[bcressey]

I'd like for this to show up as a list in the userdata TOML.

[jahkeup]

That'd be a nice flexible data type IMO.

[bcressey]

Looks like we want to support lists for both "node-labels" and "node-taints", based on the comment in bootstrap.sh.