Document feature gates for kubeadm

[sftim]

This is a Feature Request

What would you like to be added
Document all the feature gates for kubeadm

Why is this needed
https://kubernetes.io/docs/reference/command-line-tools-reference/feature-gates/ should be a list of feature gates for at least all in-tree tools. I'm not sure if we count kubeadm as in-tree but it's certainly a core part of Kubernetes in terms of how we document things.

If we don't document the kubeadm feature gates in
https://kubernetes.io/docs/reference/command-line-tools-reference/feature-gates/ then instead
https://kubernetes.io/docs/reference/command-line-tools-reference/feature-gates/ should hyperlink to a page that does.

Comments
Prompted by kubernetes/enhancements#2568 (comment)
/sig cluster-lifecycle

[sftim]

/language en
/kind feature

[neolit123]

commented here:
kubernetes/enhancements#2568 (comment)

historically, kubeadm has not been much of a FG user, but once a feature moves to beta we always document it at k8s.io.

if anyone wants to contribute this it must be a new page.
(https://kubernetes.io/docs/reference/command-line-tools-reference/feature-gates/ is for core FGs)
/help

[neolit123]

/triage accepted

[sftim]

Relevant to #28036 (generate feature gate lists from data) - for context only. No need for kubeadm to participate in the automation.

[sftim]

/priority important-longterm
People might want to try out alpha features; we should make it clear how they can, and follow docs conventions to explain that these are alpha.

(same for beta, if that applies)

[k8s-triage-robot]

The Kubernetes project currently lacks enough contributors to adequately respond to all issues and PRs.

This bot triages issues and PRs according to the following rules:

• After 90d of inactivity, lifecycle/stale is applied
• After 30d of inactivity since lifecycle/stale was applied, lifecycle/rotten is applied
• After 30d of inactivity since lifecycle/rotten was applied, the issue is closed

You can:

• Mark this issue or PR as fresh with /remove-lifecycle stale
• Mark this issue or PR as rotten with /lifecycle rotten
• Close this issue or PR with /close
• Offer to help out with Issue Triage

Please send feedback to sig-contributor-experience at kubernetes/community.

/lifecycle stale

[sftim]

/lifecycle frozen

[neolit123]

/remove-help
/assign

[neolit123]

#31687
merged.

/close

[k8s-ci-robot]

@neolit123: Closing this issue.

In response to this:

#31687
merged.

/close

Instructions for interacting with me using PR comments are available here. If you have questions or suggestions related to my behavior, please file an issue against the kubernetes/test-infra repository.