How to set feature-gates of k8s in rke2

[wang-mask]

I am using Rancher:v2.8.0-rc2 to install version 1.27.6 of the k8s cluster, i want to use in-place vpa of k8s 1.27.6. But how to set the feature-gates of kube-apiserver, kube-controller and so on? I saw the "extra_args" in rke1, how to set them on rke2?

[skanakal]

#3194 (comment)

[github-actions]

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[caroline-suse-rancher]

I'm going to convert this to a discussion as this is really more of a question than a bug