Custom Certificate Authorities - Documentation seems incomplete / does not work

[jenswachtel]

Hi,

I was following instructions here - https://www.talos.dev/v1.8/talos-guides/configuration/certificate-authorities/ Expected to apply the yaml via talosctl patch mc --nodes <IP>-p @my-ca.yaml but error "TrustedRootsConfig" "v1alpha1": not registered is returned.

Either something is missing in the documentation or I try apply it wrong. The format of the yaml is exactly what's documented:

apiVersion: v1alpha1
kind: TrustedRootsConfig
name: my-ca
certificates: |-
    -----BEGIN CERTIFICATE-----
    ...<cert gibberish>...
    -----END CERTIFICATE-----