return nil, err
			}
			continue
		}

		// If the group is neither a kubeadm core type or of a supported component config group, we dump a warning about it being ignored
		if !componentconfigs.Scheme.IsGroupRegistered(gvk.Group) {
			klog.Warningf("[config] WARNING: Ignored YAML document with GroupVersionKind %v\n", gvk)
		}
	}

				return nil, err
			}
			continue
		}

		// If the group is neither a kubeadm core type or of a supported component config group, we dump a warning about it being ignored
		if !componentconfigs.Scheme.IsGroupRegistered(gvk.Group) {
			klog.Warningf("[config] WARNING: Ignored YAML document with GroupVersionKind %v\n", gvk)
		}
	}

	// Enforce that InitConfiguration and/or ClusterConfiguration has to exist among the YAML documents