kubernetes/kops · error

building kube client: %w

Error message

building kube client: %w

What it means

In RunGetAddons, constructing the typed kubernetes clientset from the REST config and HTTP client failed. Both inputs were already validated; this wraps a client-go construction error, most commonly an unsupported authentication configuration.

Source

Thrown at channels/pkg/cmd/get_addons.go:86

type addonInfo struct {
	Name      string
	Version   *channels.ChannelVersion
	Namespace *v1.Namespace
}

func RunGetAddons(ctx context.Context, f *ChannelsFactory, out io.Writer, options *GetAddonsOptions) error {
	restConfig, err := f.RESTConfig()
	if err != nil {
		return err
	}
	httpClient, err := f.HTTPClient()
	if err != nil {
		return err
	}

	k8sClient, err := kubernetes.NewForConfigAndClient(restConfig, httpClient)
	if err != nil {
		return fmt.Errorf("building kube client: %w", err)
	}

	namespaces, err := k8sClient.CoreV1().Namespaces().List(ctx, metav1.ListOptions{})
	if err != nil {
		return fmt.Errorf("error listing namespaces: %v", err)
	}

	var info []*addonInfo

	for i := range namespaces.Items {
		ns := &namespaces.Items[i]
		addons := channels.FindChannelVersions(ns)
		for name, version := range addons {
			i := &addonInfo{
				Name:      name,
				Version:   version,
				Namespace: ns,
			}

View on GitHub (pinned to 4c8573c808)

Solutions

1. Inspect the wrapped client-go error for the unsupported config field
2. Fix the kubeconfig auth setup (e.g. valid exec credential plugin or token)
3. Confirm the API server URL in the kubeconfig is correct

When it happens

Trigger: Thrown at channels/pkg/cmd/get_addons.go:86 when the library encounters an invalid state.

Common situations: See trigger scenarios.

AI-assisted analysis of kubernetes/kops@4c8573c808 (2026-09-05). Data as JSON: /api/errors/fd0ed10bf0150005. Report an issue: GitHub.