kubernetes/kops · error

error writing kubeconfig: %v

Error message

error writing kubeconfig: %v

What it means

Persisting the modified kubeconfig after removing the context failed at the clientcmd layer; typically file permissions or a read-only KUBECONFIG path after the in-memory edits succeeded.

Source

Thrown at pkg/kubeconfig/kubecfg_builder.go:74

		return fmt.Errorf("error loading kubeconfig: %v", err)
	}

	if config == nil || clientcmdapi.IsConfigEmpty(config) {
		klog.V(2).Info("kubeconfig is empty")
		return nil
	}

	delete(config.Clusters, b.Context)
	delete(config.AuthInfos, b.Context)
	delete(config.AuthInfos, fmt.Sprintf("%s-basic-auth", b.Context))
	delete(config.Contexts, b.Context)

	if config.CurrentContext == b.Context {
		config.CurrentContext = ""
	}

	if err := clientcmd.ModifyConfig(configAccess, *config, false); err != nil {
		return fmt.Errorf("error writing kubeconfig: %v", err)
	}

	fmt.Printf("Deleted kubectl config for %s\n", b.Context)
	return nil
}

// Write out a new kubeconfig
func (b *KubeconfigBuilder) WriteKubecfg(configAccess clientcmd.ConfigAccess) error {
	config, err := configAccess.GetStartingConfig()
	if err != nil {
		return fmt.Errorf("error reading kubeconfig: %v", err)
	}

	if config == nil {
		config = &clientcmdapi.Config{}
	}

	{

View on GitHub (pinned to 4c8573c808)

Solutions

1. Check write permission on the kubeconfig file and its directory
2. Ensure KUBECONFIG does not point to a read-only location
3. Retry after fixing permissions

When it happens

Trigger: Thrown at pkg/kubeconfig/kubecfg_builder.go:74 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/724d1d2e81182a53. Report an issue: GitHub.