kubernetes/kops · error

applying %q: %w

Error message

applying %q: %w

What it means

applyMenu applies a successfully built addon menu. Any failure inside it (fetching installed channel versions, computing updates, or EnsureUpdated) is wrapped as 'applying %q: %w' keyed by the channel location and accumulated into multierr. This is the top-level wrapper for the apply phase.

Source

Thrown at channels/pkg/cmd/apply_channel.go:213

		return fmt.Errorf("cannot parse kubernetes version %q", kubernetesVersionInfo.GitVersion)
	}

	// Remove Pre and Patch, as they make semver comparisons impractical
	kubernetesVersion.Pre = nil

	if len(args) == 0 {
		return fmt.Errorf("at least one channel URL is required")
	}

	var merr error
	for _, channelLocation := range args {
		menu, err := buildMenu(f.VFSContext(), kubernetesVersion, channelLocation)
		if err != nil {
			merr = multierr.Append(merr, fmt.Errorf("building menu for %q: %w", channelLocation, err))
			continue
		}
		if err := applyMenu(ctx, menu, f.VFSContext(), k8sClient, cmClient, dynamicClient, restMapper, options.Yes); err != nil {
			merr = multierr.Append(merr, fmt.Errorf("applying %q: %w", channelLocation, err))
		}
	}
	return merr
}

func applyMenu(ctx context.Context, menu *channels.AddonMenu, vfsContext *vfs.VFSContext, k8sClient kubernetes.Interface, cmClient certmanager.Interface, dynamicClient dynamic.Interface, restMapper *restmapper.DeferredDiscoveryRESTMapper, apply bool) error {
	// channelVersions is the list of installed addons in the cluster.
	// It is keyed by <namespace>:<addon name>.
	channelVersions, err := getChannelVersions(ctx, k8sClient)
	if err != nil {
		return fmt.Errorf("cannot fetch channel versions from namespaces: %w", err)
	}

	updates, needUpdates, err := getUpdates(ctx, menu, k8sClient, cmClient, channelVersions)
	if err != nil {
		return fmt.Errorf("failed to get updates: %w", err)
	}

View on GitHub (pinned to 4c8573c808)

Solutions

1. Inspect the wrapped cause for the real failure (connectivity, auth, RBAC, schema)
2. Verify cluster access with kubectl before applying
3. Fix the specific failing addon or permission, then re-run apply (idempotent)
4. Ensure kubeconfig is exported for the target cluster (kops export kubecfg)

if err := k8sClient.CoreV1().Namespaces().List(ctx, metav1.ListOptions{}); err != nil {
	return fmt.Errorf("cluster unreachable, aborting apply: %w", err)
}

if err := RunApplyChannel(ctx, f, out, locations, options); err != nil {
	if merr, ok := err.(multierr.Error); ok {
		for _, e := range merr.Errors() {
			log.Printf("apply failed: %v", e) // inspect wrapped cause per location
		}
	}
}

When it happens

Trigger: `kops apply channel <abs-url>` where Namespaces().List fails, getUpdates fails, or an addon's EnsureUpdated errors against the cluster API.

Common situations: Cluster unreachable, stale kubeconfig, RBAC denying namespace list or addon updates, one broken addon failing partway through a multi-addon apply.

Related errors

• building menu for %q: %w
• updating %q: %w
• failed to get updates: %w
• cannot specify additional objects when multiple clusters are
• must specify a cluster when creating additional objects

AI-assisted analysis of kubernetes/kops@4c8573c808 (2026-09-05). Data as JSON: /api/errors/c5a8e205618c4182. Report an issue: GitHub.