kubernetes/kops · error

patching node %q: %w

Error message

patching node %q: %w

What it means

BootstrapControlPlaneNodeLabels sends the strategic-merge patch to add control-plane labels to the Node object; this wraps the Nodes().Patch API call failing, e.g. because the node was modified concurrently, RBAC denied the patch, or the API server rejected the patch.

Source

Thrown at channels/pkg/nodelabeler/labeler.go:75

			shouldPatch = true
			break
		}
	}
	if !shouldPatch {
		return nil
	}

	klog.V(2).Infof("patching node %q to add labels %v", nodeName, labels)
	patch, err := json.Marshal(&nodePatch{
		Metadata: &nodePatchMetadata{Labels: labels},
	})
	if err != nil {
		return fmt.Errorf("building node patch: %w", err)
	}

	klog.V(2).Infof("sending patch for node %q: %s", node.Name, patch)
	if _, err := client.CoreV1().Nodes().Patch(ctx, node.Name, types.StrategicMergePatchType, patch, metav1.PatchOptions{FieldManager: "kops-channels"}); err != nil {
		return fmt.Errorf("patching node %q: %w", node.Name, err)
	}
	return nil
}

View on GitHub (pinned to 4c8573c808)

Solutions

1. Inspect the wrapped API error for the rejection reason
2. Check RBAC allows patching nodes with fieldManager kops-channels
3. Retry; conflicts from concurrent node updates are transient

When it happens

Trigger: Thrown at channels/pkg/nodelabeler/labeler.go:75 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/5b58268f575da589. Report an issue: GitHub.