portainer/portainer · error

unable to get storage class %s. Error: %w

Error message

unable to get storage class %s. Error: %w

What it means

Error "unable to get storage class %s. Error: %w" thrown in portainer/portainer.

Source

Thrown at api/kubernetes/cli/persistent_volume_claims.go:119

			return fmt.Errorf("unable to delete persistent volume claim %s/%s. Error: %w", req.Namespace, req.Name, err)
		}
	}

	return nil
}

// ResizePersistentVolumeClaim resizes a PVC to the given new size.
// The storage class must have AllowVolumeExpansion set to true.
func (kcl *KubeClient) ResizePersistentVolumeClaim(namespace, name, newSize string) error {
	pvc, err := kcl.cli.CoreV1().PersistentVolumeClaims(namespace).Get(context.Background(), name, metav1.GetOptions{})
	if err != nil {
		return fmt.Errorf("unable to get persistent volume claim %s/%s. Error: %w", namespace, name, err)
	}

	if pvc.Spec.StorageClassName != nil {
		sc, err := kcl.GetStorageClass(*pvc.Spec.StorageClassName)
		if err != nil {
			return fmt.Errorf("unable to get storage class %s. Error: %w", *pvc.Spec.StorageClassName, err)
		}

		if sc.AllowVolumeExpansion == nil || !*sc.AllowVolumeExpansion {
			return errors.New("storage class " + sc.Name + " does not allow volume expansion")
		}
	}

	_, err = resource.ParseQuantity(newSize)
	if err != nil {
		return fmt.Errorf("invalid size format %q. Error: %w", newSize, err)
	}

	patch := fmt.Sprintf(`{"spec":{"resources":{"requests":{"storage":"%s"}}}}`, newSize)

	_, err = kcl.cli.CoreV1().PersistentVolumeClaims(namespace).Patch(
		context.Background(),
		name,
		types.MergePatchType,

View on GitHub (pinned to 17e74456ff)

When it happens

Trigger: Thrown at api/kubernetes/cli/persistent_volume_claims.go:119 when the library encounters an invalid state.

Common situations: See trigger scenarios.

AI-assisted analysis of portainer/portainer@17e74456ff (2026-08-26). Data as JSON: /api/errors/4a95aa1e0835aec8. Report an issue: GitHub.