kubernetes/kops · error

KubernetesPath::ReadTree not supported

Error message

KubernetesPath::ReadTree not supported

What it means

Hard guard: recursive tree walking is not implemented for k8s:// paths, so KubernetesPath.ReadTree always returns this error. There is no hierarchical namespace to walk on the API server, so any generic code that tries to enumerate a subtree under a KubernetesPath fails here deterministically.

Source

Thrown at util/pkg/vfs/k8sfs.go:121

	var b bytes.Buffer
	_, err := p.WriteTo(&b)
	if err != nil {
		return nil, err
	}
	return b.Bytes(), nil
}

// WriteTo implements io.WriterTo
func (p *KubernetesPath) WriteTo(out io.Writer) (int64, error) {
	return 0, fmt.Errorf("KubernetesPath::WriteTo not supported")
}

func (p *KubernetesPath) ReadDir() ([]Path, error) {
	return nil, fmt.Errorf("KubernetesPath::ReadDir not supported")
}

func (p *KubernetesPath) ReadTree(ctx context.Context) ([]Path, error) {
	return nil, fmt.Errorf("KubernetesPath::ReadTree not supported")
}

func (p *KubernetesPath) Base() string {
	return path.Base(p.key)
}

func (p *KubernetesPath) PreferredHash() (*hashing.Hash, error) {
	return p.Hash(hashing.HashAlgorithmMD5)
}

func (p *KubernetesPath) Hash(a hashing.HashAlgorithm) (*hashing.Hash, error) {
	return nil, fmt.Errorf("KubernetesPath::Hash not supported")
}

View on GitHub (pinned to 4c8573c808)

Solutions

1. Query the Kubernetes API directly for the objects you need
2. Branch on the path scheme before calling ReadTree so k8s:// paths take an API-based code path

When it happens

Trigger: Thrown at util/pkg/vfs/k8sfs.go:121 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/52fbdd2623adbe7e. Report an issue: GitHub.