kubernetes/kops · error

error reading droplet metadata: %w

Error message

error reading droplet metadata: %w

What it means

getMetadata wraps io.ReadAll failure on the metadata service response body after a 200 status. The HTTP request succeeded but the body could not be read (connection reset mid-response), so the droplet ID cannot be extracted for authentication.

Source

Thrown at upup/pkg/fi/cloudup/do/dometadata/authenticator.go:71

// GetDropletID returns the droplet ID from the metadata service.
func GetDropletID() (string, error) {
	return getMetadata(dropletIDMetadataURL)
}

func getMetadata(url string) (string, error) {
	resp, err := http.Get(url)
	if err != nil {
		return "", fmt.Errorf("error querying droplet metadata: %w", err)
	}
	defer resp.Body.Close()

	if resp.StatusCode != http.StatusOK {
		return "", fmt.Errorf("droplet metadata returned non-200 status code: %d", resp.StatusCode)
	}

	bodyBytes, err := io.ReadAll(resp.Body)
	if err != nil {
		return "", fmt.Errorf("error reading droplet metadata: %w", err)
	}

	return string(bodyBytes), nil
}

View on GitHub (pinned to 4c8573c808)

Solutions

1. Retry the metadata request
2. Check for flaky node networking
3. Inspect the wrapped I/O error for the cause

When it happens

Trigger: Thrown at upup/pkg/fi/cloudup/do/dometadata/authenticator.go:71 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/7c3d3ca9f877aec7. Report an issue: GitHub.