in api/metadata.go [61:81]
func getMetadataValue(ctx context.Context, c *http.Client, path string) (string, error) {
req, err := http.NewRequest("GET", "http://"+metadataServerHost+path, nil)
if err != nil {
return "", fmt.Errorf("http.NewRequest: %w", err)
}
req.Header.Add("Metadata-Flavor", "Google")
resp, err := c.Do(req.WithContext(ctx))
if err != nil {
return "", fmt.Errorf("failed to get metadata %s: %w", path, err)
}
defer resp.Body.Close()
body, err := ioutil.ReadAll(resp.Body)
if err != nil {
return "", fmt.Errorf("failed to read response body of %s: %w", path, err)
}
return string(body), nil
}