code: func (g *Cloud) isCurrentInstance(instanceID string) bool {
  	currentInstanceID, err := getInstanceIDViaMetadata()
  	if err != nil {
  		// Log and swallow error
  		klog.Errorf("Failed to fetch instanceID via Metadata: %v", err)
  		return false
  	}
  
  	return currentInstanceID == canonicalizeInstanceName(instanceID)
  }
docs: // isCurrentInstance uses metadata server to check if specified
  // instanceID matches current machine's instanceID