func Scale(b backend.Backend, targets []string) error {
for _, target := range targets {
component, num, err := splitScaleTarget(target)
if err != nil {
return err
}
// the router is the only component that can scale past 1 at the moment
if num > 1 && !strings.Contains(component, "router") {
return fmt.Errorf("cannot scale %s past 1", component)
}
if err := b.Scale(component, num); err != nil {
return err
}
}
return nil
}
