# File lib/rhc/commands/cartridge.rb, line 191
    def scale(cartridge)
      raise RHC::MissingScalingValueException unless options.min || options.max

      rest_app = rest_client.find_application(options.namespace, options.app, :include => :cartridges)
      rest_cartridge = check_cartridges(cartridge, :from => rest_app.cartridges).first

      raise RHC::CartridgeNotScalableException unless rest_cartridge.scalable?

      cart = rest_cartridge.set_scales({
        :scales_from => options.min,
        :scales_to   => options.max
      })

      results do
        paragraph{ display_cart(cart) }
        success "Success: Scaling values updated"
      end

      0
    end