Fix admission

Author: sttts

pkg/admission/plugin/pizzatoppings/admission.go

@@ -42,10 +42,11 @@ type PizzaToppingsPlugin struct {
 }
 
 var _ = custominitializer.WantsRestaurantInformerFactory(&PizzaToppingsPlugin{})
+var _ = admission.ValidationInterface(&PizzaToppingsPlugin{})
 
 // Admit ensures that the object in-flight is of kind Pizza.
 // In addition checks that the toppings are known.
-func (d *PizzaToppingsPlugin) Validate(a admission.Attributes) error {
+func (d *PizzaToppingsPlugin) Validate(a admission.Attributes, _ admission.ObjectInterfaces) error {
 	// we are only interested in pizzas
 	if a.GetKind().GroupKind() != restaurant.Kind("Pizza") {
 		return nil