APIServer: Use options pattern in standalone mode (#82760)

use options

pkg/cmd/grafana/apiserver/cmd.go

@@ -62,7 +62,7 @@ func newCommandStartExampleAPIServer(o *APIServerOptions, stopCh <-chan struct{}
 	}
 
 	cmd.Flags().StringVar(&runtimeConfig, "runtime-config", "", "A set of key=value pairs that enable or disable built-in APIs.")
-	o.factory.InitFlags(cmd.Flags())
+	o.factory.GetOptions().AddFlags(cmd.Flags())
 
 	// Register standard k8s flags with the command line
 	o.RecommendedOptions = options.NewRecommendedOptions(

pkg/cmd/grafana/apiserver/server.go

@@ -110,6 +110,7 @@ func (o *APIServerOptions) ModifiedApplyTo(config *genericapiserver.RecommendedC
 	if err != nil {
 		return err
 	}
+
 	return nil
 }
 
@@ -160,6 +161,7 @@ func (o *APIServerOptions) Config() (*genericapiserver.RecommendedConfig, error)
 func (o *APIServerOptions) Validate(args []string) error {
 	errors := []error{}
 	errors = append(errors, o.RecommendedOptions.Validate()...)
+	errors = append(errors, o.factory.GetOptions().ValidateOptions()...)
 	return utilerrors.NewAggregate(errors)
 }