feat: add layer definition api

internal/setup/default_registry.go

@@ -25,6 +25,15 @@ func GetLayerOptionsSchema(layerType store.LayerType) (*jsonschema.Schema, error
 	return schema, nil
 }
 
+func GetLayerOptionsRawSchema(layerType store.LayerType) ([]byte, error) {
+	schema, err := defaultRegistry.GetLayerOptionsRawSchema(layerType)
+	if err != nil {
+		return nil, errors.WithStack(err)
+	}
+
+	return schema, nil
+}
+
 func GetLayers(ctx context.Context, conf *config.Config) ([]director.Layer, error) {
 	layers, err := defaultRegistry.GetLayers(ctx, conf)
 	if err != nil {

internal/setup/registry.go

@@ -28,13 +28,22 @@ func (r *Registry) RegisterLayer(layerType store.LayerType, layerSetup LayerSetu
 	}
 }
 
-func (r *Registry) GetLayerOptionsSchema(layerType store.LayerType) (*schema.Schema, error) {
+func (r *Registry) GetLayerOptionsRawSchema(layerType store.LayerType) ([]byte, error) {
 	layerEntry, exists := r.layers[layerType]
 	if !exists {
 		return nil, errors.WithStack(ErrNotFound)
 	}
 
-	schema, err := schema.Parse(layerEntry.rawOptionsSchema)
+	return layerEntry.rawOptionsSchema, nil
+}
+
+func (r *Registry) GetLayerOptionsSchema(layerType store.LayerType) (*schema.Schema, error) {
+	rawSchema, err := r.GetLayerOptionsRawSchema(layerType)
+	if err != nil {
+		return nil, errors.WithStack(err)
+	}
+
+	schema, err := schema.Parse(rawSchema)
 	if err != nil {
 		return nil, errors.WithStack(err)
 	}