Add metadata for GuestTempalte details

pkg/apis/compute/guesttemplate.go

@@ -72,6 +72,7 @@ type GuestTemplateListInput struct {
 }
 
 type GuestTemplateConfigInfo struct {
+	Metadata             map[string]string      `json:"metadata"`
 	Secgroup             string                 `json:"secgroup"`
 	Sku                  GuestTemplateSku       `json:"sku"`
 	Disks                []GuestTemplateDisk    `json:"disks"`

pkg/compute/models/guest_template.go

@@ -355,6 +355,9 @@ func (gt *SGuestTemplate) getMoreDetails(ctx context.Context, userCred mcclient.
 	}
 	out.Brand = Hypervisor2Brand(gt.Hypervisor)
 
+	// metadata
+	configInfo.Metadata = input.Metadata
+
 	// sku deal
 	if len(input.InstanceType) > 0 {
 		skuOutput := computeapis.GuestTemplateSku{}