added ability to use fixed template per config

Author: YafimK

builder/upcloud/config.go

@@ -49,10 +49,11 @@ type Config struct {
 	StorageName string `mapstructure:"storage_name"`
 
 	// Optional configuration values
-	TemplatePrefix string        `mapstructure:"template_prefix"`
-	StorageSize    int           `mapstructure:"storage_size"`
-	Timeout        time.Duration `mapstructure:"state_timeout_duration"`
-	CloneZones     []string      `mapstructure:"clone_zones"`
+	TemplatePrefix      string        `mapstructure:"template_prefix"`
+	IsTemplateNameFixed bool          `mapstructure:"is_template_name_fixed"`
+	StorageSize         int           `mapstructure:"storage_size"`
+	Timeout             time.Duration `mapstructure:"state_timeout_duration"`
+	CloneZones          []string      `mapstructure:"clone_zones"`
 
 	RawNetworking []internal.NetworkInterface `mapstructure:"network_interfaces"`
 	Networking    []request.CreateServerInterface

builder/upcloud/step_create_template.go

@@ -53,10 +53,16 @@ func (s *StepCreateTemplate) Run(_ context.Context, state multistep.StateBag) mu
 	for _, uuid := range storageUuids {
 		ui.Say(fmt.Sprintf("Creating template for storage %q...", uuid))
 
-		t, err := driver.CreateTemplate(uuid, s.Config.TemplatePrefix)
+		templateTitle := s.Config.TemplatePrefix
+		if !s.Config.IsTemplateNameFixed {
+			templateTitle = fmt.Sprintf("%s-%s", templateTitle, internal.GetNowString())
+		}
+
+		t, err := driver.CreateTemplate(uuid, templateTitle)
 		if err != nil {
 			return internal.StepHaltWithError(state, err)
 		}
+		
 		templates = append(templates, t)
 		ui.Say(fmt.Sprintf("Template for storage %q created...", uuid))
 	}

internal/driver.go

@@ -113,9 +113,8 @@ func (d *driver) StopServer(serverUuid string) error {
 	return nil
 }
 
-func (d *driver) CreateTemplate(serverStorageUuid, prefix string) (*upcloud.Storage, error) {
+func (d *driver) CreateTemplate(serverStorageUuid, templateTitle string) (*upcloud.Storage, error) {
 	// create image
-	templateTitle := fmt.Sprintf("%s-%s", prefix, GetNowString())
 	response, err := d.svc.TemplatizeStorage(&request.TemplatizeStorageRequest{
 		UUID:  serverStorageUuid,
 		Title: templateTitle,