config/fcos: Add extensions param and generate treefile with packages

config/fcos/v1_5_exp/schema.go

@@ -21,6 +21,7 @@ import (
 type Config struct {
 	base.Config `yaml:",inline"`
 	BootDevice  BootDevice `yaml:"boot_device"`
+	Extentions  Extensions `yaml:"extensions"`
 }
 
 type BootDevice struct {
@@ -38,3 +39,5 @@ type BootDeviceLuks struct {
 type BootDeviceMirror struct {
 	Devices []string `yaml:"devices"`
 }
+
+type Extensions []string

config/fcos/v1_5_exp/translate.go

@@ -54,6 +54,11 @@ const (
 	bootV1SizeMiB     = 384
 )
 
+// TO-DO: Add template like the base for client side usage (service that calls rpm-ostree)
+
+// Maybe also here template for treefile for build time.
+//var (treeFileTemplate = TODO
+
 // ToIgn3_4Unvalidated translates the config to an Ignition config.  It also
 // returns the set of translations it did so paths in the resultant config
 // can be tracked back to their source in the source config.  No config
@@ -78,6 +83,9 @@ func (c Config) ToIgn3_4Unvalidated(options common.TranslateOptions) (types.Conf
 			}
 		}
 	}
+
+	c.addPackages(&ret, &ts)
+
 	return ret, ts, r
 }
 
@@ -292,3 +300,15 @@ func translateBootDeviceLuks(from BootDeviceLuks, options common.TranslateOption
 	tm.AddTranslation(path.New("yaml"), path.New("json"))
 	return
 }
+
+func (c Config) addPackages(config *types.Config, ts *translate.TranslationSet) {
+	if len(c.Extentions) == 0 {
+		fmt.Println("No Packages found: ", c.Extentions)
+		return
+	} else {
+		fmt.Println("Packages: ", c.Extentions)
+		//call template here
+		//treeFileTemplate
+	}
+
+}