feat: first POC for recipe upgrade

config/app.go

@@ -267,7 +267,14 @@ func UpdateAppComposeTag(recipe, image, tag string) error {
 			if err != nil {
 				logrus.Fatal(err)
 			}
+
 			composeImage := reference.Path(img.(reference.Named))
+			if strings.Contains(composeImage, "library") {
+				// ParseNormalizedNamed prepends 'library' to images like nginx:<tag>,
+				// postgres:<tag>, i.e. images which do not have a username in the
+				// first position of the string
+				composeImage = strings.Split(composeImage, "/")[1]
+			}
 			composeTag := img.(reference.NamedTagged).Tag()
 
 			if image == composeImage {