Merge branch 'feat/OTA-2238' into 'master'

[OTA-2238] Add rotateRoot() method to ReposerverClient

Closes OTA-2238

See merge request torizon-platform/ota-tuf!333

libtuf-server/src/main/scala/com/advancedtelematic/libtuf_server/repo/client/ReposerverClient.scala

@@ -144,6 +144,8 @@ trait ReposerverClient {
   def fetchRoot(namespace: Namespace,
                 version: Option[Int]): Future[(RepoId, SignedPayload[RootRole])]
 
+  def rotateRoot(namespace: Namespace): Future[Unit]
+
   def repoExists(namespace: Namespace)(implicit ec: ExecutionContext): Future[Boolean] =
     fetchRoot(namespace, None).transform {
       case Success(_) | Failure(KeysNotReady)              => Success(true)
@@ -327,6 +329,11 @@ class ReposerverHttpClient(reposerverUri: Uri,
     }
   }
 
+  override def rotateRoot(namespace: Namespace): Future[Unit] = {
+    val req = HttpRequest(HttpMethods.PUT, uri = apiUri(Path(s"user_repo/root/rotate")))
+    execHttpUnmarshalledWithNamespace[Unit](namespace, req).ok
+  }
+
   private def addTargetErrorHandler[T]: PartialFunction[RemoteServiceError, Future[T]] = {
     case error if error.status == StatusCodes.PreconditionFailed =>
       Future.failed(PrivateKeysNotInKeyserver)