SESSION_ENGINE parameter introduced, pillar for SESSION_TIMEOUT changed. Actualized pillar for horizon.server.cluster service
diff --git a/metadata/service/server/single.yml b/metadata/service/server/single.yml
index 16e78c0..9eb974a 100644
--- a/metadata/service/server/single.yml
+++ b/metadata/service/server/single.yml
@@ -14,7 +14,9 @@
       enabled: true
       version: ${_param:horizon_version}
       secret_key: ${_param:horizon_secret_key}
-      session_timeout: 43200
+      session:
+        timeout: 43200
+        engine: 'signed_cookies'
       bind:
         address: ${_param:single_address}
         port: 80