Add possibility to manage file permissions of config files

Fixes-bug: PROD-36557
Change-Id: Ic00d413ff2523de8cda5bc61b24287faf4b27b98
diff --git a/metadata/service/api/cluster.yml b/metadata/service/api/cluster.yml
index f907f09..c5d12a0 100644
--- a/metadata/service/api/cluster.yml
+++ b/metadata/service/api/cluster.yml
@@ -2,6 +2,7 @@
 - octavia
 classes:
 - service.octavia.support
+- service.octavia.file_permissions
 parameters:
   _param:
     keystone_octavia_endpoint_type: internal