Add possibility to manage file permissions of config files

Fixes-bug: PROD-36559
Change-Id: I425465b2dbcb51a9d70697596ef10f8e4825dd7e
diff --git a/metadata/service/file_permissions.yml b/metadata/service/file_permissions.yml
new file mode 100644
index 0000000..ce9f183
--- /dev/null
+++ b/metadata/service/file_permissions.yml
@@ -0,0 +1,5 @@
+parameters:
+  glance:
+    directories:
+      /etc/glance:
+        mode: '0750'
\ No newline at end of file