* the only non repository module using @PreAuthorize
* the only service for "sys admins" - it's a little bit out of scopes
* caches management is not supposed to be via REST
* delete tenant shall not be provided when we don't have create
* metrics shall be reported via metrics colectins services, or db
Signed-off-by: Avgustin Marinov <Avgustin.Marinov@bosch.com>