Comment 3 for bug 1722444

This is seen for all the services. "The option "configkey" in conf is not known to auth_token" is seen specifically only for Panko and Gnocchi.

The logging happens at https://github.com/openstack/keystonemiddleware/blob/stable/pike/keystonemiddleware/_common/config.py#L57 where all the key-values in the global variables list is looped through. Every middleware/filter in the paste pipeline can update this information.

For eg. the configkey referred to above comes from https://github.com/openstack/panko/blob/stable/pike/panko/api/app.py#L80

and for Gnocchi from here >> https://github.com/gnocchixyz/gnocchi/blob/master/gnocchi/rest/app.py#L118

So, there are always going to be some values that are not relevant from the authtoken middleware perspective and they will get logged. I am not sure where __file__ and here are coming from but those two seem to be common across all services.