LDAP Authorization

I have been informed that PSMDB only features LDAP auth based on the roles when a user is created using the $external database.

For larger organizations, individual based authentication is problematic for many reasons. It would be helpful to have authorization mapped via LDAP/AD group to MongoDB Role(s).

Ideally, I would request to see something more like how MongoDB 3.4 handles [LDAP external authentication|https://docs.mongodb.com/manual/core/security-ldap-external/.]