auth proxy

[bertelu]

Hi folks, forgive me for a probably stupid question but i'm a real newby in this field.
i do have a bunch of applications that currently are built to use LDAP as authentication method. i was asked to install those applications in a customer environment where they already have an IDM system based on OpenID protocol.
i'm wondering if with the flexibility that Dex seems to have is possible to use it as a proxy. in other words, my application will contact Dex thinking that is an LDAP server then Dex will forward the auth request to the customer IDM in OpenID format, returning the result to my application.

is this in somehow possible?

thanks