Ldap "simple bind" authentication with devise_ldap_authenticatable

Question

I have to configure devise_ldap_authenticatable for "simple bind" mechanism, using a username not in the DN form.

For example, with username=foo.bar,dc=example,dc=com we use this ldap.yml snippet:

  host: ldap.example.com
  port: 389
  attribute: username        # it takes the actual value (i.e. foo.bar) from Rails user model
  base: dc=exammple,dc=com
  ssl: false

This is like to query the server with ldapwhoami -D username=foo.bar,dc=example,dc=com -w foo_bar_password, but I want the ldap.yml equivalent to ldapwhoami -D [email protected] -w foo_bar_password.

I didn't find any references about this use case in devise_ldap_authenticatable's documentation.

I would like to know if it is possible to use this Ldap's mechanism with devise_ldap_authenticatable; I didn't find any references about this use case in documentation.