When Conjur is configured with the LDAP authenticator, there are two environment variables that must be set on the appliance (Master and Followers) for the Conjur UI to use the LDAP authenticator:
The first is the CONJUR_AUTHENTICATORS
variable which configures
which defined authenticators are enabled to use, which may include
the built-in default, 'authn'.
CONJUR_AUTHENTICATORS="authn-ldap/ldap-server,authn"
The second is the CONJUR_AUTHN_URL
which configures the Conjur API
in the UI to use the desired authenticator instead of the default.
localhost
in this case refers to the UI accessing the Conjur server
within the same appliance. This followers the documentation described
for the API here: https://www.conjur.org/api.html#authentication
CONJUR_AUTHN_URL="http://localhost/authn-ldap/ldap-server"