This plugin provides authentication and authorisation backends for RabbitMQ that use LDAP.
You can build and install it like any other plugin (see http://www.rabbitmq.com/plugin-development.html).
See LDAP guide on rabbitmq.com.
Prior to RabbitMQ 3.6.0, this plugin opened a new LDAP server connection for every operation. 3.6.0 and later versions use a pool of connections.