--- fixes: - | Currently Ironic allows entering deployment or cleaning for nodes in maintenance mode. However, heartbeats do not cause any actions for such nodes, thus deployment or cleaning will never finish if the nodes are not moved out of maintenance. A new configuration option ``[conductor]allow_provisioning_in_maintenance`` (defaulting to ``True``) is added to configure this behavior. If it is set to ``False``, deployment and cleaning will be prevented from nodes in maintenance mode.