Comment 2 for bug 1569242

As explained in IRC, that looks like a configuration problem :

- https://github.com/openstack/python-ironicclient/blob/master/ironicclient/client.py#L78 takes the endpoint value from ironic_url in parameters
- whose value is taken from a config opt https://github.com/openstack/nova/blob/master/nova/api/openstack/compute/baremetal_nodes.py#L60
- where https://github.com/openstack/nova/blob/master/nova/conf/ironic.py#L29-L31 is default to None (meaning you have to set it)