when i am calling in compute server details using openstack CLI is given all server details but image datils is given empty

API Calling :

curl -s   -H "X-Auth-Token: token"   http://ipaddress:8774/v2.1/servers/a4f503ce-a7f6-441c-abce-a5d195181968 | python -mjson.tool

Response :

t_destinations\n    return self.queryclient.select_destinations(context, spec_obj)\n  File \"/opt/stack/nova/nova/scheduler/client/__init__.py\", line 37, in __run_method\n    return getattr(self.instance, __name)(*args, **kwargs)\n  File \"/opt/stack/nova/nova/scheduler/client/query.py\", line 32, in select_destinations\n    return self.scheduler_rpcapi.select_destinations(context, spec_obj)\n  File \"/opt/stack/nova/nova/scheduler/rpcapi.py\", line 127, in select_destinations\n    return cctxt.call(ctxt, 'select_destinations', **msg_args)\n  File \"/usr/local/lib/python2.7/dist-packages/oslo_messaging/rpc/client.py\", line 169, in call\n    retry=self.retry)\n  File \"/usr/local/lib/python2.7/dist-packages/oslo_messaging/transport.py\", line 97, in _send\n    timeout=timeout, retry=retry)\n  File \"/usr/local/lib/python2.7/dist-packages/oslo_messaging/_drivers/amqpdriver.py\", line 458, in send\n    retry=retry)\n  File \"/usr/local/lib/python2.7/dist-packages/oslo_messaging/_drivers/amqpdriver.py\", line 449, in _send\n    raise result\n",
            "message": "No valid host was found. There are not enough hosts available."
        },
         "flavor": {
            "id": "1",
            "links": [
                {
                    "href": "http://ipaddress:8774/flavors/1",
                    "rel": "bookmark"
                }
            ]
        },
        "hostId": "",
        "id": "a4f503ce-a7f6-441c-abce-a5d195181968",


"image": ""

,
        "key_name": null,
        "links": [
            {
                "href": "http://ipaddress8774/v2.1/servers/a4f503ce-a7f6-441c-abce-a5d195181968",
                "rel": "self"
            },
            {
                "href": "http://ipaddress:8774/servers/a4f503ce-a7f6-441c-abce-a5d195181968",
                "rel": "bookmark"
            }
        ],
        "metadata": {},
        "name": "locuz-firstvolume",
        "os-extended-volumes:volumes_attached": [],
        "status": "ERROR",
        "tenant_id": "8289d8d34ee446b98dd84081e9163341",
        "updated": "2016-12-20T09:20:47Z",
        "user_id": "f039a36712594e84bb247e4bed259a43"
    }
}

please explain why is showing image empty details .