deploy_ceilometer_ha_with_external_mongo test failed on updating cluster attributes with 400 bad request {"message": "[mongo_user] Empty username", "errors": []}

[Andrey Sledzinskiy]

iso - 8.0-566

Steps:
1. Run deploy_ceilometer_ha_with_external_mongo system test (https://github.com/openstack/fuel-qa/blob/master/fuelweb_test/tests/test_services.py#L761)

It failed on updating cluster attributes - 2016-02-15 01:37:44,383 - ERROR http.py:105 -- Bad Request code 400 [{"message": "[mongo_user] Empty username", "errors": []}]

http://paste.openstack.org/show/486952/

logs are attached

[Vadim Rovachev (vrovachev)]

In logs:
"mongo_user":{
"regex":{
"source":"^\\w+$",
"error":"Empty username"
},
"description":"Mongo database username",
"weight":30,
"value":"\u0441\u0443\u0448\u0434\u0449\u044c\u0443\u0435\u0443\u043a",
"label":"Username",
"type":"text"
},

mongo user has incorrect incoding. At this moment this problem fixed.

[Vitaly Gusev (vgusev)]

Verified on 8.0-570 ISO
https://product-ci.infra.mirantis.net/view/8.0_swarm/job/8.0.system_test.ubuntu.services_ha.ceilometer/143/