fuel client cannot authorize to keystone because of wrong credentials

[Dennis Dmitriev]

Reproduced on staging bvt_1 and bvt_2 jobs:
http://jenkins-product.srt.mirantis.net:8080/job/6.1.staging.centos.bvt_1/22/
http://jenkins-product.srt.mirantis.net:8080/job/6.1.staging.ubuntu.bvt_2/24/

Keystone API works fine, UI authorization pass.

Fuel-cli get the following error: http://paste.openstack.org/show/154695/

When fuel-cli call 'self._keystone_client.authenticate()' , class HTTPClient from keystoneclient package uses the following auth credentials:

tenant_name="admin"
username="admin"
password="admin"
auth_url = http://10.108.40.2/v2.0

First 'GET' request goes to nginx and is redirected to keystone.
Next 'POST' request goes not to keystone http://10.108.40.2:5000/v2.0, but to nginx again:
========= /var/log/docker-logs/nginx/access_nailgun.log
10.108.40.2 - - [25/Dec/2014:21:05:46 +0000] "GET /keystone/v2.0 HTTP/1.1" 200 416 "-" "python-keystoneclient"
10.108.40.2 - - [25/Dec/2014:21:05:46 +0000] "POST /v2.0/tokens HTTP/1.1" 404 162 "-" "python-keystoneclient"

Artem Panchenko found a commit that caused the regression:
https://github.com/stackforge/fuel-library/commit/34238f354ff5a462a5cd187b740ca946a3e78bcb

[OpenStack Infra (hudson-openstack)]

Fix proposed to branch: master
Review: https://review.openstack.org/144058

[Tatyanka (tatyana-leontovich)]

Was not reproduced on our bvt tests

[Artem Panchenko (apanchenko-8)]

This issue doesn't affect 6.0.x, commit 34238f354ff5a462a5cd187b740ca946a3e78bcb was merged to master branch only.