CI is broken for fuel-ostf repository (stable/mitaka branch)

Timur, please look at the fail logs from review, and assign to the proper team

In OSTF logs we can see:

paramiko.transport: DEBUG: Dropping user packet because connection is dead.
fuel_health.tests.ha.test_haproxy: DEBUG: Dead backends ['object-storage node-2 Status: DOWN/L7TOUT Sessions: 0 Rate: 0 ']

2016-09-07 12:08:25 FAILURE Check state of haproxy backends on controllers (fuel_health.tests.ha.test_haproxy.HAProxyCheck.test_001_check_state_of_backends) Some haproxy backend has down state.. Please refer to OpenStack logs for more details. File "/usr/lib/python2.7/site-packages/unittest2/case.py", line 67, in testPartExecutor
    yield
  File "/usr/lib/python2.7/site-packages/unittest2/case.py", line 601, in run
    testMethod()
  File "/usr/lib/python2.7/site-packages/fuel_health/tests/ha/test_haproxy.py", line 92, in test_001_check_state_of_backends
    "Step 2 failed: Some haproxy backend has down state.")
  File "/usr/lib/python2.7/site-packages/fuel_health/common/test_mixins.py", line 164, in verify_response_true
    self.fail(message.format(failed_step_msg, msg))
  File "/usr/lib/python2.7/site-packages/unittest2/case.py", line 666, in fail
    raise self.failureException(msg)
Step 2 failed: Some haproxy backend has down state.. Please refer to OpenStack logs for more details.

It looks like the issue was fixed by updating of the version of fuel-qa code which we use in this job.

From the other side the issue is not completely fixed because now we use new fuel-qa version which is also unstable (see runs 410 and 411 for example - two runs with the same version of code, one run failed and one passed...):
https://ci.fuel-infra.org/job/mitaka.fuel-ostf.pkgs.ubuntu.gate_ostf_update/

The reason:

in job https://ci.fuel-infra.org/job/mitaka.fuel-ostf.pkgs.ubuntu.gate_ostf_update we use the following group of tests: "gate_ostf_update"
https://github.com/openstack/fuel-qa/blob/347cd353f5a82d1ff44e4ef8302f36d5984b0a0f/gates_tests/tests/test_review_in_ostf.py#L107-L143
see logs for more details:
https://ci.fuel-infra.org/job/mitaka.fuel-ostf.pkgs.ubuntu.gate_ostf_update/415/consoleFull

In job which validate the fuel-qa code we use group bvt_2 for the verification of fuel-qa code which we will use in gate_ostf_update job, in the result we use different tests in these jobs and sometimes we select the version of the code which breaks the gates for fuel-ostf.

Infra team has nothing to do with this issue. PLease discuss between Dev and QA teams what exactly you want to test on a patchset in fuel-ostf repo and then send a patch to update CI configuration

The fix is on review:

https://review.openstack.org/#/c/367450/

We have committed the fix to fuel-qa repository, need to update the CI job, here is the bug for CI team:

https://bugs.launchpad.net/fuel/+bug/1621523