fails of fuel-web deployment tests

[Nikita Zubkov]

Looks like code in master is broken

CI job master.fuel-web.pkgs.ubuntu.review_fuel_web_deploy fails on every patch:

https://ci.fuel-infra.org/job/master.fuel-web.pkgs.ubuntu.review_fuel_web_deploy/4529/console
https://ci.fuel-infra.org/job/master.fuel-web.pkgs.ubuntu.review_fuel_web_deploy/4528/console
https://ci.fuel-infra.org/job/master.fuel-web.pkgs.ubuntu.review_fuel_web_deploy/4523/console

FAIL: proboscis.case.MethodTest (gate_fuel_web)
----------------------------------------------------------------------
Traceback (most recent call last):
  File "/home/jenkins/venv-nailgun-tests-2.9/local/lib/python2.7/site-packages/proboscis/case.py", line 296, in testng_method_mistake_capture_func
    compatability.capture_type_error(s_func)
  File "/home/jenkins/venv-nailgun-tests-2.9/local/lib/python2.7/site-packages/proboscis/compatability/exceptions_2_6.py", line 27, in capture_type_error
    func()
  File "/home/jenkins/venv-nailgun-tests-2.9/local/lib/python2.7/site-packages/proboscis/case.py", line 350, in func
    func(test_case.state.get_state())
  File "/home/jenkins/workspace/master.fuel-web.pkgs.ubuntu.review_fuel_web_deploy/fuel-qa/fuelweb_test/helpers/decorators.py", line 120, in wrapper
    result = func(*args, **kwargs)
  File "/home/jenkins/workspace/master.fuel-web.pkgs.ubuntu.review_fuel_web_deploy/fuel-qa/gates_tests/tests/test_review_fuel_web.py", line 93, in gate_fuel_web
    test_sets=['smoke'])
  File "/home/jenkins/workspace/master.fuel-web.pkgs.ubuntu.review_fuel_web_deploy/fuel-qa/core/helpers/log_helpers.py", line 32, in wrapped
    result = func(*args, **kwargs)
  File "/home/jenkins/workspace/master.fuel-web.pkgs.ubuntu.review_fuel_web_deploy/fuel-qa/fuelweb_test/models/fuel_web_client.py", line 1355, in run_ostf
    failed_test_name=failed_test_name, test_sets=test_sets)
  File "/home/jenkins/workspace/master.fuel-web.pkgs.ubuntu.review_fuel_web_deploy/fuel-qa/core/helpers/log_helpers.py", line 32, in wrapped
    result = func(*args, **kwargs)
  File "/home/jenkins/workspace/master.fuel-web.pkgs.ubuntu.review_fuel_web_deploy/fuel-qa/fuelweb_test/models/fuel_web_client.py", line 305, in assert_ostf_run
    indent=1)))
AssertionError: Failed 8 OSTF tests; should fail 0 tests. Names of failed tests:
  - Check network connectivity from instance via floating IP (failure) Time limit exceeded while waiting for removing floating IP to finish. Please refer to OpenStack logs for more details.
  - Create keypair (failure) Authorization failure. Please provide the valid credentials for your OpenStack environment, and reattempt.
  - Create security group (failure) Authorization failure. Please provide the valid credentials for your OpenStack environment, and reattempt.
  - Check network parameters (failure) Authorization failure. Please provide the valid credentials for your OpenStack environment, and reattempt.
  - Launch instance (failure) Authorization failure. Please provide the valid credentials for your OpenStack environment, and reattempt.
  - Launch instance with file injection (failure) Authorization failure. Please provide the valid credentials for your OpenStack environment, and reattempt.
  - Launch instance, create snapshot, launch instance from snapshot (failure) Authorization failure. Please provide the valid credentials for your OpenStack environment, and reattempt.
  - Create user and authenticate with it. (failure) Authorization failure. Please provide the valid credentials for your OpenStack environment, and reattempt.

[Maksim Malchuk (mmalchuk)]

slave-01:
    Host node-3
    Roles:
       Hiera:
           - primary-controller
       Nailgun:
           - controller
    Memory:
       RAM:
          used 2709
          cached 61
          free 82
          shared 56
          total 3008
          buffers 216
       SWAP:
          total 3071
          free 472
          used 2599

this is the same issue with lack of the memory and heavy swap usage for controllers we faced on 10.0.main.ubuntu.smoke_neutron and master.puppet-openstack.fuel-library.pkgs.ubuntu.smoke_neutron tests.

please feel free to update the original bug with more descriptive information from logs.