fuel-web tests leave running fakeui process

[Aleksandra Fedorova]

See the log here https://fuel-jenkins.mirantis.com/job/verify-fuel-web/126/consoleFull

At the beginning of the test we have:

+ grep manage.py
jenkins 13130 0.0 0.0 11744 920 ? S 14:32 0:00 grep manage.py

And at the end:

+ grep manage.py
jenkins 18862 0.7 0.2 907476 42440 ? Sl 14:55 0:01 .tox/venv/bin/python manage.py run --port=5544 --config=/tmp/static_compressed/settings.yaml --fake-tasks --fake-tasks-tick-count=80 --fake-tasks-tick-interval=1
jenkins 18980 2.5 0.3 1054940 51036 ? Sl 14:55 0:06 .tox/venv/bin/python manage.py run --port=8003 --config= --fake-tasks --fake-tasks-tick-count=80 --fake-tasks-tick-interval=1
jenkins 23256 0.0 0.0 11748 924 ? S 14:59 0:00 grep manage.py

Running run_tests.sh with 'set -x' shows that first pid in a cycle is not catched by the grep filter.

[Evgeniy L (rustyrobot)]

`run_server` function sometimes doesn't return pid of the process, because tox not always have time to run the sever [1], need to add retry mechanism when we retrieve pid of the process

[1] https://github.com/stackforge/fuel-web/blob/fd4203b1163705c19e6a8208f427893a5617790d/run_tests.sh#L482-L483

[OpenStack Infra (hudson-openstack)]

Fix proposed to branch: master
Review: https://review.openstack.org/105409

[OpenStack Infra (hudson-openstack)]

Reviewed: https://review.openstack.org/105409
Committed: https://git.openstack.org/cgit/stackforge/fuel-web/commit/?id=62226f26e58905a057d9462d958dfe19d1f4416a
Submitter: Jenkins
Branch: master

commit 62226f26e58905a057d9462d958dfe19d1f4416a
Author: Dima Shulyak <email address hidden>
Date: Tue Jul 8 12:57:40 2014 +0300

    Properly kill running server after tests

    - verify that server is up and running by http request,
      and not port scanning
    - look for process pid when verification is done for server
    - use lsof for server pid detection
    - fix return from function, it should be either echoi $pid in function,
      or echo $?

    Change-Id: I10b13eaec267dd7ccb779acc2d12200884074e1d
    Closes-Bug: #1335847