functional tests fail on fedora

[Mike Fedosin]

When I execute "tox -e py27" in Fedora 25/26 I get

{0} glare.tests.functional.test_all.TestAll.test_all [30.864266s] ... FAILED

Captured traceback:
~~~~~~~~~~~~~~~~~~~
    Traceback (most recent call last):
      File "glare/tests/functional/base.py", line 69, in setUp
        self.start_servers(**self.__dict__.copy())
      File "glare/tests/functional/__init__.py", line 573, in start_servers
        self.start_with_retry(self.glare_server, 'glare_port', 3, **kwargs)
      File "glare/tests/functional/__init__.py", line 555, in start_with_retry
        launch_msg = self.wait_for_servers([server], expect_launch)
      File "glare/tests/functional/__init__.py", line 639, in wait_for_servers
        'command.' % self.tracecmd)
    RuntimeError: No executable found for "strace" command.

It happens because of
1. strace package isn't installed in the system
2. inner bug of oslo_service https://bugs.launchpad.net/oslo.service/+bug/1510234

[OpenStack Infra (hudson-openstack)]

Fix proposed to branch: master
Review: https://review.openstack.org/506934

[OpenStack Infra (hudson-openstack)]

Fix proposed to branch: stable/pike
Review: https://review.openstack.org/506935

[OpenStack Infra (hudson-openstack)]

Fix proposed to branch: stable/ocata
Review: https://review.openstack.org/506936

[OpenStack Infra (hudson-openstack)]

Reviewed: https://review.openstack.org/506934
Committed: https://git.openstack.org/cgit/openstack/glare/commit/?id=a30cdaf6a974d04652b6312995989d952f47924b
Submitter: Jenkins
Branch: master

commit a30cdaf6a974d04652b6312995989d952f47924b
Author: Mike Fedosin <email address hidden>
Date: Sun Sep 24 15:27:49 2017 +0300

    Allow eventlet hub to use monotonic clock

    Import oslo_service first, so that it makes eventlet
    hub use a monotonic clock to avoid issues with drifts
    of system time.

    Change-Id: Ia260a5eb52bacdf202e5204d5b7b2bd281174a4a
    Closes-bug: #1719178
    Related-bug: #1510234

[OpenStack Infra (hudson-openstack)]

Reviewed: https://review.openstack.org/506935
Committed: https://git.openstack.org/cgit/openstack/glare/commit/?id=1f798c3116dc4ddc9dcfd295d6527afa01f843cb
Submitter: Jenkins
Branch: stable/pike

commit 1f798c3116dc4ddc9dcfd295d6527afa01f843cb
Author: Mike Fedosin <email address hidden>
Date: Sun Sep 24 15:27:49 2017 +0300

    Allow eventlet hub to use monotonic clock

    Import oslo_service first, so that it makes eventlet
    hub use a monotonic clock to avoid issues with drifts
    of system time.

    Change-Id: Ia260a5eb52bacdf202e5204d5b7b2bd281174a4a
    Closes-bug: #1719178
    Related-bug: #1510234

[OpenStack Infra (hudson-openstack)]

Reviewed: https://review.openstack.org/506936
Committed: https://git.openstack.org/cgit/openstack/glare/commit/?id=5faf91de74a63466ce17029510f344ab4cc3dc72
Submitter: Jenkins
Branch: stable/ocata

commit 5faf91de74a63466ce17029510f344ab4cc3dc72
Author: Mike Fedosin <email address hidden>
Date: Sun Sep 24 15:27:49 2017 +0300

    Allow eventlet hub to use monotonic clock

    Import oslo_service first, so that it makes eventlet
    hub use a monotonic clock to avoid issues with drifts
    of system time.

    Change-Id: Ia260a5eb52bacdf202e5204d5b7b2bd281174a4a
    Closes-bug: #1719178
    Related-bug: #1510234