Comment 0 for bug 1260710

I hit this issue while working on input-scenario bp for tempest [0], [1].

The idea of the blueprint is to multiply scenario tests based on dynamic data such as the list of images / flavors.
Generating the list of tests requires tempest.conf being available.

With my change in, the gate-tempest-python27 fails when trying to list tests, because tempest.conf is not available.
If the box where the job runs is not a devstack box, it would be enough to:
- either copy tempest.conf.sample to tempest.conf
- or set the TEMPEST_CONFIG environment variable to tempest.conf.sample

[0] https://review.openstack.org/#/c/60434/
[1] https://blueprints.launchpad.net/openstack/?searchtext=input-scenarios-for-scenario