Comment 8 for bug 1518632

Reviewed: https://review.openstack.org/249383
Committed: https://git.openstack.org/cgit/openstack/neutron/commit/?id=80aa77be9833898b2ab8f44d084b4731fa4e8daf
Submitter: Jenkins
Branch: stable/kilo

commit 80aa77be9833898b2ab8f44d084b4731fa4e8daf
Author: Ihar Hrachyshka <email address hidden>
Date: Tue Nov 24 15:13:00 2015 +0100

    tox: pass TEMPEST_CONFIG_DIR envvar into api target environment

    Currently, API job skips all tests because TEMPEST_CONFIG_DIR is not set
    properly. The environment variable was hardcoded to
    /opt/stack/tempest/etc before, and since that's the location for tempest
    configuration files that was used in gate, it worked fine there.

    But after we were forced to remove the hardcoded value from the file due
    to regression in tox 2.2.0+ (If3742b6eabe295a5aaeb4901c55909a70c451698),
    it was neither hardcoded, nor passed from the external gate environment.

    Note that since tox 2.0.0, the tool does not pass all envvars into tox
    targets, but require explicit specification of the list of variables
    that should be allowed into the target environment, using passenv
    directive.

    So that's what the patch does: it allows TEMPEST_CONFIG_DIR to get into
    api tox target, which should be enough to make the API job avoid
    skipping all tests.

    Users are still required to set TEMPEST_CONFIG_DIR variable locally if
    they want to execute the suite locally.

    Conflicts:
     tox.ini

    Closes-Bug: #1518632
    Change-Id: Ia7dcc6785390a6012c7ba16a14573aa44f2b6fb5
    (cherry picked from commit 143b3dc2864bec1f92eeed44a351e420ae68fd58)