is_using_neutron method returns True even if there is no neutron endpoint

[Vitalii Gridnev]

To reproduce this one you have to create a security group using heat in nova-network env (without neutron) like that is done sahara code. heat stack creation will be failed, because there is no neutron endpoint, but for sure it's not really needed. Now it's breaking sahara gates.

 Logs:

[0] http://logs.openstack.org/06/347406/3/check/gate-sahara-dsvm-scenario-nova-heat/391bf43/logs/screen-h-eng.txt.gz?level=WARNING

[Rabi Mishra (rabi)]

It seems just creating a SessionClient does not ensure that the endpoint for that service exists in the catalog.

[OpenStack Infra (hudson-openstack)]

Reviewed: https://review.openstack.org/347855
Committed: https://git.openstack.org/cgit/openstack/heat/commit/?id=74815dafd9a2459d691ac2bb6c0df27d8277bb42
Submitter: Jenkins
Branch: master

commit 74815dafd9a2459d691ac2bb6c0df27d8277bb42
Author: Rabi Mihsra <email address hidden>
Date: Wed Jul 27 16:59:59 2016 +0300

    Fix is_using_neutron

    Recently we moved to use SessionClient with
    the client plugins and it seems, just
    creating the client does not ensure that the
    service is available. We should check for
    the endpoint.

    Change-Id: Iae9fa8758314a4b04224127a181eb1054aa72d8a
    Closes-Bug: #1606951

[Rabi Mishra (rabi)]

We should probably have something at the gate to test with nova-network.

[OpenStack Infra (hudson-openstack)]

This issue was fixed in the openstack/heat 7.0.0.0b3 development milestone.