Tempest results are currently written to stdout as part of a test run.
This output is difficult to parse. This patch adds steps to generate an
XML report, and make this report available in /tmp on a physical host.
The report is copied to a physical host so that external systems that do
not have knowledge of the container inventory can retrieve the report,
for example Jenkins.
* Add pip packages python-subunit and junitxml to tempest venv, needed
to convert the subunit stream stored in testrepository to junit XML.
* openstack_tempest_gate:
After a tempest run completes, the subunit stream is extracted from
the testrepository, converted to junit XML and written to /tmp in
the utility container running the tests.
* run-tempest.sh
After running openstack_tempest_gate, retrieve XML results and write
them to /tmp on the host.
Change-Id: I897024f545dd2a90f80b0d5c0aa558f335dc963a
Closes-Bug: #1464686
8a7d5179d6