Run Tempest plugins

We want to run Tempest tests for a maximum of projects we're testing.
Tests are moving from Tempest tree to projects tree.

It takes care of installing tempest-lib which is required system wide to
run Tempest plugin tests.

To run tests from projects tree, we need to run tox with -eall-plugin
option.

This patch aims to change the way we run tox.

It also set manage_tests_packages to True so puppet-tempest will take
care of packaging dependencies required to run Tempest plugins tests in
RDO.

Depends-On: Iac9a57c2ba006bb2a660d2b54ee05bbe68125abf
Depends-On: I8f26968b5b817ffbb9f4dc4a0cb19ca0a1ef7d3d
Change-Id: I0942a7c9456d18528a2d84e143ae056973a7674f

manifests/tempest.pp

@@ -107,6 +107,7 @@ class openstack_integration::tempest (
     img_file               => 'cirros-0.3.4-x86_64-disk.img',
     compute_build_interval => 10,
     ca_certificates_file   => $::openstack_integration::params::ca_bundle_cert_path,
+    manage_tests_packages  => true,
     # TODO(emilien) optimization by 1/ using Hiera to configure Glance image source
     # and 2/ if running in the gate, use /home/jenkins/cache/files/ cirros image.
     # img_dir              => '/home/jenkins/cache/files',

run_tests.sh

@@ -129,6 +129,9 @@ $SUDO rm -f /tmp/openstack/tempest/cirros-0.3.4-x86_64-disk.img
 # TODO(emilien) later, we should use local image if present. That would be a next iteration.
 wget http://download.cirros-cloud.net/0.3.4/cirros-0.3.4-x86_64-disk.img -P /tmp/openstack/tempest
 
+# Tempest plugin tests require tempest-lib to be installed
+$SUDO pip install tempest-lib
+
 set +e
 # Select what to test:
 # Smoke suite
@@ -145,8 +148,9 @@ TESTS="${TESTS} TelemetryAlarming"
 # https://bugs.launchpad.net/ironic/+bug/1554237
 TESTS="${TESTS} api.baremetal.admin.test_drivers"
 
-cd /tmp/openstack/tempest; tox -eall -- --concurrency=2 $TESTS
+cd /tmp/openstack/tempest
+tox -eall-plugin -- --concurrency=2 $TESTS
 RESULT=$?
 set -e
-/tmp/openstack/tempest/.tox/all/bin/testr last --subunit > /tmp/openstack/tempest/testrepository.subunit
+testr last --subunit > /tmp/openstack/tempest/testrepository.subunit
 exit $RESULT