test/openstack: Adjust installation file to newest changes in devstack.

Use python3 when installing devstack.
Increase timeouts in order to tests pass in our CI environment.

Change-Id: I6b88e39f9a8f0b8aa255098dc62b881168777ec3
Signed-off-by: Pawel Kaminski <pawelx.kaminski@intel.com>
Reviewed-on: https://review.gerrithub.io/c/spdk/spdk/+/472921
Tested-by: SPDK CI Jenkins <sys_sgci@intel.com>
Reviewed-by: Maciej Szwed <maciej.szwed@intel.com>
Reviewed-by: Karol Latecki <karol.latecki@intel.com>
Reviewed-by: Jim Harris <james.r.harris@intel.com>
Reviewed-by: Tomasz Zawadzki <tomasz.zawadzki@intel.com>

scripts/vagrant/local.conf

@@ -1,11 +1,10 @@
 [[local|localrc]]
-enable_plugin heat https://git.openstack.org/openstack/heat stable/stein
-enable_plugin tacker https://git.openstack.org/openstack/tacker stable/stein
 ADMIN_PASSWORD=secret
 DATABASE_PASSWORD=secret
 RABBIT_PASSWORD=secret
 SERVICE_PASSWORD=secret
 HOST_IP=10.0.2.15
+USE_PYTHON3=True
 
 # These options define expected driver capabilities
 TEMPEST_VOLUME_DRIVER=spdk
@@ -18,8 +17,20 @@ LIBVIRT_FIREWALL_DRIVER=nova.virt.firewall.NoopFirewallDriver
 CINDER_SECURE_DELETE=False
 public_interface=eth0
 
+[[test-config|$TEMPEST_CONFIG]]
+[compute]
+build_timeout = 1200
+fixed_network_name = net0
+
+[volume]
+build_timeout = 1200
+
+[validation]
+ssh_timeout = 396
+
 [[post-config|$CINDER_CONF]]
 [DEFAULT]
+default_volume_type = SPDK
 enabled_backends = spdk
 target_helper = spdk-nvmeof
 debug = True
@@ -35,4 +46,5 @@ target_protocol = nvmet_rdma
 target_helper = spdk-nvmeof
 target_prefix = nqn.2014-08.org.spdk
 volume_driver = cinder.volume.drivers.spdk.SPDKDriver
-volume_backend_name = lvmdriver-1
+volume_backend_name = SPDK
+spdk_max_queue_depth = 32