Updating cinder job with ACTIVE_STANDBY and failover tests

Deploy the cinder job with ACTIVE_STANDBY topology
Limit the number of tests to reduce timeouts: run only a failover test.

Change-Id: I0218daadbeaffb77017cb0d6dabb97cf99bd9c5c
diff --git a/zuul.d/jobs.yaml b/zuul.d/jobs.yaml
index 0d5a92b..e8413d5 100644
--- a/zuul.d/jobs.yaml
+++ b/zuul.d/jobs.yaml
@@ -967,6 +967,7 @@
           $OCTAVIA_CONF:
             controller_worker:
               volume_driver: volume_cinder_driver
+              loadbalancer_topology: ACTIVE_STANDBY
             cinder:
               volume_size: 2
       devstack_services:
@@ -993,6 +994,7 @@
         s-object: false
         s-proxy: false
         tempest: true
+      tempest_test_regex: ^octavia_tempest_plugin.tests.act_stdby_scenario.v2.test_active_standby\.
 
 # Temporary transitional aliases for gates used in other repos
 # Remove once octavia has transitioned job names