Merge "Fix errors in designate scenarios jobs"

.zuul.yaml

@@ -791,9 +791,24 @@
         DESIGNATE_BACKEND_DRIVER: bind9
         DOWNLOAD_DEFAULT_IMAGES: false
         IMAGE_URLS: http://download.cirros-cloud.net/0.3.4/cirros-0.3.4-i386-disk.img,
+        Q_AGENT: openvswitch
         # In this job advanced image is not needed, so it's name should be
         # empty
         ADVANCED_IMAGE_NAME: ""
+      devstack_local_conf:
+        post-config:
+          $NEUTRON_CONF:
+            DEFAULT:
+              enable_dvr: false
+          # NOTE(slaweq): We can get rid of this hardcoded absolute path when
+          # devstack-tempest job will be switched to use lib/neutron instead of
+          # lib/neutron-legacy
+          /$NEUTRON_CORE_PLUGIN_CONF:
+            agent:
+              tunnel_types: vxlan,gre
+            ovs:
+              tunnel_bridge: br-tun
+              bridge_mappings: public:br-ex
       devstack_plugins:
         designate: https://opendev.org/openstack/designate.git
       devstack_services: