Skip iptables act/stby test based on topology set

Task: 35877
Story: 2006260

Change-Id: I53671c7e93737b0d7bc038b4dd136a179facd34a

octavia_tempest_plugin/common/constants.py

@@ -97,6 +97,7 @@ ERROR = 'ERROR'
 SORT = 'sort'
 SINGLE = 'SINGLE'
 ACTIVE_STANDBY = 'ACTIVE_STANDBY'
+SUPPORTED_LB_TOPOLOGIES = (SINGLE, ACTIVE_STANDBY)
 
 # Protocols
 HTTP = 'HTTP'

octavia_tempest_plugin/config.py

@@ -111,6 +111,10 @@ OctaviaGroup = [
                 default={'amphora': 'The Octavia Amphora driver.',
                          'octavia': 'Deprecated alias of the Octavia Amphora '
                          'driver.'}),
+    cfg.StrOpt('loadbalancer_topology',
+               default=const.SINGLE,
+               choices=const.SUPPORTED_LB_TOPOLOGIES,
+               help='Load balancer topology configuration.'),
     # Networking
     cfg.BoolOpt('test_with_ipv6',
                 default=True,

octavia_tempest_plugin/tests/act_stdby_scenario/v2/test_active_standby_iptables.py

@@ -46,6 +46,10 @@ class ActiveStandbyIptablesScenarioTest(
                                     "or 'octavia' (alias to 'amphora', "
                                     "deprecated) set.")
 
+        if CONF.load_balancer.loadbalancer_topology != const.ACTIVE_STANDBY:
+            raise cls.skipException("Configured load balancer topology is not "
+                                    "%s." % const.ACTIVE_STANDBY)
+
     @classmethod
     def resource_setup(cls):
         """Setup resources needed by the tests."""

zuul.d/jobs.yaml

@@ -502,6 +502,7 @@
           "$TEMPEST_CONFIG":
             load_balancer:
               check_timeout: 180
+              loadbalancer_topology: 'ACTIVE_STANDBY'
       tempest_test_regex: ^octavia_tempest_plugin.tests.act_stdby_scenario.v2.test_active_standby_iptables
       tox_envlist: all