Allow sress test runner to skip based on available services

Also add run network connectivity start/stop test as stress.

Change-Id: I3441d1deb7804033f73441a626e9cb8ae632501a
diff --git a/tempest/scenario/test_network_advanced_server_ops.py b/tempest/scenario/test_network_advanced_server_ops.py
index a62694b..9ffc8a5 100644
--- a/tempest/scenario/test_network_advanced_server_ops.py
+++ b/tempest/scenario/test_network_advanced_server_ops.py
@@ -94,6 +94,7 @@
         self._check_network_connectivity()
 
     @test.idempotent_id('61f1aa9a-1573-410e-9054-afa557cab021')
+    @test.stresstest(class_setup_per='process')
     @test.services('compute', 'network')
     def test_server_connectivity_stop_start(self):
         self._setup_network_and_servers()
diff --git a/tempest/stress/driver.py b/tempest/stress/driver.py
index e007a49..0b3ac8f 100644
--- a/tempest/stress/driver.py
+++ b/tempest/stress/driver.py
@@ -132,7 +132,14 @@
         computes = _get_compute_nodes(controller, ssh_user, ssh_key)
         for node in computes:
             do_ssh("rm -f %s" % logfiles, node, ssh_user, ssh_key)
+    skip = False
     for test in tests:
+        for service in test.get('required_services', []):
+            if not CONF.service_available.get(service):
+                skip = True
+                break
+        if skip:
+            break
         if test.get('use_admin', False):
             manager = admin_manager
         else:
diff --git a/tempest/stress/etc/stress-tox-job.json b/tempest/stress/etc/stress-tox-job.json
index dffc469..9cee316 100644
--- a/tempest/stress/etc/stress-tox-job.json
+++ b/tempest/stress/etc/stress-tox-job.json
@@ -15,5 +15,14 @@
   "use_admin": false,
   "use_isolated_tenants": false,
   "kwargs": {}
+  },
+  {"action": "tempest.stress.actions.unit_test.UnitTest",
+  "threads": 4,
+  "use_admin": false,
+  "use_isolated_tenants": false,
+  "required_services": ["neutron"],
+  "kwargs": {"test_method": "tempest.scenario.test_network_advanced_server_ops.TestNetworkAdvancedServerOps.test_server_connectivity_stop_start",
+             "class_setup_per": "process"}
   }
 ]
+