Specify valid external network as an env

In some deployments, the retrieved external network by the
def get_external_net checked by "router:external" is not available.
So it is necessary to specify the available external network
as an env by user for some deployments.

JIRA: FUNCTEST-865

Change-Id: I561bc7d57e06214516a4cdbebd67632cd9746fba
Signed-off-by: Linda Wang <wangwulin@huawei.com>

1 files changed, 8 insertions, 1 deletions

diff --git a/functest/utils/openstack_utils.py b/functest/utils/openstack_utils.py
index 335f14cd..8b59c954 100644
--- a/functest/utils/openstack_utils.py
+++ b/functest/utils/openstack_utils.py
@@ -22,8 +22,8 @@ from heatclient import client as heatclient
 from novaclient import client as novaclient
 from keystoneclient import client as keystoneclient
 from neutronclient.neutron import client as neutronclient
-from functest.utils.constants import CONST
 
+from functest.utils.constants import CONST
 import functest.utils.functest_utils as ft_utils
 
 logger = logging.getLogger(__name__)
@@ -713,6 +713,8 @@ def get_private_net(neutron_client):
 
 
 def get_external_net(neutron_client):
+    if (hasattr(CONST, 'EXTERNAL_NETWORK')):
+        return CONST.__getattribute__('EXTERNAL_NETWORK')
     for network in neutron_client.list_networks()['networks']:
         if network['router:external']:
             return network['name']
@@ -720,6 +722,11 @@ def get_external_net(neutron_client):
 
 
 def get_external_net_id(neutron_client):
+    if (hasattr(CONST, 'EXTERNAL_NETWORK')):
+        networks = neutron_client.list_networks(
+            name=CONST.__getattribute__('EXTERNAL_NETWORK'))
+        net_id = networks['networks'][0]['id']
+        return net_id
     for network in neutron_client.list_networks()['networks']:
         if network['router:external']:
             return network['id']