move external_network auto-assign to Heat context

if there are no external networks defined
then assign the external network to the first
network as determined by standard sorting

Change-Id: I9d32eca258f8e7de3d44cec4124c0e8c020c0b85
Signed-off-by: Ross Brattain <ross.b.brattain@intel.com>

2 files changed, 15 insertions, 14 deletions

diff --git a/yardstick/benchmark/contexts/heat.py b/yardstick/benchmark/contexts/heat.py
index c5c127966..2fe9c8c8b 100644
--- a/yardstick/benchmark/contexts/heat.py
+++ b/yardstick/benchmark/contexts/heat.py
@@ -58,6 +58,16 @@ class HeatContext(Context):
              get_short_key_uuid(self.key_uuid)])
         super(HeatContext, self).__init__()
 
+    def assign_external_network(self, networks):
+        sorted_networks = sorted(networks.items())
+        external_network = os.environ.get("EXTERNAL_NETWORK", "net04_ext")
+        have_external_network = [(name, net)
+                                 for name, net in sorted_networks if
+                                 net.get("external_network")]
+        # no external net defined, assign it to first network usig os.environ
+        if sorted_networks and not have_external_network:
+            sorted_networks[0][1]["external_network"] = external_network
+
     def init(self, attrs):     # pragma: no cover
         """initializes itself from the supplied arguments"""
         self.name = attrs["name"]
@@ -87,9 +97,10 @@ class HeatContext(Context):
                               for name, sgattrs in attrs.get(
                               "server_groups", {}).items()]
 
-        for name, netattrs in attrs["networks"].items():
-            network = Network(name, self, netattrs)
-            self.networks.append(network)
+        self.assign_external_network(attrs["networks"])
+
+        self.networks = [Network(name, self, netattrs) for name, netattrs in
+                         sorted(attrs["networks"].items())]
 
         for name, serverattrs in attrs["servers"].items():
             server = Server(name, self, serverattrs)
diff --git a/yardstick/benchmark/core/task.py b/yardstick/benchmark/core/task.py
index aecf5bf4a..b81b9be68 100644
--- a/yardstick/benchmark/core/task.py
+++ b/yardstick/benchmark/core/task.py
@@ -272,18 +272,8 @@ class TaskParser(object):       # pragma: no cover
                                                   name_suffix)
             except KeyError:
                 pass
+            # default to Heat context because we are testing OpenStack
             context_type = cfg_attrs.get("type", "Heat")
-            if "Heat" == context_type and "networks" in cfg_attrs:
-                # bugfix: if there are more than one network,
-                # only add "external_network" on first one.
-                # the name of netwrok should follow this rule:
-                # test, test2, test3 ...
-                # sort network with the length of network's name
-                sorted_networks = sorted(cfg_attrs["networks"])
-                # config external_network based on env var
-                cfg_attrs["networks"][sorted_networks[0]]["external_network"] \
-                    = os.environ.get("EXTERNAL_NETWORK", "net04_ext")
-
             context = Context.get(context_type)
             context.init(cfg_attrs)