TVD: Add default plugin configuration

New configuration parameter under [nsx_tvd] named default_plugin.
It can be one of 'nsx-t', 'nsx-v', 'dvs, with the default of default
'nsx-t'.

When an unknown/new project uses one of the core plugin methods, without
a project-plugin mapping in the DB, it will be automatically mapped to
the default plugin.

Change-Id: I850a4cc00ee11a9c5e0d0aac385a8bae79018958

vmware_nsx/common/config.py

@@ -21,6 +21,7 @@ from neutron.conf.db import l3_hamode_db
 from vmware_nsx._i18n import _
 from vmware_nsx.common import exceptions as nsx_exc
 from vmware_nsx.dvs import dvs_utils
+from vmware_nsx.extensions import projectpluginmap
 from vmware_nsx.extensions import routersize
 
 LOG = logging.getLogger(__name__)
@@ -829,6 +830,11 @@ nsx_tvd_opts = [
                 help=_("An ordered list of DVS extension driver "
                        "entrypoints to be loaded from the "
                        "vmware_nsx.extension_drivers namespace.")),
+    cfg.StrOpt('default_plugin',
+               default=projectpluginmap.NsxPlugins.NSX_T,
+               choices=projectpluginmap.VALID_TYPES,
+               help=_("The default plugin that will be used for new projects "
+                      "that were not added to the projects plugin mapping.")),
 ]
 
 # Register the configuration options

vmware_nsx/plugins/nsx/plugin.py

@@ -18,6 +18,7 @@ from neutron_lib.api.definitions import port as port_def
 from neutron_lib.api.definitions import subnet as subnet_def
 from neutron_lib import context as n_context
 from neutron_lib.plugins import directory
+from oslo_config import cfg
 from oslo_log import log as logging
 
 from neutron.db import _resource_extend as resource_extend
@@ -41,7 +42,7 @@ from neutron_lib.api import validators
 from neutron_lib import exceptions as n_exc
 
 from vmware_nsx.common import availability_zones as nsx_com_az
-from vmware_nsx.common import config  # noqa
+from vmware_nsx.common import config
 from vmware_nsx.common import exceptions as nsx_exc
 from vmware_nsx.common import managers as nsx_managers
 from vmware_nsx.db import (
@@ -116,6 +117,7 @@ class NsxTVDPlugin(addr_pair_db.AllowedAddressPairsMixin,
     def init_plugins(self):
         # initialize all supported plugins
         self.plugins = {}
+
         try:
             self.plugins[projectpluginmap.NsxPlugins.NSX_T] = t.NsxV3Plugin()
         except Exception as e:
@@ -141,13 +143,13 @@ class NsxTVDPlugin(addr_pair_db.AllowedAddressPairsMixin,
             msg = _("No active plugins were found")
             raise nsx_exc.NsxPluginException(err_msg=msg)
 
-        # update the default plugin for new projects as the NSX-T
-        # TODO(asarfaty): make the default configurable?
-        if projectpluginmap.NsxPlugins.NSX_T in self.plugins:
-            self.default_plugin = projectpluginmap.NsxPlugins.NSX_T
-        else:
-            # If the NSX-T is not supported, use another one
-            self.default_plugin = self.plugins.keys()[0]
+        # update the default plugin for new projects
+        self.default_plugin = cfg.CONF.nsx_tvd.default_plugin
+        if self.default_plugin not in self.plugins:
+            msg = (_("The default plugin %s failed to start") %
+                self.default_plugin)
+            raise nsx_exc.NsxPluginException(err_msg=msg)
+
         LOG.info("NSX-TVD plugin will use %s as the default plugin",
             self.default_plugin)
 

vmware_nsx/tests/unit/nsx_tvd/test_plugin.py

@@ -15,6 +15,7 @@
 
 import mock
 
+from oslo_config import cfg
 from oslo_utils import uuidutils
 
 from neutron_lib import context
@@ -37,6 +38,12 @@ class NsxTVDPluginTestCase(v_tests.NsxVPluginV2TestCase,
               plugin=PLUGIN_NAME,
               ext_mgr=None,
               service_plugins=None):
+
+        # set the default plugin
+        if self.plugin_type:
+            cfg.CONF.set_override('default_plugin', self.plugin_type,
+                                  group="nsx_tvd")
+
         super(NsxTVDPluginTestCase, self).setUp(
             plugin=plugin,
             ext_mgr=ext_mgr)
@@ -65,13 +72,14 @@ class NsxTVDPluginTestCase(v_tests.NsxVPluginV2TestCase,
         self.assertTrue(self.core_plugin.is_tvd_plugin())
         self.assertIsNotNone(self.sub_plugin)
 
-    def _test_call_create(self, obj_name, calls_count=1):
+    def _test_call_create(self, obj_name, calls_count=1, project_id=None):
         method_name = 'create_%s' % obj_name
         func_to_call = getattr(self.core_plugin, method_name)
-
+        if not project_id:
+            project_id = self.project_id
         with mock.patch.object(self.sub_plugin, method_name) as sub_func:
             func_to_call(self.context,
-                         {obj_name: {'tenant_id': self.project_id}})
+                         {obj_name: {'tenant_id': project_id}})
             self.assertEqual(calls_count, sub_func.call_count)
 
     def _test_call_create_with_net_id(self, obj_name, field_name='network_id',
@@ -326,6 +334,10 @@ class TestPluginWithDefaultPlugin(NsxTVDPluginTestCase):
             self.core_plugin.disassociate_floatingips(self.context, port_id)
             sub_func.assert_called_once()
 
+    def test_new_user(self):
+        project_id = _uuid()
+        self._test_call_create('network', project_id=project_id)
+
 
 class TestPluginWithNsxv(TestPluginWithDefaultPlugin):
     """Test TVD plugin with the NSX-V sub plugin"""