Added networking-sfc from openstack project with merge date Dec 23 2015stable/coloradostable/brahmaputra

Added patch 13 for subject "add missing db migration files"

Change-Id: Id51a160335a14870c1dd816a44baf9b1958b9ac6

11 files changed, 380 insertions, 0 deletions

diff --git a/networking_sfc/services/flowclassifier/__init__.py b/networking_sfc/services/flowclassifier/__init__.py
new file mode 100644
index 0000000..e69de29
--- /dev/null
+++ b/networking_sfc/services/flowclassifier/__init__.py
diff --git a/networking_sfc/services/flowclassifier/common/__init__.py b/networking_sfc/services/flowclassifier/common/__init__.py
new file mode 100644
index 0000000..e69de29
--- /dev/null
+++ b/networking_sfc/services/flowclassifier/common/__init__.py
diff --git a/networking_sfc/services/flowclassifier/common/config.py b/networking_sfc/services/flowclassifier/common/config.py
new file mode 100644
index 0000000..ed2496f
--- /dev/null
+++ b/networking_sfc/services/flowclassifier/common/config.py
@@ -0,0 +1,27 @@
+# Copyright 2015 Futurewei. All rights reserved.
+#
+#    Licensed under the Apache License, Version 2.0 (the "License"); you may
+#    not use this file except in compliance with the License. You may obtain
+#    a copy of the License at
+#
+#         http://www.apache.org/licenses/LICENSE-2.0
+#
+#    Unless required by applicable law or agreed to in writing, software
+#    distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
+#    WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
+#    License for the specific language governing permissions and limitations
+#    under the License.
+
+from oslo_config import cfg
+
+
+FLOWCLASSIFIER_DRIVER_OPTS = [
+    cfg.ListOpt('drivers',
+                default=['dummy'],
+                help=_("An ordered list of flow classifier drivers "
+                       "entrypoints to be loaded from the "
+                       "networking_sfc.flowclassifier.drivers namespace.")),
+]
+
+
+cfg.CONF.register_opts(FLOWCLASSIFIER_DRIVER_OPTS, "flowclassifier")
diff --git a/networking_sfc/services/flowclassifier/common/context.py b/networking_sfc/services/flowclassifier/common/context.py
new file mode 100644
index 0000000..d873077
--- /dev/null
+++ b/networking_sfc/services/flowclassifier/common/context.py
@@ -0,0 +1,37 @@
+# Copyright 2015 Futurewei. All rights reserved.
+#
+#    Licensed under the Apache License, Version 2.0 (the "License"); you may
+#    not use this file except in compliance with the License. You may obtain
+#    a copy of the License at
+#
+#         http://www.apache.org/licenses/LICENSE-2.0
+#
+#    Unless required by applicable law or agreed to in writing, software
+#    distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
+#    WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
+#    License for the specific language governing permissions and limitations
+#    under the License.
+
+
+class FlowClassifierPluginContext(object):
+    """Flow Classifier context base class."""
+    def __init__(self, plugin, plugin_context):
+        self._plugin = plugin
+        self._plugin_context = plugin_context
+
+
+class FlowClassifierContext(FlowClassifierPluginContext):
+
+    def __init__(self, plugin, plugin_context, flowclassifier,
+                 original_flowclassifier=None):
+        super(FlowClassifierContext, self).__init__(plugin, plugin_context)
+        self._flowclassifier = flowclassifier
+        self._original_flowclassifier = original_flowclassifier
+
+    @property
+    def current(self):
+        return self._flowclassifier
+
+    @property
+    def original(self):
+        return self._original_flowclassifier
diff --git a/networking_sfc/services/flowclassifier/common/exceptions.py b/networking_sfc/services/flowclassifier/common/exceptions.py
new file mode 100644
index 0000000..9f186c0
--- /dev/null
+++ b/networking_sfc/services/flowclassifier/common/exceptions.py
@@ -0,0 +1,31 @@
+# Copyright 2015 Futurewei.  All rights reserved.
+#
+#    Licensed under the Apache License, Version 2.0 (the "License"); you may
+#    not use this file except in compliance with the License. You may obtain
+#    a copy of the License at
+#
+#         http://www.apache.org/licenses/LICENSE-2.0
+#
+#    Unless required by applicable law or agreed to in writing, software
+#    distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
+#    WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
+#    License for the specific language governing permissions and limitations
+#    under the License.
+"""Exceptions used by FlowClassifier plugin and drivers."""
+
+from neutron.common import exceptions
+
+
+class FlowClassifierDriverError(exceptions.NeutronException):
+    """flow classifier driver call failed."""
+    message = _("%(method)s failed.")
+
+
+class FlowClassifierException(exceptions.NeutronException):
+    """Base for flow classifier driver exceptions returned to user."""
+    pass
+
+
+class FlowClassifierBadRequest(exceptions.BadRequest, FlowClassifierException):
+    """Base for flow classifier driver bad request exceptions."""
+    pass
diff --git a/networking_sfc/services/flowclassifier/driver_manager.py b/networking_sfc/services/flowclassifier/driver_manager.py
new file mode 100644
index 0000000..1af4470
--- /dev/null
+++ b/networking_sfc/services/flowclassifier/driver_manager.py
@@ -0,0 +1,104 @@
+# Copyright 2015 Futurewei. All rights reserved.
+#
+#    Licensed under the Apache License, Version 2.0 (the "License"); you may
+#    not use this file except in compliance with the License. You may obtain
+#    a copy of the License at
+#
+#         http://www.apache.org/licenses/LICENSE-2.0
+#
+#    Unless required by applicable law or agreed to in writing, software
+#    distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
+#    WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
+#    License for the specific language governing permissions and limitations
+#    under the License.
+
+from oslo_config import cfg
+from oslo_log import log
+import stevedore
+
+from neutron.i18n import _LE
+from neutron.i18n import _LI
+
+from networking_sfc.services.flowclassifier.common import exceptions as fc_exc
+
+
+LOG = log.getLogger(__name__)
+cfg.CONF.import_opt('drivers',
+                    'networking_sfc.services.flowclassifier.common.config',
+                    group='flowclassifier')
+
+
+class FlowClassifierDriverManager(stevedore.named.NamedExtensionManager):
+    """Implementation of Flow Classifier drivers."""
+
+    def __init__(self):
+        # Registered flow classifier drivers, keyed by name.
+        self.drivers = {}
+        # Ordered list of flow classifier drivers, defining
+        # the order in which the drivers are called.
+        self.ordered_drivers = []
+        LOG.info(_LI("Configured Flow Classifier drivers: %s"),
+                 cfg.CONF.flowclassifier.drivers)
+        super(FlowClassifierDriverManager, self).__init__(
+            'networking_sfc.flowclassifier.drivers',
+            cfg.CONF.flowclassifier.drivers,
+            invoke_on_load=True,
+            name_order=True)
+        LOG.info(_LI("Loaded Flow Classifier drivers: %s"),
+                 self.names())
+        self._register_drivers()
+
+    def _register_drivers(self):
+        """Register all Flow Classifier drivers.
+
+        This method should only be called once in the
+        FlowClassifierDriverManager constructor.
+        """
+        for ext in self:
+            self.drivers[ext.name] = ext
+            self.ordered_drivers.append(ext)
+        LOG.info(_LI("Registered Flow Classifier drivers: %s"),
+                 [driver.name for driver in self.ordered_drivers])
+
+    def initialize(self):
+        # ServiceChain bulk operations requires each driver to support them
+        self.native_bulk_support = True
+        for driver in self.ordered_drivers:
+            LOG.info(_LI("Initializing Flow Classifier driver '%s'"),
+                     driver.name)
+            driver.obj.initialize()
+            self.native_bulk_support &= getattr(driver.obj,
+                                                'native_bulk_support', True)
+
+    def _call_drivers(self, method_name, context):
+        """Helper method for calling a method across all drivers.
+
+        :param method_name: name of the method to call
+        :param context: context parameter to pass to each method call
+        :param continue_on_failure: whether or not to continue to call
+        all SFC drivers once one has raised an exception
+        if any Flow Classifier driver call fails.
+        """
+        for driver in self.ordered_drivers:
+            try:
+                getattr(driver.obj, method_name)(context)
+            except Exception as e:
+                # This is an internal failure.
+                LOG.exception(e)
+                LOG.error(
+                    _LE("Flow Classifier driver '%(name)s'"
+                        "failed in %(method)s"),
+                    {'name': driver.name, 'method': method_name}
+                )
+                raise fc_exc.FlowClassifierDriverError(
+                    method=method_name
+                )
+
+    def create_flow_classifier(self, context):
+        self._call_drivers("create_flow_classifier", context)
+
+    def update_flow_classifier(self, context):
+        self._call_drivers("update_flow_classifier", context)
+
+    def delete_flow_classifier(self, context):
+        self._call_drivers("delete_flow_classifier", context)
diff --git a/networking_sfc/services/flowclassifier/drivers/__init__.py b/networking_sfc/services/flowclassifier/drivers/__init__.py
new file mode 100644
index 0000000..e69de29
--- /dev/null
+++ b/networking_sfc/services/flowclassifier/drivers/__init__.py
diff --git a/networking_sfc/services/flowclassifier/drivers/base.py b/networking_sfc/services/flowclassifier/drivers/base.py
new file mode 100644
index 0000000..eeaa60a
--- /dev/null
+++ b/networking_sfc/services/flowclassifier/drivers/base.py
@@ -0,0 +1,33 @@
+# Copyright 2015 Futurewei. All rights reserved.
+#
+#    Licensed under the Apache License, Version 2.0 (the "License"); you may
+#    not use this file except in compliance with the License. You may obtain
+#    a copy of the License at
+#
+#         http://www.apache.org/licenses/LICENSE-2.0
+#
+#    Unless required by applicable law or agreed to in writing, software
+#    distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
+#    WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
+#    License for the specific language governing permissions and limitations
+#    under the License.
+
+import abc
+import six
+
+
+@six.add_metaclass(abc.ABCMeta)
+class FlowClassifierDriverBase(object):
+    """Flow Classifier Driver Base Class."""
+
+    @abc.abstractmethod
+    def create_flow_classifier(self, context):
+        pass
+
+    @abc.abstractmethod
+    def delete_flow_classifier(self, context):
+        pass
+
+    @abc.abstractmethod
+    def update_flow_classifier(self, context):
+        pass
diff --git a/networking_sfc/services/flowclassifier/drivers/dummy/__init__.py b/networking_sfc/services/flowclassifier/drivers/dummy/__init__.py
new file mode 100644
index 0000000..e69de29
--- /dev/null
+++ b/networking_sfc/services/flowclassifier/drivers/dummy/__init__.py
diff --git a/networking_sfc/services/flowclassifier/drivers/dummy/dummy.py b/networking_sfc/services/flowclassifier/drivers/dummy/dummy.py
new file mode 100644
index 0000000..d032cc9
--- /dev/null
+++ b/networking_sfc/services/flowclassifier/drivers/dummy/dummy.py
@@ -0,0 +1,35 @@
+# Copyright 2015 Futurewei. All rights reserved.
+#
+#    Licensed under the Apache License, Version 2.0 (the "License"); you may
+#    not use this file except in compliance with the License. You may obtain
+#    a copy of the License at
+#
+#         http://www.apache.org/licenses/LICENSE-2.0
+#
+#    Unless required by applicable law or agreed to in writing, software
+#    distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
+#    WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
+#    License for the specific language governing permissions and limitations
+#    under the License.
+
+from oslo_log import helpers as log_helpers
+
+from networking_sfc.services.flowclassifier.drivers import base as fc_driver
+
+
+class DummyDriver(fc_driver.FlowClassifierDriverBase):
+    """Flow Classifier Driver Dummy Class."""
+    def initialize(self):
+        pass
+
+    @log_helpers.log_method_call
+    def create_flow_classifier(self, context):
+        pass
+
+    @log_helpers.log_method_call
+    def update_flow_classifier(self, context):
+        pass
+
+    @log_helpers.log_method_call
+    def delete_flow_classifier(self, context):
+        pass
diff --git a/networking_sfc/services/flowclassifier/plugin.py b/networking_sfc/services/flowclassifier/plugin.py
new file mode 100644
index 0000000..692e1d8
--- /dev/null
+++ b/networking_sfc/services/flowclassifier/plugin.py
@@ -0,0 +1,113 @@
+# Copyright 2015 Futurewei.  All rights reserved.
+#
+#    Licensed under the Apache License, Version 2.0 (the "License"); you may
+#    not use this file except in compliance with the License. You may obtain
+#    a copy of the License at
+#
+#         http://www.apache.org/licenses/LICENSE-2.0
+#
+#    Unless required by applicable law or agreed to in writing, software
+#    distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
+#    WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
+#    License for the specific language governing permissions and limitations
+#    under the License.
+
+from oslo_log import helpers as log_helpers
+from oslo_log import log as logging
+from oslo_utils import excutils
+
+from neutron.i18n import _LE
+from neutron import manager
+
+from networking_sfc.db import flowclassifier_db as fc_db
+from networking_sfc.extensions import flowclassifier as fc_ext
+from networking_sfc.services.flowclassifier.common import context as fc_ctx
+from networking_sfc.services.flowclassifier.common import exceptions as fc_exc
+from networking_sfc.services.flowclassifier import driver_manager as fc_driver
+
+
+LOG = logging.getLogger(__name__)
+
+
+class FlowClassifierPlugin(fc_db.FlowClassifierDbPlugin):
+
+    """Implementation of the Plugin."""
+    supported_extension_aliases = [fc_ext.FLOW_CLASSIFIER_EXT]
+    path_prefix = fc_ext.FLOW_CLASSIFIER_PREFIX
+
+    def __init__(self):
+        self.driver_manager = fc_driver.FlowClassifierDriverManager()
+        super(FlowClassifierPlugin, self).__init__()
+        self.driver_manager.initialize()
+
+    def _get_port(self, context, id):
+        port = super(FlowClassifierPlugin, self)._get_port(context, id)
+        core_plugin = manager.NeutronManager.get_plugin()
+        return core_plugin.get_port(context, port['id'])
+
+    def _get_fixed_ip_from_port(self, context, logical_port, ip_prefix):
+        if logical_port is not None:
+            port = self._get_port(context, logical_port)
+            if (
+                ip_prefix is None and
+                'fixed_ips' in port and
+                port['fixed_ips']
+            ):
+                for fixed_ip in port['fixed_ips']:
+                    ip_prefix = (
+                        '%s/32' % fixed_ip['ip_address']
+                    )
+                    break
+        return ip_prefix
+
+    @log_helpers.log_method_call
+    def create_flow_classifier(self, context, flow_classifier):
+        fc_db = super(FlowClassifierPlugin, self).create_flow_classifier(
+            context, flow_classifier)
+        fc_db_context = fc_ctx.FlowClassifierContext(self, context, fc_db)
+        try:
+            self.driver_manager.create_flow_classifier(fc_db_context)
+        except fc_exc.FlowClassifierDriverError as e:
+            LOG.exception(e)
+            with excutils.save_and_reraise_exception():
+                LOG.error(_LE("Create flow classifier failed, "
+                              "deleting flow_classifier '%s'"),
+                          fc_db['id'])
+                self.delete_flow_classifier(context, fc_db['id'])
+        return fc_db
+
+    @log_helpers.log_method_call
+    def update_flow_classifier(self, context, id, flow_classifier):
+        original_flowclassifier = self.get_flow_classifier(context, id)
+        updated_fc = super(FlowClassifierPlugin, self).update_flow_classifier(
+            context, id, flow_classifier)
+        fc_db_context = fc_ctx.FlowClassifierContext(
+            self, context, updated_fc,
+            original_flowclassifier=original_flowclassifier)
+
+        try:
+            self.driver_manager.update_flow_classifier(fc_db_context)
+        except fc_exc.FlowClassifierDriverError as e:
+            LOG.exception(e)
+            with excutils.save_and_reraise_exception():
+                LOG.error(_LE("Update flow classifier failed, "
+                              "flow_classifier '%s'"),
+                          updated_fc['id'])
+
+        return updated_fc
+
+    @log_helpers.log_method_call
+    def delete_flow_classifier(self, context, fc_id):
+        fc = self.get_flow_classifier(context, fc_id)
+        fc_context = fc_ctx.FlowClassifierContext(self, context, fc)
+        try:
+            self.driver_manager.delete_flow_classifier(fc_context)
+        except fc_exc.FlowClassfierDriverError as e:
+            LOG.exception(e)
+            with excutils.save_and_reraise_exception():
+                LOG.error(_LE("Delete port pair group failed, "
+                              "flow_classifier '%s'"),
+                          fc_id)
+
+        super(FlowClassifierPlugin, self).delete_flow_classifier(
+            context, fc_id)