QoS implementation(Part1: Qos Plugin)

1. What is the problem?
Tricircle now don't support QoS service, we should add QoS
servicesupporting.

2. What is the solution to the problem?
We implement Tricircle QoS service by inherit neutron QoS plugin.
For QoS automation deployment in local, we should implement QoS xjob
jobs.

Change-Id: Ifbf453b57f7e18919318e1dae2ca2849e149a29b
Signed-off-by: xiaohan zhang <zhangxiaohan@szzt.com.cn>

devstack/plugin.sh

@@ -291,6 +291,11 @@ function start_central_neutron_server {
         iniset $NEUTRON_CONF.$server_index sfc drivers tricircle_sfc
         iniset $NEUTRON_CONF.$server_index flowclassifier drivers tricircle_fc
     fi
+
+    if [ "$TRICIRCLE_ENABLE_QOS" == "True" ]; then
+        service_plugins+=",tricircle.network.central_qos_plugin.TricircleQosPlugin"
+    fi
+
     if [ -n service_plugins ]; then
         service_plugins=$(echo $service_plugins| sed 's/^,//')
         iniset $NEUTRON_CONF.$server_index DEFAULT service_plugins "$service_plugins"
@@ -324,6 +329,17 @@ function start_central_neutron_server {
     iniset $NEUTRON_CONF.$server_index tricircle enable_api_gateway False
     # default value of bridge_network_type is vxlan
 
+    if [ "$TRICIRCLE_ENABLE_QOS" == "True" ]; then
+        local p_exist=$(grep "^extension_drivers" /$Q_PLUGIN_CONF_FILE)
+        if [[ $p_exist != "" ]];then
+            if ! [[ $(echo $p_exist | grep "qos") ]];then
+                sed -i "s/$p_exist/$p_exist,qos/g" /$Q_PLUGIN_CONF_FILE
+            fi
+        else
+            sed -i "s/^\[ml2\]/\[ml2\]\nextension_drivers = qos/g" /$Q_PLUGIN_CONF_FILE
+        fi
+    fi
+
     recreate_database $Q_DB_NAME$server_index
     $NEUTRON_BIN_DIR/neutron-db-manage --config-file $NEUTRON_CONF.$server_index --config-file /$Q_PLUGIN_CONF_FILE upgrade head
 

devstack/settings

@@ -13,6 +13,7 @@ TRICIRCLE_DEPLOY_WITH_CELL=${TRICIRCLE_DEPLOY_WITH_CELL:-False}
 # extensions working with tricircle
 TRICIRCLE_ENABLE_TRUNK=${TRICIRCLE_ENABLE_TRUNK:-False}
 TRICIRCLE_ENABLE_SFC=${TRICIRCLE_ENABLE_SFC:-False}
+TRICIRCLE_ENABLE_QOS=${TRICIRCLE_ENABLE_QOS:-False}
 
 # these default settings are used for devstack based gate/check jobs
 TRICIRCLE_DEFAULT_VLAN_BRIDGE=${TRICIRCLE_DEFAULT_VLAN_BRIDGE:-br-vlan}

releasenotes/notes/add-qos-policy-rule-f8f1529d7ad5d888.yaml

@@ -0,0 +1,5 @@
+---
+features:
+  - Provide central Neutron QoS plugin and implement QoS driver. Support QoS
+    policy creation, update and delete, QoS policy binding with network or
+    port.

setup.cfg

@@ -64,6 +64,8 @@ tricircle.network.type_drivers =
     vlan = tricircle.network.drivers.type_vlan:VLANTypeDriver
     vxlan = tricircle.network.drivers.type_vxlan:VxLANTypeDriver
     flat = tricircle.network.drivers.type_flat:FlatTypeDriver
+tricircle.network.extension_drivers =
+    qos = neutron.plugins.ml2.extensions.qos:QosExtensionDriver
 networking_sfc.flowclassifier.drivers =
     tricircle_fc = tricircle.network.central_fc_driver:TricircleFcDriver
 networking_sfc.sfc.drivers =

tricircle/common/client.py

@@ -209,8 +209,14 @@ class Client(object):
                     if (handle_obj.support_resource[resource] & index) == 0:
                         continue
                     self.operation_resources_map[operation].add(resource)
-                    setattr(self, '%s_%ss' % (operation, resource),
-                            functools.partial(
+                    if resource == 'qos_policy':
+                        setattr(self, '%s_qos_policies' % operation,
+                                functools.partial(
+                                    getattr(self, '%s_resources' % operation),
+                                    resource))
+                    else:
+                        setattr(self, '%s_%ss' % (operation, resource),
+                                functools.partial(
                                 getattr(self, '%s_resources' % operation),
                                 resource))
 

tricircle/common/constants.py

@@ -36,6 +36,7 @@ RT_ROUTER = 'router'
 RT_NS_ROUTER = 'ns_router'
 RT_SG = 'security_group'
 RT_FIP = 'floatingip'
+RT_QOS = 'qos_policy'
 
 REAL_SHADOW_TYPE_MAP = {
     RT_NETWORK: RT_SD_NETWORK,
@@ -48,7 +49,7 @@ REAL_SHADOW_TYPE_MAP = {
 def is_valid_resource_type(resource_type):
     resource_type_table = [RT_NETWORK, RT_SUBNET, RT_PORT, RT_ROUTER, RT_SG,
                            RT_TRUNK, RT_PORT_PAIR, RT_PORT_PAIR_GROUP,
-                           RT_FLOW_CLASSIFIER, RT_PORT_CHAIN]
+                           RT_FLOW_CLASSIFIER, RT_PORT_CHAIN, RT_QOS]
     return resource_type in resource_type_table
 
 
@@ -113,6 +114,10 @@ JT_SHADOW_PORT_SETUP = 'shadow_port_setup'
 JT_TRUNK_SYNC = 'trunk_sync'
 JT_SFC_SYNC = 'sfc_sync'
 JT_RESOURCE_RECYCLE = 'resource_recycle'
+JT_QOS_CREATE = 'qos_create'
+JT_QOS_UPDATE = 'qos_update'
+JT_QOS_DELETE = 'qos_delete'
+JT_SYNC_QOS_RULE = 'sync_qos_rule'
 
 # network type
 NT_LOCAL = 'local'
@@ -148,7 +153,17 @@ job_resource_map = {
     JT_SFC_SYNC: [(None, "pod_id"),
                   (RT_PORT_CHAIN, "portchain_id"),
                   (RT_NETWORK, "network_id")],
-    JT_RESOURCE_RECYCLE: [(None, "project_id")]
+    JT_RESOURCE_RECYCLE: [(None, "project_id")],
+    JT_QOS_CREATE: [(None, "pod_id"),
+                    (RT_QOS, "policy_id"),
+                    (None, "res_type"),
+                    (None, "res_id")],
+    JT_QOS_UPDATE: [(None, "pod_id"),
+                    (RT_QOS, "policy_id")],
+    JT_QOS_DELETE: [(None, "pod_id"),
+                    (RT_QOS, "policy_id")],
+    JT_SYNC_QOS_RULE: [(None, "rule_id"),
+                       (RT_QOS, "policy_id")]
 }
 
 # map raw job status to more human readable job status
@@ -173,7 +188,11 @@ job_handles = {
     JT_TRUNK_SYNC: "sync_trunk",
     JT_SHADOW_PORT_SETUP: "setup_shadow_ports",
     JT_SFC_SYNC: "sync_service_function_chain",
-    JT_RESOURCE_RECYCLE: "recycle_resources"
+    JT_RESOURCE_RECYCLE: "recycle_resources",
+    JT_QOS_CREATE: "create_qos_policy",
+    JT_QOS_UPDATE: "update_qos_policy",
+    JT_QOS_DELETE: "delete_qos_policy",
+    JT_SYNC_QOS_RULE: "sync_qos_policy_rules"
 }
 
 # map job type to its primary resource and then we only validate the project_id
@@ -189,7 +208,11 @@ job_primary_resource_map = {
     JT_TRUNK_SYNC: (RT_TRUNK, "trunk_id"),
     JT_SHADOW_PORT_SETUP: (RT_NETWORK, "network_id"),
     JT_SFC_SYNC: (RT_PORT_CHAIN, "portchain_id"),
-    JT_RESOURCE_RECYCLE: (None, "project_id")
+    JT_RESOURCE_RECYCLE: (None, "project_id"),
+    JT_QOS_CREATE: (RT_QOS, "policy_id"),
+    JT_QOS_UPDATE: (RT_QOS, "policy_id"),
+    JT_QOS_DELETE: (RT_QOS, "policy_id"),
+    JT_SYNC_QOS_RULE: (RT_QOS, "policy_id")
 }
 
 # admin API request path

tricircle/common/resource_handle.py

@@ -35,6 +35,9 @@ LIST, CREATE, DELETE, GET, ACTION, UPDATE = 1, 2, 4, 8, 16, 32
 operation_index_map = {'list': LIST, 'create': CREATE, 'delete': DELETE,
                        'get': GET, 'action': ACTION, 'update': UPDATE}
 
+policy_rules = ('bandwidth_limit_rule', 'dscp_marking_rule',
+                'minimum_bandwidth_rule')
+
 LOG = logging.getLogger(__name__)
 
 
@@ -98,7 +101,11 @@ class NeutronResourceHandle(ResourceHandle):
         'port_chain': LIST | CREATE | DELETE | GET | UPDATE,
         'port_pair_group': LIST | CREATE | DELETE | GET | UPDATE,
         'port_pair': LIST | CREATE | DELETE | GET | UPDATE,
-        'flow_classifier': LIST | CREATE | DELETE | GET | UPDATE}
+        'flow_classifier': LIST | CREATE | DELETE | GET | UPDATE,
+        'qos_policy': LIST | CREATE | DELETE | GET | UPDATE,
+        'bandwidth_limit_rule': LIST | CREATE | DELETE | GET | UPDATE,
+        'dscp_marking_rule': LIST | CREATE | DELETE | GET | UPDATE,
+        'minimum_bandwidth_rule': LIST | CREATE | DELETE | GET | UPDATE}
 
     def _get_client(self, cxt):
         token = cxt.auth_token
@@ -113,7 +120,10 @@ class NeutronResourceHandle(ResourceHandle):
     def handle_list(self, cxt, resource, filters):
         try:
             client = self._get_client(cxt)
-            collection = '%ss' % resource
+            if resource == 'qos_policy':
+                collection = 'qos_policies'
+            else:
+                collection = '%ss' % resource
             search_opts = _transform_filters(filters)
             return [res for res in getattr(
                 client, 'list_%s' % collection)(**search_opts)[collection]]
@@ -126,6 +136,10 @@ class NeutronResourceHandle(ResourceHandle):
             client = self._get_client(cxt)
             ret = getattr(client, 'create_%s' % resource)(
                 *args, **kwargs)
+
+            if resource == 'qos_policy':
+                return ret['policy']
+
             if resource in ret:
                 return ret[resource]
             else:
@@ -137,6 +151,9 @@ class NeutronResourceHandle(ResourceHandle):
     def handle_update(self, cxt, resource, *args, **kwargs):
         try:
             client = self._get_client(cxt)
+            if resource == 'qos_policy':
+                return getattr(client, 'update_%s' % resource)(
+                    *args, **kwargs)['policy']
             return getattr(client, 'update_%s' % resource)(
                 *args, **kwargs)[resource]
         except q_exceptions.ConnectionFailed:
@@ -146,6 +163,13 @@ class NeutronResourceHandle(ResourceHandle):
     def handle_get(self, cxt, resource, resource_id):
         try:
             client = self._get_client(cxt)
+            if resource == 'qos_policy':
+                return getattr(client, 'show_%s' % resource)(
+                    resource_id)['policy']
+            if resource in policy_rules:
+                (rule_id, policy_id) = resource_id.split('#')
+                return getattr(client, 'show_%s' % resource)(
+                    rule_id, policy_id)[resource]
             return getattr(client, 'show_%s' % resource)(resource_id)[resource]
         except q_exceptions.ConnectionFailed:
             raise exceptions.EndpointNotAvailable(
@@ -157,6 +181,10 @@ class NeutronResourceHandle(ResourceHandle):
     def handle_delete(self, cxt, resource, resource_id):
         try:
             client = self._get_client(cxt)
+            if resource in policy_rules:
+                (rule_id, policy_id) = resource_id.split('#')
+                return getattr(client, 'delete_%s' % resource)(
+                    rule_id, policy_id)
             return getattr(client, 'delete_%s' % resource)(resource_id)
         except q_exceptions.ConnectionFailed:
             raise exceptions.EndpointNotAvailable(

tricircle/common/xrpcapi.py

@@ -140,3 +140,26 @@ class XJobAPI(object):
             ctxt, project_id,
             constants.job_handles[constants.JT_RESOURCE_RECYCLE],
             constants.JT_RESOURCE_RECYCLE, project_id)
+
+    def create_qos_policy(self, ctxt, project_id, policy_id, pod_id,
+                          res_type, res_id=None):
+        self.invoke_method(
+            ctxt, project_id, constants.job_handles[constants.JT_QOS_CREATE],
+            constants.JT_QOS_CREATE, '%s#%s#%s#%s' % (pod_id, policy_id,
+                                                      res_type, res_id))
+
+    def update_qos_policy(self, ctxt, project_id, policy_id, pod_id):
+        self.invoke_method(
+            ctxt, project_id, constants.job_handles[constants.JT_QOS_UPDATE],
+            constants.JT_QOS_UPDATE, '%s#%s' % (pod_id, policy_id))
+
+    def delete_qos_policy(self, ctxt, project_id, policy_id, pod_id):
+        self.invoke_method(
+            ctxt, project_id, constants.job_handles[constants.JT_QOS_DELETE],
+            constants.JT_QOS_DELETE, '%s#%s' % (pod_id, policy_id))
+
+    def sync_qos_policy_rules(self, ctxt, project_id, policy_id):
+        self.invoke_method(
+            ctxt, project_id,
+            constants.job_handles[constants.JT_SYNC_QOS_RULE],
+            constants.JT_SYNC_QOS_RULE, policy_id)

tricircle/network/central_plugin.py

@@ -28,7 +28,9 @@ from neutron.callbacks import exceptions as callbacks_exc
 from neutron.callbacks import registry
 from neutron.callbacks import resources
 import neutron.common.exceptions as ml2_exceptions
+from neutron.conf.plugins.ml2 import config  # noqa
 from neutron.db import _resource_extend as resource_extend
+from neutron.db import agents_db
 from neutron.db import api as q_db_api
 from neutron.db.availability_zone import router as router_az
 from neutron.db import db_base_plugin_v2
@@ -44,6 +46,8 @@ from neutron.db import l3_hamode_db  # noqa
 from neutron.db import models_v2
 from neutron.db import portbindings_db
 from neutron.extensions import providernet as provider
+from neutron.objects.qos import policy as policy_object
+from neutron.plugins.ml2 import managers as n_managers
 from neutron_lib.api.definitions import availability_zone as az_def
 from neutron_lib.api.definitions import external_net
 from neutron_lib.api.definitions import l3 as l3_apidef
@@ -72,6 +76,7 @@ from tricircle.db import models
 import tricircle.network.exceptions as t_network_exc
 from tricircle.network import helper
 from tricircle.network import managers
+from tricircle.network import qos_driver
 from tricircle.network import security_groups
 
 
@@ -80,6 +85,11 @@ tricircle_opts = [
                 default=['vxlan,local'],
                 help=_('List of network type driver entry points to be loaded '
                        'from the tricircle.network.type_drivers namespace.')),
+    cfg.ListOpt('extension_drivers',
+                default=[],
+                help=_('List of network extension driver entry points to be '
+                       'loaded from the neutron.ml2.extension_drivers '
+                       'namespace.')),
     cfg.ListOpt('tenant_network_types',
                 default=['vxlan,local'],
                 help=_('Ordered list of network_types to allocate as tenant '
@@ -128,6 +138,7 @@ NON_VM_PORT_TYPES = [constants.DEVICE_OWNER_ROUTER_INTF,
 
 
 class TricirclePlugin(db_base_plugin_v2.NeutronDbPluginV2,
+                      agents_db.AgentDbMixin,
                       security_groups.TricircleSecurityGroupMixin,
                       external_net_db.External_net_db_mixin,
                       portbindings_db.PortBindingMixin,
@@ -165,12 +176,15 @@ class TricirclePlugin(db_base_plugin_v2.NeutronDbPluginV2,
     def __init__(self):
         super(TricirclePlugin, self).__init__()
         LOG.info("Starting Tricircle Neutron Plugin")
-        self.clients = {}
+        self.clients = {'top': t_client.Client()}
         self.xjob_handler = xrpcapi.XJobAPI()
         self._setup_rpc()
         self.type_manager = managers.TricircleTypeManager()
+        self.extension_manager = n_managers.ExtensionManager()
+        self.extension_manager.initialize()
         self.type_manager.initialize()
         self.helper = helper.NetworkHelper(self)
+        qos_driver.register()
 
     def _setup_rpc(self):
         self.endpoints = []
@@ -303,6 +317,8 @@ class TricirclePlugin(db_base_plugin_v2.NeutronDbPluginV2,
             net_db = self.create_network_db(context, network)
             res = self._make_network_dict(net_db, process_extensions=False,
                                           context=context)
+            self.extension_manager.process_create_network(context, net_data,
+                                                          res)
             self._process_l3_create(context, res, net_data)
             net_data['id'] = res['id']
             self.type_manager.create_network_segments(context, net_data,
@@ -392,19 +408,55 @@ class TricirclePlugin(db_base_plugin_v2.NeutronDbPluginV2,
         self._raise_if_updates_external_attribute(net_data)
 
         with context.session.begin():
-            net = super(TricirclePlugin, self).update_network(context,
-                                                              network_id,
-                                                              network)
+            original_network = super(TricirclePlugin, self).get_network(
+                context, network_id)
+            policy = policy_object.QosPolicy.get_network_policy(
+                context, network_id)
+            if policy:
+                original_network['qos_policy_id'] = policy['id']
+            else:
+                original_network['qos_policy_id'] = None
+
+            updated_network = super(
+                TricirclePlugin, self).update_network(
+                context, network_id, network)
+
+            self.extension_manager.process_update_network(
+                context, net_data, updated_network)
+
+            self.type_manager.extend_network_dict_provider(context,
+                                                           updated_network)
+
+            updated_network = self.get_network(context, network_id)
+
+            if net_data.get('qos_policy_id', None):
+                updated_network['qos_policy_id'] = net_data['qos_policy_id']
+
+            if not updated_network.get('qos_policy_id', None):
+                updated_network['qos_policy_id'] = None
+
+            need_network_update_notify = (
+                'qos_policy_id' in net_data and
+                original_network['qos_policy_id'] !=
+                updated_network['qos_policy_id'])
+
             t_ctx = t_context.get_context_from_neutron_context(context)
             mappings = db_api.get_bottom_mappings_by_top_id(
                 t_ctx, network_id, t_constants.RT_NETWORK)
             if mappings:
                 self.xjob_handler.update_network(
-                    t_ctx, net['tenant_id'], network_id,
+                    t_ctx, updated_network['tenant_id'], network_id,
                     t_constants.POD_NOT_SPECIFIED)
 
-            self.type_manager.extend_network_dict_provider(context, net)
-            return net
+            if need_network_update_notify and \
+                    updated_network['qos_policy_id'] and mappings:
+                t_policy_id = updated_network['qos_policy_id']
+                self.xjob_handler.create_qos_policy(
+                    t_ctx, updated_network['tenant_id'], t_policy_id,
+                    t_constants.POD_NOT_SPECIFIED, t_constants.RT_NETWORK,
+                    updated_network['id'])
+
+            return updated_network
 
     def _convert_az2region_for_nets(self, context, nets):
         for net in nets:
@@ -419,6 +471,11 @@ class TricirclePlugin(db_base_plugin_v2.NeutronDbPluginV2,
     def _convert_az2region(self, t_ctx, az_hints):
         return self.helper.convert_az2region(t_ctx, az_hints)
 
+    def _get_network_qos_info(self, context, net_id):
+        policy = policy_object.QosPolicy.get_network_policy(
+            context.elevated(), net_id)
+        return policy['id'] if policy else None
+
     def get_network(self, context, network_id, fields=None):
         net = super(TricirclePlugin, self).get_network(context, network_id,
                                                        fields)
@@ -427,6 +484,9 @@ class TricirclePlugin(db_base_plugin_v2.NeutronDbPluginV2,
 
         self._convert_az2region_for_net(context, net)
 
+        net['qos_policy_id'] = \
+            self._get_network_qos_info(context.elevated(), net['id'])
+
         return net
 
     def get_networks(self, context, filters=None, fields=None,
@@ -438,6 +498,11 @@ class TricirclePlugin(db_base_plugin_v2.NeutronDbPluginV2,
             self.type_manager.extend_networks_dict_provider(context, nets)
 
         self._convert_az2region_for_nets(context, nets)
+
+        for net in nets:
+            net['qos_policy_id'] = \
+                self._get_network_qos_info(context.elevated(), net['id'])
+
         return nets
 
     def create_subnet(self, context, subnet):
@@ -561,6 +626,7 @@ class TricirclePlugin(db_base_plugin_v2.NeutronDbPluginV2,
         self._ensure_default_security_group_on_port(context, port)
         sgids = self._get_security_groups_on_port(context, port)
         result = self._make_port_dict(db_port)
+        self.extension_manager.process_create_port(context, port_body, result)
         self._process_port_create_security_group(context, result, sgids)
         return result
 
@@ -671,7 +737,7 @@ class TricirclePlugin(db_base_plugin_v2.NeutronDbPluginV2,
     def update_port(self, context, port_id, port):
         t_ctx = t_context.get_context_from_neutron_context(context)
         top_port = super(TricirclePlugin, self).get_port(context, port_id)
-
+        updated_port = None
         # be careful that l3_db will call update_port to update device_id of
         # router interface, we cannot directly update bottom port in this case,
         # otherwise we will fail when attaching bottom port to bottom router
@@ -679,15 +745,17 @@ class TricirclePlugin(db_base_plugin_v2.NeutronDbPluginV2,
         if t_constants.PROFILE_REGION in port['port'].get(
                 'binding:profile', {}):
             # this update request comes from local Neutron
-            res = super(TricirclePlugin, self).update_port(context, port_id,
-                                                           port)
+            updated_port = super(TricirclePlugin, self).update_port(context,
+                                                                    port_id,
+                                                                    port)
+
             profile_dict = port['port']['binding:profile']
             region_name = profile_dict[t_constants.PROFILE_REGION]
             device_name = profile_dict[t_constants.PROFILE_DEVICE]
             t_ctx = t_context.get_context_from_neutron_context(context)
             pod = db_api.get_pod_by_name(t_ctx, region_name)
 
-            net = self.get_network(context, res['network_id'])
+            net = self.get_network(context, updated_port['network_id'])
             is_vxlan_network = (
                 net[provider_net.NETWORK_TYPE] == t_constants.NT_VxLAN)
             if is_vxlan_network:
@@ -700,20 +768,41 @@ class TricirclePlugin(db_base_plugin_v2.NeutronDbPluginV2,
                 # gateway port, but we only need to create resource routing
                 # entries, trigger xjob and configure security group rules for
                 # instance port
-                self._create_mapping_for_vm_port(t_ctx, res, pod)
+                self._create_mapping_for_vm_port(t_ctx, updated_port, pod)
                 self._process_trunk_port(context, t_ctx,
-                                         res, pod, profile_dict)
+                                         updated_port, pod, profile_dict)
                 # only trigger setup_bottom_router job
-                self._trigger_router_xjob_for_vm_port(context, res, pod)
+                self._trigger_router_xjob_for_vm_port(context, updated_port,
+                                                      pod)
                 self.xjob_handler.configure_security_group_rules(
-                    t_ctx, res['tenant_id'])
+                    t_ctx, updated_port['tenant_id'])
 
             if is_vxlan_network and (
                     cfg.CONF.client.cross_pod_vxlan_mode in (
                         t_constants.NM_P2P, t_constants.NM_L2GW)):
-                self.xjob_handler.setup_shadow_ports(t_ctx, res['tenant_id'],
-                                                     pod['pod_id'],
-                                                     res['network_id'])
+                self.xjob_handler.setup_shadow_ports(
+                    t_ctx, updated_port['tenant_id'], pod['pod_id'],
+                    updated_port['network_id'])
+
+            network_binding_policy = \
+                policy_object.QosPolicy.get_network_policy(
+                    context, updated_port['network_id'])
+
+            port_binding_policy = policy_object.QosPolicy.get_port_policy(
+                context, port_id)
+
+            if network_binding_policy:
+                t_policy_id = network_binding_policy['id']
+                self.xjob_handler.create_qos_policy(
+                    t_ctx, t_ctx.project_id, t_policy_id, pod['pod_id'],
+                    t_constants.RT_NETWORK, updated_port['network_id'])
+
+            if port_binding_policy:
+                t_policy_id = port_binding_policy['id']
+                self.xjob_handler.create_qos_policy(
+                    t_ctx, t_ctx.project_id, t_policy_id, pod['pod_id'],
+                    t_constants.RT_PORT, port_id)
+
         # for vm port or port with empty device_owner, update top port and
         # bottom port
         elif top_port.get('device_owner') not in NON_VM_PORT_TYPES:
@@ -722,6 +811,9 @@ class TricirclePlugin(db_base_plugin_v2.NeutronDbPluginV2,
             request_body = port[attributes.PORT]
             if mappings:
                 with context.session.begin():
+                    original_qos_policy_id = \
+                        self._get_port_qos_info(context, port_id)
+
                     b_pod, b_port_id = mappings[0]
                     b_region_name = b_pod['region_name']
                     b_client = self._get_client(region_name=b_region_name)
@@ -733,36 +825,58 @@ class TricirclePlugin(db_base_plugin_v2.NeutronDbPluginV2,
                         self._handle_bottom_security_group(
                             t_ctx, request_body['security_groups'], b_pod)
 
-                    res = super(TricirclePlugin, self).update_port(
+                    updated_port = super(TricirclePlugin, self).update_port(
                         context, port_id, port)
+                    self.extension_manager.process_update_port(
+                        context, request_body, updated_port)
+                    updated_port = \
+                        super(TricirclePlugin, self).get_port(context, port_id)
                     # name is not allowed to be updated, because it is used by
                     # lock_handle to retrieve bottom/local resources that have
                     # been created but not registered in the resource routing
                     # table
                     request_body.pop('name', None)
 
-                    try:
-                        b_client.update_ports(t_ctx, b_port_id, port)
-                    except q_cli_exceptions.NotFound:
-                        LOG.error(
-                            ('port: %(port_id)s not found, '
-                             'region name: %(name)s'),
-                            {'port_id': b_port_id, 'name': b_region_name})
+                    request_body_policy_id = \
+                        request_body.get('qos_policy_id', None)
+                    if request_body_policy_id:
+                            request_body.pop('qos_policy_id')
+
+                    if request_body:
+                        try:
+                            b_client.update_ports(t_ctx, b_port_id, port)
+                        except q_cli_exceptions.NotFound:
+                            LOG.error(
+                                ('port: %(port_id)s not found, '
+                                 'region name: %(name)s'),
+                                {'port_id': b_port_id, 'name': b_region_name})
 
                     if request_body.get('security_groups', None):
                         self.xjob_handler.configure_security_group_rules(
-                            t_ctx, res['tenant_id'])
+                            t_ctx, updated_port['tenant_id'])
+
+                    updated_port['qos_policy_id'] = request_body_policy_id
+                    if request_body_policy_id and \
+                        original_qos_policy_id != \
+                            request_body_policy_id:
+                        t_policy_id = updated_port['qos_policy_id']
+                        self.xjob_handler.create_qos_policy(
+                            t_ctx, t_ctx.project_id,
+                            t_policy_id, b_pod['pod_id'],
+                            t_constants.RT_PORT, b_port_id)
             else:
                 self._filter_unsupported_attrs(request_body)
-                res = super(TricirclePlugin, self).update_port(
+                updated_port = super(TricirclePlugin, self).update_port(
                     context, port_id, port)
+                self.extension_manager.process_update_port(
+                    context, request_body, updated_port)
         else:
             # for router interface, router gw, dhcp port, not directly
             # update bottom port
-            res = super(TricirclePlugin, self).update_port(
+            updated_port = super(TricirclePlugin, self).update_port(
                 context, port_id, port)
         self._log_update_port_sensitive_attrs(port_id, port)
-        return res
+        return updated_port
 
     def _pre_delete_port(self, context, port_id, port_check):
         """Do some preliminary operations before deleting the port."""
@@ -816,6 +930,10 @@ class TricirclePlugin(db_base_plugin_v2.NeutronDbPluginV2,
                                                 'value': port_id}])
         super(TricirclePlugin, self).delete_port(context, port_id)
 
+    def _get_port_qos_info(self, context, port_id):
+        policy = policy_object.QosPolicy.get_port_policy(context, port_id)
+        return policy['id'] if policy else None
+
     def get_port(self, context, port_id, fields=None):
         t_ctx = t_context.get_context_from_neutron_context(context)
         mappings = db_api.get_bottom_mappings_by_top_id(
@@ -830,28 +948,30 @@ class TricirclePlugin(db_base_plugin_v2.NeutronDbPluginV2,
             if fields:
                 port = dict(
                     [(k, v) for k, v in six.iteritems(port) if k in fields])
-            if 'network_id' not in port and 'fixed_ips' not in port:
-                return port
-
-            bottom_top_map = {}
-            with t_ctx.session.begin():
-                for resource in (t_constants.RT_SUBNET, t_constants.RT_NETWORK,
-                                 t_constants.RT_ROUTER):
-                    route_filters = [{'key': 'resource_type',
-                                      'comparator': 'eq',
-                                      'value': resource}]
-                    routes = core.query_resource(
-                        t_ctx, models.ResourceRouting, route_filters, [])
-                    for route in routes:
-                        if route['bottom_id']:
-                            bottom_top_map[
-                                route['bottom_id']] = route['top_id']
-            self._map_port_from_bottom_to_top(port, bottom_top_map)
-            return port
+            if 'network_id' in port or 'fixed_ips' in port:
+                bottom_top_map = {}
+                with t_ctx.session.begin():
+                    for resource in (t_constants.RT_SUBNET,
+                                     t_constants.RT_NETWORK,
+                                     t_constants.RT_ROUTER):
+                        route_filters = [{'key': 'resource_type',
+                                          'comparator': 'eq',
+                                          'value': resource}]
+                        routes = core.query_resource(
+                            t_ctx, models.ResourceRouting, route_filters, [])
+                        for route in routes:
+                            if route['bottom_id']:
+                                bottom_top_map[
+                                    route['bottom_id']] = route['top_id']
+                self._map_port_from_bottom_to_top(port, bottom_top_map)
         else:
-            return super(TricirclePlugin, self).get_port(context,
+            port = super(TricirclePlugin, self).get_port(context,
                                                          port_id, fields)
 
+        port['qos_policy_id'] = \
+            self._get_port_qos_info(context, port_id)
+        return port
+
     @staticmethod
     def _apply_ports_filters(query, model, filters):
         if not filters:
@@ -1051,8 +1171,13 @@ class TricirclePlugin(db_base_plugin_v2.NeutronDbPluginV2,
         if not filters or 'id' not in filters:
             # if filter is empty or "id" is not in the filter, no special
             # handle is required
-            return self._get_ports(context, filters, fields, sorts, limit,
-                                   marker, page_reverse)
+            ports = self._get_ports(context, filters, fields, sorts, limit,
+                                    marker, page_reverse)
+            for port in ports:
+                port['qos_policy_id'] = \
+                    self._get_port_qos_info(context, port['id'])
+
+            return ports
         if len(filters) == 1:
             # only "id" is in the filter, we use get_port to get all the ports
             ports = []
@@ -1068,9 +1193,14 @@ class TricirclePlugin(db_base_plugin_v2.NeutronDbPluginV2,
             id_filters = filters.pop('id')
             ports = self._get_ports(context, filters, None, sorts, limit,
                                     marker, page_reverse)
-            return [super(TricirclePlugin,
-                          self)._fields(
+            ports = [super(TricirclePlugin,
+                           self)._fields(
                 p, fields) for p in ports if p['id'] in id_filters]
+            for port in ports:
+                port['qos_policy_id'] = \
+                    self._get_port_qos_info(context, port['id'])
+
+            return ports
 
     def _get_ports(self, context, filters=None, fields=None, sorts=None,
                    limit=None, marker=None, page_reverse=False):

tricircle/network/central_qos_plugin.py

@@ -0,0 +1,83 @@
+# Copyright 2017 Hunan University.
+# 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 neutron.objects import ports as ports_object
+from neutron.services.qos import qos_plugin
+from neutron_lib.api.definitions import portbindings
+from oslo_log import log
+
+import tricircle.common.client as t_client
+import tricircle.common.constants as t_constants
+import tricircle.common.context as t_context
+import tricircle.db.api as db_api
+
+LOG = log.getLogger(__name__)
+
+
+class TricircleQosPlugin(qos_plugin.QoSPlugin):
+
+    def __init__(self):
+        super(TricircleQosPlugin, self).__init__()
+        self.clients = {'top': t_client.Client()}
+
+    def _get_client(self, region_name):
+        if region_name not in self.clients:
+            self.clients[region_name] = t_client.Client(region_name)
+        return self.clients[region_name]
+
+    def _get_ports_with_policy(self, context, policy):
+        networks_ids = policy.get_bound_networks()
+
+        ports_with_net_policy = ports_object.Port.get_objects(
+            context, network_id=networks_ids)
+
+        # Filter only these ports which don't have overwritten policy
+        ports_with_net_policy = [
+            port for port in ports_with_net_policy if
+            port.qos_policy_id is None
+        ]
+
+        ports_ids = policy.get_bound_ports()
+        ports_with_policy = ports_object.Port.get_objects(
+            context, id=ports_ids)
+        t_ports = list(set(ports_with_policy + ports_with_net_policy))
+
+        t_ctx = t_context.get_context_from_neutron_context(context)
+        for t_port in t_ports:
+            mappings = db_api.get_bottom_mappings_by_top_id(
+                t_ctx, t_port.id, t_constants.RT_PORT)
+            if mappings:
+                b_pod, b_port_id = mappings[0]
+                b_region_name = b_pod['region_name']
+                b_client = self._get_client(region_name=b_region_name)
+                b_port = b_client.get_ports(t_ctx, b_port_id)
+                new_binding = ports_object.PortBinding(
+                    port_id=t_port.id,
+                    vif_type=b_port.get('binding:vif_type',
+                                        portbindings.VIF_TYPE_UNBOUND),
+                    vnic_type=b_port.get('binding:vnic_type',
+                                         portbindings.VNIC_NORMAL)
+                )
+                t_port.binding = new_binding
+            else:
+                new_binding = ports_object.PortBinding(
+                    port_id=t_port.id,
+                    vif_type=portbindings.VIF_TYPE_UNBOUND,
+                    vnic_type=portbindings.VNIC_NORMAL
+                )
+                t_port.binding = new_binding
+
+        return t_ports

tricircle/network/local_plugin.py

@@ -245,6 +245,9 @@ class TricirclePlugin(plugin.Ml2Plugin):
                                               net_body['name'])
             if net_id:
                 net_body['id'] = net_id
+
+        net_body.pop('qos_policy_id', None)
+
         b_network = self.core_plugin.create_network(context,
                                                     {'network': net_body})
         return b_network
@@ -349,6 +352,8 @@ class TricirclePlugin(plugin.Ml2Plugin):
                     continue
 
                 self._adapt_network_body(network)
+
+                network.pop('qos_policy_id', None)
                 b_network = self.core_plugin.create_network(
                     context, {'network': network})
                 subnet_ids = self._ensure_subnet(context, network)
@@ -391,6 +396,7 @@ class TricirclePlugin(plugin.Ml2Plugin):
         if not t_network:
             raise q_exceptions.NetworkNotFound(net_id=_id)
         self._adapt_network_body(t_network)
+        t_network.pop('qos_policy_id', None)
         b_network = self.core_plugin.create_network(context,
                                                     {'network': t_network})
         return t_network, b_network
@@ -594,6 +600,8 @@ class TricirclePlugin(plugin.Ml2Plugin):
 
         self._handle_security_group(t_ctx, context, t_port)
         self._create_shadow_agent(context, port_body)
+
+        t_port.pop('qos_policy_id', None)
         b_port = self.core_plugin.create_port(context, {'port': t_port})
         return b_port
 
@@ -779,6 +787,7 @@ class TricirclePlugin(plugin.Ml2Plugin):
             self._ensure_network_subnet(context, t_port)
             self._adapt_port_body_for_call(t_port)
             self._handle_security_group(t_ctx, context, t_port)
+            t_port.pop('qos_policy_id', None)
             b_port = self.core_plugin.create_port(context, {'port': t_port})
 
         self._ensure_trunk(context, t_ctx, _id)
@@ -822,6 +831,7 @@ class TricirclePlugin(plugin.Ml2Plugin):
             self._ensure_network_subnet(context, port)
             self._adapt_port_body_for_call(port)
             self._handle_security_group(t_ctx, context, port)
+            port.pop('qos_policy_id', None)
             b_port = self.core_plugin.create_port(context,
                                                   {'port': port})
             b_ports.append(self._fields(b_port, fields))

tricircle/network/qos_driver.py

@@ -0,0 +1,144 @@
+# Copyright 2017 Hunan University Co., Ltd.
+#
+# 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 neutron_lib.api.definitions import portbindings
+from neutron_lib import constants
+from neutron_lib.db import constants as db_constants
+from neutron_lib.services.qos import base
+from neutron_lib.services.qos import constants as qos_consts
+
+from oslo_log import log as logging
+
+from tricircle.common import constants as t_constants
+from tricircle.common import context
+from tricircle.common import xrpcapi
+from tricircle.db import api as db_api
+
+LOG = logging.getLogger(__name__)
+
+DRIVER = None
+
+SUPPORTED_RULES = {
+    qos_consts.RULE_TYPE_BANDWIDTH_LIMIT: {
+        qos_consts.MAX_KBPS: {
+            'type:range': [0, db_constants.DB_INTEGER_MAX_VALUE]},
+        qos_consts.MAX_BURST: {
+            'type:range': [0, db_constants.DB_INTEGER_MAX_VALUE]},
+        qos_consts.DIRECTION: {
+            'type:values': constants.VALID_DIRECTIONS}
+    },
+    qos_consts.RULE_TYPE_DSCP_MARKING: {
+        qos_consts.DSCP_MARK: {'type:values': constants.VALID_DSCP_MARKS}
+    },
+    qos_consts.RULE_TYPE_MINIMUM_BANDWIDTH: {
+        qos_consts.MIN_KBPS: {
+            'type:range': [0, db_constants.DB_INTEGER_MAX_VALUE]},
+        qos_consts.DIRECTION: {'type:values': [constants.EGRESS_DIRECTION]}
+    }
+}
+
+VIF_TYPES = [portbindings.VIF_TYPE_OVS,
+             portbindings.VIF_TYPE_VHOST_USER,
+             portbindings.VIF_TYPE_UNBOUND]
+
+
+class TricircleQoSDriver(base.DriverBase):
+    def __init__(self, name, vif_types, vnic_types,
+                 supported_rules,
+                 requires_rpc_notifications):
+        super(TricircleQoSDriver, self).__init__(name, vif_types, vnic_types,
+                                                 supported_rules,
+                                                 requires_rpc_notifications)
+        self.xjob_handler = xrpcapi.XJobAPI()
+
+    @staticmethod
+    def create():
+        return TricircleQoSDriver(
+            name='tricircle',
+            vif_types=VIF_TYPES,
+            vnic_types=portbindings.VNIC_TYPES,
+            supported_rules=SUPPORTED_RULES,
+            requires_rpc_notifications=False)
+
+    def create_policy(self, q_context, policy):
+        """Create policy invocation.
+
+        :param q_context: current running context information
+        :param policy: a QoSPolicy object being created, which will have no
+                      rules.
+        """
+        pass
+
+    def create_policy_precommit(self, q_context, policy):
+        """Create policy precommit.
+
+        :param q_context: current running context information
+        :param policy: a QoSPolicy object being created, which will have no
+                      rules.
+        """
+        pass
+
+    def update_policy(self, q_context, policy):
+        """Update policy invocation.
+
+        :param q_context: current running context information
+        :param policy: a QoSPolicy object being updated.
+        """
+        pass
+
+    def update_policy_precommit(self, q_context, policy):
+        """Update policy precommit.
+
+        :param q_context: current running context information
+        :param policy: a QoSPolicy object being updated.
+        """
+        t_context = context.get_context_from_neutron_context(q_context)
+        policy_id = policy['id']
+        mappings = db_api.get_bottom_mappings_by_top_id(
+            t_context, policy_id, t_constants.RT_QOS)
+
+        if mappings:
+            self.xjob_handler.update_qos_policy(
+                t_context, t_context.project_id, policy_id,
+                t_constants.POD_NOT_SPECIFIED)
+            self.xjob_handler.sync_qos_policy_rules(
+                t_context, t_context.project_id, policy_id)
+
+    def delete_policy(self, q_context, policy):
+        """Delete policy invocation.
+
+        :param q_context: current running context information
+        :param policy: a QoSPolicy object being deleted
+        """
+
+    def delete_policy_precommit(self, q_context, policy):
+        """Delete policy precommit.
+
+        :param q_context: current running context information
+        :param policy: a QoSPolicy object being deleted
+        """
+        t_context = context.get_context_from_neutron_context(q_context)
+        policy_id = policy['id']
+        self.xjob_handler.delete_qos_policy(
+            t_context, t_context.project_id, policy_id,
+            t_constants.POD_NOT_SPECIFIED)
+
+
+def register():
+    """Register the driver."""
+    global DRIVER
+    if not DRIVER:
+        DRIVER = TricircleQoSDriver.create()
+    LOG.debug('Tricircle QoS driver registered')

tricircle/tempestplugin/gate_hook.sh

@@ -48,12 +48,15 @@ function _setup_tricircle_multinode {
     export DEVSTACK_LOCAL_CONFIG+=$'\n'"TRICIRCLE_START_SERVICES=True"
     export DEVSTACK_LOCAL_CONFIG+=$'\n'"TRICIRCLE_ENABLE_TRUNK=True"
     export DEVSTACK_LOCAL_CONFIG+=$'\n'"TRICIRCLE_ENABLE_SFC=True"
+    export DEVSTACK_LOCAL_CONFIG+=$'\n'"TRICIRCLE_ENABLE_QOS=True"
     export DEVSTACK_LOCAL_CONFIG+=$'\n'"REGION_NAME=RegionOne"
     export DEVSTACK_LOCAL_CONFIG+=$'\n'"HOST_IP=$PRIMARY_NODE_IP"
 
     ML2_CONFIG=$'\n'"ML2_L3_PLUGIN=tricircle.network.local_l3_plugin.TricircleL3Plugin"
+    ML2_CONFIG+=$'\n'"ML2_L3_PLUGIN+=,neutron.services.qos.qos_plugin.QoSPlugin"
     ML2_CONFIG+=$'\n'"[[post-config|/"'$Q_PLUGIN_CONF_FILE]]'
     ML2_CONFIG+=$'\n'"[ml2]"
+    ML2_CONFIG+=$'\n'"extension_drivers = port_security,qos"
     ML2_CONFIG+=$'\n'"mechanism_drivers = openvswitch,linuxbridge,l2population"
     ML2_CONFIG+=$'\n'"[agent]"
     ML2_CONFIG+=$'\n'"extensions=sfc"

tricircle/tempestplugin/qos_policy_rule_test.yaml

@@ -0,0 +1,861 @@
+- task_set_id: preparation
+  tasks:
+    - task_id: policy1
+      type: qos_policy
+      region: central
+      params:
+        name: policy1
+    - task_id: bandwidth_limit_rule1
+      region: central
+      type: qos_bandwidth_limit_rule
+      depend: [policy1]
+      params:
+        max_kbps: 3000
+        max_burst_kbps: 300
+        qos_policy: policy1@id
+    - task_id: policy2
+      type: qos_policy
+      region: central
+      params:
+        name: policy2
+    - task_id: bandwidth_limit_rule2
+      region: central
+      type: qos_bandwidth_limit_rule
+      depend: [policy2]
+      params:
+        max_kbps: 3000
+        max_burst_kbps: 300
+        qos_policy: policy2@id
+    - task_id: policy3
+      type: qos_policy
+      region: central
+      params:
+        name: policy3
+    - task_id: policy4
+      type: qos_policy
+      region: central
+      params:
+        name: policy4
+    - task_id: policy5
+      type: qos_policy
+      region: central
+      params:
+        name: policy5
+    - task_id: bandwidth_limit_rule5
+      region: central
+      type: qos_bandwidth_limit_rule
+      depend: [policy5]
+      params:
+        max_kbps: 3000
+        max_burst_kbps: 300
+        qos_policy: policy5@id
+    - task_id: dscp_marking_rule1
+      region: central
+      type: qos_dscp_marking_rule
+      depend: [policy1]
+      params:
+        dscp_mark: 30
+        qos_policy: policy1@id
+    - task_id: net1
+      region: central
+      type: network
+      params:
+        name: net1
+    - task_id: subnet1
+      region: central
+      type: subnet
+      depend: [net1]
+      params:
+        name: subnet1
+        ip_version: 4
+        cidr: 10.0.1.0/24
+        network_id: net1@id
+    - task_id: port1
+      region: central
+      type: port
+      depend:
+        - net1
+        - subnet1
+      params:
+        name: port1
+        network_id: net1@id
+    - task_id: net2
+      region: central
+      type: network
+      params:
+        name: net2
+    - task_id: subnet2
+      region: central
+      type: subnet
+      depend: [net2]
+      params:
+        name: subnet2
+        ip_version: 4
+        cidr: 10.0.2.0/24
+        network_id: net2@id
+    - task_id: port2
+      region: central
+      type: port
+      depend:
+        - net2
+        - subnet2
+      params:
+        name: port2
+        network_id: net2@id
+    - task_id: net3
+      region: central
+      type: network
+      params:
+        name: net3
+    - task_id: subnet3
+      region: central
+      type: subnet
+      depend: [net3]
+      params:
+        name: subnet3
+        ip_version: 4
+        cidr: 10.0.3.0/24
+        network_id: net3@id
+    - task_id: port3
+      region: central
+      type: port
+      depend:
+        - net3
+        - subnet3
+      params:
+        name: port3
+        network_id: net3@id
+    - task_id: net4
+      region: central
+      type: network
+      params:
+        name: net4
+    - task_id: subnet4
+      region: central
+      type: subnet
+      depend: [net4]
+      params:
+        name: subnet4
+        ip_version: 4
+        cidr: 10.0.4.0/24
+        network_id: net4@id
+    - task_id: port4
+      region: central
+      type: port
+      depend:
+        - net4
+        - subnet4
+      params:
+        name: port4
+        network_id: net4@id
+    - task_id: net5
+      region: central
+      type: network
+      params:
+        name: net5
+    - task_id: image1
+      region: region1
+      type: image
+      query:
+        get_one: true
+- task_set_id: check_qos_create
+  depend: [preparation]
+  tasks:
+    - task_id: check_policy1_central
+      region: central
+      type: qos_policy
+      validate:
+        predicate: any
+        condition:
+          - name: policy1
+    - task_id: check_bandwidth_limit_rule1
+      region: central
+      type: qos_bandwidth_limit_rule
+      params:
+        qos_policy: preparation@policy1@id
+      validate:
+        predicate: any
+        condition:
+          - id: preparation@bandwidth_limit_rule1@id
+    - task_id: check_dscp_marking_rule1
+      region: central
+      type: qos_dscp_marking_rule
+      params:
+        qos_policy: preparation@policy1@id
+      validate:
+        predicate: any
+        condition:
+          - id: preparation@dscp_marking_rule1@id
+    - task_id: check_policy1_region
+      region: region1
+      type: qos_policy
+      validate:
+        predicate: all
+        condition:
+          - name: invalid-name
+- task_set_id: policy_update_only_central
+  depend: [preparation]
+  tasks:
+    - task_id: policy1_update_only_central
+      region: central
+      type: qos_policy
+      action:
+        target: preparation@policy1@id
+        method: update
+      params:
+        name: policy1_update_only_central
+    - task_id: bandwidth_limit_rule1_update_only_central
+      region: central
+      type: qos_bandwidth_limit_rule
+      action:
+        target: preparation@bandwidth_limit_rule1@id
+        method: update
+      params:
+        qos_policy: preparation@policy1@id
+        max_kbps: 4000
+    - task_id: dscp_marking_rule1_update_only_central
+      region: central
+      type: qos_dscp_marking_rule
+      action:
+        target: preparation@dscp_marking_rule1@id
+        method: update
+      params:
+        qos_policy: preparation@policy1@id
+        dscp_mark: 40
+- task_set_id: check_qos_update_only_central
+  depend: [preparation]
+  tasks:
+    - task_id: check_policy1_update_only_central
+      region: central
+      type: qos_policy
+      validate:
+        predicate: any
+        condition:
+          - name: policy1_update_only_central
+    - task_id: check_limit_rule1_update_only_central
+      region: central
+      type: qos_bandwidth_limit_rule
+      params:
+        qos_policy: preparation@policy1@id
+      validate:
+        predicate: any
+        condition:
+          - id: preparation@bandwidth_limit_rule1@id
+            max_kbps: 4000
+    - task_id: check_dscp_rule1_update_only_central
+      region: central
+      type: qos_dscp_marking_rule
+      params:
+        qos_policy: preparation@policy1@id
+      validate:
+        predicate: any
+        condition:
+          - id: preparation@dscp_marking_rule1@id
+            dscp_mark: 40
+- task_set_id: central_bound_policy
+  depend: [preparation]
+  tasks:
+    - task_id: net1_policy
+      region: central
+      type: network
+      action:
+        target: preparation@net1@id
+        method: update
+      params:
+        qos_policy_id: preparation@policy1@id
+    - task_id: net5_policy
+      region: central
+      type: network
+      action:
+        target: preparation@net5@id
+        method: update
+      params:
+        qos_policy_id: preparation@policy5@id
+    - task_id: port3_policy
+      region: central
+      type: port
+      action:
+        target: preparation@port3@id
+        method: update
+      params:
+        qos_policy_id: preparation@policy3@id
+- task_set_id: create_vm
+  depend: [preparation]
+  tasks:
+    - task_id: vm1
+      region: region1
+      type: server
+      params:
+        flavor_id: 1
+        image_id: preparation@image1@id
+        name: vm1
+        networks:
+          - uuid: preparation@net1@id
+            port: preparation@port1@id
+    - task_id: vm2
+      region: region1
+      type: server
+      params:
+        flavor_id: 1
+        image_id: preparation@image1@id
+        name: vm2
+        networks:
+          - uuid: preparation@net2@id
+    - task_id: vm3
+      region: region1
+      type: server
+      params:
+        flavor_id: 1
+        image_id: preparation@image1@id
+        name: vm3
+        networks:
+          - uuid: preparation@net3@id
+            port: preparation@port3@id
+    - task_id: vm4
+      region: region1
+      type: server
+      params:
+        flavor_id: 1
+        image_id: preparation@image1@id
+        name: vm4
+        networks:
+          - uuid: preparation@net4@id
+            port: preparation@port4@id
+- task_set_id: check_vm
+  depend: [preparation]
+  tasks:
+    - task_id: check_vm1
+      region: region1
+      type: server
+      validate:
+        predicate: any
+        retries: 10
+        condition:
+          - status: ACTIVE
+            name: vm1
+    - task_id: check_vm2
+      region: region1
+      type: server
+      validate:
+        predicate: any
+        retries: 10
+        condition:
+          - status: ACTIVE
+            name: vm2
+    - task_id: check_vm3
+      region: region1
+      type: server