RETIRED, Tricircle is to provide networking automation across Neutron.
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# Copyright 2015 Huawei Technologies Co., Ltd.
# 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 collections
import copy
import six
from oslo_config import cfg
from oslo_db.sqlalchemy import utils as sa_utils
import oslo_log.helpers as log_helpers
from oslo_log import log
from neutron.api.v2 import attributes
from neutron.db import common_db_mixin
from neutron.db import db_base_plugin_v2
from neutron.db import external_net_db
from neutron.db import extradhcpopt_db
# NOTE(zhiyuan) though not used, this import cannot be removed because Router
# relies on one table defined in l3_agentschedulers_db
from neutron.db import l3_agentschedulers_db # noqa
from neutron.db import l3_db
from neutron.db import models_v2
from neutron.db import portbindings_db
from neutron.extensions import availability_zone as az_ext
from neutron.extensions import external_net
from neutron.extensions import l3
from neutron.extensions import providernet as provider
from neutron_lib.api import validators
from neutron_lib import constants
from neutron_lib import exceptions
import neutronclient.common.exceptions as q_cli_exceptions
from sqlalchemy import sql
import tricircle.common.client as t_client
import tricircle.common.constants as t_constants
import tricircle.common.context as t_context
import tricircle.common.exceptions as t_exceptions
from tricircle.common.i18n import _, _LE, _LI, _LW
from tricircle.common import xrpcapi
import tricircle.db.api as db_api
from tricircle.db import core
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 security_groups
tricircle_opts = [
cfg.ListOpt('type_drivers',
default=['local'],
help=_('List of network type driver entry points to be loaded '
'from the tricircle.network.type_drivers namespace.')),
cfg.ListOpt('tenant_network_types',
default=['local'],
help=_('Ordered list of network_types to allocate as tenant '
'networks. The default value "local" is useful for '
'single pod connectivity.')),
cfg.ListOpt('network_vlan_ranges',
default=[],
help=_('List of <physical_network>:<vlan_min>:<vlan_max> or '
'<physical_network> specifying physical_network names '
'usable for VLAN provider and tenant networks, as '
'well as ranges of VLAN tags on each available for '
'allocation to tenant networks.')),
cfg.StrOpt('bridge_network_type',
default='',
help=_('Type of l3 bridge network, this type should be enabled '
'in tenant_network_types and is not local type.')),
cfg.StrOpt('default_region_for_external_network',
default='RegionOne',
help=_('Default Region where the external network belongs'
' to.')),
cfg.BoolOpt('enable_api_gateway',
default=True,
help=_('Whether the Nova API gateway is enabled'))
]
tricircle_opt_group = cfg.OptGroup('tricircle')
cfg.CONF.register_group(tricircle_opt_group)
cfg.CONF.register_opts(tricircle_opts, group=tricircle_opt_group)
LOG = log.getLogger(__name__)
NON_VM_PORT_TYPES = [constants.DEVICE_OWNER_ROUTER_INTF,
constants.DEVICE_OWNER_ROUTER_GW,
constants.DEVICE_OWNER_DHCP]
class TricirclePlugin(db_base_plugin_v2.NeutronDbPluginV2,
security_groups.TricircleSecurityGroupMixin,
external_net_db.External_net_db_mixin,
portbindings_db.PortBindingMixin,
extradhcpopt_db.ExtraDhcpOptMixin,
l3_db.L3_NAT_dbonly_mixin):
__native_bulk_support = True
__native_pagination_support = True
__native_sorting_support = True
# NOTE(zhiyuan) we don't support "agent" and "availability_zone" extensions
# and also it's no need for us to support, but "network_availability_zone"
# depends on these two extensions so we need to register them
supported_extension_aliases = ["agent",
"quotas",
"extra_dhcp_opt",
"binding",
"security-group",
"external-net",
"availability_zone",
"provider",
"network_availability_zone",
"router"]
def __init__(self):
super(TricirclePlugin, self).__init__()
LOG.info(_LI("Starting Tricircle Neutron Plugin"))
self.clients = {}
self.xjob_handler = xrpcapi.XJobAPI()
self._setup_rpc()
self.type_manager = managers.TricircleTypeManager()
self.type_manager.initialize()
self.helper = helper.NetworkHelper(self)
def _setup_rpc(self):
self.endpoints = []
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]
@log_helpers.log_method_call
def start_rpc_listeners(self):
return []
# NOTE(zhiyuan) use later
# self.topic = topics.PLUGIN
# self.conn = n_rpc.create_connection(new=True)
# self.conn.create_consumer(self.topic, self.endpoints, fanout=False)
# return self.conn.consume_in_threads()
@staticmethod
def _validate_availability_zones(context, az_list, external):
if not az_list:
return
t_ctx = t_context.get_context_from_neutron_context(context)
with context.session.begin():
pods = core.query_resource(t_ctx, models.Pod, [], [])
az_set = set(az_list)
known_az_set = set([pod['az_name'] for pod in pods])
if external:
known_az_set = (known_az_set |
set([pod['region_name'] for pod in pods]))
diff = az_set - known_az_set
if diff:
raise az_ext.AvailabilityZoneNotFound(
availability_zone=diff.pop())
@staticmethod
def _extend_availability_zone(net_res, net_db):
net_res[az_ext.AZ_HINTS] = az_ext.convert_az_string_to_list(
net_db[az_ext.AZ_HINTS])
common_db_mixin.CommonDbMixin.register_dict_extend_funcs(
attributes.NETWORKS, ['_extend_availability_zone'])
@staticmethod
def _ensure_az_set_for_external_network(context, req_data):
external = req_data.get(external_net.EXTERNAL)
external_set = validators.is_attr_set(external)
if not external_set or not external:
return False
if az_ext.AZ_HINTS in req_data and req_data[az_ext.AZ_HINTS]:
return True
# if no az_hints are specified, we will use default region_name
req_data[az_ext.AZ_HINTS] = \
[cfg.CONF.tricircle.default_region_for_external_network]
return True
def _create_bottom_external_network(self, context, net, top_id):
t_ctx = t_context.get_context_from_neutron_context(context)
# use the first pod
az_name = net[az_ext.AZ_HINTS][0]
pod = db_api.find_pod_by_az(t_ctx, az_name)
body = {
'network': {
'name': top_id,
'tenant_id': net['tenant_id'],
'admin_state_up': True,
external_net.EXTERNAL: True
}
}
provider_attrs = ('provider:network_type', 'provider:segmentation_id',
'provider:physical_network')
for provider_attr in provider_attrs:
if validators.is_attr_set(net.get(provider_attr)):
body['network'][provider_attr] = net[provider_attr]
self._prepare_bottom_element(
t_ctx, net['tenant_id'], pod, {'id': top_id},
t_constants.RT_NETWORK, body)
def _create_bottom_external_subnet(self, context, subnet, net, top_id):
t_ctx = t_context.get_context_from_neutron_context(context)
region_name = net[az_ext.AZ_HINTS][0]
pod = db_api.get_pod_by_name(t_ctx, region_name)
b_net_id = db_api.get_bottom_id_by_top_id_region_name(
t_ctx, net['id'], region_name, t_constants.RT_NETWORK)
body = {
'subnet': {
'name': top_id,
'network_id': b_net_id,
'tenant_id': subnet['tenant_id']
}
}
attrs = ('ip_version', 'cidr', 'gateway_ip', 'allocation_pools',
'enable_dhcp')
for attr in attrs:
if validators.is_attr_set(subnet.get(attr)):
body['subnet'][attr] = subnet[attr]
self._prepare_bottom_element(
t_ctx, subnet['tenant_id'], pod, {'id': top_id},
t_constants.RT_SUBNET, body)
@property
def _core_plugin(self):
return self
def create_network(self, context, network):
net_data = network[attributes.NETWORK]
tenant_id = net_data['tenant_id']
is_external = self._ensure_az_set_for_external_network(context,
net_data)
if az_ext.AZ_HINTS in net_data:
self._validate_availability_zones(context,
net_data[az_ext.AZ_HINTS],
is_external)
with context.session.begin(subtransactions=True):
res = super(TricirclePlugin, self).create_network(context, network)
net_data['id'] = res['id']
self.type_manager.create_network_segments(context, net_data,
tenant_id)
self.type_manager.extend_network_dict_provider(context, res)
if az_ext.AZ_HINTS in net_data:
az_hints = az_ext.convert_az_list_to_string(
net_data[az_ext.AZ_HINTS])
update_res = super(TricirclePlugin, self).update_network(
context, res['id'],
{'network': {az_ext.AZ_HINTS: az_hints}})
res[az_ext.AZ_HINTS] = update_res[az_ext.AZ_HINTS]
self._process_l3_create(context, res, net_data)
# put inside a session so when bottom operations fails db can
# rollback
if is_external:
self._create_bottom_external_network(
context, net_data, res['id'])
return res
def delete_network(self, context, network_id):
t_ctx = t_context.get_context_from_neutron_context(context)
try:
mappings = db_api.get_bottom_mappings_by_top_id(
t_ctx, network_id, t_constants.RT_NETWORK)
mappings.extend(db_api.get_bottom_mappings_by_top_id(
t_ctx, network_id, t_constants.RT_SD_NETWORK))
processed_pod_set = set()
for mapping in mappings:
region_name = mapping[0]['region_name']
if region_name in processed_pod_set:
continue
processed_pod_set.add(region_name)
bottom_network_id = mapping[1]
self._get_client(region_name).delete_networks(
t_ctx, bottom_network_id)
# we do not specify resource_type when deleting routing entries
# so if both "network" and "shadow_network" type entries exist
# in one pod(this is possible for cross-pod network), we delete
# them at the same time
with t_ctx.session.begin():
core.delete_resources(
t_ctx, models.ResourceRouting,
filters=[{'key': 'top_id', 'comparator': 'eq',
'value': network_id},
{'key': 'pod_id', 'comparator': 'eq',
'value': mapping[0]['pod_id']}])
except Exception:
raise
with t_ctx.session.begin():
core.delete_resources(t_ctx, models.ResourceRouting,
filters=[{'key': 'top_id',
'comparator': 'eq',
'value': network_id}])
with context.session.begin(subtransactions=True):
self.type_manager.release_network_segments(context, network_id)
super(TricirclePlugin, self).delete_network(context, network_id)
def _raise_if_updates_external_attribute(self, attrs):
"""Raise exception if external attributes are present.
This method is used for plugins that do not support
updating external attributes.
"""
if validators.is_attr_set(attrs.get(external_net.EXTERNAL)):
msg = _("Plugin does not support updating network's "
"router:external attribute")
raise exceptions.InvalidInput(error_message=msg)
def update_network(self, context, network_id, network):
"""update top network
update top network and trigger asynchronous job via RPC to update
bottom network
:param context: neutron context
:param network_id: top network id
:param network: updated body
:return: updated network
"""
net_data = network[attributes.NETWORK]
provider._raise_if_updates_provider_attributes(net_data)
self._raise_if_updates_external_attribute(net_data)
with context.session.begin():
net = super(TricirclePlugin, self).update_network(context,
network_id,
network)
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, network_id, t_constants.POD_NOT_SPECIFIED)
self.type_manager.extend_network_dict_provider(context, net)
return net
def get_network(self, context, network_id, fields=None):
net = super(TricirclePlugin, self).get_network(context, network_id,
fields)
if not fields or 'id' in fields:
self.type_manager.extend_network_dict_provider(context, net)
return net
def get_networks(self, context, filters=None, fields=None,
sorts=None, limit=None, marker=None, page_reverse=False):
nets = super(TricirclePlugin,
self).get_networks(context, filters, fields, sorts,
limit, marker, page_reverse)
if not fields or 'id' in fields:
self.type_manager.extend_networks_dict_provider(context, nets)
return nets
def create_subnet(self, context, subnet):
subnet_data = subnet['subnet']
network = self.get_network(context, subnet_data['network_id'])
with context.session.begin(subtransactions=True):
res = super(TricirclePlugin, self).create_subnet(context, subnet)
# put inside a session so when bottom operations fails db can
# rollback
if network.get(external_net.EXTERNAL):
self._create_bottom_external_subnet(
context, res, network, res['id'])
if res['enable_dhcp']:
try:
t_ctx = t_context.get_context_from_neutron_context(context)
self.helper.prepare_top_dhcp_port(
t_ctx, context, res['tenant_id'], network['id'], res['id'])
except Exception:
self.delete_subnet(context, res['id'])
raise
return res
def _delete_pre_created_port(self, t_ctx, q_ctx, port_name):
ports = super(TricirclePlugin, self).get_ports(
q_ctx, {'name': [port_name]})
if ports:
super(TricirclePlugin, self).delete_port(q_ctx, ports[0]['id'])
db_api.delete_pre_created_resource_mapping(t_ctx, port_name)
def delete_subnet(self, context, subnet_id):
t_ctx = t_context.get_context_from_neutron_context(context)
try:
mappings = db_api.get_bottom_mappings_by_top_id(
t_ctx, subnet_id, t_constants.RT_SUBNET)
mappings.extend(db_api.get_bottom_mappings_by_top_id(
t_ctx, subnet_id, t_constants.RT_SD_SUBNET))
processed_pod_set = set()
for mapping in mappings:
region_name = mapping[0]['region_name']
if region_name in processed_pod_set:
continue
processed_pod_set.add(region_name)
bottom_subnet_id = mapping[1]
self._get_client(region_name).delete_subnets(
t_ctx, bottom_subnet_id)
interface_name = t_constants.interface_port_name % (
mapping[0]['region_name'], subnet_id)
self._delete_pre_created_port(t_ctx, context, interface_name)
# we do not specify resource_type when deleting routing entries
# so if both "subnet" and "shadow_subnet" type entries exist in
# one pod(this is possible for cross-pod network), we delete
# them at the same time
with t_ctx.session.begin():
core.delete_resources(
t_ctx, models.ResourceRouting,
filters=[{'key': 'top_id', 'comparator': 'eq',
'value': subnet_id},
{'key': 'pod_id', 'comparator': 'eq',
'value': mapping[0]['pod_id']}])
except Exception:
raise
dhcp_port_name = t_constants.dhcp_port_name % subnet_id
self._delete_pre_created_port(t_ctx, context, dhcp_port_name)
super(TricirclePlugin, self).delete_subnet(context, subnet_id)
def update_subnet(self, context, subnet_id, subnet):
return super(TricirclePlugin, self).update_subnet(
context, subnet_id, subnet)
def create_port(self, context, port):
port_body = port['port']
if port_body['device_id'] == t_constants.interface_port_device_id:
_, region_name, subnet_id = port_body['name'].split('_')
gateway_port_body = self.helper.get_create_interface_body(
port_body['tenant_id'], port_body['network_id'], region_name,
subnet_id)
t_ctx = t_context.get_context_from_neutron_context(context)
pod = db_api.get_pod_by_name(t_ctx, region_name)
_, t_gateway_id = self.helper.prepare_top_element(
t_ctx, context, port_body['tenant_id'], pod,
{'id': port_body['name']}, t_constants.RT_PORT,
gateway_port_body)
return super(TricirclePlugin, self).get_port(context, t_gateway_id)
db_port = super(TricirclePlugin, self).create_port_db(context, port)
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._process_port_create_security_group(context, result, sgids)
return result
def update_port(self, context, port_id, port):
# TODO(zhiyuan) handle bottom port update
# 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
# because its device_id is not empty
res = super(TricirclePlugin, self).update_port(context, port_id, port)
if t_constants.PROFILE_REGION in port['port'].get(
'binding:profile', {}):
region_name = port['port']['binding:profile'][
t_constants.PROFILE_REGION]
t_ctx = t_context.get_context_from_neutron_context(context)
pod = db_api.get_pod_by_name(t_ctx, region_name)
entries = [(ip['subnet_id'],
t_constants.RT_SUBNET) for ip in res['fixed_ips']]
entries.append((res['network_id'], t_constants.RT_NETWORK))
entries.append((res['id'], t_constants.RT_PORT))
if res['security_groups']:
for sg_id in res['security_groups']:
entries.append((sg_id, t_constants.RT_SG))
for resource_id, resource_type in entries:
if db_api.get_bottom_id_by_top_id_region_name(
t_ctx, resource_id, pod['region_name'], resource_type):
continue
db_api.create_resource_mapping(t_ctx, resource_id, resource_id,
pod['pod_id'], res['tenant_id'],
resource_type)
interfaces = super(TricirclePlugin, self).get_ports(
context,
{'network_id': [res['network_id']],
'device_owner': [constants.DEVICE_OWNER_ROUTER_INTF]})
interfaces = [inf for inf in interfaces if inf['device_id']]
if interfaces:
# request may be come from service, we use an admin context
# to run the xjob
admin_context = t_context.get_admin_context()
self.xjob_handler.setup_bottom_router(
admin_context, res['network_id'],
interfaces[0]['device_id'], pod['pod_id'])
else:
LOG.debug('Update port: no interfaces found, xjob not'
'triggered')
self.xjob_handler.configure_security_group_rules(t_ctx,
res['tenant_id'])
return res
def delete_port(self, context, port_id, l3_port_check=True):
t_ctx = t_context.get_context_from_neutron_context(context)
port = super(TricirclePlugin, self).get_port(context, port_id)
# NOTE(zhiyuan) the deletion of non vm ports like router interfaces
# and dhcp ports is handled by "setup_bottom_router" job, this job
# will issue request to delete central ports, local ports and routing
# entries, so here we just remove database records for central ports.
# the deletion of vm ports is different since both users and nova are
# involved. nova may delete vm ports via local neutron so local neutron
# needs to send request to central neutron to delete the corresponding
# central ports; users may delete a pre-created vm ports via central
# neutron so central neutron needs to send request to local neutron to
# delete the corresponding local ports. to avoid infinite api calls,
# we use a "delete_server_port" job to delete the local ports.
if port.get('device_owner') not in NON_VM_PORT_TYPES:
try:
mappings = db_api.get_bottom_mappings_by_top_id(
t_ctx, port_id, t_constants.RT_PORT)
if mappings:
pod_id = mappings[0][0]['pod_id']
bottom_port_id = mappings[0][1]
self.xjob_handler.delete_server_port(t_ctx, bottom_port_id,
pod_id)
except Exception:
raise
with t_ctx.session.begin():
core.delete_resources(t_ctx, models.ResourceRouting,
filters=[{'key': 'top_id',
'comparator': 'eq',
'value': port_id}])
super(TricirclePlugin, self).delete_port(context, port_id)
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(
t_ctx, port_id, t_constants.RT_PORT)
if mappings:
region_name = mappings[0][0]['region_name']
bottom_port_id = mappings[0][1]
port = self._get_client(region_name).get_ports(
t_ctx, bottom_port_id)
# TODO(zhiyuan) handle the case that bottom port does not exist
port['id'] = port_id
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
else:
return super(TricirclePlugin, self).get_port(context,
port_id, fields)
@staticmethod
def _apply_ports_filters(query, model, filters):
if not filters:
return query
fixed_ips = filters.pop('fixed_ips', {})
ip_addresses = fixed_ips.get('ip_address')
subnet_ids = fixed_ips.get('subnet_id')
if ip_addresses or subnet_ids:
query = query.join(models_v2.Port.fixed_ips)
if ip_addresses:
query = query.filter(
models_v2.IPAllocation.ip_address.in_(ip_addresses))
if subnet_ids:
query = query.filter(
models_v2.IPAllocation.subnet_id.in_(subnet_ids))
for key, value in six.iteritems(filters):
column = getattr(model, key, None)
if column is not None:
if not value:
query = query.filter(sql.false())
return query
query = query.filter(column.in_(value))
return query
def _get_ports_from_db_with_number(self, context,
number, last_port_id, top_bottom_map,
filters=None):
query = context.session.query(models_v2.Port)
# set step as two times of number to have better chance to obtain all
# ports we need
search_step = number * 2
if search_step < 100:
search_step = 100
query = self._apply_ports_filters(query, models_v2.Port, filters)
query = sa_utils.paginate_query(
query, models_v2.Port, search_step,
# create a dummy port object
marker=models_v2.Port(
id=last_port_id) if last_port_id else None,
sort_keys=['id'],
sort_dirs=['desc-nullsfirst'])
total = 0
ret = []
for port in query:
total += 1
if port['id'] not in top_bottom_map:
ret.append(self._make_port_dict(port))
if len(ret) == number:
return ret
# NOTE(zhiyuan) we have traversed all the ports
if total < search_step:
return ret
else:
ret.extend(self._get_ports_from_db_with_number(
context, number - len(ret), ret[-1]['id'], top_bottom_map))
def _get_ports_from_top_with_number(self, context,
number, last_port_id, top_bottom_map,
filters=None):
with context.session.begin():
ret = self._get_ports_from_db_with_number(
context, number, last_port_id, top_bottom_map, filters)
return {'ports': ret}
def _get_ports_from_top(self, context, top_bottom_map, filters=None):
with context.session.begin():
ret = []
query = context.session.query(models_v2.Port)
query = self._apply_ports_filters(query, models_v2.Port, filters)
for port in query:
if port['id'] not in top_bottom_map:
ret.append(self._make_port_dict(port))
return ret
@staticmethod
def _map_port_from_bottom_to_top(port, bottom_top_map):
if 'network_id' in port and port['network_id'] in bottom_top_map:
port['network_id'] = bottom_top_map[port['network_id']]
if 'fixed_ips' in port:
for ip in port['fixed_ips']:
if ip['subnet_id'] in bottom_top_map:
ip['subnet_id'] = bottom_top_map[ip['subnet_id']]
if 'device_id' in port and port['device_id'] in bottom_top_map:
port['device_id'] = bottom_top_map[port['device_id']]
@staticmethod
def _map_ports_from_bottom_to_top(ports, bottom_top_map):
# TODO(zhiyuan) judge if it's fine to remove unmapped port
port_list = []
for port in ports:
if port['id'] not in bottom_top_map:
continue
if port.get('device_owner') in NON_VM_PORT_TYPES:
continue
port['id'] = bottom_top_map[port['id']]
TricirclePlugin._map_port_from_bottom_to_top(port, bottom_top_map)
port_list.append(port)
return port_list
@staticmethod
def _get_map_filter_ids(key, value, pod_id, top_bottom_map):
if key in ('id', 'network_id', 'device_id'):
id_list = []
for _id in value:
key = '%s_%s' % (pod_id, _id)
if _id in top_bottom_map:
id_list.append(top_bottom_map[_id])
elif key in top_bottom_map:
id_list.append(top_bottom_map[key])
else:
id_list.append(_id)
return id_list
@staticmethod
def _filter_shadow_port(ports, pod_id, port_pod_map):
port_list = []
for port in ports:
if pod_id not in port_pod_map[port['id']]:
port_list.append(port)
return port_list
def _get_ports_from_pod_with_number(self, context,
current_pod, number, last_port_id,
bottom_top_map, top_bottom_map,
port_pod_map, filters=None):
# NOTE(zhiyuan) last_port_id is top id, also id in returned port dict
# also uses top id. when interacting with bottom pod, need to map
# top to bottom in request and map bottom to top in response
t_ctx = t_context.get_context_from_neutron_context(context)
q_client = self._get_client(
current_pod['region_name']).get_native_client('port', t_ctx)
params = {'limit': number}
if filters:
_filters = dict(filters)
for key, value in _filters:
if key == 'fixed_ips':
if 'ip_address' in value:
_filters[key] = 'ip_address=%s' % value[
'ip_address'][0]
continue
id_list = self._get_map_filter_ids(
key, value, current_pod['pod_id'], top_bottom_map)
if id_list:
_filters[key] = id_list
params.update(_filters)
if last_port_id:
# map top id to bottom id in request
params['marker'] = top_bottom_map[last_port_id]
res = q_client.get(q_client.ports_path, params=params)
ports = self._filter_shadow_port(res['ports'], current_pod['pod_id'],
port_pod_map)
# map bottom id to top id in client response
mapped_port_list = self._map_ports_from_bottom_to_top(ports,
bottom_top_map)
del res['ports']
res['ports'] = mapped_port_list
if len(res['ports']) == number:
return res
else:
next_pod = db_api.get_next_bottom_pod(
t_ctx, current_pod_id=current_pod['pod_id'])
if not next_pod:
# _get_ports_from_top_with_number uses top id, no need to map
next_res = self._get_ports_from_top_with_number(
context, number - len(res['ports']), '', top_bottom_map,
filters)
next_res['ports'].extend(res['ports'])
return next_res
else:
# _get_ports_from_pod_with_number itself returns top id, no
# need to map
next_res = self._get_ports_from_pod_with_number(
context, next_pod, number - len(res['ports']), '',
bottom_top_map, top_bottom_map, port_pod_map, filters)
next_res['ports'].extend(res['ports'])
return next_res
def get_ports(self, context, filters=None, fields=None, sorts=None,
limit=None, marker=None, page_reverse=False):
# Directly sending list request with "id" filter to local Neutron
# server will cause problems. Because when local Neutron server
# receives list request with "id" filter, it will query central
# Neutron server and try to create the port. Here we introduce a
# special handle for "id" filter
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)
if len(filters) == 1:
# only "id" is in the filter, we use get_port to get all the ports
ports = []
for port_id in filters['id']:
try:
ports.append(self.get_port(context, port_id, fields))
except exceptions.PortNotFound:
continue
return ports
else:
# other filters are also specified, we first get the ports with
# other filters, then filter the ports again with "id"
id_filters = filters.pop('id')
ports = self._get_ports(context, filters, None, sorts, limit,
marker, page_reverse)
return [super(TricirclePlugin,
self)._fields(
p, fields) for p in ports if p['id'] in id_filters]
def _get_ports(self, context, filters=None, fields=None, sorts=None,
limit=None, marker=None, page_reverse=False):
t_ctx = t_context.get_context_from_neutron_context(context)
non_vm_ports = super(TricirclePlugin, self).get_ports(
context, {'device_owner': NON_VM_PORT_TYPES}, ['id'])
non_vm_port_ids = set([port['id'] for port in non_vm_ports])
with t_ctx.session.begin():
bottom_top_map = {}
top_bottom_map = {}
for resource in (t_constants.RT_PORT, 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['top_id'] in non_vm_port_ids:
continue
if route['bottom_id']:
bottom_top_map[route['bottom_id']] = route['top_id']
if route['resource_type'] == t_constants.RT_PORT:
key = route['top_id']
else:
# for non port resource, one top resource is
# possible to be mapped to more than one bottom
# resource
key = '%s_%s' % (route['pod_id'], route['top_id'])
top_bottom_map[key] = route['bottom_id']
port_pod_map = collections.defaultdict(set)
route_filters = [{'key': 'resource_type',
'comparator': 'eq',
'value': t_constants.RT_SD_PORT}]
routes = core.query_resource(t_ctx, models.ResourceRouting,
route_filters, [])
for route in routes:
if route['bottom_id']:
port_pod_map[route['bottom_id']].add(route['pod_id'])
if limit:
if marker:
mappings = db_api.get_bottom_mappings_by_top_id(
t_ctx, marker, t_constants.RT_PORT)
# NOTE(zhiyuan) if mapping exists, we retrieve port information
# from bottom, otherwise from top
if mappings:
pod_id = mappings[0][0]['pod_id']
current_pod = db_api.get_pod(t_ctx, pod_id)
res = self._get_ports_from_pod_with_number(
context, current_pod, limit, marker,
bottom_top_map, top_bottom_map, port_pod_map, filters)
else:
res = self._get_ports_from_top_with_number(
context, limit, marker, top_bottom_map, filters)
else:
current_pod = db_api.get_next_bottom_pod(t_ctx)
# only top pod registered
if current_pod:
res = self._get_ports_from_pod_with_number(
context, current_pod, limit, '',
bottom_top_map, top_bottom_map, port_pod_map, filters)
else:
res = self._get_ports_from_top_with_number(
context, limit, marker, top_bottom_map, filters)
# NOTE(zhiyuan) we can safely return ports, neutron controller will
# generate links for us so we do not need to worry about it.
#
# _get_ports_from_pod_with_number already traverses all the pods
# to try to get ports equal to limit, so pod is transparent for
# controller.
return [super(TricirclePlugin,
self)._fields(p, fields) for p in res['ports']]
else:
ret = []
pods = db_api.list_pods(t_ctx)
for pod in pods:
if not pod['az_name']:
continue
_filters = []
if filters:
for key, value in six.iteritems(filters):
if key == 'fixed_ips':
if 'ip_address' in value:
_filters.append(
{'key': key, 'comparator': 'eq',
'value': 'ip_address=%s' % value[
'ip_address'][0]})
continue
id_list = self._get_map_filter_ids(
key, value, pod['pod_id'], top_bottom_map)
if id_list:
_filters.append({'key': key,
'comparator': 'eq',
'value': id_list})
else:
_filters.append({'key': key,
'comparator': 'eq',
'value': value})
client = self._get_client(pod['region_name'])
ports = client.list_ports(t_ctx, filters=_filters)
ret.extend(self._filter_shadow_port(ports, pod['pod_id'],
port_pod_map))
ret = self._map_ports_from_bottom_to_top(ret, bottom_top_map)
ret.extend(self._get_ports_from_top(context, top_bottom_map,
filters))
return [super(TricirclePlugin,
self)._fields(p, fields) for p in ret]
def create_router(self, context, router):
return super(TricirclePlugin, self).create_router(context, router)
def _delete_top_bridge_resource(self, t_ctx, q_ctx, resource_type,
resource_id, resource_name):
# first we update the routing entry to clear bottom_id and expire the
# entry, if we succeed to delete the bridge resource next, we continue
# to delete this expired entry; otherwise, we fail to delete the bridge
# resource, then when the resource is accessed via lock_handle module,
# that module will find the resource and update the entry
with t_ctx.session.begin():
core.update_resources(
t_ctx, models.ResourceRouting,
[{'key': 'bottom_id', 'comparator': 'eq',
'value': resource_id},
{'key': 'top_id', 'comparator': 'eq',
'value': resource_name}],
{'bottom_id': None,
'created_at': t_constants.expire_time,
'updated_at': t_constants.expire_time})
if resource_type == t_constants.RT_PORT:
getattr(super(TricirclePlugin, self), 'delete_%s' % resource_type)(
q_ctx, resource_id)
else:
getattr(self, 'delete_%s' % resource_type)(q_ctx, resource_id)
with t_ctx.session.begin():
core.delete_resources(t_ctx, models.ResourceRouting,
[{'key': 'top_id',
'comparator': 'eq',
'value': resource_name}])
def _delete_top_bridge_network_subnet(self, t_ctx, q_ctx):
project_id = t_ctx.project_id
bridge_subnet_name = t_constants.bridge_subnet_name % project_id
bridge_subnets = super(TricirclePlugin, self).get_subnets(
q_ctx, {'name': [bridge_subnet_name]})
if bridge_subnets:
self._delete_top_bridge_resource(
t_ctx, q_ctx, t_constants.RT_SUBNET,
bridge_subnets[0]['id'], bridge_subnet_name)
bridge_net_name = t_constants.bridge_net_name % project_id
bridge_nets = super(TricirclePlugin, self).get_networks(
q_ctx, {'name': [bridge_net_name]})
if bridge_nets:
self._delete_top_bridge_resource(
t_ctx, q_ctx, t_constants.RT_NETWORK, bridge_nets[0]['id'],
bridge_net_name)
def _delete_top_bridge_port(self, t_ctx, q_ctx, bridge_port_id,
bridge_port_name):
self._delete_top_bridge_resource(t_ctx, q_ctx, t_constants.RT_PORT,
bridge_port_id, bridge_port_name)
def delete_router(self, context, _id):
router = super(TricirclePlugin,
self)._ensure_router_not_in_use(context, _id)
project_id = router['tenant_id']
t_ctx = t_context.get_context_from_neutron_context(context)
mappings = db_api.get_bottom_mappings_by_top_id(t_ctx, _id,
t_constants.RT_ROUTER)
for pod, b_router_id in mappings:
b_client = self._get_client(pod['region_name'])
bridge_port_name = t_constants.bridge_port_name % (project_id,
b_router_id)
bridge_ports = super(TricirclePlugin, self).get_ports(
context, {'name': [bridge_port_name]})
if bridge_ports:
t_ns_port_id = bridge_ports[0]['id']
b_client.action_routers(t_ctx, 'remove_gateway', b_router_id)
self._delete_top_bridge_port(t_ctx, context, t_ns_port_id,
bridge_port_name)
b_client.delete_routers(t_ctx, b_router_id)
db_api.delete_mappings_by_bottom_id(t_ctx, b_router_id)
mappings = db_api.get_bottom_mappings_by_top_id(
t_ctx, _id, t_constants.RT_NS_ROUTER)
for pod, b_ns_router_id in mappings:
b_client = self._get_client(pod['region_name'])
bridge_subnet_name = t_constants.bridge_subnet_name % project_id
bridge_subnets = super(TricirclePlugin,
self).get_subnets(
context, {'name': [bridge_subnet_name]})
if bridge_subnets:
t_bridge_subnet_id = bridge_subnets[0]['id']
b_bridge_subnet_id = \
db_api.get_bottom_id_by_top_id_region_name(
t_ctx, t_bridge_subnet_id, pod['region_name'],
t_constants.RT_SUBNET)
if b_bridge_subnet_id:
request_body = {'subnet_id': b_bridge_subnet_id}
try:
b_client.action_routers(t_ctx, 'remove_interface',
b_ns_router_id, request_body)
except Exception as e:
if e.status_code == 404:
# 404 error means that the router interface has
# been already detached, skip this exception
pass
raise
b_client.delete_routers(t_ctx, b_ns_router_id)
db_api.delete_mappings_by_bottom_id(t_ctx, b_ns_router_id)
routers = super(TricirclePlugin, self).get_routers(
context, {'tenant_id': [project_id]})
if len(routers) <= 1:
self._delete_top_bridge_network_subnet(t_ctx, context)
super(TricirclePlugin, self).delete_router(context, _id)
def _prepare_top_element(self, t_ctx, q_ctx,
project_id, pod, ele, _type, body):
return self.helper.prepare_top_element(
t_ctx, q_ctx, project_id, pod, ele, _type, body)
def _prepare_bottom_element(self, t_ctx,
project_id, pod, ele, _type, body):
return self.helper.prepare_bottom_element(
t_ctx, project_id, pod, ele, _type, body)
def _get_bridge_subnet_pool_id(self, t_ctx, q_ctx, project_id, pod):
pool_name = t_constants.bridge_subnet_pool_name
pool_cidr = cfg.CONF.client.bridge_cidr
pool_ele = {'id': pool_name}
body = {'subnetpool': {'tenant_id': project_id,
'name': pool_name,
'shared': True,
'is_default': False,
'prefixes': [pool_cidr]}}
is_admin = q_ctx.is_admin
q_ctx.is_admin = True
_, pool_id = self._prepare_top_element(t_ctx, q_ctx, project_id, pod,
pool_ele, 'subnetpool', body)
q_ctx.is_admin = is_admin
return pool_id
def _get_bridge_network_subnet(self, t_ctx, q_ctx, project_id, pod,
pool_id):
net_name = t_constants.bridge_net_name % project_id
net_ele = {'id': net_name}
subnet_name = t_constants.bridge_subnet_name % project_id
subnet_ele = {'id': subnet_name}
is_admin = q_ctx.is_admin
q_ctx.is_admin = True
net_body = {'network': {
'tenant_id': project_id,
'name': net_name,
'shared': False,
'admin_state_up': True,
provider.NETWORK_TYPE: cfg.CONF.tricircle.bridge_network_type}}
_, net_id = self._prepare_top_element(
t_ctx, q_ctx, project_id, pod, net_ele, 'network', net_body)
subnet_body = {
'subnet': {
'network_id': net_id,
'name': subnet_name,
'prefixlen': 24,
'ip_version': 4,
'allocation_pools': constants.ATTR_NOT_SPECIFIED,
'dns_nameservers': constants.ATTR_NOT_SPECIFIED,
'host_routes': constants.ATTR_NOT_SPECIFIED,
'cidr': constants.ATTR_NOT_SPECIFIED,
'subnetpool_id': pool_id,
'enable_dhcp': False,
'tenant_id': project_id
}
}
_, subnet_id = self._prepare_top_element(
t_ctx, q_ctx,
project_id, pod, subnet_ele, 'subnet', subnet_body)
q_ctx.is_admin = is_admin
net = self.get_network(q_ctx, net_id)
subnet = self.get_subnet(q_ctx, subnet_id)
return net, subnet
def _get_bridge_interface(self, t_ctx, q_ctx, project_id, pod,
t_net_id, b_router_id):
port_id = self.helper.get_bridge_interface(t_ctx, q_ctx, project_id,
pod, t_net_id, b_router_id)
return super(TricirclePlugin, self).get_port(q_ctx, port_id)
def _get_bottom_bridge_elements(self, q_ctx, project_id,
pod, t_net, is_external, t_subnet, t_port):
t_ctx = t_context.get_context_from_neutron_context(q_ctx)
return self.helper.get_bottom_bridge_elements(
t_ctx, project_id, pod, t_net, is_external, t_subnet, t_port)
def _get_net_pods_by_interface_info(self, t_ctx, q_ctx, add_by_port,
interface_info):
if add_by_port:
port = self.get_port(q_ctx, interface_info['port_id'])
net_id = port['network_id']
else:
subnet = self.get_subnet(q_ctx, interface_info['subnet_id'])
net_id = subnet['network_id']
mappings = db_api.get_bottom_mappings_by_top_id(
t_ctx, net_id, t_constants.RT_NETWORK)
return net_id, [mapping[0] for mapping in mappings]
# NOTE(zhiyuan) the origin implementation in l3_db uses port returned from
# get_port in core plugin to check, change it to base plugin, since only
# top port information should be checked.
def _check_router_port(self, context, port_id, device_id):
port = super(TricirclePlugin, self).get_port(context, port_id)
if port['device_id'] != device_id:
raise exceptions.PortInUse(net_id=port['network_id'],
port_id=port['id'],
device_id=port['device_id'])
if not port['fixed_ips']:
msg = _('Router port must have at least one fixed IP')
raise exceptions.BadRequest(resource='router', msg=msg)
return port
def _add_router_gateway(self, context, router_id, router_data):
# get top external network information
ext_net_id = router_data[l3.EXTERNAL_GW_INFO].get('network_id')
t_ctx = t_context.get_context_from_neutron_context(context)
network = self.get_network(context, ext_net_id)
# when creating external network in top pod, pod name is passed via
# az hint parameter, so tricircle plugin knows where to create the
# corresponding bottom external network. here we get bottom external
# network ID from resource routing table.
if not network.get(az_ext.AZ_HINTS):
raise t_exceptions.ExternalNetPodNotSpecify()
region_name = network[az_ext.AZ_HINTS][0]
pod = db_api.get_pod_by_name(t_ctx, region_name)
b_net_id = db_api.get_bottom_id_by_top_id_region_name(
t_ctx, ext_net_id, region_name, t_constants.RT_NETWORK)
# create corresponding bottom router in the pod where external network
# is located.
t_router = self._get_router(context, router_id)
# TODO(zhiyuan) decide router is distributed or not from pod table
# currently "distributed" is set to False, should add a metadata field
# to pod table, and decide distributed or not from the metadata later
body = {'router': {'name': t_constants.ns_router_name % router_id,
'distributed': False}}
_, b_router_id = self._prepare_bottom_element(
t_ctx, t_router['tenant_id'], pod, t_router,
t_constants.RT_NS_ROUTER, body)
# both router and external network in bottom pod are ready, attach
# external network to router in bottom pod.
b_client = self._get_client(region_name)
t_info = router_data[l3.EXTERNAL_GW_INFO]
b_info = {'network_id': b_net_id}
if 'enable_snat' in t_info:
b_info['enable_snat'] = t_info['enable_snat']
if 'external_fixed_ips' in t_info:
fixed_ips = []
for ip in t_info['external_fixed_ips']:
t_subnet_id = ip['subnet_id']
b_subnet_id = db_api.get_bottom_id_by_top_id_region_name(
t_ctx, t_subnet_id, region_name,
t_constants.RT_SUBNET)
fixed_ips.append({'subnet_id': b_subnet_id,
'ip_address': ip['ip_address']})
b_info['external_fixed_ips'] = fixed_ips
b_client.action_routers(t_ctx, 'add_gateway', b_router_id, b_info)
# when internal network(providing fixed ip) and external network
# (providing floating ip) are in different bottom pods, we utilize a
# bridge network to connect these two networks. here we create the
# bridge network.
t_pod = db_api.get_top_pod(t_ctx)
project_id = t_router['tenant_id']
pool_id = self._get_bridge_subnet_pool_id(t_ctx, context, None, t_pod)
t_bridge_net, t_bridge_subnet = self._get_bridge_network_subnet(
t_ctx, context, project_id, t_pod, pool_id)
(_, _, b_bridge_subnet_id,
b_bridge_net_id) = self._get_bottom_bridge_elements(
context, project_id, pod, t_bridge_net, True, t_bridge_subnet,
None)
# here we attach the bridge network to the router in bottom pod. to
# make this method reentrant, we check if the interface is already
# attached before attaching the interface.
def _is_bridge_network_attached():
interfaces = b_client.list_ports(t_ctx,
filters=[{'key': 'device_id',
'comparator': 'eq',
'value': b_router_id}])
for interface in interfaces:
for fixed_ip in interface['fixed_ips']:
if fixed_ip['subnet_id'] == b_bridge_subnet_id:
return True
return False
is_attach = _is_bridge_network_attached()
if not is_attach:
# no need to explicitly create the top bridge port, the ip reserved
# for router interface will be used.
b_client.action_routers(t_ctx, 'add_interface', b_router_id,
{'subnet_id': b_bridge_subnet_id})
def _remove_router_gateway(self, context, router_id):
t_ctx = t_context.get_context_from_neutron_context(context)
t_router = self._get_router(context, router_id)
gw_port = t_router.gw_port
if not gw_port:
return
ext_net_id = gw_port['network_id']
t_network = self.get_network(context, ext_net_id)
if az_ext.AZ_HINTS not in t_network:
raise t_exceptions.ExternalNetPodNotSpecify()
if not t_network[az_ext.AZ_HINTS]:
raise t_exceptions.ExternalNetPodNotSpecify()
region_name = t_network[az_ext.AZ_HINTS][0]
b_router_id = db_api.get_bottom_id_by_top_id_region_name(
t_ctx, router_id, region_name, t_constants.RT_NS_ROUTER)
b_client = self._get_client(region_name)
b_client.action_routers(t_ctx, 'remove_gateway', b_router_id)
def update_router(self, context, router_id, router):
# TODO(zhiyuan) handle the case that SNAT is disabled
# and check if bridge network solution works with IPv6
router_data = copy.deepcopy(router['router'])
need_update_bottom = False
is_add = False
if validators.is_attr_set(router_data.get(l3.EXTERNAL_GW_INFO)):
need_update_bottom = True
ext_net_id = router_data[l3.EXTERNAL_GW_INFO].get('network_id')
if ext_net_id:
is_add = True
# TODO(zhiyuan) solve ip address conflict issue
# if user creates floating ip before set router gateway, we may trigger
# ip address conflict here. let's say external cidr is 163.3.124.0/24,
# creating floating ip before setting router gateway, the gateway ip
# will be 163.3.124.3 since 163.3.124.2 is used by floating ip, however
# in the bottom pod floating ip is not created when creating floating
# ip on top, so the gateway ip in the bottom pod is still 163.3.124.2,
# thus conflict may occur.
#
# before this issue is solved, user should set router gateway before
# create floating ip.
if not need_update_bottom:
return super(TricirclePlugin, self).update_router(
context, router_id, router)
if is_add:
ret = super(TricirclePlugin, self).update_router(
context, router_id, router)
router_data[l3.EXTERNAL_GW_INFO].update(ret[l3.EXTERNAL_GW_INFO])
self._add_router_gateway(context, router_id, router_data)
else:
self._remove_router_gateway(context, router_id)
ret = super(TricirclePlugin, self).update_router(
context, router_id, router)
t_ctx = t_context.get_context_from_neutron_context(context)
self.xjob_handler.configure_extra_routes(t_ctx, router_id)
return ret
def add_router_interface(self, context, router_id, interface_info):
t_ctx = t_context.get_context_from_neutron_context(context)
router = self._get_router(context, router_id)
project_id = router['tenant_id']
add_by_port, _ = self._validate_interface_info(interface_info)
net_id, b_pods = self._get_net_pods_by_interface_info(
t_ctx, context, add_by_port, interface_info)
t_pod = db_api.get_top_pod(t_ctx)
assert t_pod
# bridge network for E-W and N-S networking
pool_id = self._get_bridge_subnet_pool_id(
t_ctx, context, None, t_pod)
self._get_bridge_network_subnet(
t_ctx, context, project_id, t_pod, pool_id)
return_info = super(TricirclePlugin, self).add_router_interface(
context, router_id, interface_info)
if not b_pods:
LOG.debug('Add router interface: no interfaces found, xjob not'
'triggered')
return return_info
try:
if len(b_pods) == 1:
self.xjob_handler.setup_bottom_router(
t_ctx, net_id, router_id, b_pods[0]['pod_id'])
else:
self.xjob_handler.setup_bottom_router(
t_ctx, net_id, router_id, t_constants.POD_NOT_SPECIFIED)
except Exception:
# NOTE(zhiyuan) we fail to submit the job, so bottom router
# operations are not started, it's safe for us to remove the top
# router interface
super(TricirclePlugin, self).remove_router_interface(
context, router_id, interface_info)
raise
return return_info
def create_floatingip(self, context, floatingip):
# create bottom fip when associating fixed ip
return super(TricirclePlugin, self).create_floatingip(
context, floatingip,
initial_status=constants.FLOATINGIP_STATUS_DOWN)
def remove_router_interface(self, context, router_id, interface_info):
t_ctx = t_context.get_context_from_neutron_context(context)
add_by_port, _ = self._validate_interface_info(interface_info,
for_removal=True)
net_id, b_pods = self._get_net_pods_by_interface_info(
t_ctx, context, add_by_port, interface_info)
return_info = super(TricirclePlugin, self).remove_router_interface(
context, router_id, interface_info)
if not b_pods:
return return_info
try:
if len(b_pods) == 1:
self.xjob_handler.setup_bottom_router(
t_ctx, net_id, router_id, b_pods[0]['pod_id'])
else:
self.xjob_handler.setup_bottom_router(
t_ctx, net_id, router_id, t_constants.POD_NOT_SPECIFIED)
except Exception:
# NOTE(zhiyuan) we fail to submit the job, so if bottom router
# interface exists, it would not be deleted, then after we add
# the top interface again, the bottom router setup job will reuse
# the existing bottom interface.
#
# we don't create a routing entry between top interface and bottom
# interface, instead, when we create bottom subnet, we specify the
# ip of the top interface as the gateway ip of the bottom subnet.
# later when we attach the bottom subnet to bottom router, neutron
# server in bottom pod will create the bottom interface using the
# gateway ip automatically.
interface_info = {'subnet_id': return_info['subnet_id']}
super(TricirclePlugin, self).add_router_interface(
context, router_id, interface_info)
raise
return return_info
@staticmethod
def _safe_create_bottom_floatingip(t_ctx, pod, client, fip_net_id,
fip_address, port_id):
try:
client.create_floatingips(
t_ctx, {'floatingip': {'floating_network_id': fip_net_id,
'floating_ip_address': fip_address,
'port_id': port_id}})
except q_cli_exceptions.IpAddressInUseClient:
fips = client.list_floatingips(t_ctx,
[{'key': 'floating_ip_address',
'comparator': 'eq',
'value': fip_address}])
# NOTE(zhiyuan) if the internal port associated with the existing
# fip is what we expect, just ignore this exception; or if the
# existing fip is not associated with any internal port, update the
# fip to add association
if not fips:
# this is rare case that we got IpAddressInUseClient exception
# a second ago but now the floating ip is missing
raise t_network_exc.BottomPodOperationFailure(
resource='floating ip', region_name=pod['region_name'])
associated_port_id = fips[0].get('port_id')
if associated_port_id == port_id:
pass
elif not associated_port_id:
client.update_floatingips(t_ctx, fips[0]['id'],
{'floatingip': {'port_id': port_id}})
else:
raise
@staticmethod
def _rollback_floatingip_data(context, _id, org_data):
"""Rollback the data of floating ip object to the original one
:param context: request context
:param _id: ID of the floating ip
:param org_data: data of floating ip we rollback to
:return: None
"""
try:
with context.session.begin():
fip_qry = context.session.query(l3_db.FloatingIP)
floating_ips = fip_qry.filter_by(id=_id)
for floating_ip in floating_ips:
floating_ip.update(org_data)
except Exception as e:
# log the exception and re-raise it
LOG.exception(_LE('Fail to rollback floating ip data, reason: '
'%(reason)s') % {'reason': e.message})
raise
def update_floatingip(self, context, _id, floatingip):
"""Update floating ip object in top and bottom pods
:param context: request context
:param _id: ID of the floating ip
:param floatingip: data of floating ip we update to
:return: updated floating ip object
"""
org_floatingip_dict = self._make_floatingip_dict(
self._get_floatingip(context, _id))
res = super(TricirclePlugin, self).update_floatingip(
context, _id, floatingip)
try:
if floatingip['floatingip']['port_id']:
self._associate_floatingip(context, _id, floatingip)
else:
self._disassociate_floatingip(context, org_floatingip_dict)
return res
except Exception as e:
# NOTE(zhiyuan) when exception occurs, we update floating ip object
# to rollback fixed_port_id, fixed_ip_address, router_id
LOG.exception(
_LE('Fail to update floating ip, reason: '
'%(reason)s, rollback floating ip data') % {
'reason': e.message})
org_data = {
'fixed_port_id': org_floatingip_dict['port_id'],
'fixed_ip_address': org_floatingip_dict['fixed_ip_address'],
'router_id': org_floatingip_dict['router_id']}
self._rollback_floatingip_data(context, _id, org_data)
raise
def _associate_floatingip(self, context, _id, floatingip):
t_ctx = t_context.get_context_from_neutron_context(context)
fip = floatingip['floatingip']
floatingip_db = self._get_floatingip(context, _id)
int_port_id = fip['port_id']
mappings = db_api.get_bottom_mappings_by_top_id(
t_ctx, int_port_id, t_constants.RT_PORT)
if not mappings:
# mapping does not exist, meaning that the bottom port has not
# been created, we just return and leave the work to setup bottom
# floating ip to nova api gateway
return
int_net_pod, b_int_port_id = mappings[0]
int_port = self.get_port(context, int_port_id)
net_id = int_port['network_id']
self.xjob_handler.setup_bottom_router(
t_ctx, net_id, floatingip_db['router_id'], int_net_pod['pod_id'])
def _disassociate_floatingip(self, context, ori_floatingip_db):
if not ori_floatingip_db['port_id']:
# floating ip has not been associated with fixed ip, no
# operation in bottom pod needed
return
t_ctx = t_context.get_context_from_neutron_context(context)
t_int_port_id = ori_floatingip_db['port_id']
mappings = db_api.get_bottom_mappings_by_top_id(
t_ctx, t_int_port_id, t_constants.RT_PORT)
if not mappings:
# floating ip in top pod is associated but no mapping between
# top and bottom internal port, this is an inconsistent state,
# but since bottom internal port does not exist, no operation
# in bottom pod is required
LOG.warning(_LW('Internal port associated with floating ip '
'does not exist in bottom pod.'))
return
b_int_net_pod, b_int_port_id = mappings[0]
int_port = self.get_port(context, t_int_port_id)
net_id = int_port['network_id']
self.xjob_handler.setup_bottom_router(
t_ctx, net_id, ori_floatingip_db['router_id'],
b_int_net_pod['pod_id'])
def delete_floatingip(self, context, _id):
"""Disassociate floating ip if needed then delete it
:param context: request context
:param _id: ID of the floating ip
:return: None
"""
self.update_floatingip(context, _id, {'floatingip': {'port_id': None}})
super(TricirclePlugin, self).delete_floatingip(context, _id)