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OpenStack Study: plugin.py**** CubicPower OpenStack Study ****
# vim: tabstop=4 shiftwidth=4 softtabstop=4 # Copyright 2012 Big Switch Networks, Inc. # 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. # # @author: Mandeep Dhami, Big Switch Networks, Inc. # @author: Sumit Naiksatam, sumitnaiksatam@gmail.com, Big Switch Networks, Inc. """ Neutron REST Proxy Plug-in for Big Switch and FloodLight Controllers. NeutronRestProxy provides a generic neutron plugin that translates all plugin function calls to equivalent authenticated REST calls to a set of redundant external network controllers. It also keeps persistent store for all neutron state to allow for re-sync of the external controller(s), if required. The local state on the plugin also allows for local response and fast-fail semantics where it can be determined based on the local persistent store. Network controller specific code is decoupled from this plugin and expected to reside on the controller itself (via the REST interface). This allows for: - independent authentication and redundancy schemes between neutron and the network controller - independent upgrade/development cycles between neutron and the controller as it limits the proxy code upgrade requirement to neutron release cycle and the controller specific code upgrade requirement to controller code - ability to sync the controller with neutron for independent recovery/reset External REST API used by proxy is the same API as defined for neutron (JSON subset) with some additional parameters (gateway on network-create and macaddr on port-attach) on an additional PUT to do a bulk dump of all persistent data. """ import copy import httplib import re import eventlet from oslo.config import cfg from sqlalchemy.orm import exc as sqlexc from neutron.agent import securitygroups_rpc as sg_rpc from neutron.api import extensions as neutron_extensions from neutron.api.rpc.agentnotifiers import dhcp_rpc_agent_api from neutron.common import constants as const from neutron.common import exceptions from neutron.common import rpc as q_rpc from neutron.common import topics from neutron.common import utils from neutron import context as qcontext from neutron.db import agents_db from neutron.db import agentschedulers_db from neutron.db import allowedaddresspairs_db as addr_pair_db from neutron.db import api as db from neutron.db import db_base_plugin_v2 from neutron.db import dhcp_rpc_base from neutron.db import external_net_db from neutron.db import extradhcpopt_db from neutron.db import l3_db from neutron.db import models_v2 from neutron.db import securitygroups_db as sg_db from neutron.db import securitygroups_rpc_base as sg_rpc_base from neutron.extensions import allowedaddresspairs as addr_pair from neutron.extensions import external_net from neutron.extensions import extra_dhcp_opt as edo_ext from neutron.extensions import l3 from neutron.extensions import portbindings from neutron import manager from neutron.openstack.common import excutils from neutron.openstack.common import importutils from neutron.openstack.common import log as logging from neutron.openstack.common import rpc from neutron.plugins.bigswitch import config as pl_config from neutron.plugins.bigswitch.db import porttracker_db from neutron.plugins.bigswitch import extensions from neutron.plugins.bigswitch import routerrule_db from neutron.plugins.bigswitch import servermanager from neutron.plugins.bigswitch.version import version_string_with_vcs LOG = logging.getLogger(__name__) SYNTAX_ERROR_MESSAGE = _('Syntax error in server config file, aborting plugin') METADATA_SERVER_IP = '169.254.169.254'
**** CubicPower OpenStack Study **** class AgentNotifierApi(rpc.proxy.RpcProxy,
sg_rpc.SecurityGroupAgentRpcApiMixin): BASE_RPC_API_VERSION = '1.1'
**** CubicPower OpenStack Study **** def __init__(self, topic): super(AgentNotifierApi, self).__init__( topic=topic, default_version=self.BASE_RPC_API_VERSION) self.topic_port_update = topics.get_topic_name( topic, topics.PORT, topics.UPDATE)
**** CubicPower OpenStack Study **** def port_update(self, context, port): self.fanout_cast(context, self.make_msg('port_update', port=port), topic=self.topic_port_update)
**** CubicPower OpenStack Study **** class RestProxyCallbacks(sg_rpc_base.SecurityGroupServerRpcCallbackMixin,
dhcp_rpc_base.DhcpRpcCallbackMixin): RPC_API_VERSION = '1.1'
**** CubicPower OpenStack Study **** def create_rpc_dispatcher(self): return q_rpc.PluginRpcDispatcher([self, agents_db.AgentExtRpcCallback()])
**** CubicPower OpenStack Study **** def get_port_from_device(self, device): port_id = re.sub(r"^tap", "", device) port = self.get_port_and_sgs(port_id) if port: port['device'] = device return port
**** CubicPower OpenStack Study **** def get_port_and_sgs(self, port_id): """Get port from database with security group info.""" LOG.debug(_("get_port_and_sgs() called for port_id %s"), port_id) session = db.get_session() sg_binding_port = sg_db.SecurityGroupPortBinding.port_id with session.begin(subtransactions=True): query = session.query( models_v2.Port, sg_db.SecurityGroupPortBinding.security_group_id ) query = query.outerjoin(sg_db.SecurityGroupPortBinding, models_v2.Port.id == sg_binding_port) query = query.filter(models_v2.Port.id.startswith(port_id)) port_and_sgs = query.all() if not port_and_sgs: return port = port_and_sgs[0][0] plugin = manager.NeutronManager.get_plugin() port_dict = plugin._make_port_dict(port) port_dict['security_groups'] = [ sg_id for port_, sg_id in port_and_sgs if sg_id] port_dict['security_group_rules'] = [] port_dict['security_group_source_groups'] = [] port_dict['fixed_ips'] = [ip['ip_address'] for ip in port['fixed_ips']] return port_dict
**** CubicPower OpenStack Study **** class NeutronRestProxyV2Base(db_base_plugin_v2.NeutronDbPluginV2,
external_net_db.External_net_db_mixin,
routerrule_db.RouterRule_db_mixin): supported_extension_aliases = ["binding"] servers = None
**** CubicPower OpenStack Study **** def __init__(self, server_timeout=None): super(NeutronRestProxyV2Base, self).__init__() # This base class is not intended to be instantiated directly. # Extending class should set ServerPool. if not self.servers: LOG.warning(_("ServerPool not set!"))
**** CubicPower OpenStack Study **** def _get_all_data(self, get_ports=True, get_floating_ips=True, get_routers=True): admin_context = qcontext.get_admin_context() networks = [] all_networks = self.get_networks(admin_context) or [] for net in all_networks: mapped_network = self._get_mapped_network_with_subnets(net) flips_n_ports = {} if get_floating_ips: flips_n_ports = self._get_network_with_floatingips( mapped_network) if get_ports: ports = [] net_filter = {'network_id': [net.get('id')]} net_ports = self.get_ports(admin_context, filters=net_filter) or [] for port in net_ports: mapped_port = self._map_state_and_status(port) mapped_port['attachment'] = { 'id': port.get('device_id'), 'mac': port.get('mac_address'), } mapped_port = self._extend_port_dict_binding(admin_context, mapped_port) ports.append(mapped_port) flips_n_ports['ports'] = ports if flips_n_ports: networks.append(flips_n_ports) data = {'networks': networks} if get_routers: routers = [] all_routers = self.get_routers(admin_context) or [] for router in all_routers: interfaces = [] mapped_router = self._map_state_and_status(router) router_filter = { 'device_owner': [const.DEVICE_OWNER_ROUTER_INTF], 'device_id': [router.get('id')] } router_ports = self.get_ports(admin_context, filters=router_filter) or [] for port in router_ports: net_id = port.get('network_id') subnet_id = port['fixed_ips'][0]['subnet_id'] intf_details = self._get_router_intf_details(admin_context, net_id, subnet_id) interfaces.append(intf_details) mapped_router['interfaces'] = interfaces routers.append(mapped_router) data.update({'routers': routers}) return data
**** CubicPower OpenStack Study **** def _send_all_data(self, send_ports=True, send_floating_ips=True, send_routers=True, timeout=None, triggered_by_tenant=None): """Pushes all data to network ctrl (networks/ports, ports/attachments). This gives the controller an option to re-sync it's persistent store with neutron's current view of that data. """ data = self._get_all_data(send_ports, send_floating_ips, send_routers) data['triggered_by_tenant'] = triggered_by_tenant errstr = _("Unable to update remote topology: %s") return self.servers.rest_action('PUT', servermanager.TOPOLOGY_PATH, data, errstr, timeout=timeout)
**** CubicPower OpenStack Study **** def _get_network_with_floatingips(self, network, context=None): if context is None: context = qcontext.get_admin_context() net_id = network['id'] net_filter = {'floating_network_id': [net_id]} fl_ips = self.get_floatingips(context, filters=net_filter) or [] network['floatingips'] = fl_ips return network
**** CubicPower OpenStack Study **** def _get_all_subnets_json_for_network(self, net_id, context=None): if context is None: context = qcontext.get_admin_context() # start a sub-transaction to avoid breaking parent transactions with context.session.begin(subtransactions=True): subnets = self._get_subnets_by_network(context, net_id) subnets_details = [] if subnets: for subnet in subnets: subnet_dict = self._make_subnet_dict(subnet) mapped_subnet = self._map_state_and_status(subnet_dict) subnets_details.append(mapped_subnet) return subnets_details
**** CubicPower OpenStack Study **** def _get_mapped_network_with_subnets(self, network, context=None): # if context is not provided, admin context is used if context is None: context = qcontext.get_admin_context() network = self._map_state_and_status(network) subnets = self._get_all_subnets_json_for_network(network['id'], context) network['subnets'] = subnets for subnet in (subnets or []): if subnet['gateway_ip']: # FIX: For backward compatibility with wire protocol network['gateway'] = subnet['gateway_ip'] break else: network['gateway'] = '' network[external_net.EXTERNAL] = self._network_is_external( context, network['id']) # include ML2 segmentation types network['segmentation_types'] = getattr(self, "segmentation_types", "") return network
**** CubicPower OpenStack Study **** def _send_create_network(self, network, context=None): tenant_id = network['tenant_id'] mapped_network = self._get_mapped_network_with_subnets(network, context) self.servers.rest_create_network(tenant_id, mapped_network)
**** CubicPower OpenStack Study **** def _send_update_network(self, network, context=None): net_id = network['id'] tenant_id = network['tenant_id'] mapped_network = self._get_mapped_network_with_subnets(network, context) net_fl_ips = self._get_network_with_floatingips(mapped_network, context) self.servers.rest_update_network(tenant_id, net_id, net_fl_ips)
**** CubicPower OpenStack Study **** def _send_delete_network(self, network, context=None): net_id = network['id'] tenant_id = network['tenant_id'] self.servers.rest_delete_network(tenant_id, net_id)
**** CubicPower OpenStack Study **** def _map_state_and_status(self, resource): resource = copy.copy(resource) resource['state'] = ('UP' if resource.pop('admin_state_up', True) else 'DOWN') resource.pop('status', None) return resource
**** CubicPower OpenStack Study **** def _warn_on_state_status(self, resource): if resource.get('admin_state_up', True) is False: LOG.warning(_("Setting admin_state_up=False is not supported " "in this plugin version. Ignoring setting for " "resource: %s"), resource) if 'status' in resource: if resource['status'] != const.NET_STATUS_ACTIVE: LOG.warning(_("Operational status is internally set by the " "plugin. Ignoring setting status=%s."), resource['status'])
**** CubicPower OpenStack Study **** def _get_router_intf_details(self, context, intf_id, subnet_id): # we will use the network id as interface's id net_id = intf_id network = self.get_network(context, net_id) subnet = self.get_subnet(context, subnet_id) mapped_network = self._get_mapped_network_with_subnets(network) mapped_subnet = self._map_state_and_status(subnet) data = { 'id': intf_id, "network": mapped_network, "subnet": mapped_subnet } return data
**** CubicPower OpenStack Study **** def _extend_port_dict_binding(self, context, port): cfg_vif_type = cfg.CONF.NOVA.vif_type.lower() if not cfg_vif_type in (portbindings.VIF_TYPE_OVS, portbindings.VIF_TYPE_IVS): LOG.warning(_("Unrecognized vif_type in configuration " "[%s]. Defaulting to ovs."), cfg_vif_type) cfg_vif_type = portbindings.VIF_TYPE_OVS # In ML2, the host_id is already populated if portbindings.HOST_ID in port: hostid = port[portbindings.HOST_ID] else: hostid = porttracker_db.get_port_hostid(context, port['id']) if hostid: port[portbindings.HOST_ID] = hostid override = self._check_hostvif_override(hostid) if override: cfg_vif_type = override port[portbindings.VIF_TYPE] = cfg_vif_type port[portbindings.VIF_DETAILS] = { # TODO(rkukura): Replace with new VIF security details portbindings.CAP_PORT_FILTER: 'security-group' in self.supported_extension_aliases, portbindings.OVS_HYBRID_PLUG: True } return port
**** CubicPower OpenStack Study **** def _check_hostvif_override(self, hostid): for v in cfg.CONF.NOVA.vif_types: if hostid in getattr(cfg.CONF.NOVA, "node_override_vif_" + v, []): return v return False
**** CubicPower OpenStack Study **** def _get_port_net_tenantid(self, context, port): net = super(NeutronRestProxyV2Base, self).get_network(context, port["network_id"]) return net['tenant_id']
**** CubicPower OpenStack Study **** def async_port_create(self, tenant_id, net_id, port): try: self.servers.rest_create_port(tenant_id, net_id, port) except servermanager.RemoteRestError as e: # 404 should never be received on a port create unless # there are inconsistencies between the data in neutron # and the data in the backend. # Run a sync to get it consistent. if (cfg.CONF.RESTPROXY.auto_sync_on_failure and e.status == httplib.NOT_FOUND and servermanager.NXNETWORK in e.reason): LOG.error(_("Iconsistency with backend controller " "triggering full synchronization.")) # args depend on if we are operating in ML2 driver # or as the full plugin topoargs = self.servers.get_topo_function_args self._send_all_data( send_ports=topoargs['get_ports'], send_floating_ips=topoargs['get_floating_ips'], send_routers=topoargs['get_routers'], triggered_by_tenant=tenant_id ) # If the full sync worked, the port will be created # on the controller so it can be safely marked as active else: # Any errors that don't result in a successful auto-sync # require that the port be placed into the error state. LOG.error( _("NeutronRestProxyV2: Unable to create port: %s"), e) try: self._set_port_status(port['id'], const.PORT_STATUS_ERROR) except exceptions.PortNotFound: # If port is already gone from DB and there was an error # creating on the backend, everything is already consistent pass return new_status = (const.PORT_STATUS_ACTIVE if port['state'] == 'UP' else const.PORT_STATUS_DOWN) try: self._set_port_status(port['id'], new_status) except exceptions.PortNotFound: # This port was deleted before the create made it to the controller # so it now needs to be deleted since the normal delete request # would have deleted an non-existent port. self.servers.rest_delete_port(tenant_id, net_id, port['id']) # NOTE(kevinbenton): workaround for eventlet/mysql deadlock @utils.synchronized('bsn-port-barrier')
**** CubicPower OpenStack Study **** def _set_port_status(self, port_id, status): session = db.get_session() try: port = session.query(models_v2.Port).filter_by(id=port_id).one() port['status'] = status session.flush() except sqlexc.NoResultFound: raise exceptions.PortNotFound(port_id=port_id)
**** CubicPower OpenStack Study **** class NeutronRestProxyV2(NeutronRestProxyV2Base,
addr_pair_db.AllowedAddressPairsMixin,
extradhcpopt_db.ExtraDhcpOptMixin,
agentschedulers_db.DhcpAgentSchedulerDbMixin,
sg_rpc_base.SecurityGroupServerRpcMixin): _supported_extension_aliases = ["external-net", "router", "binding", "router_rules", "extra_dhcp_opt", "quotas", "dhcp_agent_scheduler", "agent", "security-group", "allowed-address-pairs"] @property
**** CubicPower OpenStack Study **** def supported_extension_aliases(self): if not hasattr(self, '_aliases'): aliases = self._supported_extension_aliases[:] sg_rpc.disable_security_group_extension_by_config(aliases) self._aliases = aliases return self._aliases
**** CubicPower OpenStack Study **** def __init__(self, server_timeout=None): super(NeutronRestProxyV2, self).__init__() LOG.info(_('NeutronRestProxy: Starting plugin. Version=%s'), version_string_with_vcs()) pl_config.register_config() self.evpool = eventlet.GreenPool(cfg.CONF.RESTPROXY.thread_pool_size) # Include the Big Switch Extensions path in the api_extensions neutron_extensions.append_api_extensions_path(extensions.__path__) self.add_meta_server_route = cfg.CONF.RESTPROXY.add_meta_server_route # init network ctrl connections self.servers = servermanager.ServerPool(server_timeout) self.servers.get_topo_function = self._get_all_data self.servers.get_topo_function_args = {'get_ports': True, 'get_floating_ips': True, 'get_routers': True} self.network_scheduler = importutils.import_object( cfg.CONF.network_scheduler_driver ) # setup rpc for security and DHCP agents self._setup_rpc() if cfg.CONF.RESTPROXY.sync_data: self._send_all_data() LOG.debug(_("NeutronRestProxyV2: initialization done"))
**** CubicPower OpenStack Study **** def _setup_rpc(self): self.conn = rpc.create_connection(new=True) self.topic = topics.PLUGIN self.notifier = AgentNotifierApi(topics.AGENT) # init dhcp agent support self._dhcp_agent_notifier = dhcp_rpc_agent_api.DhcpAgentNotifyAPI() self.agent_notifiers[const.AGENT_TYPE_DHCP] = ( self._dhcp_agent_notifier ) self.callbacks = RestProxyCallbacks() self.dispatcher = self.callbacks.create_rpc_dispatcher() self.conn.create_consumer(self.topic, self.dispatcher, fanout=False) # Consume from all consumers in a thread self.conn.consume_in_thread()
**** CubicPower OpenStack Study **** def create_network(self, context, network): """Create a network. Network represents an L2 network segment which can have a set of subnets and ports associated with it. :param context: neutron api request context :param network: dictionary describing the network :returns: a sequence of mappings with the following signature: { "id": UUID representing the network. "name": Human-readable name identifying the network. "tenant_id": Owner of network. NOTE: only admin user can specify a tenant_id other than its own. "admin_state_up": Sets admin state of network. if down, network does not forward packets. "status": Indicates whether network is currently operational (values are "ACTIVE", "DOWN", "BUILD", and "ERROR") "subnets": Subnets associated with this network. } :raises: RemoteRestError """ LOG.debug(_("NeutronRestProxyV2: create_network() called")) self._warn_on_state_status(network['network']) with context.session.begin(subtransactions=True): self._ensure_default_security_group( context, network['network']["tenant_id"] ) # create network in DB new_net = super(NeutronRestProxyV2, self).create_network(context, network) self._process_l3_create(context, new_net, network['network']) # create network on the network controller self._send_create_network(new_net, context) # return created network return new_net
**** CubicPower OpenStack Study **** def update_network(self, context, net_id, network): """Updates the properties of a particular Virtual Network. :param context: neutron api request context :param net_id: uuid of the network to update :param network: dictionary describing the updates :returns: a sequence of mappings with the following signature: { "id": UUID representing the network. "name": Human-readable name identifying the network. "tenant_id": Owner of network. NOTE: only admin user can specify a tenant_id other than its own. "admin_state_up": Sets admin state of network. if down, network does not forward packets. "status": Indicates whether network is currently operational (values are "ACTIVE", "DOWN", "BUILD", and "ERROR") "subnets": Subnets associated with this network. } :raises: exceptions.NetworkNotFound :raises: RemoteRestError """ LOG.debug(_("NeutronRestProxyV2.update_network() called")) self._warn_on_state_status(network['network']) session = context.session with session.begin(subtransactions=True): new_net = super(NeutronRestProxyV2, self).update_network( context, net_id, network) self._process_l3_update(context, new_net, network['network']) # update network on network controller self._send_update_network(new_net, context) return new_net # NOTE(kevinbenton): workaround for eventlet/mysql deadlock @utils.synchronized('bsn-port-barrier')
**** CubicPower OpenStack Study **** def delete_network(self, context, net_id): """Delete a network. :param context: neutron api request context :param id: UUID representing the network to delete. :returns: None :raises: exceptions.NetworkInUse :raises: exceptions.NetworkNotFound :raises: RemoteRestError """ LOG.debug(_("NeutronRestProxyV2: delete_network() called")) # Validate args orig_net = super(NeutronRestProxyV2, self).get_network(context, net_id) filter = {'network_id': [net_id]} ports = self.get_ports(context, filters=filter) # check if there are any tenant owned ports in-use auto_delete_port_owners = db_base_plugin_v2.AUTO_DELETE_PORT_OWNERS only_auto_del = all(p['device_owner'] in auto_delete_port_owners for p in ports) if not only_auto_del: raise exceptions.NetworkInUse(net_id=net_id) with context.session.begin(subtransactions=True): ret_val = super(NeutronRestProxyV2, self).delete_network(context, net_id) self._send_delete_network(orig_net, context) return ret_val
**** CubicPower OpenStack Study **** def create_port(self, context, port): """Create a port, which is a connection point of a device (e.g., a VM NIC) to attach to a L2 Neutron network. :param context: neutron api request context :param port: dictionary describing the port :returns: { "id": uuid represeting the port. "network_id": uuid of network. "tenant_id": tenant_id "mac_address": mac address to use on this port. "admin_state_up": Sets admin state of port. if down, port does not forward packets. "status": dicates whether port is currently operational (limit values to "ACTIVE", "DOWN", "BUILD", and "ERROR") "fixed_ips": list of subnet ID"s and IP addresses to be used on this port "device_id": identifies the device (e.g., virtual server) using this port. } :raises: exceptions.NetworkNotFound :raises: exceptions.StateInvalid :raises: RemoteRestError """ LOG.debug(_("NeutronRestProxyV2: create_port() called")) # Update DB in new session so exceptions rollback changes with context.session.begin(subtransactions=True): self._ensure_default_security_group_on_port(context, port) sgids = self._get_security_groups_on_port(context, port) # set port status to pending. updated after rest call completes port['port']['status'] = const.PORT_STATUS_BUILD dhcp_opts = port['port'].get(edo_ext.EXTRADHCPOPTS, []) new_port = super(NeutronRestProxyV2, self).create_port(context, port) self._process_port_create_security_group(context, new_port, sgids) if (portbindings.HOST_ID in port['port'] and 'id' in new_port): host_id = port['port'][portbindings.HOST_ID] porttracker_db.put_port_hostid(context, new_port['id'], host_id) new_port[addr_pair.ADDRESS_PAIRS] = ( self._process_create_allowed_address_pairs( context, new_port, port['port'].get(addr_pair.ADDRESS_PAIRS))) self._process_port_create_extra_dhcp_opts(context, new_port, dhcp_opts) new_port = self._extend_port_dict_binding(context, new_port) net = super(NeutronRestProxyV2, self).get_network(context, new_port["network_id"]) if self.add_meta_server_route: if new_port['device_owner'] == const.DEVICE_OWNER_DHCP: destination = METADATA_SERVER_IP + '/32' self._add_host_route(context, destination, new_port) # create on network ctrl mapped_port = self._map_state_and_status(new_port) self.evpool.spawn_n(self.async_port_create, net["tenant_id"], new_port["network_id"], mapped_port) self.notify_security_groups_member_updated(context, new_port) return new_port
**** CubicPower OpenStack Study **** def get_port(self, context, id, fields=None): with context.session.begin(subtransactions=True): port = super(NeutronRestProxyV2, self).get_port(context, id, fields) self._extend_port_dict_binding(context, port) return self._fields(port, fields)
**** CubicPower OpenStack Study **** def get_ports(self, context, filters=None, fields=None): with context.session.begin(subtransactions=True): ports = super(NeutronRestProxyV2, self).get_ports(context, filters, fields) for port in ports: self._extend_port_dict_binding(context, port) return [self._fields(port, fields) for port in ports]
**** CubicPower OpenStack Study **** def update_port(self, context, port_id, port): """Update values of a port. :param context: neutron api request context :param id: UUID representing the port to update. :param port: dictionary with keys indicating fields to update. :returns: a mapping sequence with the following signature: { "id": uuid represeting the port. "network_id": uuid of network. "tenant_id": tenant_id "mac_address": mac address to use on this port. "admin_state_up": sets admin state of port. if down, port does not forward packets. "status": dicates whether port is currently operational (limit values to "ACTIVE", "DOWN", "BUILD", and "ERROR") "fixed_ips": list of subnet ID's and IP addresses to be used on this port "device_id": identifies the device (e.g., virtual server) using this port. } :raises: exceptions.StateInvalid :raises: exceptions.PortNotFound :raises: RemoteRestError """ LOG.debug(_("NeutronRestProxyV2: update_port() called")) self._warn_on_state_status(port['port']) # Validate Args orig_port = super(NeutronRestProxyV2, self).get_port(context, port_id) with context.session.begin(subtransactions=True): # Update DB new_port = super(NeutronRestProxyV2, self).update_port(context, port_id, port) ctrl_update_required = False if addr_pair.ADDRESS_PAIRS in port['port']: ctrl_update_required |= ( self.update_address_pairs_on_port(context, port_id, port, orig_port, new_port)) if 'fixed_ips' in port['port']: self._check_fixed_ips_and_address_pairs_no_overlap( context, new_port) self._update_extra_dhcp_opts_on_port(context, port_id, port, new_port) old_host_id = porttracker_db.get_port_hostid(context, orig_port['id']) if (portbindings.HOST_ID in port['port'] and 'id' in new_port): host_id = port['port'][portbindings.HOST_ID] porttracker_db.put_port_hostid(context, new_port['id'], host_id) if old_host_id != host_id: ctrl_update_required = True if (new_port.get("device_id") != orig_port.get("device_id") and orig_port.get("device_id")): ctrl_update_required = True if ctrl_update_required: # tenant_id must come from network in case network is shared net_tenant_id = self._get_port_net_tenantid(context, new_port) new_port = self._extend_port_dict_binding(context, new_port) mapped_port = self._map_state_and_status(new_port) self.servers.rest_update_port(net_tenant_id, new_port["network_id"], mapped_port) agent_update_required = self.update_security_group_on_port( context, port_id, port, orig_port, new_port) agent_update_required |= self.is_security_group_member_updated( context, orig_port, new_port) # return new_port return new_port # NOTE(kevinbenton): workaround for eventlet/mysql deadlock @utils.synchronized('bsn-port-barrier')
**** CubicPower OpenStack Study **** def delete_port(self, context, port_id, l3_port_check=True): """Delete a port. :param context: neutron api request context :param id: UUID representing the port to delete. :raises: exceptions.PortInUse :raises: exceptions.PortNotFound :raises: exceptions.NetworkNotFound :raises: RemoteRestError """ LOG.debug(_("NeutronRestProxyV2: delete_port() called")) # if needed, check to see if this is a port owned by # and l3-router. If so, we should prevent deletion. if l3_port_check: self.prevent_l3_port_deletion(context, port_id) with context.session.begin(subtransactions=True): self.disassociate_floatingips(context, port_id) self._delete_port_security_group_bindings(context, port_id) port = super(NeutronRestProxyV2, self).get_port(context, port_id) # Tenant ID must come from network in case the network is shared tenid = self._get_port_net_tenantid(context, port) self._delete_port(context, port_id) self.servers.rest_delete_port(tenid, port['network_id'], port_id)
**** CubicPower OpenStack Study **** def create_subnet(self, context, subnet): LOG.debug(_("NeutronRestProxyV2: create_subnet() called")) self._warn_on_state_status(subnet['subnet']) with context.session.begin(subtransactions=True): # create subnet in DB new_subnet = super(NeutronRestProxyV2, self).create_subnet(context, subnet) net_id = new_subnet['network_id'] orig_net = super(NeutronRestProxyV2, self).get_network(context, net_id) # update network on network controller self._send_update_network(orig_net, context) return new_subnet
**** CubicPower OpenStack Study **** def update_subnet(self, context, id, subnet): LOG.debug(_("NeutronRestProxyV2: update_subnet() called")) self._warn_on_state_status(subnet['subnet']) with context.session.begin(subtransactions=True): # update subnet in DB new_subnet = super(NeutronRestProxyV2, self).update_subnet(context, id, subnet) net_id = new_subnet['network_id'] orig_net = super(NeutronRestProxyV2, self).get_network(context, net_id) # update network on network controller self._send_update_network(orig_net, context) return new_subnet # NOTE(kevinbenton): workaround for eventlet/mysql deadlock @utils.synchronized('bsn-port-barrier')
**** CubicPower OpenStack Study **** def delete_subnet(self, context, id): LOG.debug(_("NeutronRestProxyV2: delete_subnet() called")) orig_subnet = super(NeutronRestProxyV2, self).get_subnet(context, id) net_id = orig_subnet['network_id'] with context.session.begin(subtransactions=True): # delete subnet in DB super(NeutronRestProxyV2, self).delete_subnet(context, id) orig_net = super(NeutronRestProxyV2, self).get_network(context, net_id) # update network on network controller - exception will rollback self._send_update_network(orig_net, context)
**** CubicPower OpenStack Study **** def _get_tenant_default_router_rules(self, tenant): rules = cfg.CONF.ROUTER.tenant_default_router_rule defaultset = [] tenantset = [] for rule in rules: items = rule.split(':') if len(items) == 5: (tenantid, source, destination, action, nexthops) = items elif len(items) == 4: (tenantid, source, destination, action) = items nexthops = '' else: continue parsedrule = {'source': source, 'destination': destination, 'action': action, 'nexthops': nexthops.split(',')} if parsedrule['nexthops'][0] == '': parsedrule['nexthops'] = [] if tenantid == '*': defaultset.append(parsedrule) if tenantid == tenant: tenantset.append(parsedrule) if tenantset: return tenantset return defaultset
**** CubicPower OpenStack Study **** def create_router(self, context, router): LOG.debug(_("NeutronRestProxyV2: create_router() called")) self._warn_on_state_status(router['router']) tenant_id = self._get_tenant_id_for_create(context, router["router"]) # set default router rules rules = self._get_tenant_default_router_rules(tenant_id) router['router']['router_rules'] = rules with context.session.begin(subtransactions=True): # create router in DB new_router = super(NeutronRestProxyV2, self).create_router(context, router) mapped_router = self._map_state_and_status(new_router) self.servers.rest_create_router(tenant_id, mapped_router) # return created router return new_router
**** CubicPower OpenStack Study **** def update_router(self, context, router_id, router): LOG.debug(_("NeutronRestProxyV2.update_router() called")) self._warn_on_state_status(router['router']) orig_router = super(NeutronRestProxyV2, self).get_router(context, router_id) tenant_id = orig_router["tenant_id"] with context.session.begin(subtransactions=True): new_router = super(NeutronRestProxyV2, self).update_router(context, router_id, router) router = self._map_state_and_status(new_router) # update router on network controller self.servers.rest_update_router(tenant_id, router, router_id) # return updated router return new_router # NOTE(kevinbenton): workaround for eventlet/mysql deadlock. # delete_router ends up calling _delete_port instead of delete_port. @utils.synchronized('bsn-port-barrier')
**** CubicPower OpenStack Study **** def delete_router(self, context, router_id): LOG.debug(_("NeutronRestProxyV2: delete_router() called")) with context.session.begin(subtransactions=True): orig_router = self._get_router(context, router_id) tenant_id = orig_router["tenant_id"] # Ensure that the router is not used router_filter = {'router_id': [router_id]} fips = self.get_floatingips_count(context.elevated(), filters=router_filter) if fips: raise l3.RouterInUse(router_id=router_id) device_owner = l3_db.DEVICE_OWNER_ROUTER_INTF device_filter = {'device_id': [router_id], 'device_owner': [device_owner]} ports = self.get_ports_count(context.elevated(), filters=device_filter) if ports: raise l3.RouterInUse(router_id=router_id) ret_val = super(NeutronRestProxyV2, self).delete_router(context, router_id) # delete from network ctrl self.servers.rest_delete_router(tenant_id, router_id) return ret_val
**** CubicPower OpenStack Study **** def add_router_interface(self, context, router_id, interface_info): LOG.debug(_("NeutronRestProxyV2: add_router_interface() called")) # Validate args router = self._get_router(context, router_id) tenant_id = router['tenant_id'] with context.session.begin(subtransactions=True): # create interface in DB new_intf_info = super(NeutronRestProxyV2, self).add_router_interface(context, router_id, interface_info) port = self._get_port(context, new_intf_info['port_id']) net_id = port['network_id'] subnet_id = new_intf_info['subnet_id'] # we will use the port's network id as interface's id interface_id = net_id intf_details = self._get_router_intf_details(context, interface_id, subnet_id) # create interface on the network controller self.servers.rest_add_router_interface(tenant_id, router_id, intf_details) return new_intf_info
**** CubicPower OpenStack Study **** def remove_router_interface(self, context, router_id, interface_info): LOG.debug(_("NeutronRestProxyV2: remove_router_interface() called")) # Validate args router = self._get_router(context, router_id) tenant_id = router['tenant_id'] # we will first get the interface identifier before deleting in the DB if not interface_info: msg = _("Either subnet_id or port_id must be specified") raise exceptions.BadRequest(resource='router', msg=msg) if 'port_id' in interface_info: port = self._get_port(context, interface_info['port_id']) interface_id = port['network_id'] elif 'subnet_id' in interface_info: subnet = self._get_subnet(context, interface_info['subnet_id']) interface_id = subnet['network_id'] else: msg = _("Either subnet_id or port_id must be specified") raise exceptions.BadRequest(resource='router', msg=msg) with context.session.begin(subtransactions=True): # remove router in DB del_ret = super(NeutronRestProxyV2, self).remove_router_interface(context, router_id, interface_info) # create router on the network controller self.servers.rest_remove_router_interface(tenant_id, router_id, interface_id) return del_ret
**** CubicPower OpenStack Study **** def create_floatingip(self, context, floatingip): LOG.debug(_("NeutronRestProxyV2: create_floatingip() called")) with context.session.begin(subtransactions=True): # create floatingip in DB new_fl_ip = super(NeutronRestProxyV2, self).create_floatingip(context, floatingip) # create floatingip on the network controller try: if 'floatingip' in self.servers.get_capabilities(): self.servers.rest_create_floatingip( new_fl_ip['tenant_id'], new_fl_ip) else: self._send_floatingip_update(context) except servermanager.RemoteRestError as e: with excutils.save_and_reraise_exception(): LOG.error( _("NeutronRestProxyV2: Unable to create remote " "floating IP: %s"), e) # return created floating IP return new_fl_ip
**** CubicPower OpenStack Study **** def update_floatingip(self, context, id, floatingip): LOG.debug(_("NeutronRestProxyV2: update_floatingip() called")) with context.session.begin(subtransactions=True): # update floatingip in DB new_fl_ip = super(NeutronRestProxyV2, self).update_floatingip(context, id, floatingip) # update network on network controller if 'floatingip' in self.servers.get_capabilities(): self.servers.rest_update_floatingip(new_fl_ip['tenant_id'], new_fl_ip, id) else: self._send_floatingip_update(context) return new_fl_ip
**** CubicPower OpenStack Study **** def delete_floatingip(self, context, id): LOG.debug(_("NeutronRestProxyV2: delete_floatingip() called")) with context.session.begin(subtransactions=True): # delete floating IP in DB old_fip = super(NeutronRestProxyV2, self).get_floatingip(context, id) super(NeutronRestProxyV2, self).delete_floatingip(context, id) # update network on network controller if 'floatingip' in self.servers.get_capabilities(): self.servers.rest_delete_floatingip(old_fip['tenant_id'], id) else: self._send_floatingip_update(context)
**** CubicPower OpenStack Study **** def disassociate_floatingips(self, context, port_id): LOG.debug(_("NeutronRestProxyV2: diassociate_floatingips() called")) super(NeutronRestProxyV2, self).disassociate_floatingips(context, port_id) self._send_floatingip_update(context)
**** CubicPower OpenStack Study **** def _send_floatingip_update(self, context): try: ext_net_id = self.get_external_network_id(context) if ext_net_id: # Use the elevated state of the context for the ext_net query admin_context = context.elevated() ext_net = super(NeutronRestProxyV2, self).get_network(admin_context, ext_net_id) # update external network on network controller self._send_update_network(ext_net, admin_context) except exceptions.TooManyExternalNetworks: # get_external_network can raise errors when multiple external # networks are detected, which isn't supported by the Plugin LOG.error(_("NeutronRestProxyV2: too many external networks"))
**** CubicPower OpenStack Study **** def _add_host_route(self, context, destination, port): subnet = {} for fixed_ip in port['fixed_ips']: subnet_id = fixed_ip['subnet_id'] nexthop = fixed_ip['ip_address'] subnet['host_routes'] = [{'destination': destination, 'nexthop': nexthop}] updated_subnet = self.update_subnet(context, subnet_id, {'subnet': subnet}) payload = {'subnet': updated_subnet} self._dhcp_agent_notifier.notify(context, payload, 'subnet.update.end') LOG.debug(_("Adding host route: ")) LOG.debug(_("Destination:%(dst)s nexthop:%(next)s"), {'dst': destination, 'next': nexthop})
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