deef3471cb
This is feature patch (3 of 3) that introduces support for transitioning existing NSX-based deployments from the agent based model of providing dhcp and metadata proxy services to the new agentless based mode. In 'combined' mode, existing networks will still be served by the existing infrastructure, whereas new networks will be served by the new infrastructure. Networks may be migrated to the model using a new CLI tool provided, called 'neutron-nsx-manage'. Currently the tool provides two admin-only commands: neutron-nsx-manage net-report <net-id-or-name> This will check that the network can be migrated and returns the resources currently in use. And: neutron-nsx-manage net-migrate <net-id-or-name> This will move the network over the new model and deallocate resources from the agent. Once a network has been migrated there is no turning back. Completes-blueprint nsx-integrated-services Change-Id: I37c9aa0e76124e1023899106406de7be6714c24d
131 lines
4.8 KiB
Python
131 lines
4.8 KiB
Python
# Copyright 2014 VMware, Inc.
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#
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# All Rights Reserved
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#
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# Licensed under the Apache License, Version 2.0 (the "License"); you may
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# not use this file except in compliance with the License. You may obtain
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# a copy of the License at
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#
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# http://www.apache.org/licenses/LICENSE-2.0
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#
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# Unless required by applicable law or agreed to in writing, software
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# distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
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# WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
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# License for the specific language governing permissions and limitations
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# under the License.
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#
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from sqlalchemy import Column
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from sqlalchemy import ForeignKey
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from sqlalchemy import orm
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from sqlalchemy import String
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from neutron.db import models_v2
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from neutron.openstack.common.db import exception as d_exc
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from neutron.openstack.common import log as logging
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from neutron.plugins.nicira.common import exceptions as p_exc
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LOG = logging.getLogger(__name__)
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class LsnPort(models_v2.model_base.BASEV2):
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__tablename__ = 'lsn_port'
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lsn_port_id = Column(String(36), primary_key=True)
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lsn_id = Column(String(36), ForeignKey('lsn.lsn_id', ondelete="CASCADE"))
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sub_id = Column(String(36), nullable=False, unique=True)
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mac_addr = Column(String(32), nullable=False, unique=True)
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def __init__(self, lsn_port_id, subnet_id, mac_address, lsn_id):
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self.lsn_port_id = lsn_port_id
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self.lsn_id = lsn_id
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self.sub_id = subnet_id
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self.mac_addr = mac_address
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class Lsn(models_v2.model_base.BASEV2):
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__tablename__ = 'lsn'
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lsn_id = Column(String(36), primary_key=True)
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net_id = Column(String(36), nullable=False)
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def __init__(self, net_id, lsn_id):
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self.net_id = net_id
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self.lsn_id = lsn_id
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def lsn_add(context, network_id, lsn_id):
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"""Add Logical Service Node information to persistent datastore."""
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with context.session.begin(subtransactions=True):
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lsn = Lsn(network_id, lsn_id)
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context.session.add(lsn)
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def lsn_remove(context, lsn_id):
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"""Remove Logical Service Node information from datastore given its id."""
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with context.session.begin(subtransactions=True):
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context.session.query(Lsn).filter_by(lsn_id=lsn_id).delete()
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def lsn_remove_for_network(context, network_id):
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"""Remove information about the Logical Service Node given its network."""
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with context.session.begin(subtransactions=True):
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context.session.query(Lsn).filter_by(net_id=network_id).delete()
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def lsn_get_for_network(context, network_id, raise_on_err=True):
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"""Retrieve LSN information given its network id."""
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query = context.session.query(Lsn)
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try:
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return query.filter_by(net_id=network_id).one()
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except (orm.exc.NoResultFound, d_exc.DBError):
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logger = raise_on_err and LOG.error or LOG.warn
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logger(_('Unable to find Logical Service Node for '
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'network %s'), network_id)
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if raise_on_err:
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raise p_exc.LsnNotFound(entity='network',
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entity_id=network_id)
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def lsn_port_add_for_lsn(context, lsn_port_id, subnet_id, mac, lsn_id):
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"""Add Logical Service Node Port information to persistent datastore."""
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with context.session.begin(subtransactions=True):
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lsn_port = LsnPort(lsn_port_id, subnet_id, mac, lsn_id)
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context.session.add(lsn_port)
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def lsn_port_get_for_subnet(context, subnet_id, raise_on_err=True):
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"""Return Logical Service Node Port information given its subnet id."""
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with context.session.begin(subtransactions=True):
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try:
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return (context.session.query(LsnPort).
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filter_by(sub_id=subnet_id).one())
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except (orm.exc.NoResultFound, d_exc.DBError):
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if raise_on_err:
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raise p_exc.LsnPortNotFound(lsn_id=None,
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entity='subnet',
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entity_id=subnet_id)
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def lsn_port_get_for_mac(context, mac_address, raise_on_err=True):
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"""Return Logical Service Node Port information given its mac address."""
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with context.session.begin(subtransactions=True):
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try:
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return (context.session.query(LsnPort).
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filter_by(mac_addr=mac_address).one())
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except (orm.exc.NoResultFound, d_exc.DBError):
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if raise_on_err:
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raise p_exc.LsnPortNotFound(lsn_id=None,
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entity='mac',
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entity_id=mac_address)
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def lsn_port_remove(context, lsn_port_id):
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"""Remove Logical Service Node port from the given Logical Service Node."""
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with context.session.begin(subtransactions=True):
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(context.session.query(LsnPort).
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filter_by(lsn_port_id=lsn_port_id).delete())
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