aaf0fef1ca
Bug #1073194 We use openstack common log to do logging. At the same time, we will use quantum logger as our top logger, so that all sub loggers will be set according to quantum.conf Change-Id: I5adf72e6031ad437e05c3521864a83757b3e7887
188 lines
7.2 KiB
Python
188 lines
7.2 KiB
Python
# Copyright (c) 2012 OpenStack, LLC.
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#
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# Licensed under the Apache License, Version 2.0 (the "License");
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# you may not use this file except in compliance with the License.
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# You may obtain 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,
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# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or
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# implied.
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# See the License for the specific language governing permissions and
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# limitations under the License.
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from sqlalchemy.orm import exc
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from quantum import context as quantum_context
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from quantum import manager
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from quantum.api.v2 import attributes
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from quantum.openstack.common import context
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from quantum.openstack.common import log as logging
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LOG = logging.getLogger(__name__)
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def augment_context(context):
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"""Augments RPC with additional attributes, so that plugin calls work."""
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return quantum_context.Context(context.user, None, is_admin=True,
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roles=['admin'])
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class DhcpRpcCallbackMixin(object):
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"""A mix-in that enable DHCP agent support in plugin implementations."""
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def get_active_networks(self, context, **kwargs):
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"""Retrieve and return a list of the active network ids."""
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host = kwargs.get('host')
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LOG.debug('Network list requested from %s', host)
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plugin = manager.QuantumManager.get_plugin()
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context = augment_context(context)
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filters = dict(admin_state_up=[True])
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return [net['id'] for net in
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plugin.get_networks(context, filters=filters)]
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def get_network_info(self, context, **kwargs):
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"""Retrieve and return a extended information about a network."""
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network_id = kwargs.get('network_id')
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context = augment_context(context)
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plugin = manager.QuantumManager.get_plugin()
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network = plugin.get_network(context, network_id)
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filters = dict(network_id=[network_id])
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network['subnets'] = plugin.get_subnets(context, filters=filters)
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network['ports'] = plugin.get_ports(context, filters=filters)
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return network
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def get_dhcp_port(self, context, **kwargs):
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"""Allocate a DHCP port for the host and return port information.
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This method will re-use an existing port if one already exists. When a
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port is re-used, the fixed_ip allocation will be updated to the current
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network state.
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"""
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host = kwargs.get('host')
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network_id = kwargs.get('network_id')
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device_id = kwargs.get('device_id')
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# There could be more than one dhcp server per network, so create
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# a device id that combines host and network ids
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LOG.debug('Port %s for %s requested from %s', device_id, network_id,
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host)
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context = augment_context(context)
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plugin = manager.QuantumManager.get_plugin()
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retval = None
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filters = dict(network_id=[network_id])
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subnets = dict([(s['id'], s) for s in
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plugin.get_subnets(context, filters=filters)])
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dhcp_enabled_subnet_ids = [s['id'] for s in
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subnets.values() if s['enable_dhcp']]
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try:
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filters = dict(network_id=[network_id], device_id=[device_id])
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ports = plugin.get_ports(context, filters=filters)
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if len(ports):
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# Ensure that fixed_ips cover all dhcp_enabled subnets.
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port = ports[0]
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for fixed_ip in port['fixed_ips']:
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if fixed_ip['subnet_id'] in dhcp_enabled_subnet_ids:
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dhcp_enabled_subnet_ids.remove(fixed_ip['subnet_id'])
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port['fixed_ips'].extend(
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[dict(subnet_id=s) for s in dhcp_enabled_subnet_ids])
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retval = plugin.update_port(context, port['id'],
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dict(port=port))
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except exc.NoResultFound:
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pass
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if retval is None:
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# No previous port exists, so create a new one.
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LOG.debug('DHCP port %s on network %s does not exist on %s',
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device_id, network_id, host)
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network = plugin.get_network(context, network_id)
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port_dict = dict(
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admin_state_up=True,
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device_id=device_id,
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network_id=network_id,
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tenant_id=network['tenant_id'],
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mac_address=attributes.ATTR_NOT_SPECIFIED,
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name='',
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device_owner='network:dhcp',
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fixed_ips=[dict(subnet_id=s) for s in dhcp_enabled_subnet_ids])
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retval = plugin.create_port(context, dict(port=port_dict))
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# Convert subnet_id to subnet dict
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for fixed_ip in retval['fixed_ips']:
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subnet_id = fixed_ip.pop('subnet_id')
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fixed_ip['subnet'] = subnets[subnet_id]
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return retval
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def release_dhcp_port(self, context, **kwargs):
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"""Release the port currently being used by a DHCP agent."""
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host = kwargs.get('host')
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network_id = kwargs.get('network_id')
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device_id = kwargs.get('device_id')
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LOG.debug('DHCP port deletion for %s d request from %s', network_id,
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host)
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context = augment_context(context)
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plugin = manager.QuantumManager.get_plugin()
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filters = dict(network_id=[network_id], device_id=[device_id])
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ports = plugin.get_ports(context, filters=filters)
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if len(ports):
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plugin.delete_port(context, ports[0]['id'])
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def release_port_fixed_ip(self, context, **kwargs):
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"""Release the fixed_ip associated the subnet on a port."""
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host = kwargs.get('host')
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network_id = kwargs.get('network_id')
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device_id = kwargs.get('device_id')
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subnet_id = kwargs.get('subnet_id')
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LOG.debug('DHCP port remove fixed_ip for %s d request from %s',
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subnet_id,
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host)
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context = augment_context(context)
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plugin = manager.QuantumManager.get_plugin()
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filters = dict(network_id=[network_id], device_id=[device_id])
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ports = plugin.get_ports(context, filters=filters)
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if len(ports):
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port = ports[0]
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fixed_ips = port.get('fixed_ips', [])
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for i in range(len(fixed_ips)):
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if fixed_ips[i]['subnet_id'] == subnet_id:
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del fixed_ips[i]
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break
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plugin.update_port(context, port['id'], dict(port=port))
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def update_lease_expiration(self, context, **kwargs):
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"""Release the fixed_ip associated the subnet on a port."""
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host = kwargs.get('host')
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network_id = kwargs.get('network_id')
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ip_address = kwargs.get('ip_address')
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lease_remaining = kwargs.get('lease_remaining')
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LOG.debug('Updating lease expiration for %s on network %s from %s.',
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ip_address, network_id, host)
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context = augment_context(context)
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plugin = manager.QuantumManager.get_plugin()
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plugin.update_fixed_ip_lease_expiration(context, network_id,
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ip_address, lease_remaining)
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