173 lines
6.3 KiB
Python
173 lines
6.3 KiB
Python
# vim: tabstop=4 shiftwidth=4 softtabstop=4
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#
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# Copyright 2012 Isaku Yamahata
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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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# @author: Isaku Yamahata
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import ConfigParser
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import logging as LOG
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import os
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from abc import ABCMeta, abstractmethod
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import quantum.db.api as db
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from quantum.api.api_common import OperationalStatus
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from quantum.common import exceptions as q_exc
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from quantum.manager import find_config
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from quantum.quantum_plugin_base import QuantumPluginBase
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LOG.getLogger(__name__)
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class OVSQuantumPluginDriverBase(object):
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"""
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Base class for OVS quantum plugin driver
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"""
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__metaclass__ = ABCMeta
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@abstractmethod
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def create_network(self, net):
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pass
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@abstractmethod
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def delete_network(self, net):
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pass
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class OVSQuantumPluginBase(QuantumPluginBase):
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"""
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Base class for OVS-based plugin which referes to a subclass of
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OVSQuantumPluginDriverBase which is defined above.
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Subclass of OVSQuantumPluginBase must set self.driver to a subclass of
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OVSQuantumPluginDriverBase.
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"""
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def __init__(self, conf_file, mod_file, configfile=None):
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super(OVSQuantumPluginBase, self).__init__()
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config = ConfigParser.ConfigParser()
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if configfile is None:
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if conf_file and os.path.exists(conf_file):
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configfile = conf_file
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else:
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configfile = find_config(os.path.abspath(
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os.path.dirname(mod_file)))
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if configfile is None:
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raise Exception("Configuration file \"%s\" doesn't exist" %
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(configfile))
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LOG.debug("Using configuration file: %s", configfile)
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config.read(configfile)
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LOG.debug("Config: %s", config)
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options = {"sql_connection": config.get("DATABASE", "sql_connection")}
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db.configure_db(options)
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self.config = config
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# Subclass must set self.driver to its own OVSQuantumPluginDriverBase
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self.driver = None
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def get_all_networks(self, tenant_id, **kwargs):
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nets = []
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for net in db.network_list(tenant_id):
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LOG.debug("Adding network: %s", net.uuid)
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nets.append(self._make_net_dict(str(net.uuid), net.name,
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None, net.op_status))
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return nets
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def _make_net_dict(self, net_id, net_name, ports, op_status):
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res = {'net-id': net_id,
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'net-name': net_name,
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'net-op-status': op_status}
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if ports:
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res['net-ports'] = ports
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return res
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def create_network(self, tenant_id, net_name, **kwargs):
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net = db.network_create(tenant_id, net_name,
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op_status=OperationalStatus.UP)
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LOG.debug("Created network: %s", net)
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self.driver.create_network(net)
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return self._make_net_dict(str(net.uuid), net.name, [], net.op_status)
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def delete_network(self, tenant_id, net_id):
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net = db.network_get(net_id)
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# Verify that no attachments are plugged into the network
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for port in db.port_list(net_id):
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if port.interface_id:
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raise q_exc.NetworkInUse(net_id=net_id)
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net = db.network_destroy(net_id)
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self.driver.delete_network(net)
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return self._make_net_dict(str(net.uuid), net.name, [], net.op_status)
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def get_network_details(self, tenant_id, net_id):
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net = db.network_get(net_id)
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ports = self.get_all_ports(tenant_id, net_id)
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return self._make_net_dict(str(net.uuid), net.name,
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ports, net.op_status)
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def update_network(self, tenant_id, net_id, **kwargs):
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net = db.network_update(net_id, tenant_id, **kwargs)
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return self._make_net_dict(str(net.uuid), net.name,
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None, net.op_status)
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def _make_port_dict(self, port):
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if port.state == "ACTIVE":
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op_status = port.op_status
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else:
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op_status = OperationalStatus.DOWN
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return {'port-id': str(port.uuid),
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'port-state': port.state,
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'port-op-status': op_status,
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'net-id': port.network_id,
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'attachment': port.interface_id}
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def get_all_ports(self, tenant_id, net_id, **kwargs):
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ports = db.port_list(net_id)
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# This plugin does not perform filtering at the moment
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return [{'port-id': str(port.uuid)} for port in ports]
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def create_port(self, tenant_id, net_id, port_state=None, **kwargs):
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LOG.debug("Creating port with network_id: %s", net_id)
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port = db.port_create(net_id, port_state,
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op_status=OperationalStatus.DOWN)
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return self._make_port_dict(port)
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def delete_port(self, tenant_id, net_id, port_id):
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port = db.port_destroy(port_id, net_id)
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return self._make_port_dict(port)
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def update_port(self, tenant_id, net_id, port_id, **kwargs):
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"""
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Updates the state of a port on the specified Virtual Network.
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"""
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LOG.debug("update_port() called\n")
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port = db.port_get(port_id, net_id)
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db.port_update(port_id, net_id, **kwargs)
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return self._make_port_dict(port)
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def get_port_details(self, tenant_id, net_id, port_id):
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port = db.port_get(port_id, net_id)
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return self._make_port_dict(port)
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def plug_interface(self, tenant_id, net_id, port_id, remote_iface_id):
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db.port_set_attachment(port_id, net_id, remote_iface_id)
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def unplug_interface(self, tenant_id, net_id, port_id):
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db.port_set_attachment(port_id, net_id, "")
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db.port_update(port_id, net_id, op_status=OperationalStatus.DOWN)
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def get_interface_details(self, tenant_id, net_id, port_id):
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res = db.port_get(port_id, net_id)
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return res.interface_id
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