danwent@gmail.com
120 lines
4.8 KiB
Python
120 lines
4.8 KiB
Python
# vim: tabstop=4 shiftwidth=4 softtabstop=4
|
|
|
|
# Copyright 2011 Nicira Networks
|
|
# 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.
|
|
|
|
from nova import flags
|
|
from nova import log as logging
|
|
from nova.network.quantum import client as quantum_client
|
|
from nova import utils
|
|
|
|
|
|
LOG = logging.getLogger("nova.network.quantum")
|
|
FLAGS = flags.FLAGS
|
|
|
|
flags.DEFINE_string('quantum_connection_host',
|
|
'127.0.0.1',
|
|
'HOST for connecting to quantum')
|
|
|
|
flags.DEFINE_string('quantum_connection_port',
|
|
'9696',
|
|
'PORT for connecting to quantum')
|
|
|
|
flags.DEFINE_string('quantum_default_tenant_id',
|
|
"default",
|
|
'Default tenant id when creating quantum networks')
|
|
|
|
|
|
class QuantumClientConnection:
|
|
""" Abstracts connection to Quantum service into higher level
|
|
operations performed by the QuantumManager.
|
|
|
|
Separating this out as a class also let's us create a 'fake'
|
|
version of this class for unit tests.
|
|
"""
|
|
|
|
def __init__(self):
|
|
""" Initialize Quantum client class based on flags. """
|
|
self.client = quantum_client.Client(FLAGS.quantum_connection_host,
|
|
FLAGS.quantum_connection_port,
|
|
format="json",
|
|
logger=LOG)
|
|
|
|
def create_network(self, tenant_id, network_name):
|
|
""" Create network using specified name, return Quantum
|
|
network UUID.
|
|
"""
|
|
data = {'network': {'name': network_name}}
|
|
resdict = self.client.create_network(data, tenant=tenant_id)
|
|
return resdict["network"]["id"]
|
|
|
|
def delete_network(self, tenant_id, net_id):
|
|
""" Deletes Quantum network with specified UUID. """
|
|
self.client.delete_network(net_id, tenant=tenant_id)
|
|
|
|
def network_exists(self, tenant_id, net_id):
|
|
""" Determine if a Quantum network exists for the
|
|
specified tenant.
|
|
"""
|
|
try:
|
|
self.client.show_network_details(net_id, tenant=tenant_id)
|
|
except:
|
|
# FIXME: (danwent) client lib should expose granular exceptions
|
|
# so we can confirm we're getting a 404 and not some other error
|
|
return False
|
|
return True
|
|
|
|
def create_and_attach_port(self, tenant_id, net_id, interface_id):
|
|
""" Creates a Quantum port on the specified network, sets
|
|
status to ACTIVE to enable traffic, and attaches the
|
|
vNIC with the specified interface-id.
|
|
"""
|
|
LOG.debug("Connecting interface %s to net %s for %s" % \
|
|
(interface_id, net_id, tenant_id))
|
|
port_data = {'port': {'state': 'ACTIVE'}}
|
|
resdict = self.client.create_port(net_id, port_data, tenant=tenant_id)
|
|
port_id = resdict["port"]["id"]
|
|
|
|
attach_data = {'attachment': {'id': interface_id}}
|
|
self.client.attach_resource(net_id, port_id, attach_data,
|
|
tenant=tenant_id)
|
|
|
|
def detach_and_delete_port(self, tenant_id, net_id, port_id):
|
|
""" Detach and delete the specified Quantum port. """
|
|
LOG.debug("Deleting port %s on net %s for %s" % \
|
|
(port_id, net_id, tenant_id))
|
|
|
|
self.client.detach_resource(net_id, port_id, tenant=tenant_id)
|
|
self.client.delete_port(net_id, port_id, tenant=tenant_id)
|
|
|
|
def get_port_by_attachment(self, tenant_id, attachment_id):
|
|
""" Given a tenant, search for the Quantum network and port
|
|
UUID that has the specified interface-id attachment.
|
|
"""
|
|
# FIXME: (danwent) this will be inefficient until the Quantum
|
|
# API implements querying a port by the interface-id
|
|
net_list_resdict = self.client.list_networks(tenant=tenant_id)
|
|
for n in net_list_resdict["networks"]:
|
|
net_id = n['id']
|
|
port_list_resdict = self.client.list_ports(net_id,
|
|
tenant=tenant_id)
|
|
for p in port_list_resdict["ports"]:
|
|
port_id = p["id"]
|
|
port_get_resdict = self.client.show_port_attachment(net_id,
|
|
port_id, tenant=tenant_id)
|
|
if attachment_id == port_get_resdict["attachment"]["id"]:
|
|
return (net_id, port_id)
|
|
return (None, None)
|