VIF driver for 802.1qbh and Quantum aware scheduler.
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Sumit Naiksatam
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# vim: tabstop=4 shiftwidth=4 softtabstop=4
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#
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# Copyright 2011 Cisco Systems, Inc. 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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# @author: Sumit Naiksatam, Cisco Systems, Inc.
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#
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"""
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# vim: tabstop=4 shiftwidth=4 softtabstop=4
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#
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# Copyright 2011 Cisco Systems, Inc. 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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# @author: Sumit Naiksatam, Cisco Systems, Inc.
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#
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"""
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from nova import flags
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from nova import log as logging
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from nova.scheduler import driver
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from quantum.client import Client
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from quantum.common.wsgi import Serializer
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LOG = logging.getLogger('nova.scheduler.quantum_aware_scheduler')
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FLAGS = flags.FLAGS
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flags.DEFINE_string('quantum_host', "127.0.0.1",
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'IP address of the quantum network service.')
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flags.DEFINE_integer('quantum_port', 9696,
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'Listening port for Quantum network service')
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HOST = FLAGS.quantum_host
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PORT = FLAGS.quantum_port
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USE_SSL = False
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TENANT_ID = 'nova'
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class QuantumScheduler(driver.Scheduler):
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"""
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Quantum network service dependent scheduler
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Obtains the hostname from Quantum using an extension API
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"""
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def schedule(self, context, topic, *_args, **_kwargs):
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"""Gets the host name from the Quantum service"""
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instance_id = _kwargs['instance_id']
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user_id = \
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_kwargs['request_spec']['instance_properties']['user_id']
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project_id = \
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_kwargs['request_spec']['instance_properties']['project_id']
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instance_data_dict = \
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{'novatenant': \
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{'instance-id': instance_id,
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'instance-desc': \
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{'user_id': user_id,
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'project_id': project_id
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}}}
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client = Client(HOST, PORT, USE_SSL)
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content_type = "application/" + "json"
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body = Serializer().serialize(instance_data_dict, content_type)
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request_url = "/novatenants/" + project_id + "/get_host.json"
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res = client.do_request(TENANT_ID, 'PUT', request_url, body=body)
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content = res.read()
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data = Serializer().deserialize(content, content_type)
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hostname = data["host_list"]["host_1"]
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if not hostname:
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raise driver.NoValidHost(_("Scheduler was unable to locate a host"
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" for this request. Is the appropriate"
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" service running?"))
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LOG.debug(_("Quantum service returned host: %s\n") % hostname)
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return hostname
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"""
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# vim: tabstop=4 shiftwidth=4 softtabstop=4
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# Copyright 2011 Cisco Systems, Inc. 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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# @author: Sumit Naiksatam, Cisco Systems, Inc.
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#
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"""
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"""VIF drivers for interface type direct."""
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from nova import flags
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from nova import log as logging
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from nova import utils
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from nova.network import linux_net
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from nova.virt.libvirt import netutils
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from nova.virt.vif import VIFDriver
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from quantum.client import Client
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from quantum.common.wsgi import Serializer
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LOG = logging.getLogger('nova.virt.libvirt.vif')
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FLAGS = flags.FLAGS
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flags.DEFINE_string('quantum_host', "127.0.0.1",
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'IP address of the quantum network service.')
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flags.DEFINE_integer('quantum_port', 9696,
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'Listening port for Quantum network service')
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HOST = FLAGS.quantum_host
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PORT = FLAGS.quantum_port
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USE_SSL = False
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TENANT_ID = 'nova'
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class Libvirt802dot1QbhDriver(VIFDriver):
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"""VIF driver for Linux bridge."""
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def _get_configurations(self, instance, network, mapping):
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"""Gets the device name and the profile name from Quantum"""
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instance_id = instance['id']
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user_id = instance['user_id']
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project_id = instance['project_id']
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instance_data_dict = \
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{'novatenant': \
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{'instance-id': instance_id,
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'instance-desc': \
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{'user_id': user_id,
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'project_id': project_id
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}}}
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client = Client(HOST, PORT, USE_SSL)
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content_type = "application/" + "json"
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body = Serializer().serialize(instance_data_dict, content_type)
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request_url = "/novatenants/" + project_id + "/get_instance_port.json"
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res = client.do_request(TENANT_ID, 'PUT', request_url, body=body)
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content = res.read()
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data = Serializer().deserialize(content, content_type)
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device = data['vif_desc']['device']
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portprofile = data['vif_desc']['portprofile']
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LOG.debug(_("Quantum returned device: %s\n") % device)
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LOG.debug(_("Quantum returned portprofile: %s\n") % portprofile)
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mac_id = mapping['mac'].replace(':', '')
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result = {
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'id': mac_id,
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'mac_address': mapping['mac'],
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'device_name': device,
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'profile_name': portprofile,
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}
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return result
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def plug(self, instance, network, mapping):
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return self._get_configurations(instance, network, mapping)
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def unplug(self, instance, network, mapping):
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pass
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