# -- Nova configuration (controller node)
-1) Make sure to set up nova using the quantum network manager in the
+1) Ensure that the quantum network manager is configured in the
nova.conf on the node that will be running nova-network.
---network_manager=nova.network.quantum.manager.QuantumManager
+network_manager=nova.network.quantum.manager.QuantumManager
# -- Nova configuration (compute node(s))
1) Configure the vif driver, and libvirt/vif type
---connection_type=libvirt
---libvirt_type=qemu
---libvirt_vif_type=ethernet
---libvirt_vif_driver=quantum.plugins.linuxbridge.nova.vif_linuxbridge_quantum.QuantumLibvirtLinuxBridgeVIFDriver
---linuxnet_interface_driver=quantum.plugins.linuxbridge.nova.linux_net_linux_bridge.QuantumLinuxBridgeInterfaceDriver
+connection_type=libvirt
+libvirt_type=qemu
+libvirt_vif_type=ethernet
+libvirt_vif_driver=nova.virt.libvirt.vif.QuantumLinuxBridgeVIFDriver
+linuxnet_interface_driver=nova.network.linux_net.QuantumLinuxBridgeInterfaceDriver
2) If you want a DHCP server to be run for the VMs to acquire IPs,
add the following flag to your nova.conf file:
---quantum_use_dhcp
+quantum_use_dhcp=true
(Note: For more details on how to work with Quantum using Nova, i.e. how to create networks and such,
please refer to the top level Quantum README which points to the relevant documentation.)
+++ /dev/null
-# vim: tabstop=4 shiftwidth=4 softtabstop=4
-#
-# Copyright 2012 Cisco Systems, Inc.
-# 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.
-#
-# Extends the linux_net.py kvm/linux network driver in Nova,
-# borrows structure and code
-# @author: Sumit Naiksatam, Cisco Systems, Inc.
-#
-
-
-"""Extends the linux_net driver when using the Linux Bridge plugin with
-QuantumManager"""
-
-
-from nova import exception
-from nova import log as logging
-from nova import utils
-
-from nova.network.linux_net import *
-
-
-LOG = logging.getLogger(__name__)
-
-
-BRDIGE_NAME_PREFIX = "brq"
-GATEWAY_INTERFACE_PREFIX = "gw-"
-
-
-def _device_exists(device):
- """Check if ethernet device exists."""
- (_out, err) = utils.execute('ip', 'link', 'show', 'dev', device,
- check_exit_code=False)
- return not err
-
-
-# plugs interfaces using Linux Bridge when using QuantumManager
-class QuantumLinuxBridgeInterfaceDriver(LinuxNetInterfaceDriver):
-
- def plug(self, network, mac_address, gateway=True):
- LOG.debug(_("inside plug()"))
- dev = self.get_dev(network)
- bridge = self.get_bridge(network)
- if not gateway:
- # If we weren't instructed to act as a gateway then add the
- # appropriate flows to block all non-dhcp traffic.
- # .. and make sure iptbles won't forward it as well.
- iptables_manager.ipv4['filter'].add_rule('FORWARD',
- '--in-interface %s -j DROP' % bridge)
- iptables_manager.ipv4['filter'].add_rule('FORWARD',
- '--out-interface %s -j DROP' % bridge)
- return bridge
- else:
- iptables_manager.ipv4['filter'].add_rule('FORWARD',
- '--in-interface %s -j ACCEPT' % bridge)
- iptables_manager.ipv4['filter'].add_rule('FORWARD',
- '--out-interface %s -j ACCEPT' % bridge)
-
- if not _device_exists(dev):
- try:
- # First, try with 'ip'
- utils.execute('ip', 'tuntap', 'add', dev, 'mode', 'tap',
- run_as_root=True)
- except exception.ProcessExecutionError:
- # Second option: tunctl
- utils.execute('tunctl', '-b', '-t', dev, run_as_root=True)
- utils.execute('ip', 'link', 'set', dev, "address", mac_address,
- run_as_root=True)
- utils.execute('ip', 'link', 'set', dev, 'up', run_as_root=True)
-
- if not _device_exists(bridge):
- LOG.debug(_("Starting bridge %s "), bridge)
- utils.execute('brctl', 'addbr', bridge, run_as_root=True)
- utils.execute('brctl', 'setfd', bridge, str(0), run_as_root=True)
- utils.execute('brctl', 'stp', bridge, 'off', run_as_root=True)
- utils.execute('ip', 'link', 'set', bridge, "address", mac_address,
- run_as_root=True)
- utils.execute('ip', 'link', 'set', bridge, 'up', run_as_root=True)
- LOG.debug(_("Done starting bridge %s"), bridge)
-
- full_ip = '%s/%s' % (network['dhcp_server'],
- network['cidr'].rpartition('/')[2])
- utils.execute('ip', 'address', 'add', full_ip, 'dev', bridge,
- run_as_root=True)
-
- return dev
-
- def unplug(self, network):
- LOG.debug(_("inside unplug()"))
- dev = self.get_dev(network)
- try:
- utils.execute('ip', 'link', 'delete', dev, run_as_root=True)
- except exception.ProcessExecutionError:
- LOG.warning(_("Failed while unplugging gateway interface '%s'"),
- dev)
- raise
- LOG.debug(_("Unplugged gateway interface '%s'"), dev)
- return dev
-
- def get_dev(self, network):
- dev = GATEWAY_INTERFACE_PREFIX + str(network['uuid'][0:11])
- return dev
-
- def get_bridge(self, network):
- bridge = BRDIGE_NAME_PREFIX + str(network['uuid'][0:11])
- return bridge
+++ /dev/null
-# vim: tabstop=4 shiftwidth=4 softtabstop=4
-#
-# Copyright (C) 2012 Midokura KK
-# Copyright (C) 2012 Nicira, Inc
-# Copyright (C) 2012 Cisco Systems, Inc
-# Copyright 2012 OpenStack LLC.
-# 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.
-
-"""
-VIF driver for libvirt when QuantumManager is configured with Linux Bridge
-plugin
-"""
-
-from nova import flags
-from nova import log as logging
-from nova.network import linux_net
-from nova.virt import netutils
-from nova import utils
-from nova.virt.vif import VIFDriver
-from nova import exception
-
-LOG = logging.getLogger(__name__)
-
-FLAGS = flags.FLAGS
-
-
-class QuantumLibvirtLinuxBridgeVIFDriver(VIFDriver):
- """VIF driver for Linux Bridge."""
-
- def get_dev_name(_self, iface_id):
- return "tap" + iface_id[0:11]
-
- def plug(self, instance, network, mapping):
- iface_id = mapping['vif_uuid']
- dev = self.get_dev_name(iface_id)
- if not linux_net._device_exists(dev):
- try:
- # First, try with 'ip'
- utils.execute('ip', 'tuntap', 'add', dev, 'mode', 'tap',
- run_as_root=True)
- except exception.ProcessExecutionError:
- # Second option: tunctl
- utils.execute('tunctl', '-b', '-t', dev, run_as_root=True)
- utils.execute('ip', 'link', 'set', dev, 'up', run_as_root=True)
-
- result = {
- 'script': '',
- 'name': dev,
- 'mac_address': mapping['mac']}
- return result
-
- def unplug(self, instance, network, mapping):
- """Unplug the VIF from the network by deleting the port from
- the bridge."""
- dev = self.get_dev_name(mapping['vif_uuid'])
- try:
- utils.execute('ip', 'link', 'delete', dev, run_as_root=True)
- except exception.ProcessExecutionError:
- LOG.warning(_("Failed while unplugging vif of instance '%s'"),
- instance['name'])
- raise
Code Review / openstack-build / neutron-build.git / commitdiff