Integration library between network (Neutron) and compute (Nova) providers
3f60c8e3f7
Instead of relying on root wrap, convert the openvswitch network code to use the privsep module to run privileged actions. Change-Id: I45208c683fadf97ebcc46e08e2cc9781ff6eedb0 |
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doc/source | ||
os_vif | ||
vif_plug_linux_bridge | ||
vif_plug_ovs | ||
.coveragerc | ||
.gitignore | ||
.gitreview | ||
.mailmap | ||
.testr.conf | ||
babel.cfg | ||
CONTRIBUTING.rst | ||
HACKING.rst | ||
LICENSE | ||
MANIFEST.in | ||
openstack-common.conf | ||
README.rst | ||
requirements.txt | ||
setup.cfg | ||
setup.py | ||
test-requirements.txt | ||
tox.ini |
os-vif
A library for plugging and unplugging virtual interfaces in OpenStack.
Features
- A base VIF plugin class that supplies a plug() and unplug() interface
- Versioned objects that represent a virtual interface and its components
Usage
The interface to the os_vif library is very simple. To begin using the library, first call the os_vif.initialize() function. This will load all installed plugins and register the object model:
import os_vif
os_vif.initialize()
Once the os_vif library is initialized, there are only two other library functions: os_vif.plug() and os_vif.unplug(). Both methods accept a single argument of type `os_vif.objects.VIF`:
import uuid
from nova import objects as nova_objects
from os_vif import exception as vif_exc
from os_vif import objects as vif_objects
from os_vif import vnic_types
instance_uuid = 'd7a730ca-3c28-49c3-8f26-4662b909fe8a'
instance = nova_objects.Instance.get_by_uuid(instance_uuid)
instance_info = vif_objects.InstanceInfo(
uuid=instance.uuid,
name=instance.name,
project_id=instance.project_id)
subnet = vif_objects.Subnet(cidr='192.168.1.0/24')
subnets = vif_objects.SubnetList([subnet])
network = vif_objects.Network(label='tenantnet',
subnets=subnets,
multi_host=False,
should_provide_vlan=False,
should_provide_bridge=False)
vif_uuid = uuid.uuid4()
vif = vif_objects.VIFVHostUser(id=vif_uuid,
address=None,
network=network,
plugin='vhostuser',
path='/path/to/socket',
mode=vif_objects.fields.VIFVHostUserMode.SERVER)
# Now do the actual plug operations to connect the VIF to
# the backing network interface.
try:
os_vif.plug(vif)
except vif_exc.PlugException as err:
# Handle the failure...
# If you are removing a virtual machine and its interfaces,
# you would use the unplug() operation:
try:
os_vif.unplug(vif)
except vif_exc.UnplugException as err:
# Handle the failure...