Skip to main content

A library for plugging and unplugging virtual interfaces in OpenStack.

Project description

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...

Project details


Download files

Download the file for your platform. If you're not sure which to choose, learn more about installing packages.

Source Distribution

os_vif-1.2.1.tar.gz (41.0 kB view hashes)

Uploaded Source

Built Distribution

os_vif-1.2.1-py2-none-any.whl (52.0 kB view hashes)

Uploaded Python 2

Supported by

AWS AWS Cloud computing and Security Sponsor Datadog Datadog Monitoring Fastly Fastly CDN Google Google Download Analytics Microsoft Microsoft PSF Sponsor Pingdom Pingdom Monitoring Sentry Sentry Error logging StatusPage StatusPage Status page