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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...
Release History

Release History

1.3.0

This version

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1.2.1

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1.2.0

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1.1.0

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1.0.0

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0.1

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Download Files

Download Files

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File Name & Checksum SHA256 Checksum Help Version File Type Upload Date
os_vif-1.3.0-py2-none-any.whl (52.8 kB) Copy SHA256 Checksum SHA256 py2 Wheel Nov 1, 2016
os_vif-1.3.0.tar.gz (44.4 kB) Copy SHA256 Checksum SHA256 Source Nov 1, 2016

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