def unplug(self, instance, network, mapping):
dev = self.get_dev_name(mapping["vif_uuid"])
client = VIFINFOClient(FLAGS.quantum_host, FLAGS.quantum_port)
client.delete_vifinfo(mapping["vif_uuid"])
try:
utils.execute("ovs-vsctl", "del-port", FLAGS.libvirt_ovs_bridge, dev, run_as_root=True)
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
