def plug(self, instance, vif):
"""Plug using hybrid strategy
Create a per-VIF linux bridge, then link that bridge to the OVS
integration bridge via a veth device, setting up the other end
of the veth device just like a normal OVS port. Then boot the
VIF on the linux bridge using standard libvirt mechanisms.
"""
iface_id = vif.ovs_interfaceid
br_name = vif.br_name
v1_name, v2_name = vif.veth_pair_names
if not linux_net.device_exists(br_name):
processutils.execute('sudo', 'brctl', 'addbr', br_name)
processutils.execute('sudo', 'brctl', 'setfd', br_name, 0)
processutils.execute('sudo', 'brctl', 'stp', br_name, 'off')
syspath = '/sys/class/net/%s/bridge/multicast_snooping'
syspath = syspath % br_name
processutils.execute('sudo', 'tee', syspath, process_input='0',
check_exit_code=[0, 1])
if not linux_net.device_exists(v2_name):
linux_net.create_veth_pair(v1_name, v2_name,
self.config.get('network_device_mtu'))
processutils.execute('sudo', 'ip', 'link', 'set',
br_name, 'up')
processutils.execute('sudo', 'brctl', 'addif',
br_name, v1_name)
linux_net.create_ivs_vif_port(v2_name, iface_id, vifaddress,
instance.uuid)
def unplug(self, vif):
"""UnPlug using hybrid strategy
Unhook port from OVS, unhook port from bridge, delete
bridge, and delete both veth devices.
"""
br_name = vif.br_name
v1_name, v2_name = vif.veth_pair_names
if linux_net.device_exists(br_name):
processutils.execute('sudo', 'brctl', 'delif', br_name, v1_name)
processutils.execute('sudo', 'ip', 'link', 'set', br_name, 'down')
processutils.execute('sudo', 'brctl', 'delbr', br_name)
linux_net.delete_ovs_vif_port(vif.bridge_name, v2_name)
def unplug(self, vif):
"""UnPlug using hybrid strategy
Unhook port from OVS, unhook port from bridge, delete
bridge, and delete both veth devices.
"""
br_name = vif.br_name
v1_name, v2_name = vif.veth_pair_names
if linux_net.device_exists(br_name):
processutils.execute('sudo', 'brctl', 'delif', br_name, v1_name)
processutils.execute('sudo', 'ip', 'link', 'set', br_name, 'down')
processutils.execute('sudo', 'brctl', 'delbr', br_name)
linux_net.delete_ovs_vif_port(vif.bridge_name, v2_name)
