kuryr-kubernetes/kuryr_kubernetes/cni/binding/nested.py

53 lines
2.1 KiB
Python

# All Rights Reserved.
#
# Licensed under the Apache License, Version 2.0 (the "License"); you may
# not use this file except in compliance with the License. You may obtain
# a copy of the License at
#
# http://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or agreed to in writing, software
# distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
# WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
# License for the specific language governing permissions and limitations
# under the License.
# from kuryr.lib import constants
# from kuryr.lib import utils
from kuryr_kubernetes.cni.binding import base as b_base
from kuryr_kubernetes import config
class VlanDriver(object):
def connect(self, vif, ifname, netns):
h_ipdb = b_base.get_ipdb()
c_ipdb = b_base.get_ipdb(netns)
# NOTE(vikasc): Ideally 'ifname' should be used here but instead a
# temporary name is being used while creating the device for container
# in host network namespace. This is because cni expects only 'eth0'
# as interface name and if host already has an interface named 'eth0',
# device creation will fail with 'already exists' error.
temp_name = vif.vif_name
# TODO(vikasc): evaluate whether we should have stevedore
# driver for getting the link device.
vm_iface_name = config.CONF.binding.link_iface
vlan_id = vif.vlan_id
with h_ipdb.create(ifname=temp_name,
link=h_ipdb.interfaces[vm_iface_name],
kind='vlan', vlan_id=vlan_id) as iface:
iface.net_ns_fd = netns
with c_ipdb.interfaces[temp_name] as iface:
iface.ifname = ifname
iface.mtu = vif.network.mtu
iface.address = str(vif.address)
iface.up()
def disconnect(self, vif, ifname, netns):
# NOTE(vikasc): device will get deleted with container namespace, so
# nothing to be done here.
pass