0478a47502
container_id is necessary for VHostUserDriver, binding driver writes its configuration to file which contains part of container id, to be able to distinguish conf files inside containers (for case when vhostuser socket dir mounted to several pods). Partially-Implements: support-vhost-user-port-type-on-bm-installation Change-Id: I328585dc6d596371d8511a3cb5ccef907d955c76 Signed-off-by: Alexey Perevalov <a.perevalov@samsung.com>
87 lines
3.0 KiB
Python
87 lines
3.0 KiB
Python
# All Rights Reserved.
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#
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# Licensed under the Apache License, Version 2.0 (the "License"); you may
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# not use this file except in compliance with the License. You may obtain
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# a copy of the License at
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#
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# http://www.apache.org/licenses/LICENSE-2.0
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#
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# Unless required by applicable law or agreed to in writing, software
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# distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
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# WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
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# License for the specific language governing permissions and limitations
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# under the License.
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import abc
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import six
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from kuryr_kubernetes.cni.binding import base as b_base
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from kuryr_kubernetes import config
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from kuryr_kubernetes.handlers import health
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from kuryr_kubernetes import utils
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VLAN_KIND = 'vlan'
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MACVLAN_KIND = 'macvlan'
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MACVLAN_MODE_BRIDGE = 'bridge'
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@six.add_metaclass(abc.ABCMeta)
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class NestedDriver(health.HealthHandler, b_base.BaseBindingDriver):
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def __init__(self):
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super(NestedDriver, self).__init__()
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@abc.abstractmethod
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def _get_iface_create_args(self, vif):
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raise NotImplementedError()
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def connect(self, vif, ifname, netns, container_id):
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with b_base.get_ipdb() as h_ipdb:
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# NOTE(vikasc): Ideally 'ifname' should be used here but instead a
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# temporary name is being used while creating the device for
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# container in host network namespace. This is because cni expects
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# only 'eth0' as interface name and if host already has an
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# interface named 'eth0', device creation will fail with 'already
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# exists' error.
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temp_name = vif.vif_name
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# TODO(vikasc): evaluate whether we should have stevedore
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# driver for getting the link device.
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vm_iface_name = config.CONF.binding.link_iface
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args = self._get_iface_create_args(vif)
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with h_ipdb.create(ifname=temp_name,
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link=h_ipdb.interfaces[vm_iface_name],
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**args) as iface:
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iface.net_ns_fd = utils.convert_netns(netns)
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with b_base.get_ipdb(netns) as c_ipdb:
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with c_ipdb.interfaces[temp_name] as iface:
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iface.ifname = ifname
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iface.mtu = vif.network.mtu
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iface.address = str(vif.address)
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iface.up()
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def disconnect(self, vif, ifname, netns, container_id):
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# NOTE(vikasc): device will get deleted with container namespace, so
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# nothing to be done here.
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pass
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class VlanDriver(NestedDriver):
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def __init__(self):
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super(VlanDriver, self).__init__()
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def _get_iface_create_args(self, vif):
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return {'kind': VLAN_KIND, 'vlan_id': vif.vlan_id}
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class MacvlanDriver(NestedDriver):
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def __init__(self):
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super(MacvlanDriver, self).__init__()
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def _get_iface_create_args(self, vif):
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return {'kind': MACVLAN_KIND, 'macvlan_mode': MACVLAN_MODE_BRIDGE}
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