kuryr-kubernetes/kuryr_kubernetes/controller/drivers/nested_vif.py

77 lines
2.7 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.
import abc
import six
from kuryr.lib._i18n import _
from kuryr.lib import exceptions as kl_exc
from neutronclient.common import exceptions as n_exc
from oslo_config import cfg as oslo_cfg
from oslo_log import log as logging
from kuryr_kubernetes.controller.drivers import neutron_vif
LOG = logging.getLogger(__name__)
# Moved out from neutron_defaults group
nested_vif_driver_opts = [
oslo_cfg.StrOpt('worker_nodes_subnet',
help=_("Neutron subnet ID for k8s worker node vms.")),
]
oslo_cfg.CONF.register_opts(nested_vif_driver_opts, "pod_vif_nested")
@six.add_metaclass(abc.ABCMeta)
class NestedPodVIFDriver(neutron_vif.NeutronPodVIFDriver):
"""Skeletal handler driver for VIFs for Nested Pods."""
def _get_parent_port_by_host_ip(self, neutron, node_fixed_ip):
node_subnet_id = oslo_cfg.CONF.pod_vif_nested.worker_nodes_subnet
if not node_subnet_id:
raise oslo_cfg.RequiredOptError('worker_nodes_subnet',
oslo_cfg.OptGroup('pod_vif_nested'))
try:
fixed_ips = ['subnet_id=%s' % str(node_subnet_id),
'ip_address=%s' % str(node_fixed_ip)]
ports = neutron.list_ports(fixed_ips=fixed_ips)
except n_exc.NeutronClientException as ex:
LOG.error("Parent vm port with fixed ips %s not found!",
fixed_ips)
raise ex
if ports['ports']:
return ports['ports'][0]
else:
LOG.error("Neutron port for vm port with fixed ips %s"
" not found!", fixed_ips)
raise kl_exc.NoResourceException
def _get_parent_port(self, neutron, pod):
try:
# REVISIT(vikasc): Assumption is being made that hostIP is the IP
# of trunk interface on the node(vm).
node_fixed_ip = pod['status']['hostIP']
except KeyError:
if pod['status']['conditions'][0]['type'] != "Initialized":
LOG.debug("Pod condition type is not 'Initialized'")
LOG.error("Failed to get parent vm port ip")
raise
return self._get_parent_port_by_host_ip(neutron, node_fixed_ip)