abc39b0e68
In order to have more control over the nodes subnets we expect instead of relying on static configuration option it's better to have flexibility. This commit introduces NodesSubnetsDriver model that will allow writing more complicated drivers providing the worker_nodes_subnets setting. A use case in mind is to use OpenShift Machine Custom Resources in order to discover subnets the nodes are using. Change-Id: I0eb5d9ad50895151967c23d3ad6d1237cc4d9667
76 lines
2.7 KiB
Python
76 lines
2.7 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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from kuryr.lib import exceptions as kl_exc
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from openstack import exceptions as os_exc
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from oslo_config import cfg as oslo_cfg
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from oslo_log import log as logging
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from kuryr_kubernetes import clients
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from kuryr_kubernetes.controller.drivers import base
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from kuryr_kubernetes.controller.drivers import neutron_vif
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CONF = oslo_cfg.CONF
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LOG = logging.getLogger(__name__)
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class NestedPodVIFDriver(neutron_vif.NeutronPodVIFDriver,
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metaclass=abc.ABCMeta):
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"""Skeletal handler driver for VIFs for Nested Pods."""
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def __init__(self):
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super().__init__()
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self.nodes_subnets_driver = base.NodesSubnetsDriver.get_instance()
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def _get_parent_port_by_host_ip(self, node_fixed_ip):
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os_net = clients.get_network_client()
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node_subnet_ids = self.nodes_subnets_driver.get_nodes_subnets(
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raise_on_empty=True)
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fixed_ips = ['ip_address=%s' % str(node_fixed_ip)]
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filters = {'fixed_ips': fixed_ips}
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tags = CONF.neutron_defaults.resource_tags
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if tags:
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filters['tags'] = tags
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try:
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ports = os_net.ports(**filters)
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except os_exc.SDKException:
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LOG.error("Parent VM port with fixed IPs %s not found!", fixed_ips)
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raise
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for port in ports:
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for fip in port.fixed_ips:
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if fip.get('subnet_id') in node_subnet_ids:
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return port
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LOG.error("Neutron port for VM port with fixed IPs %s not found!",
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fixed_ips)
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raise kl_exc.NoResourceException()
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def _get_parent_port(self, pod):
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try:
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# REVISIT(vikasc): Assumption is being made that hostIP is the IP
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# of trunk interface on the node(vm).
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node_fixed_ip = pod['status']['hostIP']
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except KeyError:
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if pod['status']['conditions'][0]['type'] != "Initialized":
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LOG.debug("Pod condition type is not 'Initialized'")
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LOG.error("Failed to get parent vm port ip")
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raise
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return self._get_parent_port_by_host_ip(node_fixed_ip)
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