142 lines
5.2 KiB
Python
142 lines
5.2 KiB
Python
# Copyright (c) 2016 Mirantis, Inc.
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# 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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from kuryr.lib import constants as kl_const
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from neutronclient.common import exceptions as n_exc
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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 import config
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from kuryr_kubernetes import constants
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from kuryr_kubernetes.controller.drivers import base
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from kuryr_kubernetes import exceptions as k_exc
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from kuryr_kubernetes import os_vif_util as ovu
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LOG = logging.getLogger(__name__)
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class NeutronPodVIFDriver(base.PodVIFDriver):
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"""Manages normal Neutron ports to provide VIFs for Kubernetes Pods."""
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def request_vif(self, pod, project_id, subnets, security_groups):
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neutron = clients.get_neutron_client()
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rq = self._get_port_request(pod, project_id, subnets, security_groups)
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port = neutron.create_port(rq).get('port')
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vif_plugin = self._get_vif_plugin(port)
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return ovu.neutron_to_osvif_vif(vif_plugin, port, subnets)
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def request_vifs(self, pod, project_id, subnets, security_groups,
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num_ports):
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neutron = clients.get_neutron_client()
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rq = self._get_port_request(pod, project_id, subnets, security_groups,
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unbound=True)
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bulk_port_rq = {'ports': [rq for _ in range(num_ports)]}
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try:
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ports = neutron.create_port(bulk_port_rq).get('ports')
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except n_exc.NeutronClientException as ex:
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LOG.error("Error creating bulk ports: %s", bulk_port_rq)
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raise ex
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vif_plugin = self._get_vif_plugin(ports[0])
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# NOTE(ltomasbo): Due to the bug (1696051) on neutron bulk port
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# creation request returning the port objects without binding
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# information, an additional port show is performed to get the binding
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# information
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if vif_plugin == 'unbound':
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port_info = neutron.show_port(ports[0]['id']).get('port')
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vif_plugin = self._get_vif_plugin(port_info)
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vifs = []
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for port in ports:
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vif = ovu.neutron_to_osvif_vif(vif_plugin, port, subnets)
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vifs.append(vif)
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return vifs
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def release_vif(self, pod, vif):
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neutron = clients.get_neutron_client()
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try:
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neutron.delete_port(vif.id)
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except n_exc.PortNotFoundClient:
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LOG.debug('Unable to release port %s as it no longer exists.',
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vif.id)
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def activate_vif(self, pod, vif):
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if vif.active:
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return
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neutron = clients.get_neutron_client()
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port = neutron.show_port(vif.id).get('port')
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if port['status'] != kl_const.PORT_STATUS_ACTIVE:
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raise k_exc.ResourceNotReady(vif)
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vif.active = True
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def _get_port_request(self, pod, project_id, subnets, security_groups,
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unbound=False):
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port_req_body = {'project_id': project_id,
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'network_id': self._get_network_id(subnets),
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'fixed_ips': ovu.osvif_to_neutron_fixed_ips(subnets),
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'device_owner': kl_const.DEVICE_OWNER,
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'admin_state_up': True,
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'binding:host_id': self._get_host_id(pod)}
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# if unbound argument is set to true, it means the port requested
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# should not be bound and not associated to the pod. Thus the port dict
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# is filled with a generic name (constants.KURYR_PORT_NAME) if
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# port_debug is enabled, and without device_id
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if unbound and config.CONF.kubernetes.port_debug:
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port_req_body['name'] = constants.KURYR_PORT_NAME
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else:
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# only set the name if port_debug is enabled
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if config.CONF.kubernetes.port_debug:
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port_req_body['name'] = self._get_port_name(pod)
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port_req_body['device_id'] = self._get_device_id(pod)
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if security_groups:
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port_req_body['security_groups'] = security_groups
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return {'port': port_req_body}
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def _get_vif_plugin(self, port):
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return port.get('binding:vif_type')
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def _get_network_id(self, subnets):
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ids = ovu.osvif_to_neutron_network_ids(subnets)
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if len(ids) != 1:
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raise k_exc.IntegrityError(
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"Subnet mapping %(subnets)s is not valid: "
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"%(num_networks)s unique networks found" %
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{'subnets': subnets, 'num_networks': len(ids)})
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return ids[0]
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def _get_port_name(self, pod):
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return pod['metadata']['name']
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def _get_device_id(self, pod):
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return pod['metadata']['uid']
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def _get_host_id(self, pod):
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return pod['spec']['nodeName']
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