125 lines
5.3 KiB
Python
125 lines
5.3 KiB
Python
# Copyright 2016 VMware, Inc. 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 neutron.callbacks import registry
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from neutron_lib import constants as const
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from oslo_config import cfg
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from oslo_log import log as logging
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from vmware_nsx._i18n import _LE, _LI
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from vmware_nsx.common import utils as nsx_utils
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from vmware_nsx.dhcp_meta import rpc as nsx_rpc
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from vmware_nsx.shell.admin.plugins.common import constants
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from vmware_nsx.shell.admin.plugins.common import formatters
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from vmware_nsx.shell.admin.plugins.common import utils as admin_utils
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from vmware_nsx.shell.admin.plugins.nsxv3.resources import utils
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import vmware_nsx.shell.resources as shell
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from vmware_nsxlib.v3 import nsx_constants
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from vmware_nsxlib.v3 import resources
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LOG = logging.getLogger(__name__)
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neutron_client = utils.NeutronDbClient()
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nsxlib = utils.get_connected_nsxlib()
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def _is_metadata_network(network):
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# If a Neutron network has only one subnet with 169.254.169.252/30 CIDR,
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# then it is an internal metadata network.
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if len(network['subnets']) == 1:
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subnet = neutron_client.get_subnet(network['subnets'][0])
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if subnet['cidr'] == nsx_rpc.METADATA_SUBNET_CIDR:
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return True
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return False
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@admin_utils.output_header
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def list_metadata_networks(resource, event, trigger, **kwargs):
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"""List Metadata networks in Neutron."""
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meta_networks = [network for network in neutron_client.get_networks()
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if _is_metadata_network(network)]
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LOG.info(formatters.output_formatter(constants.METADATA_PROXY,
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meta_networks,
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['id', 'name', 'subnets']))
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@admin_utils.output_header
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def nsx_update_metadata_proxy(resource, event, trigger, **kwargs):
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"""Update Metadata proxy for NSXv3 CrossHairs."""
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nsx_version = nsxlib.get_version()
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if not nsx_utils.is_nsx_version_1_1_0(nsx_version):
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LOG.error(_LE("This utility is not available for NSX version %s"),
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nsx_version)
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return
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metadata_proxy_uuid = None
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if kwargs.get('property'):
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properties = admin_utils.parse_multi_keyval_opt(kwargs['property'])
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metadata_proxy_uuid = properties.get('metadata_proxy_uuid')
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if not metadata_proxy_uuid:
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LOG.error(_LE("metadata_proxy_uuid is not defined"))
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return
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cfg.CONF.set_override('dhcp_agent_notification', False)
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cfg.CONF.set_override('native_dhcp_metadata', True, 'nsx_v3')
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cfg.CONF.set_override('metadata_proxy', metadata_proxy_uuid, 'nsx_v3')
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plugin = utils.NsxV3PluginWrapper()
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nsx_client = utils.get_nsxv3_client()
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port_resource = resources.LogicalPort(nsx_client)
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# For each Neutron network, check if it is an internal metadata network.
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# If yes, delete the network and associated router interface.
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# Otherwise, create a logical switch port with MD-Proxy attachment.
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for network in neutron_client.get_networks():
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if _is_metadata_network(network):
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# It is a metadata network, find the attached router,
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# remove the router interface and the network.
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filters = {'device_owner': const.ROUTER_INTERFACE_OWNERS,
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'fixed_ips': {
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'subnet_id': [network['subnets'][0]],
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'ip_address': [nsx_rpc.METADATA_GATEWAY_IP]}}
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ports = neutron_client.get_ports(filters=filters)
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if not ports:
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continue
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router_id = ports[0]['device_id']
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interface = {'subnet_id': network['subnets'][0]}
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plugin.remove_router_interface(router_id, interface)
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LOG.info(_LI("Removed metadata interface on router %s"), router_id)
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plugin.delete_network(network['id'])
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LOG.info(_LI("Removed metadata network %s"), network['id'])
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else:
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lswitch_id = neutron_client.net_id_to_lswitch_id(network['id'])
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if not lswitch_id:
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continue
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tags = nsxlib.build_v3_tags_payload(
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network, resource_type='os-neutron-net-id',
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project_name='admin')
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name = nsx_utils.get_name_and_uuid('%s-%s' % (
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'mdproxy', network['name'] or 'network'), network['id'])
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port_resource.create(
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lswitch_id, metadata_proxy_uuid, tags=tags, name=name,
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attachment_type=nsx_constants.ATTACHMENT_MDPROXY)
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LOG.info(_LI("Enabled native metadata proxy for network %s"),
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network['id'])
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registry.subscribe(list_metadata_networks,
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constants.METADATA_PROXY,
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shell.Operations.LIST.value)
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registry.subscribe(nsx_update_metadata_proxy,
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constants.METADATA_PROXY,
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shell.Operations.NSX_UPDATE.value)
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