5dac3f4a4c
Support DHCP relay by configuring the relay service per network availability zone, or globally. When a router interface port is created, the relay service will be added to it. DHCP traffic on the subnet will go through the DHCP server configured in the dhcp relay service on the NSX, if it is connected to the router. Also add admin utility to update exsiting router ports when the dhcp relay configuration changes. A future patch will take care of firewall rules allowint the dhcp traffic. Change-Id: I626b3377e71c269600a47b3bd805eed9d58bad82
204 lines
8.5 KiB
Python
204 lines
8.5 KiB
Python
# Copyright 2017 VMware, 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 oslo_config import cfg
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from vmware_nsx._i18n import _
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from vmware_nsx.common import availability_zones as common_az
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from vmware_nsx.common import config
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from vmware_nsx.common import exceptions as nsx_exc
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from vmware_nsxlib.v3 import core_resources
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from vmware_nsxlib.v3 import nsx_constants as nsxlib_consts
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DEFAULT_NAME = common_az.DEFAULT_NAME
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class NsxV3AvailabilityZone(common_az.ConfiguredAvailabilityZone):
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def init_from_config_line(self, config_line):
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# Not supported for nsx_v3 (old configuration)
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raise nsx_exc.NsxInvalidConfiguration(
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opt_name="availability_zones",
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opt_value=config_line,
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reason=_("Expected a list of names"))
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def init_from_config_section(self, az_name):
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az_info = config.get_nsxv3_az_opts(self.name)
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# The optional parameters will get the global values if not
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# defined for this AZ
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self.metadata_proxy = az_info.get('metadata_proxy')
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if not self.metadata_proxy:
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raise nsx_exc.NsxInvalidConfiguration(
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opt_name="metadata_proxy",
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opt_value='None',
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reason=(_("metadata_proxy for availability zone %s "
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"must be defined") % az_name))
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self.dhcp_profile = az_info.get('dhcp_profile')
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if not self.dhcp_profile:
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raise nsx_exc.NsxInvalidConfiguration(
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opt_name="dhcp_profile",
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opt_value='None',
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reason=(_("dhcp_profile for availability zone %s "
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"must be defined") % az_name))
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self.native_metadata_route = az_info.get('native_metadata_route')
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if self.native_metadata_route is None:
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self.native_metadata_route = cfg.CONF.nsx_v3.native_metadata_route
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self.dns_domain = az_info.get('dns_domain')
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if self.dns_domain is None:
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self.dns_domain = cfg.CONF.nsx_v3.dns_domain
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self.nameservers = az_info.get('nameservers')
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if self.nameservers is None:
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self.nameservers = cfg.CONF.nsx_v3.nameservers
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self.default_overlay_tz = az_info.get('default_overlay_tz')
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if self.default_overlay_tz is None:
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self.default_overlay_tz = cfg.CONF.nsx_v3.default_overlay_tz
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self.default_vlan_tz = az_info.get('default_vlan_tz')
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if self.default_vlan_tz is None:
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self.default_vlan_tz = cfg.CONF.nsx_v3.default_vlan_tz
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self.switching_profiles = az_info.get('switching_profiles')
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if self.switching_profiles is None:
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self.switching_profiles = cfg.CONF.nsx_v3.switching_profiles
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self.dhcp_relay_service = az_info.get('dhcp_relay_service')
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if self.dhcp_relay_service is None:
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self.dhcp_relay_service = cfg.CONF.nsx_v3.dhcp_relay_service
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def init_default_az(self):
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# use the default configuration
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self.metadata_proxy = cfg.CONF.nsx_v3.metadata_proxy
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self.dhcp_profile = cfg.CONF.nsx_v3.dhcp_profile
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self.native_metadata_route = cfg.CONF.nsx_v3.native_metadata_route
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self.dns_domain = cfg.CONF.nsx_v3.dns_domain
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self.nameservers = cfg.CONF.nsx_v3.nameservers
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self.default_overlay_tz = cfg.CONF.nsx_v3.default_overlay_tz
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self.default_vlan_tz = cfg.CONF.nsx_v3.default_vlan_tz
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self.switching_profiles = cfg.CONF.nsx_v3.switching_profiles
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self.dhcp_relay_service = cfg.CONF.nsx_v3.dhcp_relay_service
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def translate_configured_names_to_uuids(self, nsxlib):
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# Mandatory configurations (in AZ or inherited from global values)
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# Unless this is the default AZ, and metadata is disabled.
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if self.dhcp_profile:
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dhcp_id = None
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if cfg.CONF.nsx_v3.init_objects_by_tags:
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# Find the TZ by its tag
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dhcp_id = nsxlib.get_id_by_resource_and_tag(
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nsxlib.native_dhcp_profile.resource_type,
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cfg.CONF.nsx_v3.search_objects_scope,
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self.dhcp_profile)
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if not dhcp_id:
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dhcp_id = nsxlib.native_dhcp_profile.get_id_by_name_or_id(
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self.dhcp_profile)
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self._native_dhcp_profile_uuid = dhcp_id
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else:
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self._native_dhcp_profile_uuid = None
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if self.metadata_proxy:
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proxy_id = None
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if cfg.CONF.nsx_v3.init_objects_by_tags:
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# Find the TZ by its tag
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proxy_id = nsxlib.get_id_by_resource_and_tag(
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nsxlib.native_md_proxy.resource_type,
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cfg.CONF.nsx_v3.search_objects_scope,
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self.metadata_proxy)
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if not proxy_id:
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proxy_id = nsxlib.native_md_proxy.get_id_by_name_or_id(
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self.metadata_proxy)
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self._native_md_proxy_uuid = proxy_id
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else:
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self._native_md_proxy_uuid = None
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if self.default_overlay_tz:
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tz_id = None
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if cfg.CONF.nsx_v3.init_objects_by_tags:
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# Find the TZ by its tag
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resource_type = (nsxlib.transport_zone.resource_type +
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' AND transport_type:OVERLAY')
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tz_id = nsxlib.get_id_by_resource_and_tag(
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resource_type,
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cfg.CONF.nsx_v3.search_objects_scope,
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self.default_overlay_tz)
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if not tz_id:
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# Find the TZ by its name or id
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tz_id = nsxlib.transport_zone.get_id_by_name_or_id(
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self.default_overlay_tz)
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self._default_overlay_tz_uuid = tz_id
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else:
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self._default_overlay_tz_uuid = None
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# Optional configurations (may be None)
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if self.default_vlan_tz:
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tz_id = None
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if cfg.CONF.nsx_v3.init_objects_by_tags:
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# Find the TZ by its tag
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resource_type = (nsxlib.transport_zone.resource_type +
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' AND transport_type:VLAN')
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tz_id = nsxlib.get_id_by_resource_and_tag(
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resource_type,
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cfg.CONF.nsx_v3.search_objects_scope,
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self.default_vlan_tz)
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if not tz_id:
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# Find the TZ by its name or id
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tz_id = nsxlib.transport_zone.get_id_by_name_or_id(
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self.default_vlan_tz)
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self._default_vlan_tz_uuid = tz_id
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else:
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self._default_vlan_tz_uuid = None
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# switching profiles are already uuids, but we need to translate
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# those to objects
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profiles = []
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if self.switching_profiles:
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for profile in self.switching_profiles:
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nsx_profile = nsxlib.switching_profile.get(profile)
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# TODO(asarfaty): skip or alert on unsupported types
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profiles.append(core_resources.SwitchingProfileTypeId(
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nsx_profile.get('resource_type'),
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nsx_profile.get('id')))
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self.switching_profiles_objs = profiles
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if (self.dhcp_relay_service and
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nsxlib.feature_supported(nsxlib_consts.FEATURE_DHCP_RELAY)):
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relay_id = None
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if cfg.CONF.nsx_v3.init_objects_by_tags:
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# Find the TZ by its tag
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relay_id = nsxlib.get_id_by_resource_and_tag(
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nsxlib.relay_service.resource_type,
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cfg.CONF.nsx_v3.search_objects_scope,
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self.dhcp_relay_service)
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if not relay_id:
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# Find the service by its name or id
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relay_id = nsxlib.relay_service.get_id_by_name_or_id(
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self.dhcp_relay_service)
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self.dhcp_relay_service = relay_id
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else:
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self.dhcp_relay_service = None
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class NsxV3AvailabilityZones(common_az.ConfiguredAvailabilityZones):
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def __init__(self):
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super(NsxV3AvailabilityZones, self).__init__(
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cfg.CONF.nsx_v3.availability_zones,
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NsxV3AvailabilityZone)
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