4b329c345c
This patch adds the common framework to be used by specific implementations of the DHCPv6 protocol for Prefix Delegation. It also includes a reference implementation based on the Dibbler DHCPv6 client. Dibbler version 1.0.1 or greater is required. Sanity tests are included to verify the installed version. A patch for admin/user documentation is up for review here: https://review.openstack.org/#/c/178739 Video guides for configuring and using this feature are available on YouTube: https://www.youtube.com/watch?v=wI830s881HQ https://www.youtube.com/watch?v=zfsFyS01Fn0 Co-Authored-By: Baodong (Robert) Li <baoli@cisco.com> Co-Authored-By: Sam Betts <sam@code-smash.net> Change-Id: Id94acbbe96c717f68f318b2d715dd9cb9cc7fe4f Implements: blueprint ipv6-prefix-delegation
102 lines
5.4 KiB
Python
102 lines
5.4 KiB
Python
# Copyright (c) 2015 OpenStack Foundation.
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#
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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 neutron.common import constants
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OPTS = [
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cfg.StrOpt('agent_mode', default=constants.L3_AGENT_MODE_LEGACY,
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choices=(constants.L3_AGENT_MODE_DVR,
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constants.L3_AGENT_MODE_DVR_SNAT,
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constants.L3_AGENT_MODE_LEGACY),
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help=_("The working mode for the agent. Allowed modes are: "
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"'legacy' - this preserves the existing behavior "
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"where the L3 agent is deployed on a centralized "
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"networking node to provide L3 services like DNAT, "
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"and SNAT. Use this mode if you do not want to "
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"adopt DVR. 'dvr' - this mode enables DVR "
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"functionality and must be used for an L3 agent "
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"that runs on a compute host. 'dvr_snat' - this "
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"enables centralized SNAT support in conjunction "
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"with DVR. This mode must be used for an L3 agent "
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"running on a centralized node (or in single-host "
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"deployments, e.g. devstack)")),
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cfg.StrOpt('external_network_bridge', default='br-ex',
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help=_("Name of bridge used for external network "
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"traffic.")),
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cfg.IntOpt('metadata_port',
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default=9697,
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help=_("TCP Port used by Neutron metadata namespace "
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"proxy.")),
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cfg.IntOpt('send_arp_for_ha',
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default=3,
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help=_("Send this many gratuitous ARPs for HA setup, if "
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"less than or equal to 0, the feature is disabled")),
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cfg.StrOpt('router_id', default='',
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help=_("If namespaces is disabled, the l3 agent can only"
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" configure a router that has the matching router "
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"ID.")),
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cfg.BoolOpt('handle_internal_only_routers',
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default=True,
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help=_("Agent should implement routers with no gateway")),
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cfg.StrOpt('gateway_external_network_id', default='',
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help=_("UUID of external network for routers implemented "
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"by the agents.")),
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cfg.StrOpt('ipv6_gateway', default='',
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help=_("With IPv6, the network used for the external gateway "
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"does not need to have an associated subnet, since the "
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"automatically assigned link-local address (LLA) can "
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"be used. However, an IPv6 gateway address is needed "
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"for use as the next-hop for the default route. "
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"If no IPv6 gateway address is configured here, "
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"(and only then) the neutron router will be configured "
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"to get its default route from router advertisements "
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"(RAs) from the upstream router; in which case the "
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"upstream router must also be configured to send "
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"these RAs. "
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"The ipv6_gateway, when configured, should be the LLA "
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"of the interface on the upstream router. If a "
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"next-hop using a global unique address (GUA) is "
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"desired, it needs to be done via a subnet allocated "
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"to the network and not through this parameter. ")),
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cfg.StrOpt('prefix_delegation_driver',
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default='dibbler',
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help=_('Driver used for ipv6 prefix delegation. This needs to '
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'be an entry point defined in the '
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'neutron.agent.linux.pd_drivers namespace. See '
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'setup.cfg for entry points included with the neutron '
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'source.')),
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cfg.BoolOpt('enable_metadata_proxy', default=True,
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help=_("Allow running metadata proxy.")),
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cfg.BoolOpt('router_delete_namespaces', default=True,
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help=_("Delete namespace after removing a router."
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"This option is deprecated and "
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"will be removed in a future release."),
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deprecated_for_removal=True),
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cfg.StrOpt('metadata_access_mark',
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default='0x1',
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help=_('Iptables mangle mark used to mark metadata valid '
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'requests. This mark will be masked with 0xffff so '
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'that only the lower 16 bits will be used.')),
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cfg.StrOpt('external_ingress_mark',
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default='0x2',
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help=_('Iptables mangle mark used to mark ingress from '
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'external network. This mark will be masked with '
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'0xffff so that only the lower 16 bits will be used.')),
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]
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