3f0c618cfd
This patch adds HA support for DVR centralized default SNAT
functionality to Neutron Server. For the agent side changes
another patch has been merged.
Salient changes here are:
- Schedule/de-schedule SNAT on multiple agents
- Enables
'router-create <router name> --ha True --distributed True'
Closes-bug: #1365473
Co-Authored-By: Adolfo Duarte <adolfo.duarte@hpe.com>
Co-Authored-By: Hardik Italia <hardik.italia@hpe.com>
Co-Authored-By: John Schwarz <jschwarz@redhat.com>
Co-Authored-By: Oleg Bondarev <obondarev@mirantis.com>
Change-Id: I6a19481d0e19b8a55f32199a27057bf777548b33
119 lines
4.0 KiB
Python
119 lines
4.0 KiB
Python
# Copyright (C) 2014 eNovance SAS <licensing@enovance.com>
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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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#
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from neutron._i18n import _
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from neutron.api import extensions
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from neutron.api.v2 import attributes
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from neutron.common import constants
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from neutron.common import exceptions
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HA_INFO = 'ha'
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EXTENDED_ATTRIBUTES_2_0 = {
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'routers': {
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HA_INFO: {'allow_post': True, 'allow_put': True,
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'default': attributes.ATTR_NOT_SPECIFIED, 'is_visible': True,
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'enforce_policy': True,
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'convert_to': attributes.convert_to_boolean_if_not_none}
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}
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}
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class HAmodeUpdateOfDvrNotSupported(NotImplementedError):
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message = _("Currently update of HA mode for a distributed router is "
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"not supported.")
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class DVRmodeUpdateOfHaNotSupported(NotImplementedError):
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message = _("Currently update of distributed mode for an HA router is "
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"not supported.")
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class HAmodeUpdateOfDvrHaNotSupported(NotImplementedError):
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message = _("Currently update of HA mode for a DVR/HA router is "
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"not supported.")
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class DVRmodeUpdateOfDvrHaNotSupported(NotImplementedError):
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message = _("Currently update of distributed mode for a DVR/HA router "
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"is not supported")
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class UpdateToDvrHamodeNotSupported(NotImplementedError):
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message = _("Currently updating a router to DVR/HA is not supported.")
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class UpdateToNonDvrHamodeNotSupported(NotImplementedError):
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message = _("Currently updating a router from DVR/HA to non-DVR "
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" non-HA is not supported.")
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class MaxVRIDAllocationTriesReached(exceptions.NeutronException):
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message = _("Failed to allocate a VRID in the network %(network_id)s "
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"for the router %(router_id)s after %(max_tries)s tries.")
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class NoVRIDAvailable(exceptions.Conflict):
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message = _("No more Virtual Router Identifier (VRID) available when "
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"creating router %(router_id)s. The limit of number "
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"of HA Routers per tenant is 254.")
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class HANetworkCIDRNotValid(exceptions.NeutronException):
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message = _("The HA Network CIDR specified in the configuration file "
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"isn't valid; %(cidr)s.")
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class HANotEnoughAvailableAgents(exceptions.NeutronException):
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message = _("Not enough l3 agents available to ensure HA. Minimum "
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"required %(min_agents)s, available %(num_agents)s.")
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class HAMaximumAgentsNumberNotValid(exceptions.NeutronException):
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message = _("max_l3_agents_per_router %(max_agents)s config parameter "
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"is not valid. It has to be greater than or equal to "
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"min_l3_agents_per_router %(min_agents)s.")
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class HAMinimumAgentsNumberNotValid(exceptions.NeutronException):
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message = (_("min_l3_agents_per_router config parameter is not valid. "
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"It has to be equal to or more than %s for HA.") %
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constants.MINIMUM_AGENTS_FOR_HA)
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class L3_ext_ha_mode(extensions.ExtensionDescriptor):
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"""Extension class supporting virtual router in HA mode."""
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@classmethod
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def get_name(cls):
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return "HA Router extension"
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@classmethod
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def get_alias(cls):
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return constants.L3_HA_MODE_EXT_ALIAS
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@classmethod
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def get_description(cls):
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return "Add HA capability to routers."
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@classmethod
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def get_updated(cls):
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return "2014-04-26T00:00:00-00:00"
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def get_extended_resources(self, version):
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if version == "2.0":
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return EXTENDED_ATTRIBUTES_2_0
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else:
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return {}
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