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# Copyright (C) 2014 eNovance SAS <licensing@enovance.com>
#
# Licensed under the Apache License, Version 2.0 (the "License"); you may
# not use this file except in compliance with the License. You may obtain
# a copy of the License at
#
# http://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or agreed to in writing, software
# distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
# WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
# License for the specific language governing permissions and limitations
# under the License.
#
from neutron.api import extensions
from neutron.api.v2 import attributes
from neutron.common import constants
from neutron.common import exceptions
HA_INFO = 'ha'
EXTENDED_ATTRIBUTES_2_0 = {
'routers': {
HA_INFO: {'allow_post': True, 'allow_put': False,
'default': attributes.ATTR_NOT_SPECIFIED, 'is_visible': True,
'enforce_policy': True,
'convert_to': attributes.convert_to_boolean_if_not_none}
}
}
class DistributedHARouterNotSupported(NotImplementedError):
message = _("Currenly distributed HA routers are "
"not supported.")
class MaxVRIDAllocationTriesReached(exceptions.NeutronException):
message = _("Failed to allocate a VRID in the network %(network_id)s "
"for the router %(router_id)s after %(max_tries)s tries.")
class NoVRIDAvailable(exceptions.Conflict):
message = _("No more Virtual Router Identifier (VRID) available when "
"creating router %(router_id)s. The limit of number "
"of HA Routers per tenant is 254.")
class HANetworkCIDRNotValid(exceptions.NeutronException):
message = _("The HA Network CIDR specified in the configuration file "
"isn't valid; %(cidr)s.")
class HANotEnoughAvailableAgents(exceptions.NeutronException):
message = _("Not enough l3 agents available to ensure HA. Minimum "
"required %(min_agents)s, available %(num_agents)s.")
class HAMinimumAgentsNumberNotValid(exceptions.NeutronException):
message = (_("min_l3_agents_per_router config parameter is not valid. "
"It has to be equal to or more than %s for HA.") %
constants.MINIMUM_AGENTS_FOR_HA)
class L3_ext_ha_mode(extensions.ExtensionDescriptor):
"""Extension class supporting virtual router in HA mode."""
@classmethod
def get_name(cls):
return "HA Router extension"
@classmethod
def get_alias(cls):
return constants.L3_HA_MODE_EXT_ALIAS
@classmethod
def get_description(cls):
return "Add HA capability to routers."
@classmethod
def get_namespace(cls):
return ""
@classmethod
def get_updated(cls):
return "2014-04-26T00:00:00-00:00"
def get_extended_resources(self, version):
if version == "2.0":
return EXTENDED_ATTRIBUTES_2_0
else:
return {}
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