de81ab8385
IP rule priorities assigned to DVR floating IPs need to be preserved over L3 agent restarts. Reuse the ItemAllocator class decomposed from Link Local IP address allocation. Also move commn unit tests to ItemAllocator class. Closes-Bug: #1414779 Change-Id: I6a75aa8ad612ee80b391f0a27a8a7e29519c3f8d Co-Authored-By: Rajeev Grover <rajeev.grover@hp.com> Co-Authored-By: Ryan Moats <rmoats@us.ibm.com>
54 lines
2.0 KiB
Python
54 lines
2.0 KiB
Python
# Copyright 2015 IBM Corporation
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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.agent.l3.item_allocator import ItemAllocator
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class FipPriority(object):
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def __init__(self, index):
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self.index = index
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def __repr__(self):
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return str(self.index)
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def __hash__(self):
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return hash(self.__repr__())
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def __eq__(self, other):
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if isinstance(other, FipPriority):
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return (self.index == other.index)
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else:
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return False
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class FipRulePriorityAllocator(ItemAllocator):
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"""Manages allocation of floating ips rule priorities.
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IP rule priorities assigned to DVR floating IPs need
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to be preserved over L3 agent restarts.
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This class provides an allocator which saves the prirorities
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to a datastore which will survive L3 agent restarts.
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"""
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def __init__(self, data_store_path, priority_rule_start,
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priority_rule_end):
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"""Create the necessary pool and create the item allocator
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using ',' as the delimiter and FipRulePriorityAllocator as the
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class type
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"""
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pool = set(FipPriority(str(s)) for s in range(priority_rule_start,
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priority_rule_end))
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super(FipRulePriorityAllocator, self).__init__(data_store_path,
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FipPriority,
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pool)
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