95 lines
3.4 KiB
Python
95 lines
3.4 KiB
Python
# Copyright 2016 Mirantis, Inc.
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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 bareon.drivers.base import BaseDataDriver
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from bareon.drivers.base import PartitioningDataDriverMixin
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from bareon import objects
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from bareon.openstack.common import log
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from bareon_allocator import allocators
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# Logger for bareon-dynamic allocator should be configured
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# to use Bareon's logger
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LOG = log.getLogger(__name__)
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class DynamicAllocator(BaseDataDriver, PartitioningDataDriverMixin):
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TABLE_TYPE = 'gpt'
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@property
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def partition_scheme(self):
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partition_objects = objects.PartitionScheme()
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hw_info = self.data.get('hw_info')
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dynamic_schema = self.data.get('dynamic_schema')
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static_scheme = allocators.DynamicAllocator(
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hw_info,
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dynamic_schema).generate_static()
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self._parse_partition_scheme(static_scheme, partition_objects)
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return partition_objects
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def _parse_partition_scheme(self, static_scheme, partition_objects):
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for disk in static_scheme:
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LOG.debug('Start allocation of spaces on disk %s', disk)
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disk_raw = filter(lambda d: d['id'] == disk['disk_id'],
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self.data['hw_info']['disks'])[0]
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LOG.debug('Create parted object %s with label %s',
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disk_raw['path'],
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self.TABLE_TYPE)
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parted = partition_objects.add_parted(
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name=disk_raw['path'],
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label=self.TABLE_TYPE)
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for space in disk['spaces']:
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LOG.debug('Create partition name %s size %s',
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space['space_id'], space['size'])
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partition = parted.add_partition(
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size=space['size'],
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name=space['space_id'])
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raw_space = filter(lambda s: s['id'] == space['space_id'],
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self.data['dynamic_schema'])
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if not raw_space:
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raw_space = {}
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else:
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raw_space = raw_space[0]
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if raw_space.get('type') == 'lv':
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vg = filter(
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lambda s: raw_space['id'] in map(
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lambda v: v['id'], s.get('contains', []))
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and s.get('type') == 'vg',
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self.data['dynamic_schema'])[0]
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LOG.debug(
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'Add Phisical Volume to Volume '
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'Group vgname %s pvname %s',
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vg['id'],
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raw_space['id'])
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partition_objects.vg_attach_by_name(
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pvname=partition.name,
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vgname=vg['id'],
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# TODO(eli): figure out how to calculate size
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# of metadata properly
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metadatasize=8,
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metadatacopies=2)
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