66 lines
2.6 KiB
Python
66 lines
2.6 KiB
Python
# Copyright 2013 OpenStack Foundation
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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 cinder import exception
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from cinder.i18n import _
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from cinder.openstack.common import log as logging
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from cinder import quota
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LOG = logging.getLogger(__name__)
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QUOTAS = quota.QUOTAS
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def get_volume_type_reservation(ctxt, volume, type_id):
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# Reserve quotas for the given volume type
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try:
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reserve_opts = {'volumes': 1, 'gigabytes': volume['size']}
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QUOTAS.add_volume_type_opts(ctxt,
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reserve_opts,
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type_id)
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reservations = QUOTAS.reserve(ctxt, **reserve_opts)
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except exception.OverQuota as e:
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overs = e.kwargs['overs']
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usages = e.kwargs['usages']
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quotas = e.kwargs['quotas']
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def _consumed(name):
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return (usages[name]['reserved'] + usages[name]['in_use'])
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for over in overs:
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if 'gigabytes' in over:
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s_size = volume['size']
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d_quota = quotas[over]
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d_consumed = _consumed(over)
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msg = _("Quota exceeded for %(s_pid)s, tried to create "
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"%(s_size)sG volume - (%(d_consumed)dG of "
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"%(d_quota)dG already consumed)")
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LOG.warn(msg % {'s_pid': ctxt.project_id,
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's_size': s_size,
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'd_consumed': d_consumed,
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'd_quota': d_quota})
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raise exception.VolumeSizeExceedsAvailableQuota(
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requested=s_size, quota=d_quota, consumed=d_consumed)
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elif 'volumes' in over:
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msg = _("Quota exceeded for %(s_pid)s, tried to create "
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"volume (%(d_consumed)d volumes "
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"already consumed)")
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LOG.warn(msg % {'s_pid': ctxt.project_id,
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'd_consumed': _consumed(over)})
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raise exception.VolumeLimitExceeded(
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allowed=quotas[over])
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return reservations
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