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# Copyright 2020 Red Hat, Inc. All rights reserved.
#
# 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.
"""Validators for ``quota`` namespaced extra specs."""
from nova.api.validation.extra_specs import base
EXTRA_SPEC_VALIDATORS = []
# CPU, memory, disk IO and VIF quotas (VMWare)
for resource in ('cpu', 'memory', 'disk_io', 'vif'):
for key, fmt in (
('limit', int),
('reservation', int),
('shares_level', str),
('shares_share', int)
):
EXTRA_SPEC_VALIDATORS.append(
base.ExtraSpecValidator(
name=f'quota:{resource}_{key}',
description=(
'The {} for {}. Only supported by the VMWare virt '
'driver.'.format(' '.join(key.split('_')), resource)
),
value={
'type': fmt,
},
)
)
# CPU quotas (libvirt)
for key in ('shares', 'period', 'quota'):
EXTRA_SPEC_VALIDATORS.append(
base.ExtraSpecValidator(
name=f'quota:cpu_{key}',
description=(
f'The quota {key} for CPU. Only supported by the libvirt '
f'virt driver.'
),
value={
'type': int,
'min': 0,
},
)
)
# Disk quotas (libvirt, HyperV)
for stat in ('read', 'write', 'total'):
for metric in ('bytes', 'iops'):
EXTRA_SPEC_VALIDATORS.append(
base.ExtraSpecValidator(
name=f'quota:disk_{stat}_{metric}_sec',
# NOTE(stephenfin): HyperV supports disk_total_{metric}_sec
# too; update
description=(
f'The quota {stat} {metric} for disk. Only supported '
f'by the libvirt virt driver.'
),
value={
'type': int,
'min': 0,
},
)
)
# VIF quotas (libvirt)
# TODO(stephenfin): Determine whether this should be deprecated now that
# nova-network is dead
for stat in ('inbound', 'outbound'):
for metric in ('average', 'peak', 'burst'):
EXTRA_SPEC_VALIDATORS.append(
base.ExtraSpecValidator(
name=f'quota:vif_{stat}_{metric}',
description=(
f'The quota {stat} {metric} for VIF. Only supported '
f'by the libvirt virt driver.'
),
value={
'type': int,
'min': 0,
},
)
)
def register():
return EXTRA_SPEC_VALIDATORS
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