89 lines
3.1 KiB
Python
89 lines
3.1 KiB
Python
# 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 collections import defaultdict
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from oslo_log import log
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from cinderclient import client
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from dcorch.common import exceptions
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from dcorch.drivers import base
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LOG = log.getLogger(__name__)
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API_VERSION = '2'
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class CinderClient(base.DriverBase):
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"""Cinder V2 driver."""
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def __init__(self, region, disabled_quotas, session, endpoint_type):
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try:
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self.cinder = client.Client(API_VERSION,
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session=session,
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region_name=region,
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endpoint_type=endpoint_type)
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self.no_volumes = True if 'volumes' in disabled_quotas else False
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except exceptions.ServiceUnavailable:
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raise
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def get_resource_usages(self, project_id):
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"""Calculate resources usage and return the dict
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:param: project_id
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:return: resource usage dict
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TODO: support the rest of the quotas
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"""
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if not self.no_volumes:
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try:
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quota_usage = self.cinder.quotas.get(
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project_id, usage=True)
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quota_usage_dict = quota_usage.to_dict()
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del quota_usage_dict['id']
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resource_usage = defaultdict(dict)
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for resource in quota_usage_dict:
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# NOTE: May be able to remove "reserved" if
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# cinder will never set it. Need to check.
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resource_usage[resource] = (
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quota_usage_dict[resource]['in_use'] +
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quota_usage_dict[resource]['reserved'])
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return resource_usage
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except exceptions.InternalError:
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raise
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def get_quota_limits(self, project_id):
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"""Get the resource limits"""
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try:
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quotas = self.cinder.quotas.get(
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project_id, usage=False)
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quotas_dict = quotas.to_dict()
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del quotas_dict['id']
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return quotas_dict
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except exceptions.InternalError:
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raise
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def update_quota_limits(self, project_id, **new_quota):
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"""Update the limits"""
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try:
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if not self.no_volumes:
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return self.cinder.quotas.update(project_id, **new_quota)
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except exceptions.InternalError:
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raise
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def delete_quota_limits(self, project_id):
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"""Delete/Reset the limits"""
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try:
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if not self.no_volumes:
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return self.cinder.quotas.delete(project_id)
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except exceptions.InternalError:
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raise
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