194 lines
7.8 KiB
Python
194 lines
7.8 KiB
Python
# Copyright 2011 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 oslo_utils import strutils
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import six
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import six.moves.urllib.parse as urlparse
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import webob
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from nova.api.openstack.compute.schemas.v3 import quota_sets
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from nova.api.openstack import extensions
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from nova.api.openstack import wsgi
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from nova.api import validation
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from nova import exception
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from nova.i18n import _
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from nova import objects
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from nova import quota
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ALIAS = "os-quota-sets"
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QUOTAS = quota.QUOTAS
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authorize = extensions.os_compute_authorizer(ALIAS)
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class QuotaSetsController(wsgi.Controller):
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def _format_quota_set(self, project_id, quota_set):
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"""Convert the quota object to a result dict."""
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if project_id:
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result = dict(id=str(project_id))
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else:
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result = {}
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for resource in QUOTAS.resources:
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if resource in quota_set:
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result[resource] = quota_set[resource]
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return dict(quota_set=result)
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def _validate_quota_limit(self, resource, limit, minimum, maximum):
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# NOTE: -1 is a flag value for unlimited
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if limit < -1:
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msg = (_("Quota limit %(limit)s for %(resource)s "
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"must be -1 or greater.") %
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{'limit': limit, 'resource': resource})
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raise webob.exc.HTTPBadRequest(explanation=msg)
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def conv_inf(value):
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return float("inf") if value == -1 else value
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if conv_inf(limit) < conv_inf(minimum):
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msg = (_("Quota limit %(limit)s for %(resource)s must "
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"be greater than or equal to already used and "
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"reserved %(minimum)s.") %
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{'limit': limit, 'resource': resource, 'minimum': minimum})
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raise webob.exc.HTTPBadRequest(explanation=msg)
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if conv_inf(limit) > conv_inf(maximum):
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msg = (_("Quota limit %(limit)s for %(resource)s must be "
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"less than or equal to %(maximum)s.") %
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{'limit': limit, 'resource': resource, 'maximum': maximum})
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raise webob.exc.HTTPBadRequest(explanation=msg)
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def _get_quotas(self, context, id, user_id=None, usages=False):
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if user_id:
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values = QUOTAS.get_user_quotas(context, id, user_id,
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usages=usages)
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else:
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values = QUOTAS.get_project_quotas(context, id, usages=usages)
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if usages:
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return values
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else:
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return {k: v['limit'] for k, v in values.items()}
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@extensions.expected_errors(())
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def show(self, req, id):
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context = req.environ['nova.context']
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authorize(context, action='show', target={'project_id': id})
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params = urlparse.parse_qs(req.environ.get('QUERY_STRING', ''))
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user_id = params.get('user_id', [None])[0]
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return self._format_quota_set(id,
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self._get_quotas(context, id, user_id=user_id))
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@extensions.expected_errors(())
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def detail(self, req, id):
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context = req.environ['nova.context']
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authorize(context, action='detail', target={'project_id': id})
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user_id = req.GET.get('user_id', None)
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return self._format_quota_set(id, self._get_quotas(context, id,
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user_id=user_id,
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usages=True))
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@extensions.expected_errors(400)
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@validation.schema(quota_sets.update)
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def update(self, req, id, body):
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context = req.environ['nova.context']
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authorize(context, action='update', target={'project_id': id})
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project_id = id
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params = urlparse.parse_qs(req.environ.get('QUERY_STRING', ''))
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user_id = params.get('user_id', [None])[0]
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quota_set = body['quota_set']
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force_update = strutils.bool_from_string(quota_set.get('force',
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'False'))
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settable_quotas = QUOTAS.get_settable_quotas(context, project_id,
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user_id=user_id)
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# NOTE(dims): Pass #1 - In this loop for quota_set.items(), we validate
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# min/max values and bail out if any of the items in the set is bad.
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valid_quotas = {}
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for key, value in six.iteritems(body['quota_set']):
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if key == 'force' or (not value and value != 0):
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continue
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# validate whether already used and reserved exceeds the new
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# quota, this check will be ignored if admin want to force
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# update
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value = int(value)
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if not force_update:
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minimum = settable_quotas[key]['minimum']
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maximum = settable_quotas[key]['maximum']
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self._validate_quota_limit(key, value, minimum, maximum)
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valid_quotas[key] = value
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# NOTE(dims): Pass #2 - At this point we know that all the
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# values are correct and we can iterate and update them all in one
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# shot without having to worry about rolling back etc as we have done
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# the validation up front in the loop above.
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for key, value in valid_quotas.items():
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try:
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objects.Quotas.create_limit(context, project_id,
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key, value, user_id=user_id)
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except exception.QuotaExists:
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objects.Quotas.update_limit(context, project_id,
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key, value, user_id=user_id)
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# Note(gmann): Removed 'id' from update's response to make it same
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# as V2. If needed it can be added with microversion.
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return self._format_quota_set(None, self._get_quotas(context, id,
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user_id=user_id))
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@extensions.expected_errors(())
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def defaults(self, req, id):
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context = req.environ['nova.context']
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authorize(context, action='defaults', target={'project_id': id})
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values = QUOTAS.get_defaults(context)
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return self._format_quota_set(id, values)
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# TODO(oomichi): Here should be 204(No Content) instead of 202 by v2.1
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# +microversions because the resource quota-set has been deleted completely
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# when returning a response.
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@extensions.expected_errors(())
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@wsgi.response(202)
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def delete(self, req, id):
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context = req.environ['nova.context']
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authorize(context, action='delete', target={'project_id': id})
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params = urlparse.parse_qs(req.environ.get('QUERY_STRING', ''))
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user_id = params.get('user_id', [None])[0]
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if user_id:
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QUOTAS.destroy_all_by_project_and_user(context,
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id, user_id)
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else:
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QUOTAS.destroy_all_by_project(context, id)
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class QuotaSets(extensions.V3APIExtensionBase):
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"""Quotas management support."""
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name = "Quotas"
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alias = ALIAS
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version = 1
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def get_resources(self):
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resources = []
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res = extensions.ResourceExtension(ALIAS,
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QuotaSetsController(),
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member_actions={'defaults': 'GET',
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'detail': 'GET'})
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resources.append(res)
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return resources
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def get_controller_extensions(self):
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return []
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