nova/nova/api/openstack/compute/plugins/v3/quota_sets.py

197 lines
7.9 KiB
Python

# Copyright 2011 OpenStack Foundation
# 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.
import six.moves.urllib.parse as urlparse
import webob
from nova.api.openstack.compute.schemas.v3 import quota_sets
from nova.api.openstack import extensions
from nova.api.openstack import wsgi
from nova.api import validation
import nova.context
from nova import exception
from nova.i18n import _
from nova import objects
from nova.openstack.common import log as logging
from nova.openstack.common import strutils
from nova import quota
ALIAS = "os-quota-sets"
QUOTAS = quota.QUOTAS
LOG = logging.getLogger(__name__)
authorize_update = extensions.extension_authorizer('compute',
'v3:%s:update' % ALIAS)
authorize_show = extensions.extension_authorizer('compute',
'v3:%s:show' % ALIAS)
authorize_delete = extensions.extension_authorizer('compute',
'v3:%s:delete' % ALIAS)
authorize_detail = extensions.extension_authorizer('compute',
'v3:%s:detail' % ALIAS)
class QuotaSetsController(wsgi.Controller):
def _format_quota_set(self, project_id, quota_set):
"""Convert the quota object to a result dict."""
quota_set.update(id=str(project_id))
return dict(quota_set=quota_set)
def _validate_quota_limit(self, resource, limit, minimum, maximum):
# NOTE: -1 is a flag value for unlimited
if ((limit < minimum) and
(maximum != -1 or (maximum == -1 and limit != -1))):
msg = (_("Quota limit %(limit)s for %(resource)s must "
"be greater than or equal to already used and "
"reserved %(minimum)s.") %
{'limit': limit, 'resource': resource, 'minimum': minimum})
raise webob.exc.HTTPBadRequest(explanation=msg)
if maximum != -1 and limit > maximum:
msg = (_("Quota limit %(limit)s for %(resource)s must be "
"less than or equal to %(maximum)s.") %
{'limit': limit, 'resource': resource, 'maximum': maximum})
raise webob.exc.HTTPBadRequest(explanation=msg)
def _get_quotas(self, context, id, user_id=None, usages=False):
if user_id:
values = QUOTAS.get_user_quotas(context, id, user_id,
usages=usages)
else:
values = QUOTAS.get_project_quotas(context, id, usages=usages)
if usages:
return values
else:
return dict((k, v['limit']) for k, v in values.items())
@extensions.expected_errors(403)
def show(self, req, id):
context = req.environ['nova.context']
authorize_show(context)
params = urlparse.parse_qs(req.environ.get('QUERY_STRING', ''))
user_id = params.get('user_id', [None])[0]
try:
nova.context.authorize_project_context(context, id)
return self._format_quota_set(id,
self._get_quotas(context, id, user_id=user_id))
except exception.Forbidden:
raise webob.exc.HTTPForbidden()
@extensions.expected_errors(403)
def detail(self, req, id):
context = req.environ['nova.context']
authorize_detail(context)
user_id = req.GET.get('user_id', None)
try:
nova.context.authorize_project_context(context, id)
return self._format_quota_set(id, self._get_quotas(context, id,
user_id=user_id,
usages=True))
except exception.Forbidden:
raise webob.exc.HTTPForbidden()
@extensions.expected_errors((400, 403))
@validation.schema(quota_sets.update)
def update(self, req, id, body):
context = req.environ['nova.context']
authorize_update(context)
project_id = id
params = urlparse.parse_qs(req.environ.get('QUERY_STRING', ''))
user_id = params.get('user_id', [None])[0]
quota_set = body['quota_set']
force_update = strutils.bool_from_string(quota_set.get('force',
'False'))
try:
settable_quotas = QUOTAS.get_settable_quotas(context, project_id,
user_id=user_id)
except exception.Forbidden:
raise webob.exc.HTTPForbidden()
LOG.debug("Force update quotas: %s", force_update)
for key, value in body['quota_set'].iteritems():
if key == 'force' or (not value and value != 0):
continue
# validate whether already used and reserved exceeds the new
# quota, this check will be ignored if admin want to force
# update
value = int(value)
if not force_update:
minimum = settable_quotas[key]['minimum']
maximum = settable_quotas[key]['maximum']
self._validate_quota_limit(key, value, minimum, maximum)
try:
objects.Quotas.create_limit(context, project_id,
key, value, user_id=user_id)
except exception.QuotaExists:
objects.Quotas.update_limit(context, project_id,
key, value, user_id=user_id)
except exception.AdminRequired:
raise webob.exc.HTTPForbidden()
return self._format_quota_set(id, self._get_quotas(context, id,
user_id=user_id))
@extensions.expected_errors(())
def defaults(self, req, id):
context = req.environ['nova.context']
authorize_show(context)
values = QUOTAS.get_defaults(context)
return self._format_quota_set(id, values)
# TODO(oomichi): Here should be 204(No Content) instead of 202 by v2.1
# +microversions because the resource quota-set has been deleted completely
# when returning a response.
@extensions.expected_errors(403)
@wsgi.response(202)
def delete(self, req, id):
context = req.environ['nova.context']
authorize_delete(context)
params = urlparse.parse_qs(req.environ.get('QUERY_STRING', ''))
user_id = params.get('user_id', [None])[0]
try:
nova.context.authorize_project_context(context, id)
if user_id:
QUOTAS.destroy_all_by_project_and_user(context,
id, user_id)
else:
QUOTAS.destroy_all_by_project(context, id)
except exception.Forbidden:
raise webob.exc.HTTPForbidden()
class QuotaSets(extensions.V3APIExtensionBase):
"""Quotas management support."""
name = "Quotas"
alias = ALIAS
version = 1
def get_resources(self):
resources = []
res = extensions.ResourceExtension(ALIAS,
QuotaSetsController(),
member_actions={'defaults': 'GET',
'detail': 'GET'})
resources.append(res)
return resources
def get_controller_extensions(self):
return []