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

241 lines
9.6 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 urlparse
import webob
from nova.api.openstack import extensions
from nova.api.openstack import wsgi
import nova.context
from nova import db
from nova import exception
from nova.openstack.common.gettextutils import _
from nova.openstack.common import log as logging
from nova.openstack.common import strutils
from nova import quota
from nova import utils
ALIAS = "os-quota-sets"
QUOTAS = quota.QUOTAS
LOG = logging.getLogger(__name__)
FILTERED_QUOTAS = ['injected_files', 'injected_file_content_bytes',
'injected_file_path_bytes']
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=project_id)
return dict(quota_set=quota_set)
def _validate_quota_limit(self, limit, minimum, maximum):
# NOTE: -1 is a flag value for unlimited
if limit < -1:
msg = _("Quota limit must be -1 or greater.")
raise webob.exc.HTTPBadRequest(explanation=msg)
if ((limit < minimum) and
(maximum != -1 or (maximum == -1 and limit != -1))):
msg = _("Quota limit must greater than %s.") % minimum
raise webob.exc.HTTPBadRequest(explanation=msg)
if maximum != -1 and limit > maximum:
msg = _("Quota limit must less than %s.") % 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)
values = dict((k, v) for k, v in values.items() if k not in
FILTERED_QUOTAS)
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.NotAuthorized:
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.NotAuthorized:
raise webob.exc.HTTPForbidden()
@extensions.expected_errors((400, 403))
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]
bad_keys = []
force_update = False
if not self.is_valid_body(body, 'quota_set'):
msg = _("quota_set not specified")
raise webob.exc.HTTPBadRequest(explanation=msg)
quota_set = body['quota_set']
for key, value in quota_set.items():
if ((key not in QUOTAS or key in FILTERED_QUOTAS)
and key != 'force'):
bad_keys.append(key)
continue
if key == 'force':
force_update = strutils.bool_from_string(value)
elif key != 'force' and value:
try:
value = utils.validate_integer(
value, key)
except exception.InvalidInput as e:
LOG.warn(e.format_message())
raise webob.exc.HTTPBadRequest(
explanation=e.format_message())
if len(bad_keys) > 0:
msg = _("Bad key(s) %s in quota_set") % ",".join(bad_keys)
raise webob.exc.HTTPBadRequest(explanation=msg)
try:
settable_quotas = QUOTAS.get_settable_quotas(context, project_id,
user_id=user_id)
except exception.NotAuthorized:
raise webob.exc.HTTPForbidden()
try:
quotas = self._get_quotas(context, id, user_id=user_id,
usages=True)
except exception.NotAuthorized:
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 force_update is not True and value >= 0:
quota_value = quotas.get(key)
if quota_value and quota_value['limit'] >= 0:
quota_used = (quota_value['in_use'] +
quota_value['reserved'])
LOG.debug(_("Quota %(key)s used: %(quota_used)s, "
"value: %(value)s."),
{'key': key, 'quota_used': quota_used,
'value': value})
if quota_used > value:
msg = (_("Quota value %(value)s for %(key)s are "
"less than already used and reserved "
"%(quota_used)s") %
{'value': value, 'key': key,
'quota_used': quota_used})
raise webob.exc.HTTPBadRequest(explanation=msg)
minimum = settable_quotas[key]['minimum']
maximum = settable_quotas[key]['maximum']
self._validate_quota_limit(value, minimum, maximum)
try:
db.quota_create(context, project_id, key, value,
user_id=user_id)
except exception.QuotaExists:
db.quota_update(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)
values = dict((k, v) for k, v in values.items() if k not in
FILTERED_QUOTAS)
return self._format_quota_set(id, values)
@extensions.expected_errors(403)
@wsgi.response(204)
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.NotAuthorized:
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 []