206 lines
6.6 KiB
Python
206 lines
6.6 KiB
Python
# Copyright (c) 2017 RedHat, Inc.
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#
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# Licensed under the Apache License, Version 2.0 (the "License");
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# you may not use this file except in compliance with the License.
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# You may obtain 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,
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# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or
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# implied.
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# See the License for the specific language governing permissions and
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# limitations under the License.
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import copy
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import glance_store as g_store
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from oslo_config import cfg
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from oslo_log import log as logging
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import oslo_serialization.jsonutils as json
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import webob.exc
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from glance.api import policy
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from glance.api.v2 import policy as api_policy
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from glance.common import exception
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from glance.common import wsgi
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import glance.db
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from glance.i18n import _
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from glance.quota import keystone as ks_quota
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CONF = cfg.CONF
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LOG = logging.getLogger(__name__)
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class InfoController(object):
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def __init__(self, policy_enforcer=None):
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self.policy = policy_enforcer or policy.Enforcer()
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def get_image_import(self, req):
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# TODO(jokke): All the rest of the boundaries should be implemented.
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import_methods = {
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'description': 'Import methods available.',
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'type': 'array',
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'value': CONF.get('enabled_import_methods')
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}
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return {
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'import-methods': import_methods
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}
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def get_stores(self, req):
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# TODO(abhishekk): This will be removed after config options
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# 'stores' and 'default_store' are removed.
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enabled_backends = CONF.enabled_backends
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if not enabled_backends:
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msg = _("Multi backend is not supported at this site.")
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raise webob.exc.HTTPNotFound(explanation=msg)
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backends = []
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for backend in enabled_backends:
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if backend.startswith("os_glance_"):
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continue
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stores = {}
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stores['id'] = backend
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description = getattr(CONF, backend).store_description
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if description:
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stores['description'] = description
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if backend == CONF.glance_store.default_backend:
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stores['default'] = "true"
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# Check if http store is configured then mark it as read-only
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if enabled_backends[backend] == 'http':
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stores['read-only'] = "true"
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backends.append(stores)
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return {'stores': backends}
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@staticmethod
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def _get_rbd_properties(store_detail):
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return {
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'chunk_size': store_detail.chunk_size,
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'pool': store_detail.pool,
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'thin_provisioning': store_detail.thin_provisioning
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}
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@staticmethod
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def _get_file_properties(store_detail):
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return {
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'data_dir': store_detail.datadir,
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'chunk_size': store_detail.chunk_size,
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'thin_provisioning': store_detail.thin_provisioning
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}
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@staticmethod
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def _get_cinder_properties(store_detail):
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return {
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'volume_type': store_detail.store_conf.cinder_volume_type,
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'use_multipath': store_detail.store_conf.cinder_use_multipath
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}
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@staticmethod
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def _get_swift_properties(store_detail):
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return {
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'container': store_detail.container,
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'large_object_size': store_detail.large_object_size,
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'large_object_chunk_size': store_detail.large_object_chunk_size
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}
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@staticmethod
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def _get_s3_properties(store_detail):
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return {
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's3_store_large_object_size':
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store_detail.s3_store_large_object_size,
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's3_store_large_object_chunk_size':
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store_detail.s3_store_large_object_chunk_size,
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's3_store_thread_pools':
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store_detail.s3_store_thread_pools
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}
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@staticmethod
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def _get_http_properties(store_detail):
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# NOTE(mrjoshi): Thre are no useful properties
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# to be exposed.
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return {}
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def get_stores_detail(self, req):
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enabled_backends = CONF.enabled_backends
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stores = self.get_stores(req).get('stores')
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try:
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api_policy.DiscoveryAPIPolicy(
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req.context,
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enforcer=self.policy).stores_info_detail()
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store_mapper = {
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'rbd': self._get_rbd_properties,
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'file': self._get_file_properties,
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'cinder': self._get_cinder_properties,
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'swift': self._get_swift_properties,
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's3': self._get_s3_properties,
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'http': self._get_http_properties
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}
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for store in stores:
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store_type = enabled_backends[store['id']]
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store['type'] = store_type
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store_detail = g_store.get_store_from_store_identifier(
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store['id'])
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store['properties'] = store_mapper.get(store_type)(
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store_detail)
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store['weight'] = getattr(CONF, store['id']).weight
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except exception.Forbidden as e:
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LOG.debug("User not permitted to view details")
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raise webob.exc.HTTPForbidden(explanation=e.msg)
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return {'stores': stores}
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def get_usage(self, req):
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project_usage = ks_quota.get_usage(req.context)
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return {'usage':
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{name: {'usage': usage.usage,
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'limit': usage.limit}
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for name, usage in project_usage.items()}}
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class ResponseSerializer(wsgi.JSONResponseSerializer):
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def __init__(self, usage_schema=None):
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super(ResponseSerializer, self).__init__()
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self.schema = usage_schema or get_usage_schema()
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def get_usage(self, response, usage):
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body = json.dumps(self.schema.filter(usage), ensure_ascii=False)
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response.unicode_body = str(body)
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response.content_type = 'application/json'
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_USAGE_SCHEMA = {
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'usage': {
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'type': 'array',
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'items': {
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'type': 'object',
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'additionalProperties': True,
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'validation_data': {
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'type': 'object',
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'additonalProperties': False,
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'properties': {
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'usage': {'type': 'integer'},
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'limit': {'type': 'integer'},
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},
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},
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},
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},
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}
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def get_usage_schema():
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return glance.schema.Schema('usage', copy.deepcopy(_USAGE_SCHEMA))
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def create_resource():
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usage_schema = get_usage_schema()
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serializer = ResponseSerializer(usage_schema)
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return wsgi.Resource(InfoController(), None, serializer)
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