/
core.py
339 lines (288 loc) · 13.6 KB
/
core.py
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
287
288
289
290
291
292
293
294
295
296
297
298
299
300
301
302
303
304
305
306
307
308
309
310
311
312
313
314
315
316
317
318
319
320
321
322
323
324
325
326
327
328
329
330
331
332
333
334
335
336
337
338
339
# Copyright 2012 OpenStack Foundation
# Copyright 2012 Canonical Ltd.
#
# 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.
"""Main entry point into the Catalog service."""
from keystone.common import cache
from keystone.common import driver_hints
from keystone.common import manager
from keystone.common import provider_api
import keystone.conf
from keystone import exception
from keystone.i18n import _
from keystone import notifications
CONF = keystone.conf.CONF
PROVIDERS = provider_api.ProviderAPIs
# This is a general cache region for catalog administration (CRUD operations).
MEMOIZE = cache.get_memoization_decorator(group='catalog')
# This builds a discrete cache region dedicated to complete service catalogs
# computed for a given user + project pair. Any write operation to create,
# modify or delete elements of the service catalog should invalidate this
# entire cache region.
COMPUTED_CATALOG_REGION = cache.create_region(name='computed catalog region')
MEMOIZE_COMPUTED_CATALOG = cache.get_memoization_decorator(
group='catalog',
region=COMPUTED_CATALOG_REGION)
class Manager(manager.Manager):
"""Default pivot point for the Catalog backend.
See :mod:`keystone.common.manager.Manager` for more details on how this
dynamically calls the backend.
"""
driver_namespace = 'keystone.catalog'
_provides_api = 'catalog_api'
_ENDPOINT = 'endpoint'
_SERVICE = 'service'
_REGION = 'region'
def __init__(self):
super(Manager, self).__init__(CONF.catalog.driver)
notifications.register_event_callback(
notifications.ACTIONS.deleted, 'project',
self._on_project_or_endpoint_delete)
notifications.register_event_callback(
notifications.ACTIONS.deleted, 'endpoint',
self._on_project_or_endpoint_delete)
def _on_project_or_endpoint_delete(self, service, resource_type, operation,
payload):
project_or_endpoint_id = payload['resource_info']
if resource_type == 'project':
PROVIDERS.catalog_api.delete_association_by_project(
project_or_endpoint_id)
PROVIDERS.catalog_api.delete_endpoint_group_association_by_project(
project_or_endpoint_id)
else:
PROVIDERS.catalog_api.delete_association_by_endpoint(
project_or_endpoint_id)
def create_region(self, region_ref, initiator=None):
# Check duplicate ID
try:
self.get_region(region_ref['id'])
except exception.RegionNotFound: # nosec
# A region with the same id doesn't exist already, good.
pass
else:
msg = _('Duplicate ID, %s.') % region_ref['id']
raise exception.Conflict(type='region', details=msg)
# NOTE(lbragstad,dstanek): The description column of the region
# database cannot be null. So if the user doesn't pass in a
# description or passes in a null description then set it to an
# empty string.
if region_ref.get('description') is None:
region_ref['description'] = ''
try:
ret = self.driver.create_region(region_ref)
except exception.NotFound:
parent_region_id = region_ref.get('parent_region_id')
raise exception.RegionNotFound(region_id=parent_region_id)
notifications.Audit.created(self._REGION, ret['id'], initiator)
COMPUTED_CATALOG_REGION.invalidate()
return ret
@MEMOIZE
def get_region(self, region_id):
try:
return self.driver.get_region(region_id)
except exception.NotFound:
raise exception.RegionNotFound(region_id=region_id)
def update_region(self, region_id, region_ref, initiator=None):
# NOTE(lbragstad,dstanek): The description column of the region
# database cannot be null. So if the user passes in a null
# description set it to an empty string.
if 'description' in region_ref and region_ref['description'] is None:
region_ref['description'] = ''
ref = self.driver.update_region(region_id, region_ref)
notifications.Audit.updated(self._REGION, region_id, initiator)
self.get_region.invalidate(self, region_id)
COMPUTED_CATALOG_REGION.invalidate()
return ref
def delete_region(self, region_id, initiator=None):
try:
ret = self.driver.delete_region(region_id)
notifications.Audit.deleted(self._REGION, region_id, initiator)
self.get_region.invalidate(self, region_id)
COMPUTED_CATALOG_REGION.invalidate()
return ret
except exception.NotFound:
raise exception.RegionNotFound(region_id=region_id)
@manager.response_truncated
def list_regions(self, hints=None):
return self.driver.list_regions(hints or driver_hints.Hints())
def create_service(self, service_id, service_ref, initiator=None):
service_ref.setdefault('enabled', True)
service_ref.setdefault('name', '')
ref = self.driver.create_service(service_id, service_ref)
notifications.Audit.created(self._SERVICE, service_id, initiator)
COMPUTED_CATALOG_REGION.invalidate()
return ref
@MEMOIZE
def get_service(self, service_id):
try:
return self.driver.get_service(service_id)
except exception.NotFound:
raise exception.ServiceNotFound(service_id=service_id)
def update_service(self, service_id, service_ref, initiator=None):
ref = self.driver.update_service(service_id, service_ref)
notifications.Audit.updated(self._SERVICE, service_id, initiator)
self.get_service.invalidate(self, service_id)
COMPUTED_CATALOG_REGION.invalidate()
return ref
def delete_service(self, service_id, initiator=None):
try:
endpoints = self.list_endpoints()
ret = self.driver.delete_service(service_id)
notifications.Audit.deleted(self._SERVICE, service_id, initiator)
self.get_service.invalidate(self, service_id)
for endpoint in endpoints:
if endpoint['service_id'] == service_id:
self.get_endpoint.invalidate(self, endpoint['id'])
COMPUTED_CATALOG_REGION.invalidate()
return ret
except exception.NotFound:
raise exception.ServiceNotFound(service_id=service_id)
@manager.response_truncated
def list_services(self, hints=None):
return self.driver.list_services(hints or driver_hints.Hints())
def _assert_region_exists(self, region_id):
try:
if region_id is not None:
self.get_region(region_id)
except exception.RegionNotFound:
raise exception.ValidationError(attribute='endpoint region_id',
target='region table')
def _assert_service_exists(self, service_id):
try:
if service_id is not None:
self.get_service(service_id)
except exception.ServiceNotFound:
raise exception.ValidationError(attribute='endpoint service_id',
target='service table')
def create_endpoint(self, endpoint_id, endpoint_ref, initiator=None):
self._assert_region_exists(endpoint_ref.get('region_id'))
self._assert_service_exists(endpoint_ref['service_id'])
ref = self.driver.create_endpoint(endpoint_id, endpoint_ref)
notifications.Audit.created(self._ENDPOINT, endpoint_id, initiator)
COMPUTED_CATALOG_REGION.invalidate()
return ref
def update_endpoint(self, endpoint_id, endpoint_ref, initiator=None):
self._assert_region_exists(endpoint_ref.get('region_id'))
self._assert_service_exists(endpoint_ref.get('service_id'))
ref = self.driver.update_endpoint(endpoint_id, endpoint_ref)
notifications.Audit.updated(self._ENDPOINT, endpoint_id, initiator)
self.get_endpoint.invalidate(self, endpoint_id)
COMPUTED_CATALOG_REGION.invalidate()
return ref
def delete_endpoint(self, endpoint_id, initiator=None):
try:
ret = self.driver.delete_endpoint(endpoint_id)
notifications.Audit.deleted(self._ENDPOINT, endpoint_id, initiator)
self.get_endpoint.invalidate(self, endpoint_id)
COMPUTED_CATALOG_REGION.invalidate()
return ret
except exception.NotFound:
raise exception.EndpointNotFound(endpoint_id=endpoint_id)
@MEMOIZE
def get_endpoint(self, endpoint_id):
try:
return self.driver.get_endpoint(endpoint_id)
except exception.NotFound:
raise exception.EndpointNotFound(endpoint_id=endpoint_id)
@manager.response_truncated
def list_endpoints(self, hints=None):
return self.driver.list_endpoints(hints or driver_hints.Hints())
@MEMOIZE_COMPUTED_CATALOG
def get_v3_catalog(self, user_id, project_id):
return self.driver.get_v3_catalog(user_id, project_id)
def add_endpoint_to_project(self, endpoint_id, project_id):
self.driver.add_endpoint_to_project(endpoint_id, project_id)
COMPUTED_CATALOG_REGION.invalidate()
def remove_endpoint_from_project(self, endpoint_id, project_id):
self.driver.remove_endpoint_from_project(endpoint_id, project_id)
COMPUTED_CATALOG_REGION.invalidate()
def add_endpoint_group_to_project(self, endpoint_group_id, project_id):
self.driver.add_endpoint_group_to_project(
endpoint_group_id, project_id)
COMPUTED_CATALOG_REGION.invalidate()
def remove_endpoint_group_from_project(self, endpoint_group_id,
project_id):
self.driver.remove_endpoint_group_from_project(
endpoint_group_id, project_id)
COMPUTED_CATALOG_REGION.invalidate()
def delete_endpoint_group_association_by_project(self, project_id):
try:
self.driver.delete_endpoint_group_association_by_project(
project_id)
except exception.NotImplemented:
# Some catalog drivers don't support this
pass
def get_endpoint_groups_for_project(self, project_id):
# recover the project endpoint group memberships and for each
# membership recover the endpoint group
PROVIDERS.resource_api.get_project(project_id)
try:
refs = self.list_endpoint_groups_for_project(project_id)
endpoint_groups = [self.get_endpoint_group(
ref['endpoint_group_id']) for ref in refs]
return endpoint_groups
except exception.EndpointGroupNotFound:
return []
def get_endpoints_filtered_by_endpoint_group(self, endpoint_group_id):
endpoints = self.list_endpoints()
filters = self.get_endpoint_group(endpoint_group_id)['filters']
filtered_endpoints = []
for endpoint in endpoints:
is_candidate = True
for key, value in filters.items():
if endpoint[key] != value:
is_candidate = False
break
if is_candidate:
filtered_endpoints.append(endpoint)
return filtered_endpoints
def list_endpoints_for_project(self, project_id):
"""List all endpoints associated with a project.
:param project_id: project identifier to check
:type project_id: string
:returns: a list of endpoint ids or an empty list.
"""
refs = self.driver.list_endpoints_for_project(project_id)
filtered_endpoints = {}
for ref in refs:
try:
endpoint = self.get_endpoint(ref['endpoint_id'])
filtered_endpoints.update({ref['endpoint_id']: endpoint})
except exception.EndpointNotFound:
# remove bad reference from association
self.remove_endpoint_from_project(ref['endpoint_id'],
project_id)
# need to recover endpoint_groups associated with project
# then for each endpoint group return the endpoints.
endpoint_groups = self.get_endpoint_groups_for_project(project_id)
for endpoint_group in endpoint_groups:
endpoint_refs = self.get_endpoints_filtered_by_endpoint_group(
endpoint_group['id'])
# now check if any endpoints for current endpoint group are not
# contained in the list of filtered endpoints
for endpoint_ref in endpoint_refs:
if endpoint_ref['id'] not in filtered_endpoints:
filtered_endpoints[endpoint_ref['id']] = endpoint_ref
return filtered_endpoints
def delete_association_by_endpoint(self, endpoint_id):
try:
self.driver.delete_association_by_endpoint(endpoint_id)
except exception.NotImplemented:
# Some catalog drivers don't support this
pass
def delete_association_by_project(self, project_id):
try:
self.driver.delete_association_by_project(project_id)
except exception.NotImplemented:
# Some catalog drivers don't support this
pass