1 # -*- coding: utf-8 -*-
3 # Licensed under the Apache License, Version 2.0 (the "License");
4 # you may not use this file except in compliance with the License.
5 # You may obtain a copy of the License at
7 # http://www.apache.org/licenses/LICENSE-2.0
9 # Unless required by applicable law or agreed to in writing, software
10 # distributed under the License is distributed on an "AS IS" BASIS,
11 # WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or
13 # See the License for the specific language governing permissions and
14 # limitations under the License.
18 from osm_common
import dbmongo
, dbmemory
, fslocal
, fsmongo
, msglocal
, msgkafka
, version
as common_version
19 from osm_common
.dbbase
import DbException
20 from osm_common
.fsbase
import FsException
21 from osm_common
.msgbase
import MsgException
22 from http
import HTTPStatus
24 from osm_nbi
.authconn_keystone
import AuthconnKeystone
25 from osm_nbi
.authconn_internal
import AuthconnInternal
26 from osm_nbi
.base_topic
import EngineException
, versiontuple
27 from osm_nbi
.admin_topics
import VimAccountTopic
, WimAccountTopic
, SdnTopic
28 from osm_nbi
.admin_topics
import K8sClusterTopic
, K8sRepoTopic
, OsmRepoTopic
29 from osm_nbi
.admin_topics
import UserTopicAuth
, ProjectTopicAuth
, RoleTopicAuth
30 from osm_nbi
.descriptor_topics
import VnfdTopic
, NsdTopic
, PduTopic
, NstTopic
, VnfPkgOpTopic
31 from osm_nbi
.instance_topics
import NsrTopic
, VnfrTopic
, NsLcmOpTopic
, NsiTopic
, NsiLcmOpTopic
32 from osm_nbi
.pmjobs_topics
import PmJobsTopic
33 from osm_nbi
.subscription_topics
import NslcmSubscriptionsTopic
34 from base64
import b64encode
35 from os
import urandom
# , path
36 from threading
import Lock
38 __author__
= "Alfonso Tierno <alfonso.tiernosepulveda@telefonica.com>"
39 min_common_version
= "0.1.16"
43 map_from_topic_to_class
= {
50 "nslcmops": NsLcmOpTopic
,
51 "vim_accounts": VimAccountTopic
,
52 "wim_accounts": WimAccountTopic
,
54 "k8sclusters": K8sClusterTopic
,
55 "k8srepos": K8sRepoTopic
,
56 "osmrepos": OsmRepoTopic
,
57 "users": UserTopicAuth
, # Valid for both internal and keystone authentication backends
58 "projects": ProjectTopicAuth
, # Valid for both internal and keystone authentication backends
59 "roles": RoleTopicAuth
, # Valid for both internal and keystone authentication backends
61 "nsilcmops": NsiLcmOpTopic
,
62 "vnfpkgops": VnfPkgOpTopic
,
63 "nslcm_subscriptions": NslcmSubscriptionsTopic
,
64 # [NEW_TOPIC]: add an entry here
65 # "pm_jobs": PmJobsTopic will be added manually because it needs other parameters
68 map_target_version_to_int
= {
72 # Add new versions here
75 def __init__(self
, authenticator
):
81 # self.operations = None
82 self
.logger
= logging
.getLogger("nbi.engine")
84 self
.write_lock
= None
85 # self.token_cache = token_cache
86 self
.authenticator
= authenticator
88 def start(self
, config
):
90 Connect to database, filesystem storage, and messaging
91 :param config: two level dictionary with configuration. Top level should contain 'database', 'storage',
95 # check right version of common
96 if versiontuple(common_version
) < versiontuple(min_common_version
):
97 raise EngineException("Not compatible osm/common version '{}'. Needed '{}' or higher".format(
98 common_version
, min_common_version
))
102 if config
["database"]["driver"] == "mongo":
103 self
.db
= dbmongo
.DbMongo()
104 self
.db
.db_connect(config
["database"])
105 elif config
["database"]["driver"] == "memory":
106 self
.db
= dbmemory
.DbMemory()
107 self
.db
.db_connect(config
["database"])
109 raise EngineException("Invalid configuration param '{}' at '[database]':'driver'".format(
110 config
["database"]["driver"]))
112 if config
["storage"]["driver"] == "local":
113 self
.fs
= fslocal
.FsLocal()
114 self
.fs
.fs_connect(config
["storage"])
115 elif config
["storage"]["driver"] == "mongo":
116 self
.fs
= fsmongo
.FsMongo()
117 self
.fs
.fs_connect(config
["storage"])
119 raise EngineException("Invalid configuration param '{}' at '[storage]':'driver'".format(
120 config
["storage"]["driver"]))
122 if config
["message"]["driver"] == "local":
123 self
.msg
= msglocal
.MsgLocal()
124 self
.msg
.connect(config
["message"])
125 elif config
["message"]["driver"] == "kafka":
126 self
.msg
= msgkafka
.MsgKafka()
127 self
.msg
.connect(config
["message"])
129 raise EngineException("Invalid configuration param '{}' at '[message]':'driver'".format(
130 config
["message"]["driver"]))
131 if not self
.authconn
:
132 if config
["authentication"]["backend"] == "keystone":
133 self
.authconn
= AuthconnKeystone(config
["authentication"], self
.db
,
134 self
.authenticator
.role_permissions
)
136 self
.authconn
= AuthconnInternal(config
["authentication"], self
.db
,
137 self
.authenticator
.role_permissions
)
138 # if not self.operations:
139 # if "resources_to_operations" in config["rbac"]:
140 # resources_to_operations_file = config["rbac"]["resources_to_operations"]
143 # __file__[:__file__.rfind("engine.py")] + "resources_to_operations.yml",
144 # "./resources_to_operations.yml"
146 # for config_file in possible_paths:
147 # if path.isfile(config_file):
148 # resources_to_operations_file = config_file
150 # if not resources_to_operations_file:
151 # raise EngineException("Invalid permission configuration:"
152 # "resources_to_operations file missing")
154 # with open(resources_to_operations_file, 'r') as f:
155 # resources_to_operations = yaml.load(f, Loader=yaml.Loader)
157 # self.operations = []
159 # for _, value in resources_to_operations["resources_to_operations"].items():
160 # if value not in self.operations:
161 # self.operations += [value]
163 self
.write_lock
= Lock()
164 # create one class per topic
165 for topic
, topic_class
in self
.map_from_topic_to_class
.items():
166 # if self.auth and topic_class in (UserTopicAuth, ProjectTopicAuth):
167 # self.map_topic[topic] = topic_class(self.db, self.fs, self.msg, self.auth)
168 self
.map_topic
[topic
] = topic_class(self
.db
, self
.fs
, self
.msg
, self
.authconn
)
170 self
.map_topic
["pm_jobs"] = PmJobsTopic(self
.db
, config
["prometheus"].get("host"),
171 config
["prometheus"].get("port"))
172 except (DbException
, FsException
, MsgException
) as e
:
173 raise EngineException(str(e
), http_code
=e
.http_code
)
178 self
.db
.db_disconnect()
180 self
.fs
.fs_disconnect()
182 self
.msg
.disconnect()
183 self
.write_lock
= None
184 except (DbException
, FsException
, MsgException
) as e
:
185 raise EngineException(str(e
), http_code
=e
.http_code
)
187 def new_item(self
, rollback
, session
, topic
, indata
=None, kwargs
=None, headers
=None):
189 Creates a new entry into database. For nsds and vnfds it creates an almost empty DISABLED entry,
190 that must be completed with a call to method upload_content
191 :param rollback: list to append created items at database in case a rollback must to be done
192 :param session: contains the used login username and working project, force to avoid checkins, public
193 :param topic: it can be: users, projects, vim_accounts, sdns, nsrs, nsds, vnfds
194 :param indata: data to be inserted
195 :param kwargs: used to override the indata descriptor
196 :param headers: http request headers
197 :return: _id: identity of the inserted data.
199 if topic
not in self
.map_topic
:
200 raise EngineException("Unknown topic {}!!!".format(topic
), HTTPStatus
.INTERNAL_SERVER_ERROR
)
201 with self
.write_lock
:
202 return self
.map_topic
[topic
].new(rollback
, session
, indata
, kwargs
, headers
)
204 def upload_content(self
, session
, topic
, _id
, indata
, kwargs
, headers
):
206 Upload content for an already created entry (_id)
207 :param session: contains the used login username and working project
208 :param topic: it can be: users, projects, vnfds, nsds,
209 :param _id: server id of the item
210 :param indata: data to be inserted
211 :param kwargs: used to override the indata descriptor
212 :param headers: http request headers
213 :return: _id: identity of the inserted data.
215 if topic
not in self
.map_topic
:
216 raise EngineException("Unknown topic {}!!!".format(topic
), HTTPStatus
.INTERNAL_SERVER_ERROR
)
217 with self
.write_lock
:
218 return self
.map_topic
[topic
].upload_content(session
, _id
, indata
, kwargs
, headers
)
220 def get_item_list(self
, session
, topic
, filter_q
=None):
223 :param session: contains the used login username and working project
224 :param topic: it can be: users, projects, vnfds, nsds, ...
225 :param filter_q: filter of data to be applied
226 :return: The list, it can be empty if no one match the filter_q.
228 if topic
not in self
.map_topic
:
229 raise EngineException("Unknown topic {}!!!".format(topic
), HTTPStatus
.INTERNAL_SERVER_ERROR
)
230 return self
.map_topic
[topic
].list(session
, filter_q
)
232 def get_item(self
, session
, topic
, _id
):
234 Get complete information on an item
235 :param session: contains the used login username and working project
236 :param topic: it can be: users, projects, vnfds, nsds,
237 :param _id: server id of the item
238 :return: dictionary, raise exception if not found.
240 if topic
not in self
.map_topic
:
241 raise EngineException("Unknown topic {}!!!".format(topic
), HTTPStatus
.INTERNAL_SERVER_ERROR
)
242 return self
.map_topic
[topic
].show(session
, _id
)
244 def get_file(self
, session
, topic
, _id
, path
=None, accept_header
=None):
246 Get descriptor package or artifact file content
247 :param session: contains the used login username and working project
248 :param topic: it can be: users, projects, vnfds, nsds,
249 :param _id: server id of the item
250 :param path: artifact path or "$DESCRIPTOR" or None
251 :param accept_header: Content of Accept header. Must contain applition/zip or/and text/plain
252 :return: opened file plus Accept format or raises an exception
254 if topic
not in self
.map_topic
:
255 raise EngineException("Unknown topic {}!!!".format(topic
), HTTPStatus
.INTERNAL_SERVER_ERROR
)
256 return self
.map_topic
[topic
].get_file(session
, _id
, path
, accept_header
)
258 def del_item_list(self
, session
, topic
, _filter
=None):
260 Delete a list of items
261 :param session: contains the used login username and working project
262 :param topic: it can be: users, projects, vnfds, nsds, ...
263 :param _filter: filter of data to be applied
264 :return: The deleted list, it can be empty if no one match the _filter.
266 if topic
not in self
.map_topic
:
267 raise EngineException("Unknown topic {}!!!".format(topic
), HTTPStatus
.INTERNAL_SERVER_ERROR
)
268 with self
.write_lock
:
269 return self
.map_topic
[topic
].delete_list(session
, _filter
)
271 def del_item(self
, session
, topic
, _id
, not_send_msg
=None):
273 Delete item by its internal id
274 :param session: contains the used login username and working project
275 :param topic: it can be: users, projects, vnfds, nsds, ...
276 :param _id: server id of the item
277 :param not_send_msg: If False, message will not be sent to kafka.
278 If a list, message is not sent, but content is stored in this variable so that the caller can send this
279 message using its own loop. If None, message is sent
280 :return: dictionary with deleted item _id. It raises exception if not found.
282 if topic
not in self
.map_topic
:
283 raise EngineException("Unknown topic {}!!!".format(topic
), HTTPStatus
.INTERNAL_SERVER_ERROR
)
284 with self
.write_lock
:
285 return self
.map_topic
[topic
].delete(session
, _id
, not_send_msg
=not_send_msg
)
287 def edit_item(self
, session
, topic
, _id
, indata
=None, kwargs
=None):
289 Update an existing entry at database
290 :param session: contains the used login username and working project
291 :param topic: it can be: users, projects, vnfds, nsds, ...
292 :param _id: identifier to be updated
293 :param indata: data to be inserted
294 :param kwargs: used to override the indata descriptor
295 :return: dictionary with edited item _id, raise exception if not found.
297 if topic
not in self
.map_topic
:
298 raise EngineException("Unknown topic {}!!!".format(topic
), HTTPStatus
.INTERNAL_SERVER_ERROR
)
299 with self
.write_lock
:
300 return self
.map_topic
[topic
].edit(session
, _id
, indata
, kwargs
)
302 def upgrade_db(self
, current_version
, target_version
):
303 if target_version
not in self
.map_target_version_to_int
.keys():
304 raise EngineException("Cannot upgrade to version '{}' with this version of code".format(target_version
),
305 http_code
=HTTPStatus
.INTERNAL_SERVER_ERROR
)
307 if current_version
== target_version
:
310 target_version_int
= self
.map_target_version_to_int
[target_version
]
312 if not current_version
:
313 # create database version
316 "_id": "version", # Always "version"
317 "version_int": 1000, # version number
318 "version": "1.0", # version text
319 "date": "2018-10-25", # version date
320 "description": "added serial", # changes in this version
321 'status': "ENABLED", # ENABLED, DISABLED (migration in process), ERROR,
322 'serial': b64encode(serial
)
324 self
.db
.create("admin", version_data
)
325 self
.db
.set_secret_key(serial
)
326 current_version
= "1.0"
328 if current_version
in ("1.0", "1.1") and target_version_int
>= self
.map_target_version_to_int
["1.2"]:
329 if self
.config
['authentication']['backend'] == "internal":
330 self
.db
.del_list("roles")
336 "date": "2019-06-11",
337 "description": "set new format for roles_operations"
340 self
.db
.set_one("admin", {"_id": "version"}, version_data
)
341 current_version
= "1.2"
342 # TODO add future migrations here
344 def init_db(self
, target_version
='1.0'):
346 Init database if empty. If not empty it checks that database version and migrates if needed
347 If empty, it creates a new user admin/admin at 'users' and a new entry at 'version'
348 :param target_version: check desired database version. Migrate to it if possible or raises exception
349 :return: None if ok, exception if error or if the version is different.
352 version_data
= self
.db
.get_one("admin", {"_id": "version"}, fail_on_empty
=False, fail_on_more
=True)
353 # check database status is ok
354 if version_data
and version_data
.get("status") != 'ENABLED':
355 raise EngineException("Wrong database status '{}'".format(
356 version_data
["status"]), HTTPStatus
.INTERNAL_SERVER_ERROR
)
359 db_version
= None if not version_data
else version_data
.get("version")
360 if db_version
!= target_version
:
361 self
.upgrade_db(db_version
, target_version
)