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
, 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
29 from osm_nbi
.admin_topics
import UserTopicAuth
, ProjectTopicAuth
, RoleTopicAuth
30 from osm_nbi
.descriptor_topics
import VnfdTopic
, NsdTopic
, PduTopic
, NstTopic
31 from osm_nbi
.instance_topics
import NsrTopic
, VnfrTopic
, NsLcmOpTopic
, NsiTopic
, NsiLcmOpTopic
32 from osm_nbi
.pmjobs_topics
import PmJobsTopic
33 from base64
import b64encode
34 from os
import urandom
, path
35 from threading
import Lock
37 __author__
= "Alfonso Tierno <alfonso.tiernosepulveda@telefonica.com>"
38 min_common_version
= "0.1.16"
42 map_from_topic_to_class
= {
49 "nslcmops": NsLcmOpTopic
,
50 "vim_accounts": VimAccountTopic
,
51 "wim_accounts": WimAccountTopic
,
53 "k8sclusters": K8sClusterTopic
,
54 "k8srepos": K8sRepoTopic
,
55 "users": UserTopicAuth
, # Valid for both internal and keystone authentication backends
56 "projects": ProjectTopicAuth
, # Valid for both internal and keystone authentication backends
57 "roles": RoleTopicAuth
, # Valid for both internal and keystone authentication backends
59 "nsilcmops": NsiLcmOpTopic
60 # [NEW_TOPIC]: add an entry here
61 # "pm_jobs": PmJobsTopic will be added manually because it needs other parameters
64 map_target_version_to_int
= {
68 # Add new versions here
77 self
.operations
= None
78 self
.logger
= logging
.getLogger("nbi.engine")
80 self
.write_lock
= None
82 def start(self
, config
):
84 Connect to database, filesystem storage, and messaging
85 :param config: two level dictionary with configuration. Top level should contain 'database', 'storage',
89 # check right version of common
90 if versiontuple(common_version
) < versiontuple(min_common_version
):
91 raise EngineException("Not compatible osm/common version '{}'. Needed '{}' or higher".format(
92 common_version
, min_common_version
))
96 if config
["database"]["driver"] == "mongo":
97 self
.db
= dbmongo
.DbMongo()
98 self
.db
.db_connect(config
["database"])
99 elif config
["database"]["driver"] == "memory":
100 self
.db
= dbmemory
.DbMemory()
101 self
.db
.db_connect(config
["database"])
103 raise EngineException("Invalid configuration param '{}' at '[database]':'driver'".format(
104 config
["database"]["driver"]))
106 if config
["storage"]["driver"] == "local":
107 self
.fs
= fslocal
.FsLocal()
108 self
.fs
.fs_connect(config
["storage"])
110 raise EngineException("Invalid configuration param '{}' at '[storage]':'driver'".format(
111 config
["storage"]["driver"]))
113 if config
["message"]["driver"] == "local":
114 self
.msg
= msglocal
.MsgLocal()
115 self
.msg
.connect(config
["message"])
116 elif config
["message"]["driver"] == "kafka":
117 self
.msg
= msgkafka
.MsgKafka()
118 self
.msg
.connect(config
["message"])
120 raise EngineException("Invalid configuration param '{}' at '[message]':'driver'".format(
121 config
["message"]["driver"]))
123 if config
["authentication"]["backend"] == "keystone":
124 self
.auth
= AuthconnKeystone(config
["authentication"], self
.db
, None)
126 self
.auth
= AuthconnInternal(config
["authentication"], self
.db
, dict())
127 if not self
.operations
:
128 if "resources_to_operations" in config
["rbac"]:
129 resources_to_operations_file
= config
["rbac"]["resources_to_operations"]
132 __file__
[:__file__
.rfind("engine.py")] + "resources_to_operations.yml",
133 "./resources_to_operations.yml"
135 for config_file
in possible_paths
:
136 if path
.isfile(config_file
):
137 resources_to_operations_file
= config_file
139 if not resources_to_operations_file
:
140 raise EngineException("Invalid permission configuration: resources_to_operations file missing")
142 with
open(resources_to_operations_file
, 'r') as f
:
143 resources_to_operations
= yaml
.load(f
, Loader
=yaml
.Loader
)
147 for _
, value
in resources_to_operations
["resources_to_operations"].items():
148 if value
not in self
.operations
:
149 self
.operations
+= [value
]
151 self
.write_lock
= Lock()
152 # create one class per topic
153 for topic
, topic_class
in self
.map_from_topic_to_class
.items():
154 # if self.auth and topic_class in (UserTopicAuth, ProjectTopicAuth):
155 # self.map_topic[topic] = topic_class(self.db, self.fs, self.msg, self.auth)
156 if self
.auth
and topic_class
== RoleTopicAuth
:
157 self
.map_topic
[topic
] = topic_class(self
.db
, self
.fs
, self
.msg
, self
.auth
,
160 self
.map_topic
[topic
] = topic_class(self
.db
, self
.fs
, self
.msg
, self
.auth
)
162 self
.map_topic
["pm_jobs"] = PmJobsTopic(self
.db
, config
["prometheus"].get("host"),
163 config
["prometheus"].get("port"))
164 except (DbException
, FsException
, MsgException
) as e
:
165 raise EngineException(str(e
), http_code
=e
.http_code
)
170 self
.db
.db_disconnect()
172 self
.fs
.fs_disconnect()
174 self
.msg
.disconnect()
175 self
.write_lock
= None
176 except (DbException
, FsException
, MsgException
) as e
:
177 raise EngineException(str(e
), http_code
=e
.http_code
)
179 def new_item(self
, rollback
, session
, topic
, indata
=None, kwargs
=None, headers
=None):
181 Creates a new entry into database. For nsds and vnfds it creates an almost empty DISABLED entry,
182 that must be completed with a call to method upload_content
183 :param rollback: list to append created items at database in case a rollback must to be done
184 :param session: contains the used login username and working project, force to avoid checkins, public
185 :param topic: it can be: users, projects, vim_accounts, sdns, nsrs, nsds, vnfds
186 :param indata: data to be inserted
187 :param kwargs: used to override the indata descriptor
188 :param headers: http request headers
189 :return: _id: identity of the inserted data.
191 if topic
not in self
.map_topic
:
192 raise EngineException("Unknown topic {}!!!".format(topic
), HTTPStatus
.INTERNAL_SERVER_ERROR
)
193 with self
.write_lock
:
194 return self
.map_topic
[topic
].new(rollback
, session
, indata
, kwargs
, headers
)
196 def upload_content(self
, session
, topic
, _id
, indata
, kwargs
, headers
):
198 Upload content for an already created entry (_id)
199 :param session: contains the used login username and working project
200 :param topic: it can be: users, projects, vnfds, nsds,
201 :param _id: server id of the item
202 :param indata: data to be inserted
203 :param kwargs: used to override the indata descriptor
204 :param headers: http request headers
205 :return: _id: identity of the inserted data.
207 if topic
not in self
.map_topic
:
208 raise EngineException("Unknown topic {}!!!".format(topic
), HTTPStatus
.INTERNAL_SERVER_ERROR
)
209 with self
.write_lock
:
210 return self
.map_topic
[topic
].upload_content(session
, _id
, indata
, kwargs
, headers
)
212 def get_item_list(self
, session
, topic
, filter_q
=None):
215 :param session: contains the used login username and working project
216 :param topic: it can be: users, projects, vnfds, nsds, ...
217 :param filter_q: filter of data to be applied
218 :return: The list, it can be empty if no one match the filter_q.
220 if topic
not in self
.map_topic
:
221 raise EngineException("Unknown topic {}!!!".format(topic
), HTTPStatus
.INTERNAL_SERVER_ERROR
)
222 return self
.map_topic
[topic
].list(session
, filter_q
)
224 def get_item(self
, session
, topic
, _id
):
226 Get complete information on an item
227 :param session: contains the used login username and working project
228 :param topic: it can be: users, projects, vnfds, nsds,
229 :param _id: server id of the item
230 :return: dictionary, raise exception if not found.
232 if topic
not in self
.map_topic
:
233 raise EngineException("Unknown topic {}!!!".format(topic
), HTTPStatus
.INTERNAL_SERVER_ERROR
)
234 return self
.map_topic
[topic
].show(session
, _id
)
236 def get_file(self
, session
, topic
, _id
, path
=None, accept_header
=None):
238 Get descriptor package or artifact file content
239 :param session: contains the used login username and working project
240 :param topic: it can be: users, projects, vnfds, nsds,
241 :param _id: server id of the item
242 :param path: artifact path or "$DESCRIPTOR" or None
243 :param accept_header: Content of Accept header. Must contain applition/zip or/and text/plain
244 :return: opened file plus Accept format or raises an exception
246 if topic
not in self
.map_topic
:
247 raise EngineException("Unknown topic {}!!!".format(topic
), HTTPStatus
.INTERNAL_SERVER_ERROR
)
248 return self
.map_topic
[topic
].get_file(session
, _id
, path
, accept_header
)
250 def del_item_list(self
, session
, topic
, _filter
=None):
252 Delete a list of items
253 :param session: contains the used login username and working project
254 :param topic: it can be: users, projects, vnfds, nsds, ...
255 :param _filter: filter of data to be applied
256 :return: The deleted list, it can be empty if no one match the _filter.
258 if topic
not in self
.map_topic
:
259 raise EngineException("Unknown topic {}!!!".format(topic
), HTTPStatus
.INTERNAL_SERVER_ERROR
)
260 with self
.write_lock
:
261 return self
.map_topic
[topic
].delete_list(session
, _filter
)
263 def del_item(self
, session
, topic
, _id
):
265 Delete item by its internal id
266 :param session: contains the used login username and working project
267 :param topic: it can be: users, projects, vnfds, nsds, ...
268 :param _id: server id of the item
269 :return: dictionary with deleted item _id. It raises exception if not found.
271 if topic
not in self
.map_topic
:
272 raise EngineException("Unknown topic {}!!!".format(topic
), HTTPStatus
.INTERNAL_SERVER_ERROR
)
273 with self
.write_lock
:
274 return self
.map_topic
[topic
].delete(session
, _id
)
276 def edit_item(self
, session
, topic
, _id
, indata
=None, kwargs
=None):
278 Update an existing entry at database
279 :param session: contains the used login username and working project
280 :param topic: it can be: users, projects, vnfds, nsds, ...
281 :param _id: identifier to be updated
282 :param indata: data to be inserted
283 :param kwargs: used to override the indata descriptor
284 :return: dictionary with edited item _id, raise exception if not found.
286 if topic
not in self
.map_topic
:
287 raise EngineException("Unknown topic {}!!!".format(topic
), HTTPStatus
.INTERNAL_SERVER_ERROR
)
288 with self
.write_lock
:
289 return self
.map_topic
[topic
].edit(session
, _id
, indata
, kwargs
)
291 def upgrade_db(self
, current_version
, target_version
):
292 if target_version
not in self
.map_target_version_to_int
.keys():
293 raise EngineException("Cannot upgrade to version '{}' with this version of code".format(target_version
),
294 http_code
=HTTPStatus
.INTERNAL_SERVER_ERROR
)
296 if current_version
== target_version
:
299 target_version_int
= self
.map_target_version_to_int
[target_version
]
301 if not current_version
:
302 # create database version
305 "_id": "version", # Always "version"
306 "version_int": 1000, # version number
307 "version": "1.0", # version text
308 "date": "2018-10-25", # version date
309 "description": "added serial", # changes in this version
310 'status': "ENABLED", # ENABLED, DISABLED (migration in process), ERROR,
311 'serial': b64encode(serial
)
313 self
.db
.create("admin", version_data
)
314 self
.db
.set_secret_key(serial
)
315 current_version
= "1.0"
317 if current_version
in ("1.0", "1.1") and target_version_int
>= self
.map_target_version_to_int
["1.2"]:
318 if self
.config
['authentication']['backend'] == "internal":
319 self
.db
.del_list("roles")
325 "date": "2019-06-11",
326 "description": "set new format for roles_operations"
329 self
.db
.set_one("admin", {"_id": "version"}, version_data
)
330 current_version
= "1.2"
331 # TODO add future migrations here
333 def init_db(self
, target_version
='1.0'):
335 Init database if empty. If not empty it checks that database version and migrates if needed
336 If empty, it creates a new user admin/admin at 'users' and a new entry at 'version'
337 :param target_version: check desired database version. Migrate to it if possible or raises exception
338 :return: None if ok, exception if error or if the version is different.
341 version_data
= self
.db
.get_one("admin", {"_id": "version"}, fail_on_empty
=False, fail_on_more
=True)
342 # check database status is ok
343 if version_data
and version_data
.get("status") != 'ENABLED':
344 raise EngineException("Wrong database status '{}'".format(
345 version_data
["status"]), HTTPStatus
.INTERNAL_SERVER_ERROR
)
348 db_version
= None if not version_data
else version_data
.get("version")
349 if db_version
!= target_version
:
350 self
.upgrade_db(db_version
, target_version
)