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## |
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# Copyright 2019 Telefonica Investigacion y Desarrollo, S.A.U. |
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# This file is part of OSM |
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# All Rights Reserved. |
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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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# |
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# For those usages not covered by the Apache License, Version 2.0 please |
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# contact with: nfvlabs@tid.es |
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## |
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|
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import asyncio |
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import logging |
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|
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from n2vc.config import EnvironConfig |
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from n2vc.definitions import RelationEndpoint |
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from n2vc.exceptions import ( |
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N2VCBadArgumentsException, |
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N2VCException, |
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N2VCConnectionException, |
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N2VCExecutionException, |
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N2VCApplicationExists, |
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JujuApplicationExists, |
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# N2VCNotFound, |
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MethodNotImplemented, |
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) |
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from n2vc.n2vc_conn import N2VCConnector |
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from n2vc.n2vc_conn import obj_to_dict, obj_to_yaml |
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from n2vc.libjuju import Libjuju, retry_callback |
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from n2vc.store import MotorStore |
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from n2vc.utils import get_ee_id_components, generate_random_alfanum_string |
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from n2vc.vca.connection import get_connection |
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from retrying_async import retry |
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from typing import Tuple |
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class N2VCJujuConnector(N2VCConnector): |
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|
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""" |
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#################################################################################### |
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################################### P U B L I C #################################### |
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#################################################################################### |
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""" |
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|
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BUILT_IN_CLOUDS = ["localhost", "microk8s"] |
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libjuju = None |
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|
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def __init__( |
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self, |
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db: object, |
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fs: object, |
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log: object = None, |
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on_update_db=None, |
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): |
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""" |
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Constructor |
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:param: db: Database object from osm_common |
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:param: fs: Filesystem object from osm_common |
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:param: log: Logger |
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:param: on_update_db: Callback function to be called for updating the database. |
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""" |
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# parent class constructor |
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N2VCConnector.__init__(self, db=db, fs=fs, log=log, on_update_db=on_update_db) |
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# silence websocket traffic log |
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logging.getLogger("websockets.protocol").setLevel(logging.INFO) |
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logging.getLogger("juju.client.connection").setLevel(logging.WARN) |
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logging.getLogger("model").setLevel(logging.WARN) |
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|
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self.log.info("Initializing N2VC juju connector...") |
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|
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db_uri = EnvironConfig(prefixes=["OSMLCM_", "OSMMON_"]).get("database_uri") |
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self._store = MotorStore(db_uri) |
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self.loading_libjuju = asyncio.Lock() |
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self.delete_namespace_locks = {} |
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self.log.info("N2VC juju connector initialized") |
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async def get_status( |
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self, namespace: str, yaml_format: bool = True, vca_id: str = None |
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): |
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""" |
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Get status from all juju models from a VCA |
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:param namespace: we obtain ns from namespace |
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:param yaml_format: returns a yaml string |
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:param: vca_id: VCA ID from which the status will be retrieved. |
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""" |
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# TODO: Review where is this function used. It is not optimal at all to get the status |
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# from all the juju models of a particular VCA. Additionally, these models might |
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# not have been deployed by OSM, in that case we are getting information from |
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# deployments outside of OSM's scope. |
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# self.log.info('Getting NS status. namespace: {}'.format(namespace)) |
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libjuju = await self._get_libjuju(vca_id) |
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|
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_nsi_id, ns_id, _vnf_id, _vdu_id, _vdu_count = self._get_namespace_components( |
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namespace=namespace |
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) |
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# model name is ns_id |
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model_name = ns_id |
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if model_name is None: |
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msg = "Namespace {} not valid".format(namespace) |
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self.log.error(msg) |
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raise N2VCBadArgumentsException(msg, ["namespace"]) |
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status = {} |
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models = await libjuju.list_models(contains=ns_id) |
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for m in models: |
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status[m] = await libjuju.get_model_status(m) |
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if yaml_format: |
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return obj_to_yaml(status) |
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else: |
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return obj_to_dict(status) |
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async def update_vca_status(self, vcastatus: dict, vca_id: str = None): |
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""" |
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Add all configs, actions, executed actions of all applications in a model to vcastatus dict. |
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:param vcastatus: dict containing vcaStatus |
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:param: vca_id: VCA ID |
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:return: None |
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""" |
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try: |
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libjuju = await self._get_libjuju(vca_id) |
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for model_name in vcastatus: |
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# Adding executed actions |
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vcastatus[model_name][ |
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"executedActions" |
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] = await libjuju.get_executed_actions(model_name) |
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for application in vcastatus[model_name]["applications"]: |
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# Adding application actions |
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vcastatus[model_name]["applications"][application][ |
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"actions" |
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] = await libjuju.get_actions(application, model_name) |
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# Adding application configs |
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vcastatus[model_name]["applications"][application][ |
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"configs" |
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] = await libjuju.get_application_configs(model_name, application) |
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except Exception as e: |
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self.log.debug("Error in updating vca status: {}".format(str(e))) |
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|
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async def create_execution_environment( |
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self, |
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namespace: str, |
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db_dict: dict, |
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reuse_ee_id: str = None, |
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progress_timeout: float = None, |
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total_timeout: float = None, |
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vca_id: str = None, |
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) -> (str, dict): |
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""" |
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Create an Execution Environment. Returns when it is created or raises an |
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exception on failing |
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:param: namespace: Contains a dot separate string. |
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LCM will use: [<nsi-id>].<ns-id>.<vnf-id>.<vdu-id>[-<count>] |
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:param: db_dict: where to write to database when the status changes. |
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It contains a dictionary with {collection: str, filter: {}, path: str}, |
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e.g. {collection: "nsrs", filter: {_id: <nsd-id>, path: |
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"_admin.deployed.VCA.3"} |
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:param: reuse_ee_id: ee id from an older execution. It allows us to reuse an |
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older environment |
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:param: progress_timeout: Progress timeout |
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:param: total_timeout: Total timeout |
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:param: vca_id: VCA ID |
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|
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:returns: id of the new execution environment and credentials for it |
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(credentials can contains hostname, username, etc depending on underlying cloud) |
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""" |
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self.log.info( |
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"Creating execution environment. namespace: {}, reuse_ee_id: {}".format( |
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namespace, reuse_ee_id |
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) |
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) |
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libjuju = await self._get_libjuju(vca_id) |
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|
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machine_id = None |
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if reuse_ee_id: |
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model_name, application_name, machine_id = self._get_ee_id_components( |
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ee_id=reuse_ee_id |
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) |
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else: |
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( |
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_nsi_id, |
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ns_id, |
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_vnf_id, |
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_vdu_id, |
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_vdu_count, |
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) = self._get_namespace_components(namespace=namespace) |
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# model name is ns_id |
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model_name = ns_id |
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# application name |
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application_name = self._get_application_name(namespace=namespace) |
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|
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self.log.debug( |
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"model name: {}, application name: {}, machine_id: {}".format( |
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model_name, application_name, machine_id |
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) |
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) |
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|
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# create or reuse a new juju machine |
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try: |
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if not await libjuju.model_exists(model_name): |
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await libjuju.add_model(model_name, libjuju.vca_connection.lxd_cloud) |
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machine, new = await libjuju.create_machine( |
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model_name=model_name, |
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machine_id=machine_id, |
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db_dict=db_dict, |
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progress_timeout=progress_timeout, |
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total_timeout=total_timeout, |
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) |
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# id for the execution environment |
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ee_id = N2VCJujuConnector._build_ee_id( |
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model_name=model_name, |
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application_name=application_name, |
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machine_id=str(machine.entity_id), |
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) |
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self.log.debug("ee_id: {}".format(ee_id)) |
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|
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if new: |
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# write ee_id in database |
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self._write_ee_id_db(db_dict=db_dict, ee_id=ee_id) |
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|
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except Exception as e: |
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message = "Error creating machine on juju: {}".format(e) |
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self.log.error(message) |
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raise N2VCException(message=message) |
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|
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# new machine credentials |
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credentials = {"hostname": machine.dns_name} |
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|
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self.log.info( |
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"Execution environment created. ee_id: {}, credentials: {}".format( |
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ee_id, credentials |
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) |
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) |
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|
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return ee_id, credentials |
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|
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async def register_execution_environment( |
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self, |
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namespace: str, |
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credentials: dict, |
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db_dict: dict, |
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progress_timeout: float = None, |
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total_timeout: float = None, |
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vca_id: str = None, |
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) -> str: |
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""" |
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Register an existing execution environment at the VCA |
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|
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:param: namespace: Contains a dot separate string. |
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LCM will use: [<nsi-id>].<ns-id>.<vnf-id>.<vdu-id>[-<count>] |
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:param: credentials: credentials to access the existing execution environment |
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(it can contains hostname, username, path to private key, |
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etc depending on underlying cloud) |
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:param: db_dict: where to write to database when the status changes. |
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It contains a dictionary with {collection: str, filter: {}, path: str}, |
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e.g. {collection: "nsrs", filter: {_id: <nsd-id>, path: |
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"_admin.deployed.VCA.3"} |
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|
:param: reuse_ee_id: ee id from an older execution. It allows us to reuse an |
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|
older environment |
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|
:param: progress_timeout: Progress timeout |
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|
:param: total_timeout: Total timeout |
| 282 |
|
:param: vca_id: VCA ID |
| 283 |
|
|
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|
:returns: id of the execution environment |
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|
""" |
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self.log.info( |
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|
"Registering execution environment. namespace={}, credentials={}".format( |
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|
namespace, credentials |
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) |
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|
) |
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libjuju = await self._get_libjuju(vca_id) |
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|
|
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0 |
if credentials is None: |
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0 |
raise N2VCBadArgumentsException( |
| 295 |
|
message="credentials are mandatory", bad_args=["credentials"] |
| 296 |
|
) |
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0 |
if credentials.get("hostname"): |
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0 |
hostname = credentials["hostname"] |
| 299 |
|
else: |
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0 |
raise N2VCBadArgumentsException( |
| 301 |
|
message="hostname is mandatory", bad_args=["credentials.hostname"] |
| 302 |
|
) |
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0 |
if credentials.get("username"): |
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0 |
username = credentials["username"] |
| 305 |
|
else: |
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0 |
raise N2VCBadArgumentsException( |
| 307 |
|
message="username is mandatory", bad_args=["credentials.username"] |
| 308 |
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) |
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if "private_key_path" in credentials: |
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private_key_path = credentials["private_key_path"] |
| 311 |
|
else: |
| 312 |
|
# if not passed as argument, use generated private key path |
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0 |
private_key_path = self.private_key_path |
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|
|
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0 |
_nsi_id, ns_id, _vnf_id, _vdu_id, _vdu_count = self._get_namespace_components( |
| 316 |
|
namespace=namespace |
| 317 |
|
) |
| 318 |
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|
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|
# model name |
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0 |
model_name = ns_id |
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|
# application name |
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0 |
application_name = self._get_application_name(namespace=namespace) |
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|
|
| 324 |
|
# register machine on juju |
| 325 |
0 |
try: |
| 326 |
0 |
if not await libjuju.model_exists(model_name): |
| 327 |
0 |
await libjuju.add_model(model_name, libjuju.vca_connection.lxd_cloud) |
| 328 |
0 |
machine_id = await libjuju.provision_machine( |
| 329 |
|
model_name=model_name, |
| 330 |
|
hostname=hostname, |
| 331 |
|
username=username, |
| 332 |
|
private_key_path=private_key_path, |
| 333 |
|
db_dict=db_dict, |
| 334 |
|
progress_timeout=progress_timeout, |
| 335 |
|
total_timeout=total_timeout, |
| 336 |
|
) |
| 337 |
0 |
except Exception as e: |
| 338 |
0 |
self.log.error("Error registering machine: {}".format(e)) |
| 339 |
0 |
raise N2VCException( |
| 340 |
|
message="Error registering machine on juju: {}".format(e) |
| 341 |
|
) |
| 342 |
|
|
| 343 |
0 |
self.log.info("Machine registered: {}".format(machine_id)) |
| 344 |
|
|
| 345 |
|
# id for the execution environment |
| 346 |
0 |
ee_id = N2VCJujuConnector._build_ee_id( |
| 347 |
|
model_name=model_name, |
| 348 |
|
application_name=application_name, |
| 349 |
|
machine_id=str(machine_id), |
| 350 |
|
) |
| 351 |
|
|
| 352 |
0 |
self.log.info("Execution environment registered. ee_id: {}".format(ee_id)) |
| 353 |
|
|
| 354 |
0 |
return ee_id |
| 355 |
|
|
| 356 |
|
# In case of native_charm is being deployed, if JujuApplicationExists error happens |
| 357 |
|
# it will try to add_unit |
| 358 |
1 |
@retry( |
| 359 |
|
attempts=3, |
| 360 |
|
delay=5, |
| 361 |
|
retry_exceptions=(N2VCApplicationExists,), |
| 362 |
|
timeout=None, |
| 363 |
|
callback=retry_callback, |
| 364 |
|
) |
| 365 |
1 |
async def install_configuration_sw( |
| 366 |
|
self, |
| 367 |
|
ee_id: str, |
| 368 |
|
artifact_path: str, |
| 369 |
|
db_dict: dict, |
| 370 |
|
progress_timeout: float = None, |
| 371 |
|
total_timeout: float = None, |
| 372 |
|
config: dict = None, |
| 373 |
|
num_units: int = 1, |
| 374 |
|
vca_id: str = None, |
| 375 |
|
scaling_out: bool = False, |
| 376 |
|
vca_type: str = None, |
| 377 |
|
): |
| 378 |
|
""" |
| 379 |
|
Install the software inside the execution environment identified by ee_id |
| 380 |
|
|
| 381 |
|
:param: ee_id: the id of the execution environment returned by |
| 382 |
|
create_execution_environment or register_execution_environment |
| 383 |
|
:param: artifact_path: where to locate the artifacts (parent folder) using |
| 384 |
|
the self.fs |
| 385 |
|
the final artifact path will be a combination of this |
| 386 |
|
artifact_path and additional string from the config_dict |
| 387 |
|
(e.g. charm name) |
| 388 |
|
:param: db_dict: where to write into database when the status changes. |
| 389 |
|
It contains a dict with |
| 390 |
|
{collection: <str>, filter: {}, path: <str>}, |
| 391 |
|
e.g. {collection: "nsrs", filter: |
| 392 |
|
{_id: <nsd-id>, path: "_admin.deployed.VCA.3"} |
| 393 |
|
:param: progress_timeout: Progress timeout |
| 394 |
|
:param: total_timeout: Total timeout |
| 395 |
|
:param: config: Dictionary with deployment config information. |
| 396 |
|
:param: num_units: Number of units to deploy of a particular charm. |
| 397 |
|
:param: vca_id: VCA ID |
| 398 |
|
:param: scaling_out: Boolean to indicate if it is a scaling out operation |
| 399 |
|
:param: vca_type: VCA type |
| 400 |
|
""" |
| 401 |
|
|
| 402 |
0 |
self.log.info( |
| 403 |
|
( |
| 404 |
|
"Installing configuration sw on ee_id: {}, " |
| 405 |
|
"artifact path: {}, db_dict: {}" |
| 406 |
|
).format(ee_id, artifact_path, db_dict) |
| 407 |
|
) |
| 408 |
0 |
libjuju = await self._get_libjuju(vca_id) |
| 409 |
|
|
| 410 |
|
# check arguments |
| 411 |
0 |
if ee_id is None or len(ee_id) == 0: |
| 412 |
0 |
raise N2VCBadArgumentsException( |
| 413 |
|
message="ee_id is mandatory", bad_args=["ee_id"] |
| 414 |
|
) |
| 415 |
0 |
if artifact_path is None or len(artifact_path) == 0: |
| 416 |
0 |
raise N2VCBadArgumentsException( |
| 417 |
|
message="artifact_path is mandatory", bad_args=["artifact_path"] |
| 418 |
|
) |
| 419 |
0 |
if db_dict is None: |
| 420 |
0 |
raise N2VCBadArgumentsException( |
| 421 |
|
message="db_dict is mandatory", bad_args=["db_dict"] |
| 422 |
|
) |
| 423 |
|
|
| 424 |
0 |
try: |
| 425 |
0 |
( |
| 426 |
|
model_name, |
| 427 |
|
application_name, |
| 428 |
|
machine_id, |
| 429 |
|
) = N2VCJujuConnector._get_ee_id_components(ee_id=ee_id) |
| 430 |
0 |
self.log.debug( |
| 431 |
|
"model: {}, application: {}, machine: {}".format( |
| 432 |
|
model_name, application_name, machine_id |
| 433 |
|
) |
| 434 |
|
) |
| 435 |
0 |
except Exception: |
| 436 |
0 |
raise N2VCBadArgumentsException( |
| 437 |
|
message="ee_id={} is not a valid execution environment id".format( |
| 438 |
|
ee_id |
| 439 |
|
), |
| 440 |
|
bad_args=["ee_id"], |
| 441 |
|
) |
| 442 |
|
|
| 443 |
|
# remove // in charm path |
| 444 |
0 |
while artifact_path.find("//") >= 0: |
| 445 |
0 |
artifact_path = artifact_path.replace("//", "/") |
| 446 |
|
|
| 447 |
|
# check charm path |
| 448 |
0 |
if not self.fs.file_exists(artifact_path): |
| 449 |
0 |
msg = "artifact path does not exist: {}".format(artifact_path) |
| 450 |
0 |
raise N2VCBadArgumentsException(message=msg, bad_args=["artifact_path"]) |
| 451 |
|
|
| 452 |
0 |
if artifact_path.startswith("/"): |
| 453 |
0 |
full_path = self.fs.path + artifact_path |
| 454 |
|
else: |
| 455 |
0 |
full_path = self.fs.path + "/" + artifact_path |
| 456 |
|
|
| 457 |
0 |
try: |
| 458 |
0 |
if vca_type == "native_charm" and await libjuju.check_application_exists( |
| 459 |
|
model_name, application_name |
| 460 |
|
): |
| 461 |
0 |
await libjuju.add_unit( |
| 462 |
|
application_name=application_name, |
| 463 |
|
model_name=model_name, |
| 464 |
|
machine_id=machine_id, |
| 465 |
|
db_dict=db_dict, |
| 466 |
|
progress_timeout=progress_timeout, |
| 467 |
|
total_timeout=total_timeout, |
| 468 |
|
) |
| 469 |
|
else: |
| 470 |
0 |
await libjuju.deploy_charm( |
| 471 |
|
model_name=model_name, |
| 472 |
|
application_name=application_name, |
| 473 |
|
path=full_path, |
| 474 |
|
machine_id=machine_id, |
| 475 |
|
db_dict=db_dict, |
| 476 |
|
progress_timeout=progress_timeout, |
| 477 |
|
total_timeout=total_timeout, |
| 478 |
|
config=config, |
| 479 |
|
num_units=num_units, |
| 480 |
|
) |
| 481 |
0 |
except JujuApplicationExists as e: |
| 482 |
0 |
raise N2VCApplicationExists( |
| 483 |
|
message="Error deploying charm into ee={} : {}".format(ee_id, e.message) |
| 484 |
|
) |
| 485 |
0 |
except Exception as e: |
| 486 |
0 |
raise N2VCException( |
| 487 |
|
message="Error deploying charm into ee={} : {}".format(ee_id, e) |
| 488 |
|
) |
| 489 |
|
|
| 490 |
0 |
self.log.info("Configuration sw installed") |
| 491 |
|
|
| 492 |
1 |
async def install_k8s_proxy_charm( |
| 493 |
|
self, |
| 494 |
|
charm_name: str, |
| 495 |
|
namespace: str, |
| 496 |
|
artifact_path: str, |
| 497 |
|
db_dict: dict, |
| 498 |
|
progress_timeout: float = None, |
| 499 |
|
total_timeout: float = None, |
| 500 |
|
config: dict = None, |
| 501 |
|
vca_id: str = None, |
| 502 |
|
) -> str: |
| 503 |
|
""" |
| 504 |
|
Install a k8s proxy charm |
| 505 |
|
|
| 506 |
|
:param charm_name: Name of the charm being deployed |
| 507 |
|
:param namespace: collection of all the uuids related to the charm. |
| 508 |
|
:param str artifact_path: where to locate the artifacts (parent folder) using |
| 509 |
|
the self.fs |
| 510 |
|
the final artifact path will be a combination of this artifact_path and |
| 511 |
|
additional string from the config_dict (e.g. charm name) |
| 512 |
|
:param dict db_dict: where to write into database when the status changes. |
| 513 |
|
It contains a dict with |
| 514 |
|
{collection: <str>, filter: {}, path: <str>}, |
| 515 |
|
e.g. {collection: "nsrs", filter: |
| 516 |
|
{_id: <nsd-id>, path: "_admin.deployed.VCA.3"} |
| 517 |
|
:param: progress_timeout: Progress timeout |
| 518 |
|
:param: total_timeout: Total timeout |
| 519 |
|
:param config: Dictionary with additional configuration |
| 520 |
|
:param vca_id: VCA ID |
| 521 |
|
|
| 522 |
|
:returns ee_id: execution environment id. |
| 523 |
|
""" |
| 524 |
1 |
self.log.info( |
| 525 |
|
"Installing k8s proxy charm: {}, artifact path: {}, db_dict: {}".format( |
| 526 |
|
charm_name, artifact_path, db_dict |
| 527 |
|
) |
| 528 |
|
) |
| 529 |
1 |
libjuju = await self._get_libjuju(vca_id) |
| 530 |
|
|
| 531 |
1 |
if artifact_path is None or len(artifact_path) == 0: |
| 532 |
1 |
raise N2VCBadArgumentsException( |
| 533 |
|
message="artifact_path is mandatory", bad_args=["artifact_path"] |
| 534 |
|
) |
| 535 |
1 |
if db_dict is None: |
| 536 |
1 |
raise N2VCBadArgumentsException( |
| 537 |
|
message="db_dict is mandatory", bad_args=["db_dict"] |
| 538 |
|
) |
| 539 |
|
|
| 540 |
|
# remove // in charm path |
| 541 |
1 |
while artifact_path.find("//") >= 0: |
| 542 |
0 |
artifact_path = artifact_path.replace("//", "/") |
| 543 |
|
|
| 544 |
|
# check charm path |
| 545 |
1 |
if not self.fs.file_exists(artifact_path): |
| 546 |
1 |
msg = "artifact path does not exist: {}".format(artifact_path) |
| 547 |
1 |
raise N2VCBadArgumentsException(message=msg, bad_args=["artifact_path"]) |
| 548 |
|
|
| 549 |
1 |
if artifact_path.startswith("/"): |
| 550 |
0 |
full_path = self.fs.path + artifact_path |
| 551 |
|
else: |
| 552 |
1 |
full_path = self.fs.path + "/" + artifact_path |
| 553 |
|
|
| 554 |
1 |
_, ns_id, _, _, _ = self._get_namespace_components(namespace=namespace) |
| 555 |
1 |
model_name = "{}-k8s".format(ns_id) |
| 556 |
1 |
if not await libjuju.model_exists(model_name): |
| 557 |
1 |
await libjuju.add_model(model_name, libjuju.vca_connection.k8s_cloud) |
| 558 |
1 |
application_name = self._get_application_name(namespace) |
| 559 |
|
|
| 560 |
1 |
try: |
| 561 |
1 |
await libjuju.deploy_charm( |
| 562 |
|
model_name=model_name, |
| 563 |
|
application_name=application_name, |
| 564 |
|
path=full_path, |
| 565 |
|
machine_id=None, |
| 566 |
|
db_dict=db_dict, |
| 567 |
|
progress_timeout=progress_timeout, |
| 568 |
|
total_timeout=total_timeout, |
| 569 |
|
config=config, |
| 570 |
|
) |
| 571 |
1 |
except Exception as e: |
| 572 |
1 |
raise N2VCException(message="Error deploying charm: {}".format(e)) |
| 573 |
|
|
| 574 |
1 |
self.log.info("K8s proxy charm installed") |
| 575 |
1 |
ee_id = N2VCJujuConnector._build_ee_id( |
| 576 |
|
model_name=model_name, application_name=application_name, machine_id="k8s" |
| 577 |
|
) |
| 578 |
|
|
| 579 |
1 |
self._write_ee_id_db(db_dict=db_dict, ee_id=ee_id) |
| 580 |
|
|
| 581 |
1 |
return ee_id |
| 582 |
|
|
| 583 |
1 |
async def get_ee_ssh_public__key( |
| 584 |
|
self, |
| 585 |
|
ee_id: str, |
| 586 |
|
db_dict: dict, |
| 587 |
|
progress_timeout: float = None, |
| 588 |
|
total_timeout: float = None, |
| 589 |
|
vca_id: str = None, |
| 590 |
|
) -> str: |
| 591 |
|
""" |
| 592 |
|
Get Execution environment ssh public key |
| 593 |
|
|
| 594 |
|
:param: ee_id: the id of the execution environment returned by |
| 595 |
|
create_execution_environment or register_execution_environment |
| 596 |
|
:param: db_dict: where to write into database when the status changes. |
| 597 |
|
It contains a dict with |
| 598 |
|
{collection: <str>, filter: {}, path: <str>}, |
| 599 |
|
e.g. {collection: "nsrs", filter: |
| 600 |
|
{_id: <nsd-id>, path: "_admin.deployed.VCA.3"} |
| 601 |
|
:param: progress_timeout: Progress timeout |
| 602 |
|
:param: total_timeout: Total timeout |
| 603 |
|
:param vca_id: VCA ID |
| 604 |
|
:returns: public key of the execution environment |
| 605 |
|
For the case of juju proxy charm ssh-layered, it is the one |
| 606 |
|
returned by 'get-ssh-public-key' primitive. |
| 607 |
|
It raises a N2VC exception if fails |
| 608 |
|
""" |
| 609 |
|
|
| 610 |
0 |
self.log.info( |
| 611 |
|
( |
| 612 |
|
"Generating priv/pub key pair and get pub key on ee_id: {}, db_dict: {}" |
| 613 |
|
).format(ee_id, db_dict) |
| 614 |
|
) |
| 615 |
0 |
libjuju = await self._get_libjuju(vca_id) |
| 616 |
|
|
| 617 |
|
# check arguments |
| 618 |
0 |
if ee_id is None or len(ee_id) == 0: |
| 619 |
0 |
raise N2VCBadArgumentsException( |
| 620 |
|
message="ee_id is mandatory", bad_args=["ee_id"] |
| 621 |
|
) |
| 622 |
0 |
if db_dict is None: |
| 623 |
0 |
raise N2VCBadArgumentsException( |
| 624 |
|
message="db_dict is mandatory", bad_args=["db_dict"] |
| 625 |
|
) |
| 626 |
|
|
| 627 |
0 |
try: |
| 628 |
0 |
( |
| 629 |
|
model_name, |
| 630 |
|
application_name, |
| 631 |
|
machine_id, |
| 632 |
|
) = N2VCJujuConnector._get_ee_id_components(ee_id=ee_id) |
| 633 |
0 |
self.log.debug( |
| 634 |
|
"model: {}, application: {}, machine: {}".format( |
| 635 |
|
model_name, application_name, machine_id |
| 636 |
|
) |
| 637 |
|
) |
| 638 |
0 |
except Exception: |
| 639 |
0 |
raise N2VCBadArgumentsException( |
| 640 |
|
message="ee_id={} is not a valid execution environment id".format( |
| 641 |
|
ee_id |
| 642 |
|
), |
| 643 |
|
bad_args=["ee_id"], |
| 644 |
|
) |
| 645 |
|
|
| 646 |
|
# try to execute ssh layer primitives (if exist): |
| 647 |
|
# generate-ssh-key |
| 648 |
|
# get-ssh-public-key |
| 649 |
|
|
| 650 |
0 |
output = None |
| 651 |
|
|
| 652 |
0 |
application_name = N2VCJujuConnector._format_app_name(application_name) |
| 653 |
|
|
| 654 |
|
# execute action: generate-ssh-key |
| 655 |
0 |
try: |
| 656 |
0 |
output, _status = await libjuju.execute_action( |
| 657 |
|
model_name=model_name, |
| 658 |
|
application_name=application_name, |
| 659 |
|
action_name="generate-ssh-key", |
| 660 |
|
db_dict=db_dict, |
| 661 |
|
progress_timeout=progress_timeout, |
| 662 |
|
total_timeout=total_timeout, |
| 663 |
|
) |
| 664 |
0 |
except Exception as e: |
| 665 |
0 |
self.log.info( |
| 666 |
|
"Skipping exception while executing action generate-ssh-key: {}".format( |
| 667 |
|
e |
| 668 |
|
) |
| 669 |
|
) |
| 670 |
|
|
| 671 |
|
# execute action: get-ssh-public-key |
| 672 |
0 |
try: |
| 673 |
0 |
output, _status = await libjuju.execute_action( |
| 674 |
|
model_name=model_name, |
| 675 |
|
application_name=application_name, |
| 676 |
|
action_name="get-ssh-public-key", |
| 677 |
|
db_dict=db_dict, |
| 678 |
|
progress_timeout=progress_timeout, |
| 679 |
|
total_timeout=total_timeout, |
| 680 |
|
) |
| 681 |
0 |
except Exception as e: |
| 682 |
0 |
msg = "Cannot execute action get-ssh-public-key: {}\n".format(e) |
| 683 |
0 |
self.log.info(msg) |
| 684 |
0 |
raise N2VCExecutionException(e, primitive_name="get-ssh-public-key") |
| 685 |
|
|
| 686 |
|
# return public key if exists |
| 687 |
0 |
return output["pubkey"] if "pubkey" in output else output |
| 688 |
|
|
| 689 |
1 |
async def get_metrics( |
| 690 |
|
self, model_name: str, application_name: str, vca_id: str = None |
| 691 |
|
) -> dict: |
| 692 |
|
""" |
| 693 |
|
Get metrics from application |
| 694 |
|
|
| 695 |
|
:param: model_name: Model name |
| 696 |
|
:param: application_name: Application name |
| 697 |
|
:param: vca_id: VCA ID |
| 698 |
|
|
| 699 |
|
:return: Dictionary with obtained metrics |
| 700 |
|
""" |
| 701 |
1 |
libjuju = await self._get_libjuju(vca_id) |
| 702 |
1 |
return await libjuju.get_metrics(model_name, application_name) |
| 703 |
|
|
| 704 |
1 |
async def add_relation( |
| 705 |
|
self, provider: RelationEndpoint, requirer: RelationEndpoint |
| 706 |
|
): |
| 707 |
|
""" |
| 708 |
|
Add relation between two charmed endpoints |
| 709 |
|
|
| 710 |
|
:param: provider: Provider relation endpoint |
| 711 |
|
:param: requirer: Requirer relation endpoint |
| 712 |
|
""" |
| 713 |
1 |
self.log.debug(f"adding new relation between {provider} and {requirer}") |
| 714 |
1 |
cross_model_relation = ( |
| 715 |
|
provider.model_name != requirer.model_name |
| 716 |
|
or provider.vca_id != requirer.vca_id |
| 717 |
|
) |
| 718 |
1 |
try: |
| 719 |
1 |
if cross_model_relation: |
| 720 |
|
# Cross-model relation |
| 721 |
1 |
provider_libjuju = await self._get_libjuju(provider.vca_id) |
| 722 |
1 |
requirer_libjuju = await self._get_libjuju(requirer.vca_id) |
| 723 |
1 |
offer = await provider_libjuju.offer(provider) |
| 724 |
1 |
if offer: |
| 725 |
1 |
saas_name = await requirer_libjuju.consume( |
| 726 |
|
requirer.model_name, offer, provider_libjuju |
| 727 |
|
) |
| 728 |
1 |
await requirer_libjuju.add_relation( |
| 729 |
|
requirer.model_name, requirer.endpoint, saas_name |
| 730 |
|
) |
| 731 |
|
else: |
| 732 |
|
# Standard relation |
| 733 |
1 |
vca_id = provider.vca_id |
| 734 |
1 |
model = provider.model_name |
| 735 |
1 |
libjuju = await self._get_libjuju(vca_id) |
| 736 |
|
# add juju relations between two applications |
| 737 |
1 |
await libjuju.add_relation( |
| 738 |
|
model_name=model, |
| 739 |
|
endpoint_1=provider.endpoint, |
| 740 |
|
endpoint_2=requirer.endpoint, |
| 741 |
|
) |
| 742 |
1 |
except Exception as e: |
| 743 |
1 |
message = f"Error adding relation between {provider} and {requirer}: {e}" |
| 744 |
1 |
self.log.error(message) |
| 745 |
1 |
raise N2VCException(message=message) |
| 746 |
|
|
| 747 |
1 |
async def remove_relation(self): |
| 748 |
|
# TODO |
| 749 |
0 |
self.log.info("Method not implemented yet") |
| 750 |
0 |
raise MethodNotImplemented() |
| 751 |
|
|
| 752 |
1 |
async def deregister_execution_environments(self): |
| 753 |
0 |
self.log.info("Method not implemented yet") |
| 754 |
0 |
raise MethodNotImplemented() |
| 755 |
|
|
| 756 |
1 |
async def delete_namespace( |
| 757 |
|
self, |
| 758 |
|
namespace: str, |
| 759 |
|
db_dict: dict = None, |
| 760 |
|
total_timeout: float = None, |
| 761 |
|
vca_id: str = None, |
| 762 |
|
): |
| 763 |
|
""" |
| 764 |
|
Remove a network scenario and its execution environments |
| 765 |
|
:param: namespace: [<nsi-id>].<ns-id> |
| 766 |
|
:param: db_dict: where to write into database when the status changes. |
| 767 |
|
It contains a dict with |
| 768 |
|
{collection: <str>, filter: {}, path: <str>}, |
| 769 |
|
e.g. {collection: "nsrs", filter: |
| 770 |
|
{_id: <nsd-id>, path: "_admin.deployed.VCA.3"} |
| 771 |
|
:param: total_timeout: Total timeout |
| 772 |
|
:param: vca_id: VCA ID |
| 773 |
|
""" |
| 774 |
0 |
self.log.info("Deleting namespace={}".format(namespace)) |
| 775 |
0 |
will_not_delete = False |
| 776 |
0 |
if namespace not in self.delete_namespace_locks: |
| 777 |
0 |
self.delete_namespace_locks[namespace] = asyncio.Lock() |
| 778 |
0 |
delete_lock = self.delete_namespace_locks[namespace] |
| 779 |
|
|
| 780 |
0 |
while delete_lock.locked(): |
| 781 |
0 |
will_not_delete = True |
| 782 |
0 |
await asyncio.sleep(0.1) |
| 783 |
|
|
| 784 |
0 |
if will_not_delete: |
| 785 |
0 |
self.log.info("Namespace {} deleted by another worker.".format(namespace)) |
| 786 |
0 |
return |
| 787 |
|
|
| 788 |
0 |
try: |
| 789 |
0 |
async with delete_lock: |
| 790 |
0 |
libjuju = await self._get_libjuju(vca_id) |
| 791 |
|
|
| 792 |
|
# check arguments |
| 793 |
0 |
if namespace is None: |
| 794 |
0 |
raise N2VCBadArgumentsException( |
| 795 |
|
message="namespace is mandatory", bad_args=["namespace"] |
| 796 |
|
) |
| 797 |
|
|
| 798 |
0 |
( |
| 799 |
|
_nsi_id, |
| 800 |
|
ns_id, |
| 801 |
|
_vnf_id, |
| 802 |
|
_vdu_id, |
| 803 |
|
_vdu_count, |
| 804 |
|
) = self._get_namespace_components(namespace=namespace) |
| 805 |
0 |
if ns_id is not None: |
| 806 |
0 |
try: |
| 807 |
0 |
models = await libjuju.list_models(contains=ns_id) |
| 808 |
0 |
for model in models: |
| 809 |
0 |
await libjuju.destroy_model( |
| 810 |
|
model_name=model, total_timeout=total_timeout |
| 811 |
|
) |
| 812 |
0 |
except Exception as e: |
| 813 |
0 |
self.log.error(f"Error deleting namespace {namespace} : {e}") |
| 814 |
0 |
raise N2VCException( |
| 815 |
|
message="Error deleting namespace {} : {}".format( |
| 816 |
|
namespace, e |
| 817 |
|
) |
| 818 |
|
) |
| 819 |
|
else: |
| 820 |
0 |
raise N2VCBadArgumentsException( |
| 821 |
|
message="only ns_id is permitted to delete yet", |
| 822 |
|
bad_args=["namespace"], |
| 823 |
|
) |
| 824 |
0 |
except Exception as e: |
| 825 |
0 |
self.log.error(f"Error deleting namespace {namespace} : {e}") |
| 826 |
0 |
raise e |
| 827 |
|
finally: |
| 828 |
0 |
self.delete_namespace_locks.pop(namespace) |
| 829 |
0 |
self.log.info("Namespace {} deleted".format(namespace)) |
| 830 |
|
|
| 831 |
1 |
async def delete_execution_environment( |
| 832 |
|
self, |
| 833 |
|
ee_id: str, |
| 834 |
|
db_dict: dict = None, |
| 835 |
|
total_timeout: float = None, |
| 836 |
|
scaling_in: bool = False, |
| 837 |
|
vca_type: str = None, |
| 838 |
|
vca_id: str = None, |
| 839 |
|
application_to_delete: str = None, |
| 840 |
|
): |
| 841 |
|
""" |
| 842 |
|
Delete an execution environment |
| 843 |
|
:param str ee_id: id of the execution environment to delete |
| 844 |
|
:param dict db_dict: where to write into database when the status changes. |
| 845 |
|
It contains a dict with |
| 846 |
|
{collection: <str>, filter: {}, path: <str>}, |
| 847 |
|
e.g. {collection: "nsrs", filter: |
| 848 |
|
{_id: <nsd-id>, path: "_admin.deployed.VCA.3"} |
| 849 |
|
:param total_timeout: Total timeout |
| 850 |
|
:param scaling_in: Boolean to indicate if it is a scaling in operation |
| 851 |
|
:param vca_type: VCA type |
| 852 |
|
:param vca_id: VCA ID |
| 853 |
|
:param application_to_delete: name of the single application to be deleted |
| 854 |
|
""" |
| 855 |
1 |
self.log.info("Deleting execution environment ee_id={}".format(ee_id)) |
| 856 |
1 |
libjuju = await self._get_libjuju(vca_id) |
| 857 |
|
|
| 858 |
|
# check arguments |
| 859 |
1 |
if ee_id is None: |
| 860 |
0 |
raise N2VCBadArgumentsException( |
| 861 |
|
message="ee_id is mandatory", bad_args=["ee_id"] |
| 862 |
|
) |
| 863 |
|
|
| 864 |
1 |
model_name, application_name, machine_id = self._get_ee_id_components( |
| 865 |
|
ee_id=ee_id |
| 866 |
|
) |
| 867 |
1 |
try: |
| 868 |
1 |
if application_to_delete == application_name: |
| 869 |
|
# destroy the application |
| 870 |
1 |
await libjuju.destroy_application( |
| 871 |
|
model_name=model_name, |
| 872 |
|
application_name=application_name, |
| 873 |
|
total_timeout=total_timeout, |
| 874 |
|
) |
| 875 |
|
# if model is empty delete it |
| 876 |
1 |
controller = await libjuju.get_controller() |
| 877 |
1 |
model = await libjuju.get_model( |
| 878 |
|
controller=controller, |
| 879 |
|
model_name=model_name, |
| 880 |
|
) |
| 881 |
1 |
if not model.applications: |
| 882 |
1 |
self.log.info("Model {} is empty, deleting it".format(model_name)) |
| 883 |
1 |
await libjuju.destroy_model( |
| 884 |
|
model_name=model_name, |
| 885 |
|
total_timeout=total_timeout, |
| 886 |
|
) |
| 887 |
1 |
elif not scaling_in: |
| 888 |
|
# destroy the model |
| 889 |
1 |
await libjuju.destroy_model( |
| 890 |
|
model_name=model_name, total_timeout=total_timeout |
| 891 |
|
) |
| 892 |
0 |
elif vca_type == "native_charm" and scaling_in: |
| 893 |
|
# destroy the unit in the application |
| 894 |
0 |
await libjuju.destroy_unit( |
| 895 |
|
application_name=application_name, |
| 896 |
|
model_name=model_name, |
| 897 |
|
machine_id=machine_id, |
| 898 |
|
total_timeout=total_timeout, |
| 899 |
|
) |
| 900 |
|
else: |
| 901 |
|
# destroy the application |
| 902 |
0 |
await libjuju.destroy_application( |
| 903 |
|
model_name=model_name, |
| 904 |
|
application_name=application_name, |
| 905 |
|
total_timeout=total_timeout, |
| 906 |
|
) |
| 907 |
0 |
except Exception as e: |
| 908 |
0 |
raise N2VCException( |
| 909 |
|
message=( |
| 910 |
|
"Error deleting execution environment {} (application {}) : {}" |
| 911 |
|
).format(ee_id, application_name, e) |
| 912 |
|
) |
| 913 |
|
|
| 914 |
1 |
self.log.info("Execution environment {} deleted".format(ee_id)) |
| 915 |
|
|
| 916 |
1 |
async def exec_primitive( |
| 917 |
|
self, |
| 918 |
|
ee_id: str, |
| 919 |
|
primitive_name: str, |
| 920 |
|
params_dict: dict, |
| 921 |
|
db_dict: dict = None, |
| 922 |
|
progress_timeout: float = None, |
| 923 |
|
total_timeout: float = None, |
| 924 |
|
vca_id: str = None, |
| 925 |
|
vca_type: str = None, |
| 926 |
|
) -> str: |
| 927 |
|
""" |
| 928 |
|
Execute a primitive in the execution environment |
| 929 |
|
|
| 930 |
|
:param: ee_id: the one returned by create_execution_environment or |
| 931 |
|
register_execution_environment |
| 932 |
|
:param: primitive_name: must be one defined in the software. There is one |
| 933 |
|
called 'config', where, for the proxy case, the 'credentials' of VM are |
| 934 |
|
provided |
| 935 |
|
:param: params_dict: parameters of the action |
| 936 |
|
:param: db_dict: where to write into database when the status changes. |
| 937 |
|
It contains a dict with |
| 938 |
|
{collection: <str>, filter: {}, path: <str>}, |
| 939 |
|
e.g. {collection: "nsrs", filter: |
| 940 |
|
{_id: <nsd-id>, path: "_admin.deployed.VCA.3"} |
| 941 |
|
:param: progress_timeout: Progress timeout |
| 942 |
|
:param: total_timeout: Total timeout |
| 943 |
|
:param: vca_id: VCA ID |
| 944 |
|
:param: vca_type: VCA type |
| 945 |
|
:returns str: primitive result, if ok. It raises exceptions in case of fail |
| 946 |
|
""" |
| 947 |
|
|
| 948 |
0 |
self.log.info( |
| 949 |
|
"Executing primitive: {} on ee: {}, params: {}".format( |
| 950 |
|
primitive_name, ee_id, params_dict |
| 951 |
|
) |
| 952 |
|
) |
| 953 |
0 |
libjuju = await self._get_libjuju(vca_id) |
| 954 |
|
|
| 955 |
|
# check arguments |
| 956 |
0 |
if ee_id is None or len(ee_id) == 0: |
| 957 |
0 |
raise N2VCBadArgumentsException( |
| 958 |
|
message="ee_id is mandatory", bad_args=["ee_id"] |
| 959 |
|
) |
| 960 |
0 |
if primitive_name is None or len(primitive_name) == 0: |
| 961 |
0 |
raise N2VCBadArgumentsException( |
| 962 |
|
message="action_name is mandatory", bad_args=["action_name"] |
| 963 |
|
) |
| 964 |
0 |
if params_dict is None: |
| 965 |
0 |
params_dict = dict() |
| 966 |
|
|
| 967 |
0 |
try: |
| 968 |
0 |
( |
| 969 |
|
model_name, |
| 970 |
|
application_name, |
| 971 |
|
machine_id, |
| 972 |
|
) = N2VCJujuConnector._get_ee_id_components(ee_id=ee_id) |
| 973 |
|
# To run action on the leader unit in libjuju.execute_action function, |
| 974 |
|
# machine_id must be set to None if vca_type is not native_charm |
| 975 |
0 |
if vca_type != "native_charm": |
| 976 |
0 |
machine_id = None |
| 977 |
0 |
except Exception: |
| 978 |
0 |
raise N2VCBadArgumentsException( |
| 979 |
|
message="ee_id={} is not a valid execution environment id".format( |
| 980 |
|
ee_id |
| 981 |
|
), |
| 982 |
|
bad_args=["ee_id"], |
| 983 |
|
) |
| 984 |
|
|
| 985 |
0 |
if primitive_name == "config": |
| 986 |
|
# Special case: config primitive |
| 987 |
0 |
try: |
| 988 |
0 |
await libjuju.configure_application( |
| 989 |
|
model_name=model_name, |
| 990 |
|
application_name=application_name, |
| 991 |
|
config=params_dict, |
| 992 |
|
) |
| 993 |
0 |
actions = await libjuju.get_actions( |
| 994 |
|
application_name=application_name, model_name=model_name |
| 995 |
|
) |
| 996 |
0 |
self.log.debug( |
| 997 |
|
"Application {} has these actions: {}".format( |
| 998 |
|
application_name, actions |
| 999 |
|
) |
| 1000 |
|
) |
| 1001 |
0 |
if "verify-ssh-credentials" in actions: |
| 1002 |
|
# execute verify-credentials |
| 1003 |
0 |
num_retries = 20 |
| 1004 |
0 |
retry_timeout = 15.0 |
| 1005 |
0 |
for _ in range(num_retries): |
| 1006 |
0 |
try: |
| 1007 |
0 |
self.log.debug("Executing action verify-ssh-credentials...") |
| 1008 |
0 |
output, ok = await libjuju.execute_action( |
| 1009 |
|
model_name=model_name, |
| 1010 |
|
application_name=application_name, |
| 1011 |
|
action_name="verify-ssh-credentials", |
| 1012 |
|
db_dict=db_dict, |
| 1013 |
|
progress_timeout=progress_timeout, |
| 1014 |
|
total_timeout=total_timeout, |
| 1015 |
|
) |
| 1016 |
|
|
| 1017 |
0 |
if ok == "failed": |
| 1018 |
0 |
self.log.debug( |
| 1019 |
|
"Error executing verify-ssh-credentials: {}. Retrying..." |
| 1020 |
|
) |
| 1021 |
0 |
await asyncio.sleep(retry_timeout) |
| 1022 |
|
|
| 1023 |
0 |
continue |
| 1024 |
0 |
self.log.debug("Result: {}, output: {}".format(ok, output)) |
| 1025 |
0 |
break |
| 1026 |
0 |
except asyncio.CancelledError: |
| 1027 |
0 |
raise |
| 1028 |
|
else: |
| 1029 |
0 |
self.log.error( |
| 1030 |
|
"Error executing verify-ssh-credentials after {} retries. ".format( |
| 1031 |
|
num_retries |
| 1032 |
|
) |
| 1033 |
|
) |
| 1034 |
|
else: |
| 1035 |
0 |
msg = "Action verify-ssh-credentials does not exist in application {}".format( |
| 1036 |
|
application_name |
| 1037 |
|
) |
| 1038 |
0 |
self.log.debug(msg=msg) |
| 1039 |
0 |
except Exception as e: |
| 1040 |
0 |
self.log.error("Error configuring juju application: {}".format(e)) |
| 1041 |
0 |
raise N2VCExecutionException( |
| 1042 |
|
message="Error configuring application into ee={} : {}".format( |
| 1043 |
|
ee_id, e |
| 1044 |
|
), |
| 1045 |
|
primitive_name=primitive_name, |
| 1046 |
|
) |
| 1047 |
0 |
return "CONFIG OK" |
| 1048 |
|
else: |
| 1049 |
0 |
try: |
| 1050 |
0 |
output, status = await libjuju.execute_action( |
| 1051 |
|
model_name=model_name, |
| 1052 |
|
application_name=application_name, |
| 1053 |
|
action_name=primitive_name, |
| 1054 |
|
db_dict=db_dict, |
| 1055 |
|
machine_id=machine_id, |
| 1056 |
|
progress_timeout=progress_timeout, |
| 1057 |
|
total_timeout=total_timeout, |
| 1058 |
|
**params_dict, |
| 1059 |
|
) |
| 1060 |
0 |
if status == "completed": |
| 1061 |
0 |
return output |
| 1062 |
|
else: |
| 1063 |
0 |
if "output" in output: |
| 1064 |
0 |
raise Exception(f'{status}: {output["output"]}') |
| 1065 |
|
else: |
| 1066 |
0 |
raise Exception( |
| 1067 |
|
f"{status}: No further information received from action" |
| 1068 |
|
) |
| 1069 |
|
|
| 1070 |
0 |
except Exception as e: |
| 1071 |
0 |
self.log.error(f"Error executing primitive {primitive_name}: {e}") |
| 1072 |
0 |
raise N2VCExecutionException( |
| 1073 |
|
message=f"Error executing primitive {primitive_name} in ee={ee_id}: {e}", |
| 1074 |
|
primitive_name=primitive_name, |
| 1075 |
|
) |
| 1076 |
|
|
| 1077 |
1 |
async def upgrade_charm( |
| 1078 |
|
self, |
| 1079 |
|
ee_id: str = None, |
| 1080 |
|
path: str = None, |
| 1081 |
|
charm_id: str = None, |
| 1082 |
|
charm_type: str = None, |
| 1083 |
|
timeout: float = None, |
| 1084 |
|
) -> str: |
| 1085 |
|
"""This method upgrade charms in VNFs |
| 1086 |
|
|
| 1087 |
|
Args: |
| 1088 |
|
ee_id: Execution environment id |
| 1089 |
|
path: Local path to the charm |
| 1090 |
|
charm_id: charm-id |
| 1091 |
|
charm_type: Charm type can be lxc-proxy-charm, native-charm or k8s-proxy-charm |
| 1092 |
|
timeout: (Float) Timeout for the ns update operation |
| 1093 |
|
|
| 1094 |
|
Returns: |
| 1095 |
|
The output of the update operation if status equals to "completed" |
| 1096 |
|
|
| 1097 |
|
""" |
| 1098 |
1 |
self.log.info("Upgrading charm: {} on ee: {}".format(path, ee_id)) |
| 1099 |
1 |
libjuju = await self._get_libjuju(charm_id) |
| 1100 |
|
|
| 1101 |
|
# check arguments |
| 1102 |
1 |
if ee_id is None or len(ee_id) == 0: |
| 1103 |
1 |
raise N2VCBadArgumentsException( |
| 1104 |
|
message="ee_id is mandatory", bad_args=["ee_id"] |
| 1105 |
|
) |
| 1106 |
1 |
try: |
| 1107 |
1 |
( |
| 1108 |
|
model_name, |
| 1109 |
|
application_name, |
| 1110 |
|
machine_id, |
| 1111 |
|
) = N2VCJujuConnector._get_ee_id_components(ee_id=ee_id) |
| 1112 |
|
|
| 1113 |
1 |
except Exception: |
| 1114 |
1 |
raise N2VCBadArgumentsException( |
| 1115 |
|
message="ee_id={} is not a valid execution environment id".format( |
| 1116 |
|
ee_id |
| 1117 |
|
), |
| 1118 |
|
bad_args=["ee_id"], |
| 1119 |
|
) |
| 1120 |
|
|
| 1121 |
1 |
try: |
| 1122 |
1 |
await libjuju.upgrade_charm( |
| 1123 |
|
application_name=application_name, |
| 1124 |
|
path=path, |
| 1125 |
|
model_name=model_name, |
| 1126 |
|
total_timeout=timeout, |
| 1127 |
|
) |
| 1128 |
|
|
| 1129 |
1 |
return f"Charm upgraded with application name {application_name}" |
| 1130 |
|
|
| 1131 |
1 |
except Exception as e: |
| 1132 |
1 |
self.log.error("Error upgrading charm {}: {}".format(path, e)) |
| 1133 |
|
|
| 1134 |
1 |
raise N2VCException( |
| 1135 |
|
message="Error upgrading charm {} in ee={} : {}".format(path, ee_id, e) |
| 1136 |
|
) |
| 1137 |
|
|
| 1138 |
1 |
async def disconnect(self, vca_id: str = None): |
| 1139 |
|
""" |
| 1140 |
|
Disconnect from VCA |
| 1141 |
|
|
| 1142 |
|
:param: vca_id: VCA ID |
| 1143 |
|
""" |
| 1144 |
0 |
self.log.info("closing juju N2VC...") |
| 1145 |
0 |
libjuju = await self._get_libjuju(vca_id) |
| 1146 |
0 |
try: |
| 1147 |
0 |
await libjuju.disconnect() |
| 1148 |
0 |
except Exception as e: |
| 1149 |
0 |
raise N2VCConnectionException( |
| 1150 |
|
message="Error disconnecting controller: {}".format(e), |
| 1151 |
|
url=libjuju.vca_connection.data.endpoints, |
| 1152 |
|
) |
| 1153 |
|
|
| 1154 |
1 |
""" |
| 1155 |
|
#################################################################################### |
| 1156 |
|
################################### P R I V A T E ################################## |
| 1157 |
|
#################################################################################### |
| 1158 |
|
""" |
| 1159 |
|
|
| 1160 |
1 |
async def _get_libjuju(self, vca_id: str = None) -> Libjuju: |
| 1161 |
|
""" |
| 1162 |
|
Get libjuju object |
| 1163 |
|
|
| 1164 |
|
:param: vca_id: VCA ID |
| 1165 |
|
If None, get a libjuju object with a Connection to the default VCA |
| 1166 |
|
Else, geta libjuju object with a Connection to the specified VCA |
| 1167 |
|
""" |
| 1168 |
1 |
if not vca_id: |
| 1169 |
1 |
while self.loading_libjuju.locked(): |
| 1170 |
0 |
await asyncio.sleep(0.1) |
| 1171 |
1 |
if not self.libjuju: |
| 1172 |
0 |
async with self.loading_libjuju: |
| 1173 |
0 |
vca_connection = await get_connection(self._store) |
| 1174 |
0 |
self.libjuju = Libjuju(vca_connection, log=self.log) |
| 1175 |
1 |
return self.libjuju |
| 1176 |
|
else: |
| 1177 |
0 |
vca_connection = await get_connection(self._store, vca_id) |
| 1178 |
0 |
return Libjuju(vca_connection, log=self.log, n2vc=self) |
| 1179 |
|
|
| 1180 |
1 |
def _write_ee_id_db(self, db_dict: dict, ee_id: str): |
| 1181 |
|
# write ee_id to database: _admin.deployed.VCA.x |
| 1182 |
1 |
try: |
| 1183 |
1 |
the_table = db_dict["collection"] |
| 1184 |
0 |
the_filter = db_dict["filter"] |
| 1185 |
0 |
the_path = db_dict["path"] |
| 1186 |
0 |
if not the_path[-1] == ".": |
| 1187 |
0 |
the_path = the_path + "." |
| 1188 |
0 |
update_dict = {the_path + "ee_id": ee_id} |
| 1189 |
|
# self.log.debug('Writing ee_id to database: {}'.format(the_path)) |
| 1190 |
0 |
self.db.set_one( |
| 1191 |
|
table=the_table, |
| 1192 |
|
q_filter=the_filter, |
| 1193 |
|
update_dict=update_dict, |
| 1194 |
|
fail_on_empty=True, |
| 1195 |
|
) |
| 1196 |
1 |
except asyncio.CancelledError: |
| 1197 |
0 |
raise |
| 1198 |
1 |
except Exception as e: |
| 1199 |
1 |
self.log.error("Error writing ee_id to database: {}".format(e)) |
| 1200 |
|
|
| 1201 |
1 |
@staticmethod |
| 1202 |
1 |
def _build_ee_id(model_name: str, application_name: str, machine_id: str): |
| 1203 |
|
""" |
| 1204 |
|
Build an execution environment id form model, application and machine |
| 1205 |
|
:param model_name: |
| 1206 |
|
:param application_name: |
| 1207 |
|
:param machine_id: |
| 1208 |
|
:return: |
| 1209 |
|
""" |
| 1210 |
|
# id for the execution environment |
| 1211 |
1 |
return "{}.{}.{}".format(model_name, application_name, machine_id) |
| 1212 |
|
|
| 1213 |
1 |
@staticmethod |
| 1214 |
1 |
def _get_ee_id_components(ee_id: str) -> (str, str, str): |
| 1215 |
|
""" |
| 1216 |
|
Get model, application and machine components from an execution environment id |
| 1217 |
|
:param ee_id: |
| 1218 |
|
:return: model_name, application_name, machine_id |
| 1219 |
|
""" |
| 1220 |
|
|
| 1221 |
0 |
return get_ee_id_components(ee_id) |
| 1222 |
|
|
| 1223 |
1 |
@staticmethod |
| 1224 |
1 |
def _find_charm_level(vnf_id: str, vdu_id: str) -> str: |
| 1225 |
|
"""Decides the charm level. |
| 1226 |
|
Args: |
| 1227 |
|
vnf_id (str): VNF id |
| 1228 |
|
vdu_id (str): VDU id |
| 1229 |
|
|
| 1230 |
|
Returns: |
| 1231 |
|
charm_level (str): ns-level or vnf-level or vdu-level |
| 1232 |
|
""" |
| 1233 |
1 |
if vdu_id and not vnf_id: |
| 1234 |
1 |
raise N2VCException(message="If vdu-id exists, vnf-id should be provided.") |
| 1235 |
1 |
if vnf_id and vdu_id: |
| 1236 |
1 |
return "vdu-level" |
| 1237 |
1 |
if vnf_id and not vdu_id: |
| 1238 |
1 |
return "vnf-level" |
| 1239 |
1 |
if not vnf_id and not vdu_id: |
| 1240 |
1 |
return "ns-level" |
| 1241 |
|
|
| 1242 |
1 |
@staticmethod |
| 1243 |
1 |
def _generate_backward_compatible_application_name( |
| 1244 |
|
vnf_id: str, vdu_id: str, vdu_count: str |
| 1245 |
|
) -> str: |
| 1246 |
|
"""Generate backward compatible application name |
| 1247 |
|
by limiting the app name to 50 characters. |
| 1248 |
|
|
| 1249 |
|
Args: |
| 1250 |
|
vnf_id (str): VNF ID |
| 1251 |
|
vdu_id (str): VDU ID |
| 1252 |
|
vdu_count (str): vdu-count-index |
| 1253 |
|
|
| 1254 |
|
Returns: |
| 1255 |
|
application_name (str): generated application name |
| 1256 |
|
|
| 1257 |
|
""" |
| 1258 |
1 |
if vnf_id is None or len(vnf_id) == 0: |
| 1259 |
1 |
vnf_id = "" |
| 1260 |
|
else: |
| 1261 |
|
# Shorten the vnf_id to its last twelve characters |
| 1262 |
1 |
vnf_id = "vnf-" + vnf_id[-12:] |
| 1263 |
|
|
| 1264 |
1 |
if vdu_id is None or len(vdu_id) == 0: |
| 1265 |
1 |
vdu_id = "" |
| 1266 |
|
else: |
| 1267 |
|
# Shorten the vdu_id to its last twelve characters |
| 1268 |
1 |
vdu_id = "-vdu-" + vdu_id[-12:] |
| 1269 |
|
|
| 1270 |
1 |
if vdu_count is None or len(vdu_count) == 0: |
| 1271 |
1 |
vdu_count = "" |
| 1272 |
|
else: |
| 1273 |
1 |
vdu_count = "-cnt-" + vdu_count |
| 1274 |
|
|
| 1275 |
|
# Generate a random suffix with 5 characters (the default size used by K8s) |
| 1276 |
1 |
random_suffix = generate_random_alfanum_string(size=5) |
| 1277 |
|
|
| 1278 |
1 |
application_name = "app-{}{}{}-{}".format( |
| 1279 |
|
vnf_id, vdu_id, vdu_count, random_suffix |
| 1280 |
|
) |
| 1281 |
1 |
return application_name |
| 1282 |
|
|
| 1283 |
1 |
@staticmethod |
| 1284 |
1 |
def _get_vca_record(search_key: str, vca_records: list, vdu_id: str) -> dict: |
| 1285 |
|
"""Get the correct VCA record dict depending on the search key |
| 1286 |
|
|
| 1287 |
|
Args: |
| 1288 |
|
search_key (str): keyword to find the correct VCA record |
| 1289 |
|
vca_records (list): All VCA records as list |
| 1290 |
|
vdu_id (str): VDU ID |
| 1291 |
|
|
| 1292 |
|
Returns: |
| 1293 |
|
vca_record (dict): Dictionary which includes the correct VCA record |
| 1294 |
|
|
| 1295 |
|
""" |
| 1296 |
1 |
return next( |
| 1297 |
|
filter(lambda record: record[search_key] == vdu_id, vca_records), {} |
| 1298 |
|
) |
| 1299 |
|
|
| 1300 |
1 |
@staticmethod |
| 1301 |
1 |
def _generate_application_name( |
| 1302 |
|
charm_level: str, |
| 1303 |
|
vnfrs: dict, |
| 1304 |
|
vca_records: list, |
| 1305 |
|
vnf_count: str = None, |
| 1306 |
|
vdu_id: str = None, |
| 1307 |
|
vdu_count: str = None, |
| 1308 |
|
) -> str: |
| 1309 |
|
"""Generate application name to make the relevant charm of VDU/KDU |
| 1310 |
|
in the VNFD descriptor become clearly visible. |
| 1311 |
|
Limiting the app name to 50 characters. |
| 1312 |
|
|
| 1313 |
|
Args: |
| 1314 |
|
charm_level (str): level of charm |
| 1315 |
|
vnfrs (dict): vnf record dict |
| 1316 |
|
vca_records (list): db_nsr["_admin"]["deployed"]["VCA"] as list |
| 1317 |
|
vnf_count (str): vnf count index |
| 1318 |
|
vdu_id (str): VDU ID |
| 1319 |
|
vdu_count (str): vdu count index |
| 1320 |
|
|
| 1321 |
|
Returns: |
| 1322 |
|
application_name (str): generated application name |
| 1323 |
|
|
| 1324 |
|
""" |
| 1325 |
1 |
application_name = "" |
| 1326 |
1 |
if charm_level == "ns-level": |
| 1327 |
1 |
if len(vca_records) != 1: |
| 1328 |
1 |
raise N2VCException(message="One VCA record is expected.") |
| 1329 |
|
# Only one VCA record is expected if it's ns-level charm. |
| 1330 |
|
# Shorten the charm name to its first 40 characters. |
| 1331 |
1 |
charm_name = vca_records[0]["charm_name"][:40] |
| 1332 |
1 |
if not charm_name: |
| 1333 |
1 |
raise N2VCException(message="Charm name should be provided.") |
| 1334 |
1 |
application_name = charm_name + "-ns" |
| 1335 |
|
|
| 1336 |
1 |
elif charm_level == "vnf-level": |
| 1337 |
1 |
if len(vca_records) < 1: |
| 1338 |
1 |
raise N2VCException(message="One or more VCA record is expected.") |
| 1339 |
|
# If VNF is scaled, more than one VCA record may be included in vca_records |
| 1340 |
|
# but ee_descriptor_id is same. |
| 1341 |
|
# Shorten the ee_descriptor_id and member-vnf-index-ref |
| 1342 |
|
# to first 12 characters. |
| 1343 |
1 |
application_name = ( |
| 1344 |
|
vca_records[0]["ee_descriptor_id"][:12] |
| 1345 |
|
+ "-" |
| 1346 |
|
+ vnf_count |
| 1347 |
|
+ "-" |
| 1348 |
|
+ vnfrs["member-vnf-index-ref"][:12] |
| 1349 |
|
+ "-vnf" |
| 1350 |
|
) |
| 1351 |
1 |
elif charm_level == "vdu-level": |
| 1352 |
1 |
if len(vca_records) < 1: |
| 1353 |
0 |
raise N2VCException(message="One or more VCA record is expected.") |
| 1354 |
|
|
| 1355 |
|
# Charms are also used for deployments with Helm charts. |
| 1356 |
|
# If deployment unit is a Helm chart/KDU, |
| 1357 |
|
# vdu_profile_id and vdu_count will be empty string. |
| 1358 |
1 |
if vdu_count is None: |
| 1359 |
1 |
vdu_count = "" |
| 1360 |
|
|
| 1361 |
|
# If vnf/vdu is scaled, more than one VCA record may be included in vca_records |
| 1362 |
|
# but ee_descriptor_id is same. |
| 1363 |
|
# Shorten the ee_descriptor_id, member-vnf-index-ref and vdu_profile_id |
| 1364 |
|
# to first 12 characters. |
| 1365 |
1 |
if not vdu_id: |
| 1366 |
1 |
raise N2VCException(message="vdu-id should be provided.") |
| 1367 |
|
|
| 1368 |
1 |
vca_record = N2VCJujuConnector._get_vca_record( |
| 1369 |
|
"vdu_id", vca_records, vdu_id |
| 1370 |
|
) |
| 1371 |
|
|
| 1372 |
1 |
if not vca_record: |
| 1373 |
1 |
vca_record = N2VCJujuConnector._get_vca_record( |
| 1374 |
|
"kdu_name", vca_records, vdu_id |
| 1375 |
|
) |
| 1376 |
|
|
| 1377 |
1 |
application_name = ( |
| 1378 |
|
vca_record["ee_descriptor_id"][:12] |
| 1379 |
|
+ "-" |
| 1380 |
|
+ vnf_count |
| 1381 |
|
+ "-" |
| 1382 |
|
+ vnfrs["member-vnf-index-ref"][:12] |
| 1383 |
|
+ "-" |
| 1384 |
|
+ vdu_id[:12] |
| 1385 |
|
+ "-" |
| 1386 |
|
+ vdu_count |
| 1387 |
|
+ "-vdu" |
| 1388 |
|
) |
| 1389 |
|
|
| 1390 |
1 |
return application_name |
| 1391 |
|
|
| 1392 |
1 |
def _get_vnf_count_and_record( |
| 1393 |
|
self, charm_level: str, vnf_id_and_count: str |
| 1394 |
|
) -> Tuple[str, dict]: |
| 1395 |
|
"""Get the vnf count and VNF record depend on charm level |
| 1396 |
|
|
| 1397 |
|
Args: |
| 1398 |
|
charm_level (str) |
| 1399 |
|
vnf_id_and_count (str) |
| 1400 |
|
|
| 1401 |
|
Returns: |
| 1402 |
|
(vnf_count (str), db_vnfr(dict)) as Tuple |
| 1403 |
|
|
| 1404 |
|
""" |
| 1405 |
1 |
vnf_count = "" |
| 1406 |
1 |
db_vnfr = {} |
| 1407 |
|
|
| 1408 |
1 |
if charm_level in ("vnf-level", "vdu-level"): |
| 1409 |
1 |
vnf_id = "-".join(vnf_id_and_count.split("-")[:-1]) |
| 1410 |
1 |
vnf_count = vnf_id_and_count.split("-")[-1] |
| 1411 |
1 |
db_vnfr = self.db.get_one("vnfrs", {"_id": vnf_id}) |
| 1412 |
|
|
| 1413 |
|
# If the charm is ns level, it returns empty vnf_count and db_vnfr |
| 1414 |
1 |
return vnf_count, db_vnfr |
| 1415 |
|
|
| 1416 |
1 |
@staticmethod |
| 1417 |
1 |
def _get_vca_records(charm_level: str, db_nsr: dict, db_vnfr: dict) -> list: |
| 1418 |
|
"""Get the VCA records from db_nsr dict |
| 1419 |
|
|
| 1420 |
|
Args: |
| 1421 |
|
charm_level (str): level of charm |
| 1422 |
|
db_nsr (dict): NS record from database |
| 1423 |
|
db_vnfr (dict): VNF record from database |
| 1424 |
|
|
| 1425 |
|
Returns: |
| 1426 |
|
vca_records (list): List of VCA record dictionaries |
| 1427 |
|
|
| 1428 |
|
""" |
| 1429 |
1 |
vca_records = {} |
| 1430 |
1 |
if charm_level == "ns-level": |
| 1431 |
1 |
vca_records = list( |
| 1432 |
|
filter( |
| 1433 |
|
lambda vca_record: vca_record["target_element"] == "ns", |
| 1434 |
|
db_nsr["_admin"]["deployed"]["VCA"], |
| 1435 |
|
) |
| 1436 |
|
) |
| 1437 |
1 |
elif charm_level in ["vnf-level", "vdu-level"]: |
| 1438 |
1 |
vca_records = list( |
| 1439 |
|
filter( |
| 1440 |
|
lambda vca_record: vca_record["member-vnf-index"] |
| 1441 |
|
== db_vnfr["member-vnf-index-ref"], |
| 1442 |
|
db_nsr["_admin"]["deployed"]["VCA"], |
| 1443 |
|
) |
| 1444 |
|
) |
| 1445 |
|
|
| 1446 |
1 |
return vca_records |
| 1447 |
|
|
| 1448 |
1 |
def _get_application_name(self, namespace: str) -> str: |
| 1449 |
|
"""Build application name from namespace |
| 1450 |
|
|
| 1451 |
|
Application name structure: |
| 1452 |
|
NS level: <charm-name>-ns |
| 1453 |
|
VNF level: <ee-name>-z<vnf-ordinal-scale-number>-<vnf-profile-id>-vnf |
| 1454 |
|
VDU level: <ee-name>-z<vnf-ordinal-scale-number>-<vnf-profile-id>- |
| 1455 |
|
<vdu-profile-id>-z<vdu-ordinal-scale-number>-vdu |
| 1456 |
|
|
| 1457 |
|
Application naming for backward compatibility (old structure): |
| 1458 |
|
NS level: app-<random_value> |
| 1459 |
|
VNF level: app-vnf-<vnf-id>-z<ordinal-scale-number>-<random_value> |
| 1460 |
|
VDU level: app-vnf-<vnf-id>-z<vnf-ordinal-scale-number>-vdu- |
| 1461 |
|
<vdu-id>-cnt-<vdu-count>-z<vdu-ordinal-scale-number>-<random_value> |
| 1462 |
|
|
| 1463 |
|
Args: |
| 1464 |
|
namespace (str) |
| 1465 |
|
|
| 1466 |
|
Returns: |
| 1467 |
|
application_name (str) |
| 1468 |
|
|
| 1469 |
|
""" |
| 1470 |
|
# split namespace components |
| 1471 |
1 |
( |
| 1472 |
|
nsi_id, |
| 1473 |
|
ns_id, |
| 1474 |
|
vnf_id_and_count, |
| 1475 |
|
vdu_id, |
| 1476 |
|
vdu_count, |
| 1477 |
|
) = self._get_namespace_components(namespace=namespace) |
| 1478 |
|
|
| 1479 |
1 |
if not ns_id: |
| 1480 |
0 |
raise N2VCException(message="ns-id should be provided.") |
| 1481 |
|
|
| 1482 |
1 |
charm_level = self._find_charm_level(vnf_id_and_count, vdu_id) |
| 1483 |
1 |
db_nsr = self.db.get_one("nsrs", {"_id": ns_id}) |
| 1484 |
1 |
vnf_count, db_vnfr = self._get_vnf_count_and_record( |
| 1485 |
|
charm_level, vnf_id_and_count |
| 1486 |
|
) |
| 1487 |
1 |
vca_records = self._get_vca_records(charm_level, db_nsr, db_vnfr) |
| 1488 |
|
|
| 1489 |
1 |
if all("charm_name" in vca_record.keys() for vca_record in vca_records): |
| 1490 |
1 |
application_name = self._generate_application_name( |
| 1491 |
|
charm_level, |
| 1492 |
|
db_vnfr, |
| 1493 |
|
vca_records, |
| 1494 |
|
vnf_count=vnf_count, |
| 1495 |
|
vdu_id=vdu_id, |
| 1496 |
|
vdu_count=vdu_count, |
| 1497 |
|
) |
| 1498 |
|
else: |
| 1499 |
1 |
application_name = self._generate_backward_compatible_application_name( |
| 1500 |
|
vnf_id_and_count, vdu_id, vdu_count |
| 1501 |
|
) |
| 1502 |
|
|
| 1503 |
1 |
return N2VCJujuConnector._format_app_name(application_name) |
| 1504 |
|
|
| 1505 |
1 |
@staticmethod |
| 1506 |
1 |
def _format_model_name(name: str) -> str: |
| 1507 |
|
"""Format the name of the model. |
| 1508 |
|
|
| 1509 |
|
Model names may only contain lowercase letters, digits and hyphens |
| 1510 |
|
""" |
| 1511 |
|
|
| 1512 |
0 |
return name.replace("_", "-").replace(" ", "-").lower() |
| 1513 |
|
|
| 1514 |
1 |
@staticmethod |
| 1515 |
1 |
def _format_app_name(name: str) -> str: |
| 1516 |
|
"""Format the name of the application (in order to assure valid application name). |
| 1517 |
|
|
| 1518 |
|
Application names have restrictions (run juju deploy --help): |
| 1519 |
|
- contains lowercase letters 'a'-'z' |
| 1520 |
|
- contains numbers '0'-'9' |
| 1521 |
|
- contains hyphens '-' |
| 1522 |
|
- starts with a lowercase letter |
| 1523 |
|
- not two or more consecutive hyphens |
| 1524 |
|
- after a hyphen, not a group with all numbers |
| 1525 |
|
""" |
| 1526 |
|
|
| 1527 |
1 |
def all_numbers(s: str) -> bool: |
| 1528 |
1 |
for c in s: |
| 1529 |
1 |
if not c.isdigit(): |
| 1530 |
1 |
return False |
| 1531 |
1 |
return True |
| 1532 |
|
|
| 1533 |
1 |
new_name = name.replace("_", "-") |
| 1534 |
1 |
new_name = new_name.replace(" ", "-") |
| 1535 |
1 |
new_name = new_name.lower() |
| 1536 |
1 |
while new_name.find("--") >= 0: |
| 1537 |
1 |
new_name = new_name.replace("--", "-") |
| 1538 |
1 |
groups = new_name.split("-") |
| 1539 |
|
|
| 1540 |
|
# find 'all numbers' groups and prefix them with a letter |
| 1541 |
1 |
app_name = "" |
| 1542 |
1 |
for i in range(len(groups)): |
| 1543 |
1 |
group = groups[i] |
| 1544 |
1 |
if all_numbers(group): |
| 1545 |
1 |
group = "z" + group |
| 1546 |
1 |
if i > 0: |
| 1547 |
1 |
app_name += "-" |
| 1548 |
1 |
app_name += group |
| 1549 |
|
|
| 1550 |
1 |
if app_name[0].isdigit(): |
| 1551 |
0 |
app_name = "z" + app_name |
| 1552 |
|
|
| 1553 |
1 |
return app_name |
| 1554 |
|
|
| 1555 |
1 |
async def validate_vca(self, vca_id: str): |
| 1556 |
|
""" |
| 1557 |
|
Validate a VCA by connecting/disconnecting to/from it |
| 1558 |
|
|
| 1559 |
|
:param: vca_id: VCA ID |
| 1560 |
|
""" |
| 1561 |
0 |
vca_connection = await get_connection(self._store, vca_id=vca_id) |
| 1562 |
0 |
libjuju = Libjuju(vca_connection, log=self.log, n2vc=self) |
| 1563 |
0 |
controller = await libjuju.get_controller() |
| 1564 |
0 |
await libjuju.disconnect_controller(controller) |
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