osm_lcm/lcm.py

   1 #!/usr/bin/python3
   2 # -*- coding: utf-8 -*-
   3
   4 import asyncio
   5 import yaml
   6 import ROclient
   7 import logging
   8 import logging.handlers
   9 import getopt
  10 import functools
  11 import sys
  12 from osm_common import dbmemory
  13 from osm_common import dbmongo
  14 from osm_common import fslocal
  15 from osm_common import msglocal
  16 from osm_common import msgkafka
  17 from osm_common.dbbase import DbException
  18 from osm_common.fsbase import FsException
  19 from osm_common.msgbase import MsgException
  20 from os import environ, path
  21 from n2vc.vnf import N2VC
  22 from n2vc import version as N2VC_version
  23
  24 from copy import deepcopy
  25 from http import HTTPStatus
  26 from time import time
  27
  28
  29 __author__ = "Alfonso Tierno"
  30
  31
  32 class LcmException(Exception):
  33     pass
  34
  35
  36 class Lcm:
  37
  38     def __init__(self, config_file):
  39         """
  40         Init, Connect to database, filesystem storage, and messaging
  41         :param config: two level dictionary with configuration. Top level should contain 'database', 'storage',
  42         :return: None
  43         """
  44
  45         self.db = None
  46         self.msg = None
  47         self.fs = None
  48         self.pings_not_received = 1
  49
  50         # contains created tasks/futures to be able to cancel
  51         self.lcm_ns_tasks = {}
  52         self.lcm_vim_tasks = {}
  53         self.lcm_sdn_tasks = {}
  54         # logging
  55         self.logger = logging.getLogger('lcm')
  56         # load configuration
  57         config = self.read_config_file(config_file)
  58         self.config = config
  59         self.ro_config = {
  60             "endpoint_url": "http://{}:{}/openmano".format(config["RO"]["host"], config["RO"]["port"]),
  61             "tenant": config.get("tenant", "osm"),
  62             "logger_name": "lcm.ROclient",
  63             "loglevel": "ERROR",
  64         }
  65
  66         self.vca = config["VCA"]  # TODO VCA
  67         self.loop = None
  68
  69         # logging
  70         log_format_simple = "%(asctime)s %(levelname)s %(name)s %(filename)s:%(lineno)s %(message)s"
  71         log_formatter_simple = logging.Formatter(log_format_simple, datefmt='%Y-%m-%dT%H:%M:%S')
  72         config["database"]["logger_name"] = "lcm.db"
  73         config["storage"]["logger_name"] = "lcm.fs"
  74         config["message"]["logger_name"] = "lcm.msg"
  75         if "logfile" in config["global"]:
  76             file_handler = logging.handlers.RotatingFileHandler(config["global"]["logfile"],
  77                                                                 maxBytes=100e6, backupCount=9, delay=0)
  78             file_handler.setFormatter(log_formatter_simple)
  79             self.logger.addHandler(file_handler)
  80         else:
  81             str_handler = logging.StreamHandler()
  82             str_handler.setFormatter(log_formatter_simple)
  83             self.logger.addHandler(str_handler)
  84
  85         if config["global"].get("loglevel"):
  86             self.logger.setLevel(config["global"]["loglevel"])
  87
  88         # logging other modules
  89         for k1, logname in {"message": "lcm.msg", "database": "lcm.db", "storage": "lcm.fs"}.items():
  90             config[k1]["logger_name"] = logname
  91             logger_module = logging.getLogger(logname)
  92             if "logfile" in config[k1]:
  93                 file_handler = logging.handlers.RotatingFileHandler(config[k1]["logfile"],
  94                                                                     maxBytes=100e6, backupCount=9, delay=0)
  95                 file_handler.setFormatter(log_formatter_simple)
  96                 logger_module.addHandler(file_handler)
  97             if "loglevel" in config[k1]:
  98                 logger_module.setLevel(config[k1]["loglevel"])
  99
 100         self.n2vc = N2VC(
 101             log=self.logger,
 102             server=config['VCA']['host'],
 103             port=config['VCA']['port'],
 104             user=config['VCA']['user'],
 105             secret=config['VCA']['secret'],
 106             # TODO: This should point to the base folder where charms are stored,
 107             # if there is a common one (like object storage). Otherwise, leave
 108             # it unset and pass it via DeployCharms
 109             # artifacts=config['VCA'][''],
 110             artifacts=None,
 111         )
 112         # check version of N2VC
 113         # TODO enhance with int conversion or from distutils.version import LooseVersion
 114         # or with list(map(int, version.split(".")))
 115         if N2VC_version < "0.0.2":
 116             raise LcmException("Not compatible osm/N2VC version '{}'. Needed '0.0.2' or higher".format(N2VC_version))
 117         try:
 118             if config["database"]["driver"] == "mongo":
 119                 self.db = dbmongo.DbMongo()
 120                 self.db.db_connect(config["database"])
 121             elif config["database"]["driver"] == "memory":
 122                 self.db = dbmemory.DbMemory()
 123                 self.db.db_connect(config["database"])
 124             else:
 125                 raise LcmException("Invalid configuration param '{}' at '[database]':'driver'".format(
 126                     config["database"]["driver"]))
 127
 128             if config["storage"]["driver"] == "local":
 129                 self.fs = fslocal.FsLocal()
 130                 self.fs.fs_connect(config["storage"])
 131             else:
 132                 raise LcmException("Invalid configuration param '{}' at '[storage]':'driver'".format(
 133                     config["storage"]["driver"]))
 134
 135             if config["message"]["driver"] == "local":
 136                 self.msg = msglocal.MsgLocal()
 137                 self.msg.connect(config["message"])
 138             elif config["message"]["driver"] == "kafka":
 139                 self.msg = msgkafka.MsgKafka()
 140                 self.msg.connect(config["message"])
 141             else:
 142                 raise LcmException("Invalid configuration param '{}' at '[message]':'driver'".format(
 143                     config["storage"]["driver"]))
 144         except (DbException, FsException, MsgException) as e:
 145             self.logger.critical(str(e), exc_info=True)
 146             raise LcmException(str(e))
 147
 148     def update_db(self, item, _id, _desc):
 149         try:
 150             self.db.replace(item, _id, _desc)
 151         except DbException as e:
 152             self.logger.error("Updating {} _id={}: {}".format(item, _id, e))
 153
 154     def update_db_2(self, item, _id, _desc):
 155         try:
 156             self.db.set_one(item, {"_id": _id}, _desc)
 157         except DbException as e:
 158             self.logger.error("Updating {} _id={}: {}".format(item, _id, e))
 159
 160     async def vim_create(self, vim_content, order_id):
 161         vim_id = vim_content["_id"]
 162         logging_text = "Task vim_create={} ".format(vim_id)
 163         self.logger.debug(logging_text + "Enter")
 164         db_vim = None
 165         exc = None
 166         RO_sdn_id = None
 167         try:
 168             step = "Getting vim-id='{}' from db".format(vim_id)
 169             db_vim = self.db.get_one("vim_accounts", {"_id": vim_id})
 170             if "_admin" not in db_vim:
 171                 db_vim["_admin"] = {}
 172             if "deployed" not in db_vim["_admin"]:
 173                 db_vim["_admin"]["deployed"] = {}
 174             db_vim["_admin"]["deployed"]["RO"] = None
 175             if vim_content.get("config") and vim_content["config"].get("sdn-controller"):
 176                 step = "Getting sdn-controller-id='{}' from db".format(vim_content["config"]["sdn-controller"])
 177                 db_sdn = self.db.get_one("sdns", {"_id": vim_content["config"]["sdn-controller"]})
 178                 if db_sdn.get("_admin") and db_sdn["_admin"].get("deployed") and db_sdn["_admin"]["deployed"].get("RO"):
 179                     RO_sdn_id = db_sdn["_admin"]["deployed"]["RO"]
 180                 else:
 181                     raise LcmException("sdn-controller={} is not available. Not deployed at RO".format(
 182                         vim_content["config"]["sdn-controller"]))
 183
 184             step = "Creating vim at RO"
 185             RO = ROclient.ROClient(self.loop, **self.ro_config)
 186             vim_RO = deepcopy(vim_content)
 187             vim_RO.pop("_id", None)
 188             vim_RO.pop("_admin", None)
 189             vim_RO.pop("schema_version", None)
 190             vim_RO.pop("schema_type", None)
 191             vim_RO.pop("vim_tenant_name", None)
 192             vim_RO["type"] = vim_RO.pop("vim_type")
 193             vim_RO.pop("vim_user", None)
 194             vim_RO.pop("vim_password", None)
 195             if RO_sdn_id:
 196                 vim_RO["config"]["sdn-controller"] = RO_sdn_id
 197             desc = await RO.create("vim", descriptor=vim_RO)
 198             RO_vim_id = desc["uuid"]
 199             db_vim["_admin"]["deployed"]["RO"] = RO_vim_id
 200             self.update_db("vim_accounts", vim_id, db_vim)
 201
 202             step = "Creating vim_account at RO"
 203             vim_account_RO = {"vim_tenant_name": vim_content["vim_tenant_name"],
 204                               "vim_username": vim_content["vim_user"],
 205                               "vim_password": vim_content["vim_password"]
 206                               }
 207             if vim_RO.get("config"):
 208                 vim_account_RO["config"] = vim_RO["config"]
 209                 if "sdn-controller" in vim_account_RO["config"]:
 210                     del vim_account_RO["config"]["sdn-controller"]
 211                 if "sdn-port-mapping" in vim_account_RO["config"]:
 212                     del vim_account_RO["config"]["sdn-port-mapping"]
 213             await RO.attach_datacenter(RO_vim_id, descriptor=vim_account_RO)
 214             db_vim["_admin"]["operationalState"] = "ENABLED"
 215             self.update_db("vim_accounts", vim_id, db_vim)
 216
 217             self.logger.debug(logging_text + "Exit Ok RO_vim_id".format(RO_vim_id))
 218             return RO_vim_id
 219
 220         except (ROclient.ROClientException, DbException) as e:
 221             self.logger.error(logging_text + "Exit Exception {}".format(e))
 222             exc = e
 223         except Exception as e:
 224             self.logger.critical(logging_text + "Exit Exception {}".format(e), exc_info=True)
 225             exc = e
 226         finally:
 227             if exc and db_vim:
 228                 db_vim["_admin"]["operationalState"] = "ERROR"
 229                 db_vim["_admin"]["detailed-status"] = "ERROR {}: {}".format(step, exc)
 230                 self.update_db("vim_accounts", vim_id, db_vim)
 231
 232     async def vim_edit(self, vim_content, order_id):
 233         vim_id = vim_content["_id"]
 234         logging_text = "Task vim_edit={} ".format(vim_id)
 235         self.logger.debug(logging_text + "Enter")
 236         db_vim = None
 237         exc = None
 238         RO_sdn_id = None
 239         step = "Getting vim-id='{}' from db".format(vim_id)
 240         try:
 241             db_vim = self.db.get_one("vim_accounts", {"_id": vim_id})
 242             if db_vim.get("_admin") and db_vim["_admin"].get("deployed") and db_vim["_admin"]["deployed"].get("RO"):
 243                 if vim_content.get("config") and vim_content["config"].get("sdn-controller"):
 244                     step = "Getting sdn-controller-id='{}' from db".format(vim_content["config"]["sdn-controller"])
 245                     db_sdn = self.db.get_one("sdns", {"_id": vim_content["config"]["sdn-controller"]})
 246                     if db_sdn.get("_admin") and db_sdn["_admin"].get("deployed") and db_sdn["_admin"]["deployed"].get(
 247                             "RO"):
 248                         RO_sdn_id = db_sdn["_admin"]["deployed"]["RO"]
 249                     else:
 250                         raise LcmException("sdn-controller={} is not available. Not deployed at RO".format(
 251                             vim_content["config"]["sdn-controller"]))
 252
 253                 RO_vim_id = db_vim["_admin"]["deployed"]["RO"]
 254                 step = "Editing vim at RO"
 255                 RO = ROclient.ROClient(self.loop, **self.ro_config)
 256                 vim_RO = deepcopy(vim_content)
 257                 vim_RO.pop("_id", None)
 258                 vim_RO.pop("_admin", None)
 259                 vim_RO.pop("schema_version", None)
 260                 vim_RO.pop("schema_type", None)
 261                 vim_RO.pop("vim_tenant_name", None)
 262                 if "vim_type" in vim_RO:
 263                     vim_RO["type"] = vim_RO.pop("vim_type")
 264                 vim_RO.pop("vim_user", None)
 265                 vim_RO.pop("vim_password", None)
 266                 if RO_sdn_id:
 267                     vim_RO["config"]["sdn-controller"] = RO_sdn_id
 268                 # TODO make a deep update of sdn-port-mapping
 269                 if vim_RO:
 270                     await RO.edit("vim", RO_vim_id, descriptor=vim_RO)
 271
 272                 step = "Editing vim-account at RO tenant"
 273                 vim_account_RO = {}
 274                 if "config" in vim_content:
 275                     if "sdn-controller" in vim_content["config"]:
 276                         del vim_content["config"]["sdn-controller"]
 277                     if "sdn-port-mapping" in vim_content["config"]:
 278                         del vim_content["config"]["sdn-port-mapping"]
 279                     if not vim_content["config"]:
 280                         del vim_content["config"]
 281                 for k in ("vim_tenant_name", "vim_password", "config"):
 282                     if k in vim_content:
 283                         vim_account_RO[k] = vim_content[k]
 284                 if "vim_user" in vim_content:
 285                     vim_content["vim_username"] = vim_content["vim_user"]
 286                 if vim_account_RO:
 287                     await RO.edit("vim_account", RO_vim_id, descriptor=vim_account_RO)
 288                 db_vim["_admin"]["operationalState"] = "ENABLED"
 289                 self.update_db("vim_accounts", vim_id, db_vim)
 290
 291             self.logger.debug(logging_text + "Exit Ok RO_vim_id".format(RO_vim_id))
 292             return RO_vim_id
 293
 294         except (ROclient.ROClientException, DbException) as e:
 295             self.logger.error(logging_text + "Exit Exception {}".format(e))
 296             exc = e
 297         except Exception as e:
 298             self.logger.critical(logging_text + "Exit Exception {}".format(e), exc_info=True)
 299             exc = e
 300         finally:
 301             if exc and db_vim:
 302                 db_vim["_admin"]["operationalState"] = "ERROR"
 303                 db_vim["_admin"]["detailed-status"] = "ERROR {}: {}".format(step, exc)
 304                 self.update_db("vim_accounts", vim_id, db_vim)
 305
 306     async def vim_delete(self, vim_id, order_id):
 307         logging_text = "Task vim_delete={} ".format(vim_id)
 308         self.logger.debug(logging_text + "Enter")
 309         db_vim = None
 310         exc = None
 311         step = "Getting vim from db"
 312         try:
 313             db_vim = self.db.get_one("vim_accounts", {"_id": vim_id})
 314             if db_vim.get("_admin") and db_vim["_admin"].get("deployed") and db_vim["_admin"]["deployed"].get("RO"):
 315                 RO_vim_id = db_vim["_admin"]["deployed"]["RO"]
 316                 RO = ROclient.ROClient(self.loop, **self.ro_config)
 317                 step = "Detaching vim from RO tenant"
 318                 try:
 319                     await RO.detach_datacenter(RO_vim_id)
 320                 except ROclient.ROClientException as e:
 321                     if e.http_code == 404:  # not found
 322                         self.logger.debug(logging_text + "RO_vim_id={} already detached".format(RO_vim_id))
 323                     else:
 324                         raise
 325
 326                 step = "Deleting vim from RO"
 327                 try:
 328                     await RO.delete("vim", RO_vim_id)
 329                 except ROclient.ROClientException as e:
 330                     if e.http_code == 404:  # not found
 331                         self.logger.debug(logging_text + "RO_vim_id={} already deleted".format(RO_vim_id))
 332                     else:
 333                         raise
 334             else:
 335                 # nothing to delete
 336                 self.logger.error(logging_text + "Skipping. There is not RO information at database")
 337             self.db.del_one("vim_accounts", {"_id": vim_id})
 338             self.logger.debug("vim_delete task vim_id={} Exit Ok".format(vim_id))
 339             return None
 340
 341         except (ROclient.ROClientException, DbException) as e:
 342             self.logger.error(logging_text + "Exit Exception {}".format(e))
 343             exc = e
 344         except Exception as e:
 345             self.logger.critical(logging_text + "Exit Exception {}".format(e), exc_info=True)
 346             exc = e
 347         finally:
 348             if exc and db_vim:
 349                 db_vim["_admin"]["operationalState"] = "ERROR"
 350                 db_vim["_admin"]["detailed-status"] = "ERROR {}: {}".format(step, exc)
 351                 self.update_db("vim_accounts", vim_id, db_vim)
 352
 353     async def sdn_create(self, sdn_content, order_id):
 354         sdn_id = sdn_content["_id"]
 355         logging_text = "Task sdn_create={} ".format(sdn_id)
 356         self.logger.debug(logging_text + "Enter")
 357         db_sdn = None
 358         exc = None
 359         try:
 360             step = "Getting sdn from db"
 361             db_sdn = self.db.get_one("sdns", {"_id": sdn_id})
 362             if "_admin" not in db_sdn:
 363                 db_sdn["_admin"] = {}
 364             if "deployed" not in db_sdn["_admin"]:
 365                 db_sdn["_admin"]["deployed"] = {}
 366             db_sdn["_admin"]["deployed"]["RO"] = None
 367
 368             step = "Creating sdn at RO"
 369             RO = ROclient.ROClient(self.loop, **self.ro_config)
 370             sdn_RO = deepcopy(sdn_content)
 371             sdn_RO.pop("_id", None)
 372             sdn_RO.pop("_admin", None)
 373             sdn_RO.pop("schema_version", None)
 374             sdn_RO.pop("schema_type", None)
 375             sdn_RO.pop("description", None)
 376             desc = await RO.create("sdn", descriptor=sdn_RO)
 377             RO_sdn_id = desc["uuid"]
 378             db_sdn["_admin"]["deployed"]["RO"] = RO_sdn_id
 379             db_sdn["_admin"]["operationalState"] = "ENABLED"
 380             self.update_db("sdns", sdn_id, db_sdn)
 381             self.logger.debug(logging_text + "Exit Ok RO_sdn_id".format(RO_sdn_id))
 382             return RO_sdn_id
 383
 384         except (ROclient.ROClientException, DbException) as e:
 385             self.logger.error(logging_text + "Exit Exception {}".format(e))
 386             exc = e
 387         except Exception as e:
 388             self.logger.critical(logging_text + "Exit Exception {}".format(e), exc_info=True)
 389             exc = e
 390         finally:
 391             if exc and db_sdn:
 392                 db_sdn["_admin"]["operationalState"] = "ERROR"
 393                 db_sdn["_admin"]["detailed-status"] = "ERROR {}: {}".format(step, exc)
 394                 self.update_db("sdns", sdn_id, db_sdn)
 395
 396     async def sdn_edit(self, sdn_content, order_id):
 397         sdn_id = sdn_content["_id"]
 398         logging_text = "Task sdn_edit={} ".format(sdn_id)
 399         self.logger.debug(logging_text + "Enter")
 400         db_sdn = None
 401         exc = None
 402         step = "Getting sdn from db"
 403         try:
 404             db_sdn = self.db.get_one("sdns", {"_id": sdn_id})
 405             if db_sdn.get("_admin") and db_sdn["_admin"].get("deployed") and db_sdn["_admin"]["deployed"].get("RO"):
 406                 RO_sdn_id = db_sdn["_admin"]["deployed"]["RO"]
 407                 RO = ROclient.ROClient(self.loop, **self.ro_config)
 408                 step = "Editing sdn at RO"
 409                 sdn_RO = deepcopy(sdn_content)
 410                 sdn_RO.pop("_id", None)
 411                 sdn_RO.pop("_admin", None)
 412                 sdn_RO.pop("schema_version", None)
 413                 sdn_RO.pop("schema_type", None)
 414                 sdn_RO.pop("description", None)
 415                 if sdn_RO:
 416                     await RO.edit("sdn", RO_sdn_id, descriptor=sdn_RO)
 417                 db_sdn["_admin"]["operationalState"] = "ENABLED"
 418                 self.update_db("sdns", sdn_id, db_sdn)
 419
 420             self.logger.debug(logging_text + "Exit Ok RO_sdn_id".format(RO_sdn_id))
 421             return RO_sdn_id
 422
 423         except (ROclient.ROClientException, DbException) as e:
 424             self.logger.error(logging_text + "Exit Exception {}".format(e))
 425             exc = e
 426         except Exception as e:
 427             self.logger.critical(logging_text + "Exit Exception {}".format(e), exc_info=True)
 428             exc = e
 429         finally:
 430             if exc and db_sdn:
 431                 db_sdn["_admin"]["operationalState"] = "ERROR"
 432                 db_sdn["_admin"]["detailed-status"] = "ERROR {}: {}".format(step, exc)
 433                 self.update_db("sdns", sdn_id, db_sdn)
 434
 435     async def sdn_delete(self, sdn_id, order_id):
 436         logging_text = "Task sdn_delete={} ".format(sdn_id)
 437         self.logger.debug(logging_text + "Enter")
 438         db_sdn = None
 439         exc = None
 440         step = "Getting sdn from db"
 441         try:
 442             db_sdn = self.db.get_one("sdns", {"_id": sdn_id})
 443             if db_sdn.get("_admin") and db_sdn["_admin"].get("deployed") and db_sdn["_admin"]["deployed"].get("RO"):
 444                 RO_sdn_id = db_sdn["_admin"]["deployed"]["RO"]
 445                 RO = ROclient.ROClient(self.loop, **self.ro_config)
 446                 step = "Deleting sdn from RO"
 447                 try:
 448                     await RO.delete("sdn", RO_sdn_id)
 449                 except ROclient.ROClientException as e:
 450                     if e.http_code == 404:  # not found
 451                         self.logger.debug(logging_text + "RO_sdn_id={} already deleted".format(RO_sdn_id))
 452                     else:
 453                         raise
 454             else:
 455                 # nothing to delete
 456                 self.logger.error(logging_text + "Skipping. There is not RO information at database")
 457             self.db.del_one("sdns", {"_id": sdn_id})
 458             self.logger.debug("sdn_delete task sdn_id={} Exit Ok".format(sdn_id))
 459             return None
 460
 461         except (ROclient.ROClientException, DbException) as e:
 462             self.logger.error(logging_text + "Exit Exception {}".format(e))
 463             exc = e
 464         except Exception as e:
 465             self.logger.critical(logging_text + "Exit Exception {}".format(e), exc_info=True)
 466             exc = e
 467         finally:
 468             if exc and db_sdn:
 469                 db_sdn["_admin"]["operationalState"] = "ERROR"
 470                 db_sdn["_admin"]["detailed-status"] = "ERROR {}: {}".format(step, exc)
 471                 self.update_db("sdns", sdn_id, db_sdn)
 472
 473     def vnfd2RO(self, vnfd, new_id=None):
 474         """
 475         Converts creates a new vnfd descriptor for RO base on input OSM IM vnfd
 476         :param vnfd: input vnfd
 477         :param new_id: overrides vnf id if provided
 478         :return: copy of vnfd
 479         """
 480         ci_file = None
 481         try:
 482             vnfd_RO = deepcopy(vnfd)
 483             vnfd_RO.pop("_id", None)
 484             vnfd_RO.pop("_admin", None)
 485             if new_id:
 486                 vnfd_RO["id"] = new_id
 487             for vdu in vnfd_RO["vdu"]:
 488                 if "cloud-init-file" in vdu:
 489                     base_folder = vnfd["_admin"]["storage"]
 490                     clout_init_file = "{}/{}/cloud_init/{}".format(
 491                         base_folder["folder"],
 492                         base_folder["pkg-dir"],
 493                         vdu["cloud-init-file"]
 494                     )
 495                     ci_file = self.fs.file_open(clout_init_file, "r")
 496                     # TODO: detect if binary or text. Propose to read as binary and try to decode to utf8. If fails
 497                     #  convert to base 64 or similar
 498                     clout_init_content = ci_file.read()
 499                     ci_file.close()
 500                     ci_file = None
 501                     vdu.pop("cloud-init-file", None)
 502                     vdu["cloud-init"] = clout_init_content
 503             return vnfd_RO
 504         except FsException as e:
 505             raise LcmException("Error reading file at vnfd {}: {} ".format(vnfd["_id"], e))
 506         finally:
 507             if ci_file:
 508                 ci_file.close()
 509
 510     def n2vc_callback(self, model_name, application_name, status, message, db_nsr, db_nslcmop, member_vnf_index,
 511                       task=None):
 512         """
 513         Callback both for charm status change and task completion
 514         :param model_name: Charm model name
 515         :param application_name: Charm application name
 516         :param status: Can be
 517             - blocked: The unit needs manual intervention
 518             - maintenance: The unit is actively deploying/configuring
 519             - waiting: The unit is waiting for another charm to be ready
 520             - active: The unit is deployed, configured, and ready
 521             - error: The charm has failed and needs attention.
 522             - terminated: The charm has been destroyed
 523             - removing,
 524             - removed
 525         :param message: detailed message error
 526         :param db_nsr: nsr database content
 527         :param db_nslcmop: nslcmop database content
 528         :param member_vnf_index: NSD member-vnf-index
 529         :param task: None for charm status change, or task for completion task callback
 530         :return:
 531         """
 532         nsr_id = None
 533         nslcmop_id = None
 534         update_nsr = update_nslcmop = False
 535         try:
 536             nsr_id = db_nsr["_id"]
 537             nslcmop_id = db_nslcmop["_id"]
 538             nsr_lcm = db_nsr["_admin"]["deployed"]
 539             ns_action = db_nslcmop["lcmOperationType"]
 540             logging_text = "Task ns={} {}={} [n2vc_callback] vnf_index={}".format(nsr_id, ns_action, nslcmop_id,
 541                                                                                   member_vnf_index)
 542
 543             if task:
 544                 if task.cancelled():
 545                     self.logger.debug(logging_text + " task Cancelled")
 546                     # TODO update db_nslcmop
 547                     return
 548
 549                 if task.done():
 550                     exc = task.exception()
 551                     if exc:
 552                         self.logger.error(logging_text + " task Exception={}".format(exc))
 553                         if ns_action in ("instantiate", "terminate"):
 554                             nsr_lcm["VCA"][member_vnf_index]['operational-status'] = "error"
 555                             nsr_lcm["VCA"][member_vnf_index]['detailed-status'] = str(exc)
 556                         elif ns_action == "action":
 557                             db_nslcmop["operationState"] = "FAILED"
 558                             db_nslcmop["detailed-status"] = str(exc)
 559                             db_nslcmop["statusEnteredTime"] = time()
 560                             update_nslcmop = True
 561                             return
 562
 563                     else:
 564                         self.logger.debug(logging_text + " task Done")
 565                         # TODO revise with Adam if action is finished and ok when task is done
 566                         if ns_action == "action":
 567                             db_nslcmop["operationState"] = "COMPLETED"
 568                             db_nslcmop["detailed-status"] = "Done"
 569                             db_nslcmop["statusEnteredTime"] = time()
 570                             update_nslcmop = True
 571                         # task is Done, but callback is still ongoing. So ignore
 572                         return
 573             elif status:
 574                 self.logger.debug(logging_text + " Enter status={}".format(status))
 575                 if nsr_lcm["VCA"][member_vnf_index]['operational-status'] == status:
 576                     return  # same status, ignore
 577                 nsr_lcm["VCA"][member_vnf_index]['operational-status'] = status
 578                 nsr_lcm["VCA"][member_vnf_index]['detailed-status'] = str(message)
 579             else:
 580                 self.logger.critical(logging_text + " Enter with bad parameters", exc_info=True)
 581                 return
 582
 583             all_active = True
 584             status_map = {}
 585             n2vc_error_text = []   # contain text error list. If empty no one is in error status
 586             for vnf_index, vca_info in nsr_lcm["VCA"].items():
 587                 vca_status = vca_info["operational-status"]
 588                 if vca_status not in status_map:
 589                     # Initialize it
 590                     status_map[vca_status] = 0
 591                 status_map[vca_status] += 1
 592
 593                 if vca_status != "active":
 594                     all_active = False
 595                 elif vca_status in ("error", "blocked"):
 596                     n2vc_error_text.append("member_vnf_index={} {}: {}".format(member_vnf_index, vca_status,
 597                                                                                vca_info["detailed-status"]))
 598
 599             if all_active:
 600                 self.logger.debug("[n2vc_callback] ns_instantiate={} vnf_index={} All active".format(nsr_id,
 601                                                                                                      member_vnf_index))
 602                 db_nsr["config-status"] = "configured"
 603                 db_nsr["detailed-status"] = "done"
 604                 db_nslcmop["operationState"] = "COMPLETED"
 605                 db_nslcmop["detailed-status"] = "Done"
 606                 db_nslcmop["statusEnteredTime"] = time()
 607             elif n2vc_error_text:
 608                 db_nsr["config-status"] = "failed"
 609                 error_text = "fail configuring " + ";".join(n2vc_error_text)
 610                 db_nsr["detailed-status"] = error_text
 611                 db_nslcmop["operationState"] = "FAILED_TEMP"
 612                 db_nslcmop["detailed-status"] = error_text
 613                 db_nslcmop["statusEnteredTime"] = time()
 614             else:
 615                 cs = "configuring: "
 616                 separator = ""
 617                 for status, num in status_map.items():
 618                     cs += separator + "{}: {}".format(status, num)
 619                     separator = ", "
 620                 db_nsr["config-status"] = cs
 621                 db_nsr["detailed-status"] = cs
 622                 db_nslcmop["detailed-status"] = cs
 623             update_nsr = update_nslcmop = True
 624
 625         except Exception as e:
 626             self.logger.critical("[n2vc_callback] vnf_index={} Exception {}".format(member_vnf_index, e), exc_info=True)
 627         finally:
 628             try:
 629                 if update_nslcmop:
 630                     self.update_db("nslcmops", nslcmop_id, db_nslcmop)
 631                 if update_nsr:
 632                     self.update_db("nsrs", nsr_id, db_nsr)
 633             except Exception as e:
 634                 self.logger.critical("[n2vc_callback] vnf_index={} Update database Exception {}".format(
 635                     member_vnf_index, e), exc_info=True)
 636
 637     def ns_params_2_RO(self, ns_params):
 638         """
 639         Creates a RO ns descriptor from OSM ns_instantite params
 640         :param ns_params: OSM instantiate params
 641         :return: The RO ns descriptor
 642         """
 643         vim_2_RO = {}
 644
 645         def vim_account_2_RO(vim_account):
 646             if vim_account in vim_2_RO:
 647                 return vim_2_RO[vim_account]
 648             db_vim = self.db.get_one("vim_accounts", {"_id": vim_account})
 649             # if db_vim["_admin"]["operationalState"] == "PROCESSING":
 650             #     #TODO check if VIM is creating and wait
 651             if db_vim["_admin"]["operationalState"] != "ENABLED":
 652                 raise LcmException("VIM={} is not available. operationalState={}".format(
 653                     vim_account, db_vim["_admin"]["operationalState"]))
 654             RO_vim_id = db_vim["_admin"]["deployed"]["RO"]
 655             vim_2_RO[vim_account] = RO_vim_id
 656             return RO_vim_id
 657
 658         if not ns_params:
 659             return None
 660         RO_ns_params = {
 661             # "name": ns_params["nsName"],
 662             # "description": ns_params.get("nsDescription"),
 663             "datacenter": vim_account_2_RO(ns_params["vimAccountId"]),
 664             # "scenario": ns_params["nsdId"],
 665             "vnfs": {},
 666             "networks": {},
 667         }
 668         if ns_params.get("ssh-authorized-key"):
 669             RO_ns_params["cloud-config"] = {"key-pairs": ns_params["ssh-authorized-key"]}
 670         if ns_params.get("vnf"):
 671             for vnf in ns_params["vnf"]:
 672                 RO_vnf = {}
 673                 if "vimAccountId" in vnf:
 674                     RO_vnf["datacenter"] = vim_account_2_RO(vnf["vimAccountId"])
 675                 if RO_vnf:
 676                     RO_ns_params["vnfs"][vnf["member-vnf-index"]] = RO_vnf
 677         if ns_params.get("vld"):
 678             for vld in ns_params["vld"]:
 679                 RO_vld = {}
 680                 if "ip-profile" in vld:
 681                     RO_vld["ip-profile"] = vld["ip-profile"]
 682                 if "vim-network-name" in vld:
 683                     RO_vld["sites"] = []
 684                     if isinstance(vld["vim-network-name"], dict):
 685                         for vim_account, vim_net in vld["vim-network-name"].items():
 686                             RO_vld["sites"].append({
 687                                 "netmap-use": vim_net,
 688                                 "datacenter": vim_account_2_RO(vim_account)
 689                             })
 690                     else:  # isinstance str
 691                         RO_vld["sites"].append({"netmap-use": vld["vim-network-name"]})
 692                 if RO_vld:
 693                     RO_ns_params["networks"][vld["name"]] = RO_vld
 694         return RO_ns_params
 695
 696     async def ns_instantiate(self, nsr_id, nslcmop_id):
 697         logging_text = "Task ns={} instantiate={} ".format(nsr_id, nslcmop_id)
 698         self.logger.debug(logging_text + "Enter")
 699         # get all needed from database
 700         db_nsr = None
 701         db_nslcmop = None
 702         db_vnfr = {}
 703         exc = None
 704         try:
 705             step = "Getting nslcmop={} from db".format(nslcmop_id)
 706             db_nslcmop = self.db.get_one("nslcmops", {"_id": nslcmop_id})
 707             step = "Getting nsr={} from db".format(nsr_id)
 708             db_nsr = self.db.get_one("nsrs", {"_id": nsr_id})
 709             nsd = db_nsr["nsd"]
 710             nsr_name = db_nsr["name"]   # TODO short-name??
 711             needed_vnfd = {}
 712             vnfr_filter = {"nsr-id-ref": nsr_id, "member-vnf-index-ref": None}
 713             for c_vnf in nsd["constituent-vnfd"]:
 714                 vnfd_id = c_vnf["vnfd-id-ref"]
 715                 vnfr_filter["member-vnf-index-ref"] = c_vnf["member-vnf-index"]
 716                 db_vnfr[c_vnf["member-vnf-index"]] = self.db.get_one("vnfrs", vnfr_filter)
 717                 if vnfd_id not in needed_vnfd:
 718                     step = "Getting vnfd={} from db".format(vnfd_id)
 719                     needed_vnfd[vnfd_id] = self.db.get_one("vnfds", {"id": vnfd_id})
 720
 721             nsr_lcm = db_nsr["_admin"].get("deployed")
 722             if not nsr_lcm:
 723                 nsr_lcm = db_nsr["_admin"]["deployed"] = {
 724                     "id": nsr_id,
 725                     "RO": {"vnfd_id": {}, "nsd_id": None, "nsr_id": None, "nsr_status": "SCHEDULED"},
 726                     "nsr_ip": {},
 727                     "VCA": {},
 728                 }
 729             db_nsr["detailed-status"] = "creating"
 730             db_nsr["operational-status"] = "init"
 731
 732             RO = ROclient.ROClient(self.loop, **self.ro_config)
 733
 734             # get vnfds, instantiate at RO
 735             for vnfd_id, vnfd in needed_vnfd.items():
 736                 step = db_nsr["detailed-status"] = "Creating vnfd={} at RO".format(vnfd_id)
 737                 # self.logger.debug(logging_text + step)
 738                 vnfd_id_RO = nsr_id + "." + vnfd_id[:200]
 739
 740                 # look if present
 741                 vnfd_list = await RO.get_list("vnfd", filter_by={"osm_id": vnfd_id_RO})
 742                 if vnfd_list:
 743                     nsr_lcm["RO"]["vnfd_id"][vnfd_id] = vnfd_list[0]["uuid"]
 744                     self.logger.debug(logging_text + "vnfd={} exists at RO. Using RO_id={}".format(
 745                         vnfd_id, vnfd_list[0]["uuid"]))
 746                 else:
 747                     vnfd_RO = self.vnfd2RO(vnfd, vnfd_id_RO)
 748                     desc = await RO.create("vnfd", descriptor=vnfd_RO)
 749                     nsr_lcm["RO"]["vnfd_id"][vnfd_id] = desc["uuid"]
 750                     db_nsr["_admin"]["nsState"] = "INSTANTIATED"
 751                     self.logger.debug(logging_text + "vnfd={} created at RO. RO_id={}".format(
 752                         vnfd_id, desc["uuid"]))
 753                 self.update_db("nsrs", nsr_id, db_nsr)
 754
 755             # create nsd at RO
 756             nsd_id = nsd["id"]
 757             step = db_nsr["detailed-status"] = "Creating nsd={} at RO".format(nsd_id)
 758             # self.logger.debug(logging_text + step)
 759
 760             nsd_id_RO = nsr_id + "." + nsd_id[:200]
 761             nsd_list = await RO.get_list("nsd", filter_by={"osm_id": nsd_id_RO})
 762             if nsd_list:
 763                 nsr_lcm["RO"]["nsd_id"] = nsd_list[0]["uuid"]
 764                 self.logger.debug(logging_text + "nsd={} exists at RO. Using RO_id={}".format(
 765                     nsd_id, nsd_list[0]["uuid"]))
 766             else:
 767                 nsd_RO = deepcopy(nsd)
 768                 nsd_RO["id"] = nsd_id_RO
 769                 nsd_RO.pop("_id", None)
 770                 nsd_RO.pop("_admin", None)
 771                 for c_vnf in nsd_RO["constituent-vnfd"]:
 772                     vnfd_id = c_vnf["vnfd-id-ref"]
 773                     c_vnf["vnfd-id-ref"] = nsr_id + "." + vnfd_id[:200]
 774                 desc = await RO.create("nsd", descriptor=nsd_RO)
 775                 db_nsr["_admin"]["nsState"] = "INSTANTIATED"
 776                 nsr_lcm["RO"]["nsd_id"] = desc["uuid"]
 777                 self.logger.debug(logging_text + "nsd={} created at RO. RO_id={}".format(nsd_id, desc["uuid"]))
 778             self.update_db("nsrs", nsr_id, db_nsr)
 779
 780             # Crate ns at RO
 781             # if present use it unless in error status
 782             RO_nsr_id = nsr_lcm["RO"].get("nsr_id")
 783             if RO_nsr_id:
 784                 try:
 785                     step = db_nsr["detailed-status"] = "Looking for existing ns at RO"
 786                     # self.logger.debug(logging_text + step + " RO_ns_id={}".format(RO_nsr_id))
 787                     desc = await RO.show("ns", RO_nsr_id)
 788                 except ROclient.ROClientException as e:
 789                     if e.http_code != HTTPStatus.NOT_FOUND:
 790                         raise
 791                     RO_nsr_id = nsr_lcm["RO"]["nsr_id"] = None
 792                 if RO_nsr_id:
 793                     ns_status, ns_status_info = RO.check_ns_status(desc)
 794                     nsr_lcm["RO"]["nsr_status"] = ns_status
 795                     if ns_status == "ERROR":
 796                         step = db_nsr["detailed-status"] = "Deleting ns at RO. RO_ns_id={}".format(RO_nsr_id)
 797                         self.logger.debug(logging_text + step)
 798                         await RO.delete("ns", RO_nsr_id)
 799                         RO_nsr_id = nsr_lcm["RO"]["nsr_id"] = None
 800             if not RO_nsr_id:
 801                 step = db_nsr["detailed-status"] = "Creating ns at RO"
 802                 # self.logger.debug(logging_text + step)
 803                 RO_ns_params = self.ns_params_2_RO(db_nsr.get("instantiate_params"))
 804                 desc = await RO.create("ns", descriptor=RO_ns_params,
 805                                        name=db_nsr["name"],
 806                                        scenario=nsr_lcm["RO"]["nsd_id"])
 807                 RO_nsr_id = nsr_lcm["RO"]["nsr_id"] = desc["uuid"]
 808                 db_nsr["_admin"]["nsState"] = "INSTANTIATED"
 809                 nsr_lcm["RO"]["nsr_status"] = "BUILD"
 810                 self.logger.debug(logging_text + "ns created at RO. RO_id={}".format(desc["uuid"]))
 811             self.update_db("nsrs", nsr_id, db_nsr)
 812
 813             # update VNFR vimAccount
 814             step = "Updating VNFR vimAcccount"
 815             for vnf_index, vnfr in db_vnfr.items():
 816                 if vnfr.get("vim-account-id"):
 817                     continue
 818                 if db_nsr["instantiate_params"].get("vnf") and db_nsr["instantiate_params"]["vnf"].get(vnf_index) \
 819                         and db_nsr["instantiate_params"]["vnf"][vnf_index].get("vimAccountId"):
 820                     vnfr["vim-account-id"] = db_nsr["instantiate_params"]["vnf"][vnf_index]["vimAccountId"]
 821                 else:
 822                     vnfr["vim-account-id"] = db_nsr["instantiate_params"]["vimAccountId"]
 823                 self.update_db("vnfrs", vnfr["_id"], vnfr)
 824
 825             # wait until NS is ready
 826             step = ns_status_detailed = "Waiting ns ready at RO. RO_id={}".format(RO_nsr_id)
 827             db_nsr["detailed-status"] = ns_status_detailed
 828             self.logger.debug(logging_text + step)
 829             deployment_timeout = 2 * 3600   # Two hours
 830             while deployment_timeout > 0:
 831                 desc = await RO.show("ns", RO_nsr_id)
 832                 ns_status, ns_status_info = RO.check_ns_status(desc)
 833                 nsr_lcm["RO"]["nsr_status"] = ns_status
 834                 if ns_status == "ERROR":
 835                     raise ROclient.ROClientException(ns_status_info)
 836                 elif ns_status == "BUILD":
 837                     db_nsr_detailed_status_old = db_nsr["detailed-status"]
 838                     db_nsr["detailed-status"] = ns_status_detailed + "; {}".format(ns_status_info)
 839                     if db_nsr_detailed_status_old != db_nsr["detailed-status"]:
 840                         self.update_db("nsrs", nsr_id, db_nsr)
 841                 elif ns_status == "ACTIVE":
 842                     step = "Waiting for management IP address from VIM"
 843                     try:
 844                         ns_RO_info = nsr_lcm["nsr_ip"] = RO.get_ns_vnf_info(desc)
 845                         break
 846                     except ROclient.ROClientException as e:
 847                         if e.http_code != 409:  # IP address is not ready return code is 409 CONFLICT
 848                             raise e
 849                 else:
 850                     assert False, "ROclient.check_ns_status returns unknown {}".format(ns_status)
 851                 await asyncio.sleep(5, loop=self.loop)
 852                 deployment_timeout -= 5
 853             if deployment_timeout <= 0:
 854                 raise ROclient.ROClientException("Timeout waiting ns to be ready")
 855
 856             step = "Updating VNFRs"
 857             for vnf_index, vnfr_deployed in ns_RO_info.items():
 858                 vnfr = db_vnfr[vnf_index]
 859                 vnfr["ip-address"] = vnfr_deployed.get("ip_address")
 860                 for vdu_id, vdu_deployed in vnfr_deployed["vdur"].items():
 861                     for vdur in vnfr["vdur"]:
 862                         if vdur["vdu-id-ref"] == vdu_id:
 863                             vdur["vim-id"] = vdu_deployed.get("vim_id")
 864                             vdur["ip-address"] = vdu_deployed.get("ip_address")
 865                             break
 866                 self.update_db("vnfrs", vnfr["_id"], vnfr)
 867
 868             db_nsr["detailed-status"] = "Configuring vnfr"
 869             self.update_db("nsrs", nsr_id, db_nsr)
 870
 871             # The parameters we'll need to deploy a charm
 872             number_to_configure = 0
 873
 874             def deploy():
 875                 """An inner function to deploy the charm from either vnf or vdu
 876                 """
 877
 878                 # Login to the VCA.
 879                 # if number_to_configure == 0:
 880                 #     self.logger.debug("Logging into N2VC...")
 881                 #     task = asyncio.ensure_future(self.n2vc.login())
 882                 #     yield from asyncio.wait_for(task, 30.0)
 883                 #     self.logger.debug("Logged into N2VC!")
 884
 885                 # # await self.n2vc.login()
 886
 887                 # Note: The charm needs to exist on disk at the location
 888                 # specified by charm_path.
 889                 base_folder = vnfd["_admin"]["storage"]
 890                 storage_params = self.fs.get_params()
 891                 charm_path = "{}{}/{}/charms/{}".format(
 892                     storage_params["path"],
 893                     base_folder["folder"],
 894                     base_folder["pkg-dir"],
 895                     proxy_charm
 896                 )
 897
 898                 # Setup the runtime parameters for this VNF
 899                 params['rw_mgmt_ip'] = db_vnfr[vnf_index]["ip-address"]
 900
 901                 # ns_name will be ignored in the current version of N2VC
 902                 # but will be implemented for the next point release.
 903                 model_name = 'default'
 904                 application_name = self.n2vc.FormatApplicationName(
 905                     nsr_name,
 906                     vnf_index,
 907                     vnfd['name'],
 908                 )
 909
 910                 nsr_lcm["VCA"][vnf_index] = {
 911                     "model": model_name,
 912                     "application": application_name,
 913                     "operational-status": "init",
 914                     "detailed-status": "",
 915                     "vnfd_id": vnfd_id,
 916                 }
 917
 918                 self.logger.debug("Task create_ns={} Passing artifacts path '{}' for {}".format(nsr_id, charm_path,
 919                                                                                                 proxy_charm))
 920                 task = asyncio.ensure_future(
 921                     self.n2vc.DeployCharms(
 922                         model_name,          # The network service name
 923                         application_name,    # The application name
 924                         vnfd,                # The vnf descriptor
 925                         charm_path,          # Path to charm
 926                         params,              # Runtime params, like mgmt ip
 927                         {},                  # for native charms only
 928                         self.n2vc_callback,  # Callback for status changes
 929                         db_nsr,              # Callback parameter
 930                         db_nslcmop,
 931                         vnf_index,           # Callback parameter
 932                         None,                # Callback parameter (task)
 933                     )
 934                 )
 935                 task.add_done_callback(functools.partial(self.n2vc_callback, model_name, application_name, None, None,
 936                                                          db_nsr, db_nslcmop, vnf_index))
 937                 self.lcm_ns_tasks[nsr_id][nslcmop_id]["create_charm:" + vnf_index] = task
 938
 939             # TODO: Make this call inside deploy()
 940             # Login to the VCA. If there are multiple calls to login(),
 941             # subsequent calls will be a nop and return immediately.
 942             await self.n2vc.login()
 943
 944             step = "Looking for needed vnfd to configure"
 945             self.logger.debug(logging_text + step)
 946             for c_vnf in nsd["constituent-vnfd"]:
 947                 vnfd_id = c_vnf["vnfd-id-ref"]
 948                 vnf_index = str(c_vnf["member-vnf-index"])
 949                 vnfd = needed_vnfd[vnfd_id]
 950
 951                 # Check if this VNF has a charm configuration
 952                 vnf_config = vnfd.get("vnf-configuration")
 953
 954                 if vnf_config and vnf_config.get("juju"):
 955                     proxy_charm = vnf_config["juju"]["charm"]
 956                     params = {}
 957
 958                     if proxy_charm:
 959                         if 'initial-config-primitive' in vnf_config:
 960                             params['initial-config-primitive'] = vnf_config['initial-config-primitive']
 961
 962                         deploy()
 963                         number_to_configure += 1
 964
 965                 # Deploy charms for each VDU that supports one.
 966                 for vdu in vnfd['vdu']:
 967                     vdu_config = vdu.get('vdu-configuration')
 968                     proxy_charm = None
 969                     params = {}
 970
 971                     if vdu_config and vdu_config.get("juju"):
 972                         proxy_charm = vdu_config["juju"]["charm"]
 973
 974                         if 'initial-config-primitive' in vdu_config:
 975                             params['initial-config-primitive'] = vdu_config['initial-config-primitive']
 976
 977                         if proxy_charm:
 978                             deploy()
 979                             number_to_configure += 1
 980
 981             if number_to_configure:
 982                 db_nsr["config-status"] = "configuring"
 983                 db_nsr["detailed-status"] = "configuring: init: {}".format(number_to_configure)
 984                 db_nslcmop["detailed-status"] = "configuring: init: {}".format(number_to_configure)
 985             else:
 986                 db_nslcmop["operationState"] = "COMPLETED"
 987                 db_nslcmop["statusEnteredTime"] = time()
 988                 db_nslcmop["detailed-status"] = "done"
 989                 db_nsr["config-status"] = "configured"
 990                 db_nsr["detailed-status"] = "done"
 991             db_nsr["operational-status"] = "running"
 992             self.update_db("nsrs", nsr_id, db_nsr)
 993             self.update_db("nslcmops", nslcmop_id, db_nslcmop)
 994             self.logger.debug("Task ns_instantiate={} Exit Ok".format(nsr_id))
 995             return nsr_lcm
 996
 997         except (ROclient.ROClientException, DbException, LcmException) as e:
 998             self.logger.error(logging_text + "Exit Exception while '{}': {}".format(step, e))
 999             exc = e
1000         except Exception as e:
1001             self.logger.critical(logging_text + "Exit Exception {} while '{}': {}".format(type(e).__name__, step, e),
1002                                  exc_info=True)
1003             exc = e
1004         finally:
1005             if exc:
1006                 if db_nsr:
1007                     db_nsr["detailed-status"] = "ERROR {}: {}".format(step, exc)
1008                     db_nsr["operational-status"] = "failed"
1009                     self.update_db("nsrs", nsr_id, db_nsr)
1010                 if db_nslcmop:
1011                     db_nslcmop["detailed-status"] = "FAILED {}: {}".format(step, exc)
1012                     db_nslcmop["operationState"] = "FAILED"
1013                     db_nslcmop["statusEnteredTime"] = time()
1014                     self.update_db("nslcmops", nslcmop_id, db_nslcmop)
1015
1016     async def ns_terminate(self, nsr_id, nslcmop_id):
1017         logging_text = "Task ns={} terminate={} ".format(nsr_id, nslcmop_id)
1018         self.logger.debug(logging_text + "Enter")
1019         db_nsr = None
1020         db_nslcmop = None
1021         exc = None
1022         step = "Getting nsr, nslcmop from db"
1023         failed_detail = []   # annotates all failed error messages
1024         vca_task_list = []
1025         vca_task_dict = {}
1026         try:
1027             db_nslcmop = self.db.get_one("nslcmops", {"_id": nslcmop_id})
1028             db_nsr = self.db.get_one("nsrs", {"_id": nsr_id})
1029             # nsd = db_nsr["nsd"]
1030             nsr_lcm = deepcopy(db_nsr["_admin"]["deployed"])
1031             if db_nsr["_admin"]["nsState"] == "NOT_INSTANTIATED":
1032                 return
1033             # TODO ALF remove
1034             # db_vim = self.db.get_one("vim_accounts", {"_id":  db_nsr["datacenter"]})
1035             # #TODO check if VIM is creating and wait
1036             # RO_vim_id = db_vim["_admin"]["deployed"]["RO"]
1037
1038             db_nsr_update = {
1039                 "operational-status": "terminating",
1040                 "config-status": "terminating",
1041                 "detailed-status": "Deleting charms",
1042             }
1043             self.update_db_2("nsrs", nsr_id, db_nsr_update)
1044
1045             try:
1046                 self.logger.debug(logging_text + step)
1047                 for vnf_index, deploy_info in nsr_lcm["VCA"].items():
1048                     if deploy_info and deploy_info.get("application"):
1049                         task = asyncio.ensure_future(
1050                             self.n2vc.RemoveCharms(
1051                                 deploy_info['model'],
1052                                 deploy_info['application'],
1053                                 # self.n2vc_callback,
1054                                 # db_nsr,
1055                                 # db_nslcmop,
1056                                 # vnf_index,
1057                             )
1058                         )
1059                         vca_task_list.append(task)
1060                         vca_task_dict[vnf_index] = task
1061                         # task.add_done_callback(functools.partial(self.n2vc_callback, deploy_info['model'],
1062                         #                                          deploy_info['application'], None, db_nsr,
1063                         #                                          db_nslcmop, vnf_index))
1064                         self.lcm_ns_tasks[nsr_id][nslcmop_id]["delete_charm:" + vnf_index] = task
1065             except Exception as e:
1066                 self.logger.debug(logging_text + "Failed while deleting charms: {}".format(e))
1067             # remove from RO
1068
1069             RO = ROclient.ROClient(self.loop, **self.ro_config)
1070             # Delete ns
1071             RO_nsr_id = nsr_lcm["RO"].get("nsr_id")
1072             if RO_nsr_id:
1073                 try:
1074                     step = db_nsr["detailed-status"] = "Deleting ns at RO"
1075                     self.logger.debug(logging_text + step)
1076                     await RO.delete("ns", RO_nsr_id)
1077                     nsr_lcm["RO"]["nsr_id"] = None
1078                     nsr_lcm["RO"]["nsr_status"] = "DELETED"
1079                 except ROclient.ROClientException as e:
1080                     if e.http_code == 404:  # not found
1081                         nsr_lcm["RO"]["nsr_id"] = None
1082                         nsr_lcm["RO"]["nsr_status"] = "DELETED"
1083                         self.logger.debug(logging_text + "RO_ns_id={} already deleted".format(RO_nsr_id))
1084                     elif e.http_code == 409:   # conflict
1085                         failed_detail.append("RO_ns_id={} delete conflict: {}".format(RO_nsr_id, e))
1086                         self.logger.debug(logging_text + failed_detail[-1])
1087                     else:
1088                         failed_detail.append("RO_ns_id={} delete error: {}".format(RO_nsr_id, e))
1089                         self.logger.error(logging_text + failed_detail[-1])
1090
1091             # Delete nsd
1092             RO_nsd_id = nsr_lcm["RO"]["nsd_id"]
1093             if RO_nsd_id:
1094                 try:
1095                     step = db_nsr["detailed-status"] = "Deleting nsd at RO"
1096                     await RO.delete("nsd", RO_nsd_id)
1097                     self.logger.debug(logging_text + "RO_nsd_id={} deleted".format(RO_nsd_id))
1098                     nsr_lcm["RO"]["nsd_id"] = None
1099                 except ROclient.ROClientException as e:
1100                     if e.http_code == 404:  # not found
1101                         nsr_lcm["RO"]["nsd_id"] = None
1102                         self.logger.debug(logging_text + "RO_nsd_id={} already deleted".format(RO_nsd_id))
1103                     elif e.http_code == 409:   # conflict
1104                         failed_detail.append("RO_nsd_id={} delete conflict: {}".format(RO_nsd_id, e))
1105                         self.logger.debug(logging_text + failed_detail[-1])
1106                     else:
1107                         failed_detail.append("RO_nsd_id={} delete error: {}".format(RO_nsd_id, e))
1108                         self.logger.error(logging_text + failed_detail[-1])
1109
1110             for vnf_id, RO_vnfd_id in nsr_lcm["RO"]["vnfd_id"].items():
1111                 if not RO_vnfd_id:
1112                     continue
1113                 try:
1114                     step = db_nsr["detailed-status"] = "Deleting vnfd={} at RO".format(vnf_id)
1115                     await RO.delete("vnfd", RO_vnfd_id)
1116                     self.logger.debug(logging_text + "RO_vnfd_id={} deleted".format(RO_vnfd_id))
1117                     nsr_lcm["RO"]["vnfd_id"][vnf_id] = None
1118                 except ROclient.ROClientException as e:
1119                     if e.http_code == 404:  # not found
1120                         nsr_lcm["RO"]["vnfd_id"][vnf_id] = None
1121                         self.logger.debug(logging_text + "RO_vnfd_id={} already deleted ".format(RO_vnfd_id))
1122                     elif e.http_code == 409:   # conflict
1123                         failed_detail.append("RO_vnfd_id={} delete conflict: {}".format(RO_vnfd_id, e))
1124                         self.logger.debug(logging_text + failed_detail[-1])
1125                     else:
1126                         failed_detail.append("RO_vnfd_id={} delete error: {}".format(RO_vnfd_id, e))
1127                         self.logger.error(logging_text + failed_detail[-1])
1128
1129             if vca_task_list:
1130                 await asyncio.wait(vca_task_list, timeout=300)
1131             for vnf_index, task in vca_task_dict.items():
1132                 if task.cancelled():
1133                     failed_detail.append("VCA[{}] Deletion has been cancelled".format(vnf_index))
1134                 elif task.done():
1135                     exc = task.exception()
1136                     if exc:
1137                         failed_detail.append("VCA[{}] Deletion exception: {}".format(vnf_index, exc))
1138                     else:
1139                         nsr_lcm["VCA"][vnf_index] = None
1140                 else:  # timeout
1141                     # TODO Should it be cancelled?!!
1142                     task.cancel()
1143                     failed_detail.append("VCA[{}] Deletion timeout".format(vnf_index))
1144
1145             if failed_detail:
1146                 self.logger.error(logging_text + " ;".join(failed_detail))
1147                 db_nsr_update = {
1148                     "operational-status": "failed",
1149                     "detailed-status": "Deletion errors " + "; ".join(failed_detail),
1150                     "_admin.deployed": nsr_lcm
1151                 }
1152                 db_nslcmop_update = {
1153                     "detailed-status": "; ".join(failed_detail),
1154                     "operationState": "FAILED",
1155                     "statusEnteredTime": time()
1156                 }
1157             elif db_nslcmop["operationParams"].get("autoremove"):
1158                 self.db.del_one("nsrs", {"_id": nsr_id})
1159                 self.db.del_list("nslcmops", {"nsInstanceId": nsr_id})
1160                 self.db.del_list("vnfrs", {"nsr-id-ref": nsr_id})
1161             else:
1162                 db_nsr_update = {
1163                     "operational-status": "terminated",
1164                     "detailed-status": "Done",
1165                     "_admin.deployed": nsr_lcm,
1166                     "_admin.nsState": "NOT_INSTANTIATED"
1167                 }
1168                 db_nslcmop_update = {
1169                     "detailed-status": "Done",
1170                     "operationState": "COMPLETED",
1171                     "statusEnteredTime": time()
1172                 }
1173             self.logger.debug(logging_text + "Exit")
1174
1175         except (ROclient.ROClientException, DbException) as e:
1176             self.logger.error(logging_text + "Exit Exception {}".format(e))
1177             exc = e
1178         except Exception as e:
1179             self.logger.critical(logging_text + "Exit Exception {}".format(e), exc_info=True)
1180             exc = e
1181         finally:
1182             if exc and db_nslcmop:
1183                 db_nslcmop_update = {
1184                     "detailed-status": "FAILED {}: {}".format(step, exc),
1185                     "operationState": "FAILED",
1186                     "statusEnteredTime": time(),
1187                 }
1188             if db_nslcmop_update:
1189                 self.update_db_2("nslcmops", nslcmop_id, db_nslcmop_update)
1190             if db_nsr_update:
1191                 self.update_db_2("nsrs", nsr_id, db_nsr_update)
1192
1193     async def ns_action(self, nsr_id, nslcmop_id):
1194         logging_text = "Task ns={} action={} ".format(nsr_id, nslcmop_id)
1195         self.logger.debug(logging_text + "Enter")
1196         # get all needed from database
1197         db_nsr = None
1198         db_nslcmop = None
1199         db_nslcmop_update = None
1200         exc = None
1201         try:
1202             step = "Getting information from database"
1203             db_nslcmop = self.db.get_one("nslcmops", {"_id": nslcmop_id})
1204             db_nsr = self.db.get_one("nsrs", {"_id": nsr_id})
1205             nsr_lcm = db_nsr["_admin"].get("deployed")
1206             vnf_index = db_nslcmop["operationParams"]["member_vnf_index"]
1207
1208             # TODO check if ns is in a proper status
1209             vca_deployed = nsr_lcm["VCA"].get(vnf_index)
1210             if not vca_deployed:
1211                 raise LcmException("charm for member_vnf_index={} is not deployed".format(vnf_index))
1212             model_name = vca_deployed.get("model")
1213             application_name = vca_deployed.get("application")
1214             if not model_name or not application_name:
1215                 raise LcmException("charm for member_vnf_index={} is not properly deployed".format(vnf_index))
1216             if vca_deployed["operational-status"] != "active":
1217                 raise LcmException("charm for member_vnf_index={} operational_status={} not 'active'".format(
1218                     vnf_index, vca_deployed["operational-status"]))
1219             primitive = db_nslcmop["operationParams"]["primitive"]
1220             primitive_params = db_nslcmop["operationParams"]["primitive_params"]
1221             callback = None     # self.n2vc_callback
1222             callback_args = ()  # [db_nsr, db_nslcmop, vnf_index, None]
1223             await self.n2vc.login()
1224             task = asyncio.ensure_future(
1225                 self.n2vc.ExecutePrimitive(
1226                     model_name,
1227                     application_name,
1228                     primitive, callback,
1229                     *callback_args,
1230                     **primitive_params
1231                 )
1232             )
1233             # task.add_done_callback(functools.partial(self.n2vc_callback, model_name, application_name, None,
1234             #                                          db_nsr, db_nslcmop, vnf_index))
1235             # self.lcm_ns_tasks[nsr_id][nslcmop_id]["action: " + primitive] = task
1236             # wait until completed with timeout
1237             await asyncio.wait((task,), timeout=300)
1238
1239             result = "FAILED"  # by default
1240             result_detail = ""
1241             if task.cancelled():
1242                 db_nslcmop["detailed-status"] = "Task has been cancelled"
1243             elif task.done():
1244                 exc = task.exception()
1245                 if exc:
1246                     result_detail = str(exc)
1247                 else:
1248                     self.logger.debug(logging_text + " task Done")
1249                     # TODO revise with Adam if action is finished and ok when task is done or callback is needed
1250                     result = "COMPLETED"
1251                     result_detail = "Done"
1252             else:   # timeout
1253                 # TODO Should it be cancelled?!!
1254                 task.cancel()
1255                 result_detail = "timeout"
1256
1257             db_nslcmop_update = {
1258                 "detailed-status": result_detail,
1259                 "operationState": result,
1260                 "statusEnteredTime": time()
1261             }
1262             self.logger.debug(logging_text + " task Done with result {} {}".format(result, result_detail))
1263             return  # database update is called inside finally
1264
1265         except (DbException, LcmException) as e:
1266             self.logger.error(logging_text + "Exit Exception {}".format(e))
1267             exc = e
1268         except Exception as e:
1269             self.logger.critical(logging_text + "Exit Exception {} {}".format(type(e).__name__, e), exc_info=True)
1270             exc = e
1271         finally:
1272             if exc and db_nslcmop:
1273                 db_nslcmop_update = {
1274                     "detailed-status": "FAILED {}: {}".format(step, exc),
1275                     "operationState": "FAILED",
1276                     "statusEnteredTime": time(),
1277                 }
1278             if db_nslcmop_update:
1279                 self.update_db_2("nslcmops", nslcmop_id, db_nslcmop_update)
1280
1281     async def test(self, param=None):
1282         self.logger.debug("Starting/Ending test task: {}".format(param))
1283
1284     def cancel_tasks(self, topic, _id):
1285         """
1286         Cancel all active tasks of a concrete nsr or vim identified for _id
1287         :param topic: can be ns or vim_account
1288         :param _id:  nsr or vim identity
1289         :return: None, or raises an exception if not possible
1290         """
1291         if topic == "ns":
1292             lcm_tasks = self.lcm_ns_tasks
1293         elif topic == "vim_account":
1294             lcm_tasks = self.lcm_vim_tasks
1295         elif topic == "sdn":
1296             lcm_tasks = self.lcm_sdn_tasks
1297
1298         if not lcm_tasks.get(_id):
1299             return
1300         for order_id, tasks_set in lcm_tasks[_id].items():
1301             for task_name, task in tasks_set.items():
1302                 result = task.cancel()
1303                 if result:
1304                     self.logger.debug("{} _id={} order_id={} task={} cancelled".format(topic, _id, order_id, task_name))
1305         lcm_tasks[_id] = {}
1306
1307     async def kafka_ping(self):
1308         self.logger.debug("Task kafka_ping Enter")
1309         consecutive_errors = 0
1310         first_start = True
1311         kafka_has_received = False
1312         self.pings_not_received = 1
1313         while True:
1314             try:
1315                 await self.msg.aiowrite("admin", "ping", {"from": "lcm", "to": "lcm"}, self.loop)
1316                 # time between pings are low when it is not received and at starting
1317                 wait_time = 5 if not kafka_has_received else 120
1318                 if not self.pings_not_received:
1319                     kafka_has_received = True
1320                 self.pings_not_received += 1
1321                 await asyncio.sleep(wait_time, loop=self.loop)
1322                 if self.pings_not_received > 10:
1323                     raise LcmException("It is not receiving pings from Kafka bus")
1324                 consecutive_errors = 0
1325                 first_start = False
1326             except LcmException:
1327                 raise
1328             except Exception as e:
1329                 # if not first_start is the first time after starting. So leave more time and wait
1330                 # to allow kafka starts
1331                 if consecutive_errors == 8 if not first_start else 30:
1332                     self.logger.error("Task kafka_read task exit error too many errors. Exception: {}".format(e))
1333                     raise
1334                 consecutive_errors += 1
1335                 self.logger.error("Task kafka_read retrying after Exception {}".format(e))
1336                 wait_time = 1 if not first_start else 5
1337                 await asyncio.sleep(wait_time, loop=self.loop)
1338
1339     async def kafka_read(self):
1340         self.logger.debug("Task kafka_read Enter")
1341         order_id = 1
1342         # future = asyncio.Future()
1343         consecutive_errors = 0
1344         first_start = True
1345         while consecutive_errors < 10:
1346             try:
1347                 topics = ("admin", "ns", "vim_account", "sdn")
1348                 topic, command, params = await self.msg.aioread(topics, self.loop)
1349                 if topic != "admin" and command != "ping":
1350                     self.logger.debug("Task kafka_read receives {} {}: {}".format(topic, command, params))
1351                 consecutive_errors = 0
1352                 first_start = False
1353                 order_id += 1
1354                 if command == "exit":
1355                     print("Bye!")
1356                     break
1357                 elif command.startswith("#"):
1358                     continue
1359                 elif command == "echo":
1360                     # just for test
1361                     print(params)
1362                     sys.stdout.flush()
1363                     continue
1364                 elif command == "test":
1365                     asyncio.Task(self.test(params), loop=self.loop)
1366                     continue
1367
1368                 if topic == "admin":
1369                     if command == "ping" and params["to"] == "lcm" and params["from"] == "lcm":
1370                         self.pings_not_received = 0
1371                     continue
1372                 elif topic == "ns":
1373                     if command == "instantiate":
1374                         # self.logger.debug("Deploying NS {}".format(nsr_id))
1375                         nslcmop = params
1376                         nslcmop_id = nslcmop["_id"]
1377                         nsr_id = nslcmop["nsInstanceId"]
1378                         task = asyncio.ensure_future(self.ns_instantiate(nsr_id, nslcmop_id))
1379                         if nsr_id not in self.lcm_ns_tasks:
1380                             self.lcm_ns_tasks[nsr_id] = {}
1381                         self.lcm_ns_tasks[nsr_id][nslcmop_id] = {"ns_instantiate": task}
1382                         continue
1383                     elif command == "terminate":
1384                         # self.logger.debug("Deleting NS {}".format(nsr_id))
1385                         nslcmop = params
1386                         nslcmop_id = nslcmop["_id"]
1387                         nsr_id = nslcmop["nsInstanceId"]
1388                         self.cancel_tasks(topic, nsr_id)
1389                         task = asyncio.ensure_future(self.ns_terminate(nsr_id, nslcmop_id))
1390                         if nsr_id not in self.lcm_ns_tasks:
1391                             self.lcm_ns_tasks[nsr_id] = {}
1392                         self.lcm_ns_tasks[nsr_id][nslcmop_id] = {"ns_terminate": task}
1393                         continue
1394                     elif command == "action":
1395                         # self.logger.debug("Update NS {}".format(nsr_id))
1396                         nslcmop = params
1397                         nslcmop_id = nslcmop["_id"]
1398                         nsr_id = nslcmop["nsInstanceId"]
1399                         task = asyncio.ensure_future(self.ns_action(nsr_id, nslcmop_id))
1400                         if nsr_id not in self.lcm_ns_tasks:
1401                             self.lcm_ns_tasks[nsr_id] = {}
1402                         self.lcm_ns_tasks[nsr_id][nslcmop_id] = {"ns_action": task}
1403                         continue
1404                     elif command == "show":
1405                         try:
1406                             db_nsr = self.db.get_one("nsrs", {"_id": nsr_id})
1407                             print("nsr:\n    _id={}\n    operational-status: {}\n    config-status: {}"
1408                                   "\n    detailed-status: {}\n    deploy: {}\n    tasks: {}"
1409                                   "".format(nsr_id, db_nsr["operational-status"], db_nsr["config-status"],
1410                                             db_nsr["detailed-status"],
1411                                             db_nsr["_admin"]["deployed"], self.lcm_ns_tasks.get(nsr_id)))
1412                         except Exception as e:
1413                             print("nsr {} not found: {}".format(nsr_id, e))
1414                         sys.stdout.flush()
1415                         continue
1416                     elif command == "deleted":
1417                         continue  # TODO cleaning of task just in case should be done
1418                 elif topic == "vim_account":
1419                     vim_id = params["_id"]
1420                     if command == "create":
1421                         task = asyncio.ensure_future(self.vim_create(params, order_id))
1422                         if vim_id not in self.lcm_vim_tasks:
1423                             self.lcm_vim_tasks[vim_id] = {}
1424                         self.lcm_vim_tasks[vim_id][order_id] = {"vim_create": task}
1425                         continue
1426                     elif command == "delete":
1427                         self.cancel_tasks(topic, vim_id)
1428                         task = asyncio.ensure_future(self.vim_delete(vim_id, order_id))
1429                         if vim_id not in self.lcm_vim_tasks:
1430                             self.lcm_vim_tasks[vim_id] = {}
1431                         self.lcm_vim_tasks[vim_id][order_id] = {"vim_delete": task}
1432                         continue
1433                     elif command == "show":
1434                         print("not implemented show with vim_account")
1435                         sys.stdout.flush()
1436                         continue
1437                     elif command == "edit":
1438                         task = asyncio.ensure_future(self.vim_edit(params, order_id))
1439                         if vim_id not in self.lcm_vim_tasks:
1440                             self.lcm_vim_tasks[vim_id] = {}
1441                         self.lcm_vim_tasks[vim_id][order_id] = {"vim_edit": task}
1442                         continue
1443                 elif topic == "sdn":
1444                     _sdn_id = params["_id"]
1445                     if command == "create":
1446                         task = asyncio.ensure_future(self.sdn_create(params, order_id))
1447                         if _sdn_id not in self.lcm_sdn_tasks:
1448                             self.lcm_sdn_tasks[_sdn_id] = {}
1449                         self.lcm_sdn_tasks[_sdn_id][order_id] = {"sdn_create": task}
1450                         continue
1451                     elif command == "delete":
1452                         self.cancel_tasks(topic, _sdn_id)
1453                         task = asyncio.ensure_future(self.sdn_delete(_sdn_id, order_id))
1454                         if _sdn_id not in self.lcm_sdn_tasks:
1455                             self.lcm_sdn_tasks[_sdn_id] = {}
1456                         self.lcm_sdn_tasks[_sdn_id][order_id] = {"sdn_delete": task}
1457                         continue
1458                     elif command == "edit":
1459                         task = asyncio.ensure_future(self.sdn_edit(params, order_id))
1460                         if _sdn_id not in self.lcm_sdn_tasks:
1461                             self.lcm_sdn_tasks[_sdn_id] = {}
1462                         self.lcm_sdn_tasks[_sdn_id][order_id] = {"sdn_edit": task}
1463                         continue
1464                 self.logger.critical("unknown topic {} and command '{}'".format(topic, command))
1465             except Exception as e:
1466                 # if not first_start is the first time after starting. So leave more time and wait
1467                 # to allow kafka starts
1468                 if consecutive_errors == 8 if not first_start else 30:
1469                     self.logger.error("Task kafka_read task exit error too many errors. Exception: {}".format(e))
1470                     raise
1471                 consecutive_errors += 1
1472                 self.logger.error("Task kafka_read retrying after Exception {}".format(e))
1473                 wait_time = 2 if not first_start else 5
1474                 await asyncio.sleep(wait_time, loop=self.loop)
1475
1476         # self.logger.debug("Task kafka_read terminating")
1477         self.logger.debug("Task kafka_read exit")
1478
1479     def start(self):
1480         self.loop = asyncio.get_event_loop()
1481         self.loop.run_until_complete(asyncio.gather(
1482             self.kafka_read(),
1483             self.kafka_ping()
1484         ))
1485         # TODO
1486         # self.logger.debug("Terminating cancelling creation tasks")
1487         # self.cancel_tasks("ALL", "create")
1488         # timeout = 200
1489         # while self.is_pending_tasks():
1490         #     self.logger.debug("Task kafka_read terminating. Waiting for tasks termination")
1491         #     await asyncio.sleep(2, loop=self.loop)
1492         #     timeout -= 2
1493         #     if not timeout:
1494         #         self.cancel_tasks("ALL", "ALL")
1495         self.loop.close()
1496         self.loop = None
1497         if self.db:
1498             self.db.db_disconnect()
1499         if self.msg:
1500             self.msg.disconnect()
1501         if self.fs:
1502             self.fs.fs_disconnect()
1503
1504     def read_config_file(self, config_file):
1505         # TODO make a [ini] + yaml inside parser
1506         # the configparser library is not suitable, because it does not admit comments at the end of line,
1507         # and not parse integer or boolean
1508         try:
1509             with open(config_file) as f:
1510                 conf = yaml.load(f)
1511             for k, v in environ.items():
1512                 if not k.startswith("OSMLCM_"):
1513                     continue
1514                 k_items = k.lower().split("_")
1515                 c = conf
1516                 try:
1517                     for k_item in k_items[1:-1]:
1518                         if k_item in ("ro", "vca"):
1519                             # put in capital letter
1520                             k_item = k_item.upper()
1521                         c = c[k_item]
1522                     if k_items[-1] == "port":
1523                         c[k_items[-1]] = int(v)
1524                     else:
1525                         c[k_items[-1]] = v
1526                 except Exception as e:
1527                     self.logger.warn("skipping environ '{}' on exception '{}'".format(k, e))
1528
1529             return conf
1530         except Exception as e:
1531             self.logger.critical("At config file '{}': {}".format(config_file, e))
1532             exit(1)
1533
1534
1535 def usage():
1536     print("""Usage: {} [options]
1537         -c|--config [configuration_file]: loads the configuration file (default: ./nbi.cfg)
1538         -h|--help: shows this help
1539         """.format(sys.argv[0]))
1540     # --log-socket-host HOST: send logs to this host")
1541     # --log-socket-port PORT: send logs using this port (default: 9022)")
1542
1543
1544 if __name__ == '__main__':
1545     try:
1546         # load parameters and configuration
1547         opts, args = getopt.getopt(sys.argv[1:], "hc:", ["config=", "help"])
1548         # TODO add  "log-socket-host=", "log-socket-port=", "log-file="
1549         config_file = None
1550         for o, a in opts:
1551             if o in ("-h", "--help"):
1552                 usage()
1553                 sys.exit()
1554             elif o in ("-c", "--config"):
1555                 config_file = a
1556             # elif o == "--log-socket-port":
1557             #     log_socket_port = a
1558             # elif o == "--log-socket-host":
1559             #     log_socket_host = a
1560             # elif o == "--log-file":
1561             #     log_file = a
1562             else:
1563                 assert False, "Unhandled option"
1564         if config_file:
1565             if not path.isfile(config_file):
1566                 print("configuration file '{}' that not exist".format(config_file), file=sys.stderr)
1567                 exit(1)
1568         else:
1569             for config_file in (__file__[:__file__.rfind(".")] + ".cfg", "./lcm.cfg", "/etc/osm/lcm.cfg"):
1570                 if path.isfile(config_file):
1571                     break
1572             else:
1573                 print("No configuration file 'nbi.cfg' found neither at local folder nor at /etc/osm/", file=sys.stderr)
1574                 exit(1)
1575         lcm = Lcm(config_file)
1576         lcm.start()
1577     except getopt.GetoptError as e:
1578         print(str(e), file=sys.stderr)
1579         # usage()
1580         exit(1)