osm_lcm/lcm.py

   1 #!/usr/bin/python3
   2 # -*- coding: utf-8 -*-
   3
   4 ##
   5 # Copyright 2018 Telefonica S.A.
   6 #
   7 # Licensed under the Apache License, Version 2.0 (the "License"); you may
   8 # not use this file except in compliance with the License. You may obtain
   9 # a copy of the License at
  10 #
  11 #         http://www.apache.org/licenses/LICENSE-2.0
  12 #
  13 # Unless required by applicable law or agreed to in writing, software
  14 # distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
  15 # WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
  16 # License for the specific language governing permissions and limitations
  17 # under the License.
  18 ##
  19
  20
  21 # DEBUG WITH PDB
  22 import os
  23 import pdb
  24
  25 import asyncio
  26 import yaml
  27 import logging
  28 import logging.handlers
  29 import getopt
  30 import sys
  31
  32 from osm_lcm import ns, vim_sdn, netslice
  33 from osm_lcm.ng_ro import NgRoException, NgRoClient
  34 from osm_lcm.ROclient import ROClient, ROClientException
  35
  36 from time import time
  37 from osm_lcm.lcm_utils import versiontuple, LcmException, TaskRegistry, LcmExceptionExit
  38 from osm_lcm import version as lcm_version, version_date as lcm_version_date
  39
  40 from osm_common import msglocal, msgkafka
  41 from osm_common import version as common_version
  42 from osm_common.dbbase import DbException
  43 from osm_common.fsbase import FsException
  44 from osm_common.msgbase import MsgException
  45 from osm_lcm.data_utils.database.database import Database
  46 from osm_lcm.data_utils.filesystem.filesystem import Filesystem
  47 from os import environ, path
  48 from random import choice as random_choice
  49 from n2vc import version as n2vc_version
  50 import traceback
  51
  52 if os.getenv("OSMLCM_PDB_DEBUG", None) is not None:
  53     pdb.set_trace()
  54
  55
  56 __author__ = "Alfonso Tierno"
  57 min_RO_version = "6.0.2"
  58 min_n2vc_version = "0.0.2"
  59
  60 min_common_version = "0.1.19"
  61 health_check_file = (
  62     path.expanduser("~") + "/time_last_ping"
  63 )  # TODO find better location for this file
  64
  65
  66 class Lcm:
  67
  68     ping_interval_pace = (
  69         120  # how many time ping is send once is confirmed all is running
  70     )
  71     ping_interval_boot = 5  # how many time ping is sent when booting
  72     cfg_logger_name = {
  73         "message": "lcm.msg",
  74         "database": "lcm.db",
  75         "storage": "lcm.fs",
  76         "tsdb": "lcm.prometheus",
  77     }
  78     # ^ contains for each section at lcm.cfg the used logger name
  79
  80     def __init__(self, config_file, loop=None):
  81         """
  82         Init, Connect to database, filesystem storage, and messaging
  83         :param config: two level dictionary with configuration. Top level should contain 'database', 'storage',
  84         :return: None
  85         """
  86         self.db = None
  87         self.msg = None
  88         self.msg_admin = None
  89         self.fs = None
  90         self.pings_not_received = 1
  91         self.consecutive_errors = 0
  92         self.first_start = False
  93
  94         # logging
  95         self.logger = logging.getLogger("lcm")
  96         # get id
  97         self.worker_id = self.get_process_id()
  98         # load configuration
  99         config = self.read_config_file(config_file)
 100         self.config = config
 101         self.config["ro_config"] = {
 102             "ng": config["RO"].get("ng", False),
 103             "uri": config["RO"].get("uri"),
 104             "tenant": config.get("tenant", "osm"),
 105             "logger_name": "lcm.roclient",
 106             "loglevel": config["RO"].get("loglevel", "ERROR"),
 107         }
 108         if not self.config["ro_config"]["uri"]:
 109             self.config["ro_config"]["uri"] = "http://{}:{}/".format(
 110                 config["RO"]["host"], config["RO"]["port"]
 111             )
 112         elif (
 113             "/ro" in self.config["ro_config"]["uri"][-4:]
 114             or "/openmano" in self.config["ro_config"]["uri"][-10:]
 115         ):
 116             # uri ends with '/ro', '/ro/', '/openmano', '/openmano/'
 117             index = self.config["ro_config"]["uri"][-1].rfind("/")
 118             self.config["ro_config"]["uri"] = self.config["ro_config"]["uri"][index + 1]
 119
 120         self.loop = loop or asyncio.get_event_loop()
 121         self.ns = (
 122             self.netslice
 123         ) = (
 124             self.vim
 125         ) = self.wim = self.sdn = self.k8scluster = self.vca = self.k8srepo = None
 126
 127         # logging
 128         log_format_simple = (
 129             "%(asctime)s %(levelname)s %(name)s %(filename)s:%(lineno)s %(message)s"
 130         )
 131         log_formatter_simple = logging.Formatter(
 132             log_format_simple, datefmt="%Y-%m-%dT%H:%M:%S"
 133         )
 134         config["database"]["logger_name"] = "lcm.db"
 135         config["storage"]["logger_name"] = "lcm.fs"
 136         config["message"]["logger_name"] = "lcm.msg"
 137         if config["global"].get("logfile"):
 138             file_handler = logging.handlers.RotatingFileHandler(
 139                 config["global"]["logfile"], maxBytes=100e6, backupCount=9, delay=0
 140             )
 141             file_handler.setFormatter(log_formatter_simple)
 142             self.logger.addHandler(file_handler)
 143         if not config["global"].get("nologging"):
 144             str_handler = logging.StreamHandler()
 145             str_handler.setFormatter(log_formatter_simple)
 146             self.logger.addHandler(str_handler)
 147
 148         if config["global"].get("loglevel"):
 149             self.logger.setLevel(config["global"]["loglevel"])
 150
 151         # logging other modules
 152         for k1, logname in self.cfg_logger_name.items():
 153             config[k1]["logger_name"] = logname
 154             logger_module = logging.getLogger(logname)
 155             if config[k1].get("logfile"):
 156                 file_handler = logging.handlers.RotatingFileHandler(
 157                     config[k1]["logfile"], maxBytes=100e6, backupCount=9, delay=0
 158                 )
 159                 file_handler.setFormatter(log_formatter_simple)
 160                 logger_module.addHandler(file_handler)
 161             if config[k1].get("loglevel"):
 162                 logger_module.setLevel(config[k1]["loglevel"])
 163         self.logger.critical(
 164             "starting osm/lcm version {} {}".format(lcm_version, lcm_version_date)
 165         )
 166
 167         # check version of N2VC
 168         # TODO enhance with int conversion or from distutils.version import LooseVersion
 169         # or with list(map(int, version.split(".")))
 170         if versiontuple(n2vc_version) < versiontuple(min_n2vc_version):
 171             raise LcmException(
 172                 "Not compatible osm/N2VC version '{}'. Needed '{}' or higher".format(
 173                     n2vc_version, min_n2vc_version
 174                 )
 175             )
 176         # check version of common
 177         if versiontuple(common_version) < versiontuple(min_common_version):
 178             raise LcmException(
 179                 "Not compatible osm/common version '{}'. Needed '{}' or higher".format(
 180                     common_version, min_common_version
 181                 )
 182             )
 183
 184         try:
 185             self.db = Database(config).instance.db
 186
 187             self.fs = Filesystem(config).instance.fs
 188             self.fs.sync()
 189
 190             # copy message configuration in order to remove 'group_id' for msg_admin
 191             config_message = config["message"].copy()
 192             config_message["loop"] = self.loop
 193             if config_message["driver"] == "local":
 194                 self.msg = msglocal.MsgLocal()
 195                 self.msg.connect(config_message)
 196                 self.msg_admin = msglocal.MsgLocal()
 197                 config_message.pop("group_id", None)
 198                 self.msg_admin.connect(config_message)
 199             elif config_message["driver"] == "kafka":
 200                 self.msg = msgkafka.MsgKafka()
 201                 self.msg.connect(config_message)
 202                 self.msg_admin = msgkafka.MsgKafka()
 203                 config_message.pop("group_id", None)
 204                 self.msg_admin.connect(config_message)
 205             else:
 206                 raise LcmException(
 207                     "Invalid configuration param '{}' at '[message]':'driver'".format(
 208                         config["message"]["driver"]
 209                     )
 210                 )
 211         except (DbException, FsException, MsgException) as e:
 212             self.logger.critical(str(e), exc_info=True)
 213             raise LcmException(str(e))
 214
 215         # contains created tasks/futures to be able to cancel
 216         self.lcm_tasks = TaskRegistry(self.worker_id, self.logger)
 217
 218     async def check_RO_version(self):
 219         tries = 14
 220         last_error = None
 221         while True:
 222             ro_uri = self.config["ro_config"]["uri"]
 223             try:
 224                 # try new  RO, if fail old RO
 225                 try:
 226                     self.config["ro_config"]["uri"] = ro_uri + "ro"
 227                     ro_server = NgRoClient(self.loop, **self.config["ro_config"])
 228                     ro_version = await ro_server.get_version()
 229                     self.config["ro_config"]["ng"] = True
 230                 except Exception:
 231                     self.config["ro_config"]["uri"] = ro_uri + "openmano"
 232                     ro_server = ROClient(self.loop, **self.config["ro_config"])
 233                     ro_version = await ro_server.get_version()
 234                     self.config["ro_config"]["ng"] = False
 235                 if versiontuple(ro_version) < versiontuple(min_RO_version):
 236                     raise LcmException(
 237                         "Not compatible osm/RO version '{}'. Needed '{}' or higher".format(
 238                             ro_version, min_RO_version
 239                         )
 240                     )
 241                 self.logger.info(
 242                     "Connected to RO version {} new-generation version {}".format(
 243                         ro_version, self.config["ro_config"]["ng"]
 244                     )
 245                 )
 246                 return
 247             except (ROClientException, NgRoException) as e:
 248                 self.config["ro_config"]["uri"] = ro_uri
 249                 tries -= 1
 250                 traceback.print_tb(e.__traceback__)
 251                 error_text = "Error while connecting to RO on {}: {}".format(
 252                     self.config["ro_config"]["uri"], e
 253                 )
 254                 if tries <= 0:
 255                     self.logger.critical(error_text)
 256                     raise LcmException(error_text)
 257                 if last_error != error_text:
 258                     last_error = error_text
 259                     self.logger.error(
 260                         error_text + ". Waiting until {} seconds".format(5 * tries)
 261                     )
 262                 await asyncio.sleep(5)
 263
 264     async def test(self, param=None):
 265         self.logger.debug("Starting/Ending test task: {}".format(param))
 266
 267     async def kafka_ping(self):
 268         self.logger.debug("Task kafka_ping Enter")
 269         consecutive_errors = 0
 270         first_start = True
 271         kafka_has_received = False
 272         self.pings_not_received = 1
 273         while True:
 274             try:
 275                 await self.msg_admin.aiowrite(
 276                     "admin",
 277                     "ping",
 278                     {
 279                         "from": "lcm",
 280                         "to": "lcm",
 281                         "worker_id": self.worker_id,
 282                         "version": lcm_version,
 283                     },
 284                     self.loop,
 285                 )
 286                 # time between pings are low when it is not received and at starting
 287                 wait_time = (
 288                     self.ping_interval_boot
 289                     if not kafka_has_received
 290                     else self.ping_interval_pace
 291                 )
 292                 if not self.pings_not_received:
 293                     kafka_has_received = True
 294                 self.pings_not_received += 1
 295                 await asyncio.sleep(wait_time, loop=self.loop)
 296                 if self.pings_not_received > 10:
 297                     raise LcmException("It is not receiving pings from Kafka bus")
 298                 consecutive_errors = 0
 299                 first_start = False
 300             except LcmException:
 301                 raise
 302             except Exception as e:
 303                 # if not first_start is the first time after starting. So leave more time and wait
 304                 # to allow kafka starts
 305                 if consecutive_errors == 8 if not first_start else 30:
 306                     self.logger.error(
 307                         "Task kafka_read task exit error too many errors. Exception: {}".format(
 308                             e
 309                         )
 310                     )
 311                     raise
 312                 consecutive_errors += 1
 313                 self.logger.error(
 314                     "Task kafka_read retrying after Exception {}".format(e)
 315                 )
 316                 wait_time = 2 if not first_start else 5
 317                 await asyncio.sleep(wait_time, loop=self.loop)
 318
 319     def kafka_read_callback(self, topic, command, params):
 320         order_id = 1
 321
 322         if topic != "admin" and command != "ping":
 323             self.logger.debug(
 324                 "Task kafka_read receives {} {}: {}".format(topic, command, params)
 325             )
 326         self.consecutive_errors = 0
 327         self.first_start = False
 328         order_id += 1
 329         if command == "exit":
 330             raise LcmExceptionExit
 331         elif command.startswith("#"):
 332             return
 333         elif command == "echo":
 334             # just for test
 335             print(params)
 336             sys.stdout.flush()
 337             return
 338         elif command == "test":
 339             asyncio.Task(self.test(params), loop=self.loop)
 340             return
 341
 342         if topic == "admin":
 343             if command == "ping" and params["to"] == "lcm" and params["from"] == "lcm":
 344                 if params.get("worker_id") != self.worker_id:
 345                     return
 346                 self.pings_not_received = 0
 347                 try:
 348                     with open(health_check_file, "w") as f:
 349                         f.write(str(time()))
 350                 except Exception as e:
 351                     self.logger.error(
 352                         "Cannot write into '{}' for healthcheck: {}".format(
 353                             health_check_file, e
 354                         )
 355                     )
 356             return
 357         elif topic == "pla":
 358             if command == "placement":
 359                 self.ns.update_nsrs_with_pla_result(params)
 360             return
 361         elif topic == "k8scluster":
 362             if command == "create" or command == "created":
 363                 k8scluster_id = params.get("_id")
 364                 task = asyncio.ensure_future(self.k8scluster.create(params, order_id))
 365                 self.lcm_tasks.register(
 366                     "k8scluster", k8scluster_id, order_id, "k8scluster_create", task
 367                 )
 368                 return
 369             elif command == "delete" or command == "deleted":
 370                 k8scluster_id = params.get("_id")
 371                 task = asyncio.ensure_future(self.k8scluster.delete(params, order_id))
 372                 self.lcm_tasks.register(
 373                     "k8scluster", k8scluster_id, order_id, "k8scluster_delete", task
 374                 )
 375                 return
 376         elif topic == "vca":
 377             if command == "create" or command == "created":
 378                 vca_id = params.get("_id")
 379                 task = asyncio.ensure_future(self.vca.create(params, order_id))
 380                 self.lcm_tasks.register("vca", vca_id, order_id, "vca_create", task)
 381                 return
 382             elif command == "delete" or command == "deleted":
 383                 vca_id = params.get("_id")
 384                 task = asyncio.ensure_future(self.vca.delete(params, order_id))
 385                 self.lcm_tasks.register("vca", vca_id, order_id, "vca_delete", task)
 386                 return
 387         elif topic == "k8srepo":
 388             if command == "create" or command == "created":
 389                 k8srepo_id = params.get("_id")
 390                 self.logger.debug("k8srepo_id = {}".format(k8srepo_id))
 391                 task = asyncio.ensure_future(self.k8srepo.create(params, order_id))
 392                 self.lcm_tasks.register(
 393                     "k8srepo", k8srepo_id, order_id, "k8srepo_create", task
 394                 )
 395                 return
 396             elif command == "delete" or command == "deleted":
 397                 k8srepo_id = params.get("_id")
 398                 task = asyncio.ensure_future(self.k8srepo.delete(params, order_id))
 399                 self.lcm_tasks.register(
 400                     "k8srepo", k8srepo_id, order_id, "k8srepo_delete", task
 401                 )
 402                 return
 403         elif topic == "ns":
 404             if command == "instantiate":
 405                 # self.logger.debug("Deploying NS {}".format(nsr_id))
 406                 nslcmop = params
 407                 nslcmop_id = nslcmop["_id"]
 408                 nsr_id = nslcmop["nsInstanceId"]
 409                 task = asyncio.ensure_future(self.ns.instantiate(nsr_id, nslcmop_id))
 410                 self.lcm_tasks.register(
 411                     "ns", nsr_id, nslcmop_id, "ns_instantiate", task
 412                 )
 413                 return
 414             elif command == "terminate":
 415                 # self.logger.debug("Deleting NS {}".format(nsr_id))
 416                 nslcmop = params
 417                 nslcmop_id = nslcmop["_id"]
 418                 nsr_id = nslcmop["nsInstanceId"]
 419                 self.lcm_tasks.cancel(topic, nsr_id)
 420                 task = asyncio.ensure_future(self.ns.terminate(nsr_id, nslcmop_id))
 421                 self.lcm_tasks.register("ns", nsr_id, nslcmop_id, "ns_terminate", task)
 422                 return
 423             elif command == "vca_status_refresh":
 424                 nslcmop = params
 425                 nslcmop_id = nslcmop["_id"]
 426                 nsr_id = nslcmop["nsInstanceId"]
 427                 task = asyncio.ensure_future(
 428                     self.ns.vca_status_refresh(nsr_id, nslcmop_id)
 429                 )
 430                 self.lcm_tasks.register(
 431                     "ns", nsr_id, nslcmop_id, "ns_vca_status_refresh", task
 432                 )
 433                 return
 434             elif command == "action":
 435                 # self.logger.debug("Update NS {}".format(nsr_id))
 436                 nslcmop = params
 437                 nslcmop_id = nslcmop["_id"]
 438                 nsr_id = nslcmop["nsInstanceId"]
 439                 task = asyncio.ensure_future(self.ns.action(nsr_id, nslcmop_id))
 440                 self.lcm_tasks.register("ns", nsr_id, nslcmop_id, "ns_action", task)
 441                 return
 442             elif command == "update":
 443                 # self.logger.debug("Update NS {}".format(nsr_id))
 444                 nslcmop = params
 445                 nslcmop_id = nslcmop["_id"]
 446                 nsr_id = nslcmop["nsInstanceId"]
 447                 task = asyncio.ensure_future(self.ns.update(nsr_id, nslcmop_id))
 448                 self.lcm_tasks.register("ns", nsr_id, nslcmop_id, "ns_update", task)
 449                 return
 450             elif command == "scale":
 451                 # self.logger.debug("Update NS {}".format(nsr_id))
 452                 nslcmop = params
 453                 nslcmop_id = nslcmop["_id"]
 454                 nsr_id = nslcmop["nsInstanceId"]
 455                 task = asyncio.ensure_future(self.ns.scale(nsr_id, nslcmop_id))
 456                 self.lcm_tasks.register("ns", nsr_id, nslcmop_id, "ns_scale", task)
 457                 return
 458             elif command == "migrate":
 459                 nslcmop = params
 460                 nslcmop_id = nslcmop["_id"]
 461                 nsr_id = nslcmop["nsInstanceId"]
 462                 task = asyncio.ensure_future(self.ns.migrate(nsr_id, nslcmop_id))
 463                 self.lcm_tasks.register("ns", nsr_id, nslcmop_id, "ns_migrate", task)
 464                 return
 465             elif command == "show":
 466                 nsr_id = params
 467                 try:
 468                     db_nsr = self.db.get_one("nsrs", {"_id": nsr_id})
 469                     print(
 470                         "nsr:\n    _id={}\n    operational-status: {}\n    config-status: {}"
 471                         "\n    detailed-status: {}\n    deploy: {}\n    tasks: {}"
 472                         "".format(
 473                             nsr_id,
 474                             db_nsr["operational-status"],
 475                             db_nsr["config-status"],
 476                             db_nsr["detailed-status"],
 477                             db_nsr["_admin"]["deployed"],
 478                             self.lcm_ns_tasks.get(nsr_id),
 479                         )
 480                     )
 481                 except Exception as e:
 482                     print("nsr {} not found: {}".format(nsr_id, e))
 483                 sys.stdout.flush()
 484                 return
 485             elif command == "deleted":
 486                 return  # TODO cleaning of task just in case should be done
 487             elif command in (
 488                 "terminated",
 489                 "instantiated",
 490                 "scaled",
 491                 "actioned",
 492                 "updated",
 493                 "migrated",
 494             ):  # "scaled-cooldown-time"
 495                 return
 496         elif topic == "nsi":  # netslice LCM processes (instantiate, terminate, etc)
 497             if command == "instantiate":
 498                 # self.logger.debug("Instantiating Network Slice {}".format(nsilcmop["netsliceInstanceId"]))
 499                 nsilcmop = params
 500                 nsilcmop_id = nsilcmop["_id"]  # slice operation id
 501                 nsir_id = nsilcmop["netsliceInstanceId"]  # slice record id
 502                 task = asyncio.ensure_future(
 503                     self.netslice.instantiate(nsir_id, nsilcmop_id)
 504                 )
 505                 self.lcm_tasks.register(
 506                     "nsi", nsir_id, nsilcmop_id, "nsi_instantiate", task
 507                 )
 508                 return
 509             elif command == "terminate":
 510                 # self.logger.debug("Terminating Network Slice NS {}".format(nsilcmop["netsliceInstanceId"]))
 511                 nsilcmop = params
 512                 nsilcmop_id = nsilcmop["_id"]  # slice operation id
 513                 nsir_id = nsilcmop["netsliceInstanceId"]  # slice record id
 514                 self.lcm_tasks.cancel(topic, nsir_id)
 515                 task = asyncio.ensure_future(
 516                     self.netslice.terminate(nsir_id, nsilcmop_id)
 517                 )
 518                 self.lcm_tasks.register(
 519                     "nsi", nsir_id, nsilcmop_id, "nsi_terminate", task
 520                 )
 521                 return
 522             elif command == "show":
 523                 nsir_id = params
 524                 try:
 525                     db_nsir = self.db.get_one("nsirs", {"_id": nsir_id})
 526                     print(
 527                         "nsir:\n    _id={}\n    operational-status: {}\n    config-status: {}"
 528                         "\n    detailed-status: {}\n    deploy: {}\n    tasks: {}"
 529                         "".format(
 530                             nsir_id,
 531                             db_nsir["operational-status"],
 532                             db_nsir["config-status"],
 533                             db_nsir["detailed-status"],
 534                             db_nsir["_admin"]["deployed"],
 535                             self.lcm_netslice_tasks.get(nsir_id),
 536                         )
 537                     )
 538                 except Exception as e:
 539                     print("nsir {} not found: {}".format(nsir_id, e))
 540                 sys.stdout.flush()
 541                 return
 542             elif command == "deleted":
 543                 return  # TODO cleaning of task just in case should be done
 544             elif command in (
 545                 "terminated",
 546                 "instantiated",
 547                 "scaled",
 548                 "actioned",
 549             ):  # "scaled-cooldown-time"
 550                 return
 551         elif topic == "vim_account":
 552             vim_id = params["_id"]
 553             if command in ("create", "created"):
 554                 if not self.config["ro_config"].get("ng"):
 555                     task = asyncio.ensure_future(self.vim.create(params, order_id))
 556                     self.lcm_tasks.register(
 557                         "vim_account", vim_id, order_id, "vim_create", task
 558                     )
 559                 return
 560             elif command == "delete" or command == "deleted":
 561                 self.lcm_tasks.cancel(topic, vim_id)
 562                 task = asyncio.ensure_future(self.vim.delete(params, order_id))
 563                 self.lcm_tasks.register(
 564                     "vim_account", vim_id, order_id, "vim_delete", task
 565                 )
 566                 return
 567             elif command == "show":
 568                 print("not implemented show with vim_account")
 569                 sys.stdout.flush()
 570                 return
 571             elif command in ("edit", "edited"):
 572                 if not self.config["ro_config"].get("ng"):
 573                     task = asyncio.ensure_future(self.vim.edit(params, order_id))
 574                     self.lcm_tasks.register(
 575                         "vim_account", vim_id, order_id, "vim_edit", task
 576                     )
 577                 return
 578             elif command == "deleted":
 579                 return  # TODO cleaning of task just in case should be done
 580         elif topic == "wim_account":
 581             wim_id = params["_id"]
 582             if command in ("create", "created"):
 583                 if not self.config["ro_config"].get("ng"):
 584                     task = asyncio.ensure_future(self.wim.create(params, order_id))
 585                     self.lcm_tasks.register(
 586                         "wim_account", wim_id, order_id, "wim_create", task
 587                     )
 588                 return
 589             elif command == "delete" or command == "deleted":
 590                 self.lcm_tasks.cancel(topic, wim_id)
 591                 task = asyncio.ensure_future(self.wim.delete(params, order_id))
 592                 self.lcm_tasks.register(
 593                     "wim_account", wim_id, order_id, "wim_delete", task
 594                 )
 595                 return
 596             elif command == "show":
 597                 print("not implemented show with wim_account")
 598                 sys.stdout.flush()
 599                 return
 600             elif command in ("edit", "edited"):
 601                 task = asyncio.ensure_future(self.wim.edit(params, order_id))
 602                 self.lcm_tasks.register(
 603                     "wim_account", wim_id, order_id, "wim_edit", task
 604                 )
 605                 return
 606             elif command == "deleted":
 607                 return  # TODO cleaning of task just in case should be done
 608         elif topic == "sdn":
 609             _sdn_id = params["_id"]
 610             if command in ("create", "created"):
 611                 if not self.config["ro_config"].get("ng"):
 612                     task = asyncio.ensure_future(self.sdn.create(params, order_id))
 613                     self.lcm_tasks.register(
 614                         "sdn", _sdn_id, order_id, "sdn_create", task
 615                     )
 616                 return
 617             elif command == "delete" or command == "deleted":
 618                 self.lcm_tasks.cancel(topic, _sdn_id)
 619                 task = asyncio.ensure_future(self.sdn.delete(params, order_id))
 620                 self.lcm_tasks.register("sdn", _sdn_id, order_id, "sdn_delete", task)
 621                 return
 622             elif command in ("edit", "edited"):
 623                 task = asyncio.ensure_future(self.sdn.edit(params, order_id))
 624                 self.lcm_tasks.register("sdn", _sdn_id, order_id, "sdn_edit", task)
 625                 return
 626             elif command == "deleted":
 627                 return  # TODO cleaning of task just in case should be done
 628         self.logger.critical("unknown topic {} and command '{}'".format(topic, command))
 629
 630     async def kafka_read(self):
 631         self.logger.debug(
 632             "Task kafka_read Enter with worker_id={}".format(self.worker_id)
 633         )
 634         # future = asyncio.Future()
 635         self.consecutive_errors = 0
 636         self.first_start = True
 637         while self.consecutive_errors < 10:
 638             try:
 639                 topics = (
 640                     "ns",
 641                     "vim_account",
 642                     "wim_account",
 643                     "sdn",
 644                     "nsi",
 645                     "k8scluster",
 646                     "vca",
 647                     "k8srepo",
 648                     "pla",
 649                 )
 650                 topics_admin = ("admin",)
 651                 await asyncio.gather(
 652                     self.msg.aioread(
 653                         topics, self.loop, self.kafka_read_callback, from_beginning=True
 654                     ),
 655                     self.msg_admin.aioread(
 656                         topics_admin,
 657                         self.loop,
 658                         self.kafka_read_callback,
 659                         group_id=False,
 660                     ),
 661                 )
 662
 663             except LcmExceptionExit:
 664                 self.logger.debug("Bye!")
 665                 break
 666             except Exception as e:
 667                 # if not first_start is the first time after starting. So leave more time and wait
 668                 # to allow kafka starts
 669                 if self.consecutive_errors == 8 if not self.first_start else 30:
 670                     self.logger.error(
 671                         "Task kafka_read task exit error too many errors. Exception: {}".format(
 672                             e
 673                         )
 674                     )
 675                     raise
 676                 self.consecutive_errors += 1
 677                 self.logger.error(
 678                     "Task kafka_read retrying after Exception {}".format(e)
 679                 )
 680                 wait_time = 2 if not self.first_start else 5
 681                 await asyncio.sleep(wait_time, loop=self.loop)
 682
 683         # self.logger.debug("Task kafka_read terminating")
 684         self.logger.debug("Task kafka_read exit")
 685
 686     def start(self):
 687
 688         # check RO version
 689         self.loop.run_until_complete(self.check_RO_version())
 690
 691         self.ns = ns.NsLcm(self.msg, self.lcm_tasks, self.config, self.loop)
 692         self.netslice = netslice.NetsliceLcm(
 693             self.msg, self.lcm_tasks, self.config, self.loop, self.ns
 694         )
 695         self.vim = vim_sdn.VimLcm(self.msg, self.lcm_tasks, self.config, self.loop)
 696         self.wim = vim_sdn.WimLcm(self.msg, self.lcm_tasks, self.config, self.loop)
 697         self.sdn = vim_sdn.SdnLcm(self.msg, self.lcm_tasks, self.config, self.loop)
 698         self.k8scluster = vim_sdn.K8sClusterLcm(
 699             self.msg, self.lcm_tasks, self.config, self.loop
 700         )
 701         self.vca = vim_sdn.VcaLcm(self.msg, self.lcm_tasks, self.config, self.loop)
 702         self.k8srepo = vim_sdn.K8sRepoLcm(
 703             self.msg, self.lcm_tasks, self.config, self.loop
 704         )
 705
 706         self.loop.run_until_complete(
 707             asyncio.gather(self.kafka_read(), self.kafka_ping())
 708         )
 709
 710         # TODO
 711         # self.logger.debug("Terminating cancelling creation tasks")
 712         # self.lcm_tasks.cancel("ALL", "create")
 713         # timeout = 200
 714         # while self.is_pending_tasks():
 715         #     self.logger.debug("Task kafka_read terminating. Waiting for tasks termination")
 716         #     await asyncio.sleep(2, loop=self.loop)
 717         #     timeout -= 2
 718         #     if not timeout:
 719         #         self.lcm_tasks.cancel("ALL", "ALL")
 720         self.loop.close()
 721         self.loop = None
 722         if self.db:
 723             self.db.db_disconnect()
 724         if self.msg:
 725             self.msg.disconnect()
 726         if self.msg_admin:
 727             self.msg_admin.disconnect()
 728         if self.fs:
 729             self.fs.fs_disconnect()
 730
 731     def read_config_file(self, config_file):
 732         # TODO make a [ini] + yaml inside parser
 733         # the configparser library is not suitable, because it does not admit comments at the end of line,
 734         # and not parse integer or boolean
 735         try:
 736             # read file as yaml format
 737             with open(config_file) as f:
 738                 conf = yaml.load(f, Loader=yaml.Loader)
 739             # Ensure all sections are not empty
 740             for k in (
 741                 "global",
 742                 "timeout",
 743                 "RO",
 744                 "VCA",
 745                 "database",
 746                 "storage",
 747                 "message",
 748             ):
 749                 if not conf.get(k):
 750                     conf[k] = {}
 751
 752             # read all environ that starts with OSMLCM_
 753             for k, v in environ.items():
 754                 if not k.startswith("OSMLCM_"):
 755                     continue
 756                 subject, _, item = k[7:].lower().partition("_")
 757                 if not item:
 758                     continue
 759                 if subject in ("ro", "vca"):
 760                     # put in capital letter
 761                     subject = subject.upper()
 762                 try:
 763                     if item == "port" or subject == "timeout":
 764                         conf[subject][item] = int(v)
 765                     else:
 766                         conf[subject][item] = v
 767                 except Exception as e:
 768                     self.logger.warning(
 769                         "skipping environ '{}' on exception '{}'".format(k, e)
 770                     )
 771
 772             # backward compatibility of VCA parameters
 773
 774             if "pubkey" in conf["VCA"]:
 775                 conf["VCA"]["public_key"] = conf["VCA"].pop("pubkey")
 776             if "cacert" in conf["VCA"]:
 777                 conf["VCA"]["ca_cert"] = conf["VCA"].pop("cacert")
 778             if "apiproxy" in conf["VCA"]:
 779                 conf["VCA"]["api_proxy"] = conf["VCA"].pop("apiproxy")
 780
 781             if "enableosupgrade" in conf["VCA"]:
 782                 conf["VCA"]["enable_os_upgrade"] = conf["VCA"].pop("enableosupgrade")
 783             if isinstance(conf["VCA"].get("enable_os_upgrade"), str):
 784                 if conf["VCA"]["enable_os_upgrade"].lower() == "false":
 785                     conf["VCA"]["enable_os_upgrade"] = False
 786                 elif conf["VCA"]["enable_os_upgrade"].lower() == "true":
 787                     conf["VCA"]["enable_os_upgrade"] = True
 788
 789             if "aptmirror" in conf["VCA"]:
 790                 conf["VCA"]["apt_mirror"] = conf["VCA"].pop("aptmirror")
 791
 792             return conf
 793         except Exception as e:
 794             self.logger.critical("At config file '{}': {}".format(config_file, e))
 795             exit(1)
 796
 797     @staticmethod
 798     def get_process_id():
 799         """
 800         Obtain a unique ID for this process. If running from inside docker, it will get docker ID. If not it
 801         will provide a random one
 802         :return: Obtained ID
 803         """
 804         # Try getting docker id. If fails, get pid
 805         try:
 806             with open("/proc/self/cgroup", "r") as f:
 807                 text_id_ = f.readline()
 808                 _, _, text_id = text_id_.rpartition("/")
 809                 text_id = text_id.replace("\n", "")[:12]
 810                 if text_id:
 811                     return text_id
 812         except Exception:
 813             pass
 814         # Return a random id
 815         return "".join(random_choice("0123456789abcdef") for _ in range(12))
 816
 817
 818 def usage():
 819     print(
 820         """Usage: {} [options]
 821         -c|--config [configuration_file]: loads the configuration file (default: ./lcm.cfg)
 822         --health-check: do not run lcm, but inspect kafka bus to determine if lcm is healthy
 823         -h|--help: shows this help
 824         """.format(
 825             sys.argv[0]
 826         )
 827     )
 828     # --log-socket-host HOST: send logs to this host")
 829     # --log-socket-port PORT: send logs using this port (default: 9022)")
 830
 831
 832 if __name__ == "__main__":
 833
 834     try:
 835         # print("SYS.PATH='{}'".format(sys.path))
 836         # load parameters and configuration
 837         # -h
 838         # -c value
 839         # --config value
 840         # --help
 841         # --health-check
 842         opts, args = getopt.getopt(
 843             sys.argv[1:], "hc:", ["config=", "help", "health-check"]
 844         )
 845         # TODO add  "log-socket-host=", "log-socket-port=", "log-file="
 846         config_file = None
 847         for o, a in opts:
 848             if o in ("-h", "--help"):
 849                 usage()
 850                 sys.exit()
 851             elif o in ("-c", "--config"):
 852                 config_file = a
 853             elif o == "--health-check":
 854                 from osm_lcm.lcm_hc import health_check
 855
 856                 health_check(health_check_file, Lcm.ping_interval_pace)
 857             # elif o == "--log-socket-port":
 858             #     log_socket_port = a
 859             # elif o == "--log-socket-host":
 860             #     log_socket_host = a
 861             # elif o == "--log-file":
 862             #     log_file = a
 863             else:
 864                 assert False, "Unhandled option"
 865
 866         if config_file:
 867             if not path.isfile(config_file):
 868                 print(
 869                     "configuration file '{}' does not exist".format(config_file),
 870                     file=sys.stderr,
 871                 )
 872                 exit(1)
 873         else:
 874             for config_file in (
 875                 __file__[: __file__.rfind(".")] + ".cfg",
 876                 "./lcm.cfg",
 877                 "/etc/osm/lcm.cfg",
 878             ):
 879                 if path.isfile(config_file):
 880                     break
 881             else:
 882                 print(
 883                     "No configuration file 'lcm.cfg' found neither at local folder nor at /etc/osm/",
 884                     file=sys.stderr,
 885                 )
 886                 exit(1)
 887         lcm = Lcm(config_file)
 888         lcm.start()
 889     except (LcmException, getopt.GetoptError) as e:
 890         print(str(e), file=sys.stderr)
 891         # usage()
 892         exit(1)