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 == "scale":
 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.scale(nsr_id, nslcmop_id))
 448                 self.lcm_tasks.register("ns", nsr_id, nslcmop_id, "ns_scale", task)
 449                 return
 450             elif command == "show":
 451                 nsr_id = params
 452                 try:
 453                     db_nsr = self.db.get_one("nsrs", {"_id": nsr_id})
 454                     print(
 455                         "nsr:\n    _id={}\n    operational-status: {}\n    config-status: {}"
 456                         "\n    detailed-status: {}\n    deploy: {}\n    tasks: {}"
 457                         "".format(
 458                             nsr_id,
 459                             db_nsr["operational-status"],
 460                             db_nsr["config-status"],
 461                             db_nsr["detailed-status"],
 462                             db_nsr["_admin"]["deployed"],
 463                             self.lcm_ns_tasks.get(nsr_id),
 464                         )
 465                     )
 466                 except Exception as e:
 467                     print("nsr {} not found: {}".format(nsr_id, e))
 468                 sys.stdout.flush()
 469                 return
 470             elif command == "deleted":
 471                 return  # TODO cleaning of task just in case should be done
 472             elif command in (
 473                 "terminated",
 474                 "instantiated",
 475                 "scaled",
 476                 "actioned",
 477             ):  # "scaled-cooldown-time"
 478                 return
 479         elif topic == "nsi":  # netslice LCM processes (instantiate, terminate, etc)
 480             if command == "instantiate":
 481                 # self.logger.debug("Instantiating Network Slice {}".format(nsilcmop["netsliceInstanceId"]))
 482                 nsilcmop = params
 483                 nsilcmop_id = nsilcmop["_id"]  # slice operation id
 484                 nsir_id = nsilcmop["netsliceInstanceId"]  # slice record id
 485                 task = asyncio.ensure_future(
 486                     self.netslice.instantiate(nsir_id, nsilcmop_id)
 487                 )
 488                 self.lcm_tasks.register(
 489                     "nsi", nsir_id, nsilcmop_id, "nsi_instantiate", task
 490                 )
 491                 return
 492             elif command == "terminate":
 493                 # self.logger.debug("Terminating Network Slice NS {}".format(nsilcmop["netsliceInstanceId"]))
 494                 nsilcmop = params
 495                 nsilcmop_id = nsilcmop["_id"]  # slice operation id
 496                 nsir_id = nsilcmop["netsliceInstanceId"]  # slice record id
 497                 self.lcm_tasks.cancel(topic, nsir_id)
 498                 task = asyncio.ensure_future(
 499                     self.netslice.terminate(nsir_id, nsilcmop_id)
 500                 )
 501                 self.lcm_tasks.register(
 502                     "nsi", nsir_id, nsilcmop_id, "nsi_terminate", task
 503                 )
 504                 return
 505             elif command == "show":
 506                 nsir_id = params
 507                 try:
 508                     db_nsir = self.db.get_one("nsirs", {"_id": nsir_id})
 509                     print(
 510                         "nsir:\n    _id={}\n    operational-status: {}\n    config-status: {}"
 511                         "\n    detailed-status: {}\n    deploy: {}\n    tasks: {}"
 512                         "".format(
 513                             nsir_id,
 514                             db_nsir["operational-status"],
 515                             db_nsir["config-status"],
 516                             db_nsir["detailed-status"],
 517                             db_nsir["_admin"]["deployed"],
 518                             self.lcm_netslice_tasks.get(nsir_id),
 519                         )
 520                     )
 521                 except Exception as e:
 522                     print("nsir {} not found: {}".format(nsir_id, e))
 523                 sys.stdout.flush()
 524                 return
 525             elif command == "deleted":
 526                 return  # TODO cleaning of task just in case should be done
 527             elif command in (
 528                 "terminated",
 529                 "instantiated",
 530                 "scaled",
 531                 "actioned",
 532             ):  # "scaled-cooldown-time"
 533                 return
 534         elif topic == "vim_account":
 535             vim_id = params["_id"]
 536             if command in ("create", "created"):
 537                 if not self.config["ro_config"].get("ng"):
 538                     task = asyncio.ensure_future(self.vim.create(params, order_id))
 539                     self.lcm_tasks.register(
 540                         "vim_account", vim_id, order_id, "vim_create", task
 541                     )
 542                 return
 543             elif command == "delete" or command == "deleted":
 544                 self.lcm_tasks.cancel(topic, vim_id)
 545                 task = asyncio.ensure_future(self.vim.delete(params, order_id))
 546                 self.lcm_tasks.register(
 547                     "vim_account", vim_id, order_id, "vim_delete", task
 548                 )
 549                 return
 550             elif command == "show":
 551                 print("not implemented show with vim_account")
 552                 sys.stdout.flush()
 553                 return
 554             elif command in ("edit", "edited"):
 555                 if not self.config["ro_config"].get("ng"):
 556                     task = asyncio.ensure_future(self.vim.edit(params, order_id))
 557                     self.lcm_tasks.register(
 558                         "vim_account", vim_id, order_id, "vim_edit", task
 559                     )
 560                 return
 561             elif command == "deleted":
 562                 return  # TODO cleaning of task just in case should be done
 563         elif topic == "wim_account":
 564             wim_id = params["_id"]
 565             if command in ("create", "created"):
 566                 if not self.config["ro_config"].get("ng"):
 567                     task = asyncio.ensure_future(self.wim.create(params, order_id))
 568                     self.lcm_tasks.register(
 569                         "wim_account", wim_id, order_id, "wim_create", task
 570                     )
 571                 return
 572             elif command == "delete" or command == "deleted":
 573                 self.lcm_tasks.cancel(topic, wim_id)
 574                 task = asyncio.ensure_future(self.wim.delete(params, order_id))
 575                 self.lcm_tasks.register(
 576                     "wim_account", wim_id, order_id, "wim_delete", task
 577                 )
 578                 return
 579             elif command == "show":
 580                 print("not implemented show with wim_account")
 581                 sys.stdout.flush()
 582                 return
 583             elif command in ("edit", "edited"):
 584                 task = asyncio.ensure_future(self.wim.edit(params, order_id))
 585                 self.lcm_tasks.register(
 586                     "wim_account", wim_id, order_id, "wim_edit", task
 587                 )
 588                 return
 589             elif command == "deleted":
 590                 return  # TODO cleaning of task just in case should be done
 591         elif topic == "sdn":
 592             _sdn_id = params["_id"]
 593             if command in ("create", "created"):
 594                 if not self.config["ro_config"].get("ng"):
 595                     task = asyncio.ensure_future(self.sdn.create(params, order_id))
 596                     self.lcm_tasks.register(
 597                         "sdn", _sdn_id, order_id, "sdn_create", task
 598                     )
 599                 return
 600             elif command == "delete" or command == "deleted":
 601                 self.lcm_tasks.cancel(topic, _sdn_id)
 602                 task = asyncio.ensure_future(self.sdn.delete(params, order_id))
 603                 self.lcm_tasks.register("sdn", _sdn_id, order_id, "sdn_delete", task)
 604                 return
 605             elif command in ("edit", "edited"):
 606                 task = asyncio.ensure_future(self.sdn.edit(params, order_id))
 607                 self.lcm_tasks.register("sdn", _sdn_id, order_id, "sdn_edit", task)
 608                 return
 609             elif command == "deleted":
 610                 return  # TODO cleaning of task just in case should be done
 611         self.logger.critical("unknown topic {} and command '{}'".format(topic, command))
 612
 613     async def kafka_read(self):
 614         self.logger.debug(
 615             "Task kafka_read Enter with worker_id={}".format(self.worker_id)
 616         )
 617         # future = asyncio.Future()
 618         self.consecutive_errors = 0
 619         self.first_start = True
 620         while self.consecutive_errors < 10:
 621             try:
 622                 topics = (
 623                     "ns",
 624                     "vim_account",
 625                     "wim_account",
 626                     "sdn",
 627                     "nsi",
 628                     "k8scluster",
 629                     "vca",
 630                     "k8srepo",
 631                     "pla",
 632                 )
 633                 topics_admin = ("admin",)
 634                 await asyncio.gather(
 635                     self.msg.aioread(
 636                         topics, self.loop, self.kafka_read_callback, from_beginning=True
 637                     ),
 638                     self.msg_admin.aioread(
 639                         topics_admin,
 640                         self.loop,
 641                         self.kafka_read_callback,
 642                         group_id=False,
 643                     ),
 644                 )
 645
 646             except LcmExceptionExit:
 647                 self.logger.debug("Bye!")
 648                 break
 649             except Exception as e:
 650                 # if not first_start is the first time after starting. So leave more time and wait
 651                 # to allow kafka starts
 652                 if self.consecutive_errors == 8 if not self.first_start else 30:
 653                     self.logger.error(
 654                         "Task kafka_read task exit error too many errors. Exception: {}".format(
 655                             e
 656                         )
 657                     )
 658                     raise
 659                 self.consecutive_errors += 1
 660                 self.logger.error(
 661                     "Task kafka_read retrying after Exception {}".format(e)
 662                 )
 663                 wait_time = 2 if not self.first_start else 5
 664                 await asyncio.sleep(wait_time, loop=self.loop)
 665
 666         # self.logger.debug("Task kafka_read terminating")
 667         self.logger.debug("Task kafka_read exit")
 668
 669     def start(self):
 670
 671         # check RO version
 672         self.loop.run_until_complete(self.check_RO_version())
 673
 674         self.ns = ns.NsLcm(self.msg, self.lcm_tasks, self.config, self.loop)
 675         self.netslice = netslice.NetsliceLcm(
 676             self.msg, self.lcm_tasks, self.config, self.loop, self.ns
 677         )
 678         self.vim = vim_sdn.VimLcm(self.msg, self.lcm_tasks, self.config, self.loop)
 679         self.wim = vim_sdn.WimLcm(self.msg, self.lcm_tasks, self.config, self.loop)
 680         self.sdn = vim_sdn.SdnLcm(self.msg, self.lcm_tasks, self.config, self.loop)
 681         self.k8scluster = vim_sdn.K8sClusterLcm(
 682             self.msg, self.lcm_tasks, self.config, self.loop
 683         )
 684         self.vca = vim_sdn.VcaLcm(self.msg, self.lcm_tasks, self.config, self.loop)
 685         self.k8srepo = vim_sdn.K8sRepoLcm(
 686             self.msg, self.lcm_tasks, self.config, self.loop
 687         )
 688
 689         self.loop.run_until_complete(
 690             asyncio.gather(self.kafka_read(), self.kafka_ping())
 691         )
 692
 693         # TODO
 694         # self.logger.debug("Terminating cancelling creation tasks")
 695         # self.lcm_tasks.cancel("ALL", "create")
 696         # timeout = 200
 697         # while self.is_pending_tasks():
 698         #     self.logger.debug("Task kafka_read terminating. Waiting for tasks termination")
 699         #     await asyncio.sleep(2, loop=self.loop)
 700         #     timeout -= 2
 701         #     if not timeout:
 702         #         self.lcm_tasks.cancel("ALL", "ALL")
 703         self.loop.close()
 704         self.loop = None
 705         if self.db:
 706             self.db.db_disconnect()
 707         if self.msg:
 708             self.msg.disconnect()
 709         if self.msg_admin:
 710             self.msg_admin.disconnect()
 711         if self.fs:
 712             self.fs.fs_disconnect()
 713
 714     def read_config_file(self, config_file):
 715         # TODO make a [ini] + yaml inside parser
 716         # the configparser library is not suitable, because it does not admit comments at the end of line,
 717         # and not parse integer or boolean
 718         try:
 719             # read file as yaml format
 720             with open(config_file) as f:
 721                 conf = yaml.load(f, Loader=yaml.Loader)
 722             # Ensure all sections are not empty
 723             for k in (
 724                 "global",
 725                 "timeout",
 726                 "RO",
 727                 "VCA",
 728                 "database",
 729                 "storage",
 730                 "message",
 731             ):
 732                 if not conf.get(k):
 733                     conf[k] = {}
 734
 735             # read all environ that starts with OSMLCM_
 736             for k, v in environ.items():
 737                 if not k.startswith("OSMLCM_"):
 738                     continue
 739                 subject, _, item = k[7:].lower().partition("_")
 740                 if not item:
 741                     continue
 742                 if subject in ("ro", "vca"):
 743                     # put in capital letter
 744                     subject = subject.upper()
 745                 try:
 746                     if item == "port" or subject == "timeout":
 747                         conf[subject][item] = int(v)
 748                     else:
 749                         conf[subject][item] = v
 750                 except Exception as e:
 751                     self.logger.warning(
 752                         "skipping environ '{}' on exception '{}'".format(k, e)
 753                     )
 754
 755             # backward compatibility of VCA parameters
 756
 757             if "pubkey" in conf["VCA"]:
 758                 conf["VCA"]["public_key"] = conf["VCA"].pop("pubkey")
 759             if "cacert" in conf["VCA"]:
 760                 conf["VCA"]["ca_cert"] = conf["VCA"].pop("cacert")
 761             if "apiproxy" in conf["VCA"]:
 762                 conf["VCA"]["api_proxy"] = conf["VCA"].pop("apiproxy")
 763
 764             if "enableosupgrade" in conf["VCA"]:
 765                 conf["VCA"]["enable_os_upgrade"] = conf["VCA"].pop("enableosupgrade")
 766             if isinstance(conf["VCA"].get("enable_os_upgrade"), str):
 767                 if conf["VCA"]["enable_os_upgrade"].lower() == "false":
 768                     conf["VCA"]["enable_os_upgrade"] = False
 769                 elif conf["VCA"]["enable_os_upgrade"].lower() == "true":
 770                     conf["VCA"]["enable_os_upgrade"] = True
 771
 772             if "aptmirror" in conf["VCA"]:
 773                 conf["VCA"]["apt_mirror"] = conf["VCA"].pop("aptmirror")
 774
 775             return conf
 776         except Exception as e:
 777             self.logger.critical("At config file '{}': {}".format(config_file, e))
 778             exit(1)
 779
 780     @staticmethod
 781     def get_process_id():
 782         """
 783         Obtain a unique ID for this process. If running from inside docker, it will get docker ID. If not it
 784         will provide a random one
 785         :return: Obtained ID
 786         """
 787         # Try getting docker id. If fails, get pid
 788         try:
 789             with open("/proc/self/cgroup", "r") as f:
 790                 text_id_ = f.readline()
 791                 _, _, text_id = text_id_.rpartition("/")
 792                 text_id = text_id.replace("\n", "")[:12]
 793                 if text_id:
 794                     return text_id
 795         except Exception:
 796             pass
 797         # Return a random id
 798         return "".join(random_choice("0123456789abcdef") for _ in range(12))
 799
 800
 801 def usage():
 802     print(
 803         """Usage: {} [options]
 804         -c|--config [configuration_file]: loads the configuration file (default: ./lcm.cfg)
 805         --health-check: do not run lcm, but inspect kafka bus to determine if lcm is healthy
 806         -h|--help: shows this help
 807         """.format(
 808             sys.argv[0]
 809         )
 810     )
 811     # --log-socket-host HOST: send logs to this host")
 812     # --log-socket-port PORT: send logs using this port (default: 9022)")
 813
 814
 815 if __name__ == "__main__":
 816
 817     try:
 818         # print("SYS.PATH='{}'".format(sys.path))
 819         # load parameters and configuration
 820         # -h
 821         # -c value
 822         # --config value
 823         # --help
 824         # --health-check
 825         opts, args = getopt.getopt(
 826             sys.argv[1:], "hc:", ["config=", "help", "health-check"]
 827         )
 828         # TODO add  "log-socket-host=", "log-socket-port=", "log-file="
 829         config_file = None
 830         for o, a in opts:
 831             if o in ("-h", "--help"):
 832                 usage()
 833                 sys.exit()
 834             elif o in ("-c", "--config"):
 835                 config_file = a
 836             elif o == "--health-check":
 837                 from osm_lcm.lcm_hc import health_check
 838
 839                 health_check(health_check_file, Lcm.ping_interval_pace)
 840             # elif o == "--log-socket-port":
 841             #     log_socket_port = a
 842             # elif o == "--log-socket-host":
 843             #     log_socket_host = a
 844             # elif o == "--log-file":
 845             #     log_file = a
 846             else:
 847                 assert False, "Unhandled option"
 848
 849         if config_file:
 850             if not path.isfile(config_file):
 851                 print(
 852                     "configuration file '{}' does not exist".format(config_file),
 853                     file=sys.stderr,
 854                 )
 855                 exit(1)
 856         else:
 857             for config_file in (
 858                 __file__[: __file__.rfind(".")] + ".cfg",
 859                 "./lcm.cfg",
 860                 "/etc/osm/lcm.cfg",
 861             ):
 862                 if path.isfile(config_file):
 863                     break
 864             else:
 865                 print(
 866                     "No configuration file 'lcm.cfg' found neither at local folder nor at /etc/osm/",
 867                     file=sys.stderr,
 868                 )
 869                 exit(1)
 870         lcm = Lcm(config_file)
 871         lcm.start()
 872     except (LcmException, getopt.GetoptError) as e:
 873         print(str(e), file=sys.stderr)
 874         # usage()
 875         exit(1)