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 == "show":
 459                 nsr_id = params
 460                 try:
 461                     db_nsr = self.db.get_one("nsrs", {"_id": nsr_id})
 462                     print(
 463                         "nsr:\n    _id={}\n    operational-status: {}\n    config-status: {}"
 464                         "\n    detailed-status: {}\n    deploy: {}\n    tasks: {}"
 465                         "".format(
 466                             nsr_id,
 467                             db_nsr["operational-status"],
 468                             db_nsr["config-status"],
 469                             db_nsr["detailed-status"],
 470                             db_nsr["_admin"]["deployed"],
 471                             self.lcm_ns_tasks.get(nsr_id),
 472                         )
 473                     )
 474                 except Exception as e:
 475                     print("nsr {} not found: {}".format(nsr_id, e))
 476                 sys.stdout.flush()
 477                 return
 478             elif command == "deleted":
 479                 return  # TODO cleaning of task just in case should be done
 480             elif command in (
 481                 "terminated",
 482                 "instantiated",
 483                 "scaled",
 484                 "actioned",
 485                 "updated",
 486             ):  # "scaled-cooldown-time"
 487                 return
 488         elif topic == "nsi":  # netslice LCM processes (instantiate, terminate, etc)
 489             if command == "instantiate":
 490                 # self.logger.debug("Instantiating Network Slice {}".format(nsilcmop["netsliceInstanceId"]))
 491                 nsilcmop = params
 492                 nsilcmop_id = nsilcmop["_id"]  # slice operation id
 493                 nsir_id = nsilcmop["netsliceInstanceId"]  # slice record id
 494                 task = asyncio.ensure_future(
 495                     self.netslice.instantiate(nsir_id, nsilcmop_id)
 496                 )
 497                 self.lcm_tasks.register(
 498                     "nsi", nsir_id, nsilcmop_id, "nsi_instantiate", task
 499                 )
 500                 return
 501             elif command == "terminate":
 502                 # self.logger.debug("Terminating Network Slice NS {}".format(nsilcmop["netsliceInstanceId"]))
 503                 nsilcmop = params
 504                 nsilcmop_id = nsilcmop["_id"]  # slice operation id
 505                 nsir_id = nsilcmop["netsliceInstanceId"]  # slice record id
 506                 self.lcm_tasks.cancel(topic, nsir_id)
 507                 task = asyncio.ensure_future(
 508                     self.netslice.terminate(nsir_id, nsilcmop_id)
 509                 )
 510                 self.lcm_tasks.register(
 511                     "nsi", nsir_id, nsilcmop_id, "nsi_terminate", task
 512                 )
 513                 return
 514             elif command == "show":
 515                 nsir_id = params
 516                 try:
 517                     db_nsir = self.db.get_one("nsirs", {"_id": nsir_id})
 518                     print(
 519                         "nsir:\n    _id={}\n    operational-status: {}\n    config-status: {}"
 520                         "\n    detailed-status: {}\n    deploy: {}\n    tasks: {}"
 521                         "".format(
 522                             nsir_id,
 523                             db_nsir["operational-status"],
 524                             db_nsir["config-status"],
 525                             db_nsir["detailed-status"],
 526                             db_nsir["_admin"]["deployed"],
 527                             self.lcm_netslice_tasks.get(nsir_id),
 528                         )
 529                     )
 530                 except Exception as e:
 531                     print("nsir {} not found: {}".format(nsir_id, e))
 532                 sys.stdout.flush()
 533                 return
 534             elif command == "deleted":
 535                 return  # TODO cleaning of task just in case should be done
 536             elif command in (
 537                 "terminated",
 538                 "instantiated",
 539                 "scaled",
 540                 "actioned",
 541             ):  # "scaled-cooldown-time"
 542                 return
 543         elif topic == "vim_account":
 544             vim_id = params["_id"]
 545             if command in ("create", "created"):
 546                 if not self.config["ro_config"].get("ng"):
 547                     task = asyncio.ensure_future(self.vim.create(params, order_id))
 548                     self.lcm_tasks.register(
 549                         "vim_account", vim_id, order_id, "vim_create", task
 550                     )
 551                 return
 552             elif command == "delete" or command == "deleted":
 553                 self.lcm_tasks.cancel(topic, vim_id)
 554                 task = asyncio.ensure_future(self.vim.delete(params, order_id))
 555                 self.lcm_tasks.register(
 556                     "vim_account", vim_id, order_id, "vim_delete", task
 557                 )
 558                 return
 559             elif command == "show":
 560                 print("not implemented show with vim_account")
 561                 sys.stdout.flush()
 562                 return
 563             elif command in ("edit", "edited"):
 564                 if not self.config["ro_config"].get("ng"):
 565                     task = asyncio.ensure_future(self.vim.edit(params, order_id))
 566                     self.lcm_tasks.register(
 567                         "vim_account", vim_id, order_id, "vim_edit", task
 568                     )
 569                 return
 570             elif command == "deleted":
 571                 return  # TODO cleaning of task just in case should be done
 572         elif topic == "wim_account":
 573             wim_id = params["_id"]
 574             if command in ("create", "created"):
 575                 if not self.config["ro_config"].get("ng"):
 576                     task = asyncio.ensure_future(self.wim.create(params, order_id))
 577                     self.lcm_tasks.register(
 578                         "wim_account", wim_id, order_id, "wim_create", task
 579                     )
 580                 return
 581             elif command == "delete" or command == "deleted":
 582                 self.lcm_tasks.cancel(topic, wim_id)
 583                 task = asyncio.ensure_future(self.wim.delete(params, order_id))
 584                 self.lcm_tasks.register(
 585                     "wim_account", wim_id, order_id, "wim_delete", task
 586                 )
 587                 return
 588             elif command == "show":
 589                 print("not implemented show with wim_account")
 590                 sys.stdout.flush()
 591                 return
 592             elif command in ("edit", "edited"):
 593                 task = asyncio.ensure_future(self.wim.edit(params, order_id))
 594                 self.lcm_tasks.register(
 595                     "wim_account", wim_id, order_id, "wim_edit", task
 596                 )
 597                 return
 598             elif command == "deleted":
 599                 return  # TODO cleaning of task just in case should be done
 600         elif topic == "sdn":
 601             _sdn_id = params["_id"]
 602             if command in ("create", "created"):
 603                 if not self.config["ro_config"].get("ng"):
 604                     task = asyncio.ensure_future(self.sdn.create(params, order_id))
 605                     self.lcm_tasks.register(
 606                         "sdn", _sdn_id, order_id, "sdn_create", task
 607                     )
 608                 return
 609             elif command == "delete" or command == "deleted":
 610                 self.lcm_tasks.cancel(topic, _sdn_id)
 611                 task = asyncio.ensure_future(self.sdn.delete(params, order_id))
 612                 self.lcm_tasks.register("sdn", _sdn_id, order_id, "sdn_delete", task)
 613                 return
 614             elif command in ("edit", "edited"):
 615                 task = asyncio.ensure_future(self.sdn.edit(params, order_id))
 616                 self.lcm_tasks.register("sdn", _sdn_id, order_id, "sdn_edit", task)
 617                 return
 618             elif command == "deleted":
 619                 return  # TODO cleaning of task just in case should be done
 620         self.logger.critical("unknown topic {} and command '{}'".format(topic, command))
 621
 622     async def kafka_read(self):
 623         self.logger.debug(
 624             "Task kafka_read Enter with worker_id={}".format(self.worker_id)
 625         )
 626         # future = asyncio.Future()
 627         self.consecutive_errors = 0
 628         self.first_start = True
 629         while self.consecutive_errors < 10:
 630             try:
 631                 topics = (
 632                     "ns",
 633                     "vim_account",
 634                     "wim_account",
 635                     "sdn",
 636                     "nsi",
 637                     "k8scluster",
 638                     "vca",
 639                     "k8srepo",
 640                     "pla",
 641                 )
 642                 topics_admin = ("admin",)
 643                 await asyncio.gather(
 644                     self.msg.aioread(
 645                         topics, self.loop, self.kafka_read_callback, from_beginning=True
 646                     ),
 647                     self.msg_admin.aioread(
 648                         topics_admin,
 649                         self.loop,
 650                         self.kafka_read_callback,
 651                         group_id=False,
 652                     ),
 653                 )
 654
 655             except LcmExceptionExit:
 656                 self.logger.debug("Bye!")
 657                 break
 658             except Exception as e:
 659                 # if not first_start is the first time after starting. So leave more time and wait
 660                 # to allow kafka starts
 661                 if self.consecutive_errors == 8 if not self.first_start else 30:
 662                     self.logger.error(
 663                         "Task kafka_read task exit error too many errors. Exception: {}".format(
 664                             e
 665                         )
 666                     )
 667                     raise
 668                 self.consecutive_errors += 1
 669                 self.logger.error(
 670                     "Task kafka_read retrying after Exception {}".format(e)
 671                 )
 672                 wait_time = 2 if not self.first_start else 5
 673                 await asyncio.sleep(wait_time, loop=self.loop)
 674
 675         # self.logger.debug("Task kafka_read terminating")
 676         self.logger.debug("Task kafka_read exit")
 677
 678     def start(self):
 679
 680         # check RO version
 681         self.loop.run_until_complete(self.check_RO_version())
 682
 683         self.ns = ns.NsLcm(self.msg, self.lcm_tasks, self.config, self.loop)
 684         self.netslice = netslice.NetsliceLcm(
 685             self.msg, self.lcm_tasks, self.config, self.loop, self.ns
 686         )
 687         self.vim = vim_sdn.VimLcm(self.msg, self.lcm_tasks, self.config, self.loop)
 688         self.wim = vim_sdn.WimLcm(self.msg, self.lcm_tasks, self.config, self.loop)
 689         self.sdn = vim_sdn.SdnLcm(self.msg, self.lcm_tasks, self.config, self.loop)
 690         self.k8scluster = vim_sdn.K8sClusterLcm(
 691             self.msg, self.lcm_tasks, self.config, self.loop
 692         )
 693         self.vca = vim_sdn.VcaLcm(self.msg, self.lcm_tasks, self.config, self.loop)
 694         self.k8srepo = vim_sdn.K8sRepoLcm(
 695             self.msg, self.lcm_tasks, self.config, self.loop
 696         )
 697
 698         self.loop.run_until_complete(
 699             asyncio.gather(self.kafka_read(), self.kafka_ping())
 700         )
 701
 702         # TODO
 703         # self.logger.debug("Terminating cancelling creation tasks")
 704         # self.lcm_tasks.cancel("ALL", "create")
 705         # timeout = 200
 706         # while self.is_pending_tasks():
 707         #     self.logger.debug("Task kafka_read terminating. Waiting for tasks termination")
 708         #     await asyncio.sleep(2, loop=self.loop)
 709         #     timeout -= 2
 710         #     if not timeout:
 711         #         self.lcm_tasks.cancel("ALL", "ALL")
 712         self.loop.close()
 713         self.loop = None
 714         if self.db:
 715             self.db.db_disconnect()
 716         if self.msg:
 717             self.msg.disconnect()
 718         if self.msg_admin:
 719             self.msg_admin.disconnect()
 720         if self.fs:
 721             self.fs.fs_disconnect()
 722
 723     def read_config_file(self, config_file):
 724         # TODO make a [ini] + yaml inside parser
 725         # the configparser library is not suitable, because it does not admit comments at the end of line,
 726         # and not parse integer or boolean
 727         try:
 728             # read file as yaml format
 729             with open(config_file) as f:
 730                 conf = yaml.load(f, Loader=yaml.Loader)
 731             # Ensure all sections are not empty
 732             for k in (
 733                 "global",
 734                 "timeout",
 735                 "RO",
 736                 "VCA",
 737                 "database",
 738                 "storage",
 739                 "message",
 740             ):
 741                 if not conf.get(k):
 742                     conf[k] = {}
 743
 744             # read all environ that starts with OSMLCM_
 745             for k, v in environ.items():
 746                 if not k.startswith("OSMLCM_"):
 747                     continue
 748                 subject, _, item = k[7:].lower().partition("_")
 749                 if not item:
 750                     continue
 751                 if subject in ("ro", "vca"):
 752                     # put in capital letter
 753                     subject = subject.upper()
 754                 try:
 755                     if item == "port" or subject == "timeout":
 756                         conf[subject][item] = int(v)
 757                     else:
 758                         conf[subject][item] = v
 759                 except Exception as e:
 760                     self.logger.warning(
 761                         "skipping environ '{}' on exception '{}'".format(k, e)
 762                     )
 763
 764             # backward compatibility of VCA parameters
 765
 766             if "pubkey" in conf["VCA"]:
 767                 conf["VCA"]["public_key"] = conf["VCA"].pop("pubkey")
 768             if "cacert" in conf["VCA"]:
 769                 conf["VCA"]["ca_cert"] = conf["VCA"].pop("cacert")
 770             if "apiproxy" in conf["VCA"]:
 771                 conf["VCA"]["api_proxy"] = conf["VCA"].pop("apiproxy")
 772
 773             if "enableosupgrade" in conf["VCA"]:
 774                 conf["VCA"]["enable_os_upgrade"] = conf["VCA"].pop("enableosupgrade")
 775             if isinstance(conf["VCA"].get("enable_os_upgrade"), str):
 776                 if conf["VCA"]["enable_os_upgrade"].lower() == "false":
 777                     conf["VCA"]["enable_os_upgrade"] = False
 778                 elif conf["VCA"]["enable_os_upgrade"].lower() == "true":
 779                     conf["VCA"]["enable_os_upgrade"] = True
 780
 781             if "aptmirror" in conf["VCA"]:
 782                 conf["VCA"]["apt_mirror"] = conf["VCA"].pop("aptmirror")
 783
 784             return conf
 785         except Exception as e:
 786             self.logger.critical("At config file '{}': {}".format(config_file, e))
 787             exit(1)
 788
 789     @staticmethod
 790     def get_process_id():
 791         """
 792         Obtain a unique ID for this process. If running from inside docker, it will get docker ID. If not it
 793         will provide a random one
 794         :return: Obtained ID
 795         """
 796         # Try getting docker id. If fails, get pid
 797         try:
 798             with open("/proc/self/cgroup", "r") as f:
 799                 text_id_ = f.readline()
 800                 _, _, text_id = text_id_.rpartition("/")
 801                 text_id = text_id.replace("\n", "")[:12]
 802                 if text_id:
 803                     return text_id
 804         except Exception:
 805             pass
 806         # Return a random id
 807         return "".join(random_choice("0123456789abcdef") for _ in range(12))
 808
 809
 810 def usage():
 811     print(
 812         """Usage: {} [options]
 813         -c|--config [configuration_file]: loads the configuration file (default: ./lcm.cfg)
 814         --health-check: do not run lcm, but inspect kafka bus to determine if lcm is healthy
 815         -h|--help: shows this help
 816         """.format(
 817             sys.argv[0]
 818         )
 819     )
 820     # --log-socket-host HOST: send logs to this host")
 821     # --log-socket-port PORT: send logs using this port (default: 9022)")
 822
 823
 824 if __name__ == "__main__":
 825
 826     try:
 827         # print("SYS.PATH='{}'".format(sys.path))
 828         # load parameters and configuration
 829         # -h
 830         # -c value
 831         # --config value
 832         # --help
 833         # --health-check
 834         opts, args = getopt.getopt(
 835             sys.argv[1:], "hc:", ["config=", "help", "health-check"]
 836         )
 837         # TODO add  "log-socket-host=", "log-socket-port=", "log-file="
 838         config_file = None
 839         for o, a in opts:
 840             if o in ("-h", "--help"):
 841                 usage()
 842                 sys.exit()
 843             elif o in ("-c", "--config"):
 844                 config_file = a
 845             elif o == "--health-check":
 846                 from osm_lcm.lcm_hc import health_check
 847
 848                 health_check(health_check_file, Lcm.ping_interval_pace)
 849             # elif o == "--log-socket-port":
 850             #     log_socket_port = a
 851             # elif o == "--log-socket-host":
 852             #     log_socket_host = a
 853             # elif o == "--log-file":
 854             #     log_file = a
 855             else:
 856                 assert False, "Unhandled option"
 857
 858         if config_file:
 859             if not path.isfile(config_file):
 860                 print(
 861                     "configuration file '{}' does not exist".format(config_file),
 862                     file=sys.stderr,
 863                 )
 864                 exit(1)
 865         else:
 866             for config_file in (
 867                 __file__[: __file__.rfind(".")] + ".cfg",
 868                 "./lcm.cfg",
 869                 "/etc/osm/lcm.cfg",
 870             ):
 871                 if path.isfile(config_file):
 872                     break
 873             else:
 874                 print(
 875                     "No configuration file 'lcm.cfg' found neither at local folder nor at /etc/osm/",
 876                     file=sys.stderr,
 877                 )
 878                 exit(1)
 879         lcm = Lcm(config_file)
 880         lcm.start()
 881     except (LcmException, getopt.GetoptError) as e:
 882         print(str(e), file=sys.stderr)
 883         # usage()
 884         exit(1)