1 # -*- coding: utf-8 -*-
4 # Copyright 2020 Telefonica Investigacion y Desarrollo, S.A.U.
6 # Licensed under the Apache License, Version 2.0 (the "License"); you may
7 # not use this file except in compliance with the License. You may obtain
8 # a copy of the License at
10 # http://www.apache.org/licenses/LICENSE-2.0
12 # Unless required by applicable law or agreed to in writing, software
13 # distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
14 # WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
15 # License for the specific language governing permissions and limitations
21 This is thread that interacts with a VIM. It processes TASKs sequentially against a single VIM.
22 The tasks are stored at database in table ro_tasks
23 A single ro_task refers to a VIM element (flavor, image, network, ...).
24 A ro_task can contain several 'tasks', each one with a target, where to store the results
27 from copy
import deepcopy
28 from http
import HTTPStatus
32 from shutil
import rmtree
35 from unittest
.mock
import Mock
37 from importlib_metadata
import entry_points
38 from osm_common
.dbbase
import DbException
39 from osm_ng_ro
.vim_admin
import LockRenew
40 from osm_ro_plugin
import sdnconn
, vimconn
41 from osm_ro_plugin
.sdn_dummy
import SdnDummyConnector
42 from osm_ro_plugin
.vim_dummy
import VimDummyConnector
46 __author__
= "Alfonso Tierno"
47 __date__
= "$28-Sep-2017 12:07:15$"
50 def deep_get(target_dict
, *args
, **kwargs
):
52 Get a value from target_dict entering in the nested keys. If keys does not exist, it returns None
53 Example target_dict={a: {b: 5}}; key_list=[a,b] returns 5; both key_list=[a,b,c] and key_list=[f,h] return None
54 :param target_dict: dictionary to be read
55 :param args: list of keys to read from target_dict
56 :param kwargs: only can contain default=value to return if key is not present in the nested dictionary
57 :return: The wanted value if exist, None or default otherwise
60 if not isinstance(target_dict
, dict) or key
not in target_dict
:
61 return kwargs
.get("default")
62 target_dict
= target_dict
[key
]
66 class NsWorkerException(Exception):
70 class FailingConnector
:
71 def __init__(self
, error_msg
):
72 self
.error_msg
= error_msg
74 for method
in dir(vimconn
.VimConnector
):
77 self
, method
, Mock(side_effect
=vimconn
.VimConnException(error_msg
))
80 for method
in dir(sdnconn
.SdnConnectorBase
):
83 self
, method
, Mock(side_effect
=sdnconn
.SdnConnectorError(error_msg
))
87 class NsWorkerExceptionNotFound(NsWorkerException
):
91 class VimInteractionBase
:
92 """Base class to call VIM/SDN for creating, deleting and refresh networks, VMs, flavors, ...
93 It implements methods that does nothing and return ok"""
95 def __init__(self
, db
, my_vims
, db_vims
, logger
):
98 self
.my_vims
= my_vims
99 self
.db_vims
= db_vims
101 def new(self
, ro_task
, task_index
, task_depends
):
104 def refresh(self
, ro_task
):
105 """skip calling VIM to get image, flavor status. Assumes ok"""
106 if ro_task
["vim_info"]["vim_status"] == "VIM_ERROR":
111 def delete(self
, ro_task
, task_index
):
112 """skip calling VIM to delete image. Assumes ok"""
115 def exec(self
, ro_task
, task_index
, task_depends
):
116 return "DONE", None, None
119 class VimInteractionNet(VimInteractionBase
):
120 def new(self
, ro_task
, task_index
, task_depends
):
122 task
= ro_task
["tasks"][task_index
]
123 task_id
= task
["task_id"]
126 target_vim
= self
.my_vims
[ro_task
["target_id"]]
128 mgmtnet_defined_in_vim
= False
132 if task
.get("find_params"):
133 # if management, get configuration of VIM
134 if task
["find_params"].get("filter_dict"):
135 vim_filter
= task
["find_params"]["filter_dict"]
137 elif task
["find_params"].get("mgmt"):
140 self
.db_vims
[ro_task
["target_id"]],
142 "management_network_id",
144 mgmtnet_defined_in_vim
= True
146 "id": self
.db_vims
[ro_task
["target_id"]]["config"][
147 "management_network_id"
151 self
.db_vims
[ro_task
["target_id"]],
153 "management_network_name",
155 mgmtnet_defined_in_vim
= True
157 "name": self
.db_vims
[ro_task
["target_id"]]["config"][
158 "management_network_name"
162 vim_filter
= {"name": task
["find_params"]["name"]}
164 raise NsWorkerExceptionNotFound(
165 "Invalid find_params for new_net {}".format(task
["find_params"])
168 vim_nets
= target_vim
.get_network_list(vim_filter
)
169 if not vim_nets
and not task
.get("params"):
170 # If there is mgmt-network in the descriptor,
171 # there is no mapping of that network to a VIM network in the descriptor,
172 # also there is no mapping in the "--config" parameter or at VIM creation;
173 # that mgmt-network will be created.
174 if mgmtnet
and not mgmtnet_defined_in_vim
:
176 vim_filter
.get("name")
177 if vim_filter
.get("name")
178 else vim_filter
.get("id")[:16]
180 vim_net_id
, created_items
= target_vim
.new_network(
184 "Created mgmt network vim_net_id: {}".format(vim_net_id
)
188 raise NsWorkerExceptionNotFound(
189 "Network not found with this criteria: '{}'".format(
190 task
.get("find_params")
193 elif len(vim_nets
) > 1:
194 raise NsWorkerException(
195 "More than one network found with this criteria: '{}'".format(
201 vim_net_id
= vim_nets
[0]["id"]
204 params
= task
["params"]
205 vim_net_id
, created_items
= target_vim
.new_network(**params
)
208 ro_vim_item_update
= {
209 "vim_id": vim_net_id
,
210 "vim_status": "BUILD",
212 "created_items": created_items
,
216 "task={} {} new-net={} created={}".format(
217 task_id
, ro_task
["target_id"], vim_net_id
, created
221 return "BUILD", ro_vim_item_update
222 except (vimconn
.VimConnException
, NsWorkerException
) as e
:
224 "task={} vim={} new-net: {}".format(task_id
, ro_task
["target_id"], e
)
226 ro_vim_item_update
= {
227 "vim_status": "VIM_ERROR",
229 "vim_details": str(e
),
232 return "FAILED", ro_vim_item_update
234 def refresh(self
, ro_task
):
235 """Call VIM to get network status"""
236 ro_task_id
= ro_task
["_id"]
237 target_vim
= self
.my_vims
[ro_task
["target_id"]]
238 vim_id
= ro_task
["vim_info"]["vim_id"]
239 net_to_refresh_list
= [vim_id
]
242 vim_dict
= target_vim
.refresh_nets_status(net_to_refresh_list
)
243 vim_info
= vim_dict
[vim_id
]
245 if vim_info
["status"] == "ACTIVE":
247 elif vim_info
["status"] == "BUILD":
248 task_status
= "BUILD"
250 task_status
= "FAILED"
251 except vimconn
.VimConnException
as e
:
252 # Mark all tasks at VIM_ERROR status
254 "ro_task={} vim={} get-net={}: {}".format(
255 ro_task_id
, ro_task
["target_id"], vim_id
, e
258 vim_info
= {"status": "VIM_ERROR", "error_msg": str(e
)}
259 task_status
= "FAILED"
261 ro_vim_item_update
= {}
262 if ro_task
["vim_info"]["vim_status"] != vim_info
["status"]:
263 ro_vim_item_update
["vim_status"] = vim_info
["status"]
265 if ro_task
["vim_info"]["vim_name"] != vim_info
.get("name"):
266 ro_vim_item_update
["vim_name"] = vim_info
.get("name")
268 if vim_info
["status"] in ("ERROR", "VIM_ERROR"):
269 if ro_task
["vim_info"]["vim_details"] != vim_info
.get("error_msg"):
270 ro_vim_item_update
["vim_details"] = vim_info
.get("error_msg")
271 elif vim_info
["status"] == "DELETED":
272 ro_vim_item_update
["vim_id"] = None
273 ro_vim_item_update
["vim_details"] = "Deleted externally"
275 if ro_task
["vim_info"]["vim_details"] != vim_info
["vim_info"]:
276 ro_vim_item_update
["vim_details"] = vim_info
["vim_info"]
278 if ro_vim_item_update
:
280 "ro_task={} {} get-net={}: status={} {}".format(
282 ro_task
["target_id"],
284 ro_vim_item_update
.get("vim_status"),
285 ro_vim_item_update
.get("vim_details")
286 if ro_vim_item_update
.get("vim_status") != "ACTIVE"
291 return task_status
, ro_vim_item_update
293 def delete(self
, ro_task
, task_index
):
294 task
= ro_task
["tasks"][task_index
]
295 task_id
= task
["task_id"]
296 net_vim_id
= ro_task
["vim_info"]["vim_id"]
297 ro_vim_item_update_ok
= {
298 "vim_status": "DELETED",
300 "vim_details": "DELETED",
305 if net_vim_id
or ro_task
["vim_info"]["created_items"]:
306 target_vim
= self
.my_vims
[ro_task
["target_id"]]
307 target_vim
.delete_network(
308 net_vim_id
, ro_task
["vim_info"]["created_items"]
310 except vimconn
.VimConnNotFoundException
:
311 ro_vim_item_update_ok
["vim_details"] = "already deleted"
312 except vimconn
.VimConnException
as e
:
314 "ro_task={} vim={} del-net={}: {}".format(
315 ro_task
["_id"], ro_task
["target_id"], net_vim_id
, e
318 ro_vim_item_update
= {
319 "vim_status": "VIM_ERROR",
320 "vim_details": "Error while deleting: {}".format(e
),
323 return "FAILED", ro_vim_item_update
326 "task={} {} del-net={} {}".format(
328 ro_task
["target_id"],
330 ro_vim_item_update_ok
.get("vim_details", ""),
334 return "DONE", ro_vim_item_update_ok
337 class VimInteractionVdu(VimInteractionBase
):
338 max_retries_inject_ssh_key
= 20 # 20 times
339 time_retries_inject_ssh_key
= 30 # wevery 30 seconds
341 def new(self
, ro_task
, task_index
, task_depends
):
342 task
= ro_task
["tasks"][task_index
]
343 task_id
= task
["task_id"]
346 target_vim
= self
.my_vims
[ro_task
["target_id"]]
350 params
= task
["params"]
351 params_copy
= deepcopy(params
)
352 net_list
= params_copy
["net_list"]
355 # change task_id into network_id
356 if "net_id" in net
and net
["net_id"].startswith("TASK-"):
357 network_id
= task_depends
[net
["net_id"]]
360 raise NsWorkerException(
361 "Cannot create VM because depends on a network not created or found "
362 "for {}".format(net
["net_id"])
365 net
["net_id"] = network_id
367 if params_copy
["image_id"].startswith("TASK-"):
368 params_copy
["image_id"] = task_depends
[params_copy
["image_id"]]
370 if params_copy
["flavor_id"].startswith("TASK-"):
371 params_copy
["flavor_id"] = task_depends
[params_copy
["flavor_id"]]
373 affinity_group_list
= params_copy
["affinity_group_list"]
374 for affinity_group
in affinity_group_list
:
375 # change task_id into affinity_group_id
376 if "affinity_group_id" in affinity_group
and affinity_group
[
378 ].startswith("TASK-"):
379 affinity_group_id
= task_depends
[
380 affinity_group
["affinity_group_id"]
383 if not affinity_group_id
:
384 raise NsWorkerException(
385 "found for {}".format(affinity_group
["affinity_group_id"])
388 affinity_group
["affinity_group_id"] = affinity_group_id
390 vim_vm_id
, created_items
= target_vim
.new_vminstance(**params_copy
)
391 interfaces
= [iface
["vim_id"] for iface
in params_copy
["net_list"]]
393 ro_vim_item_update
= {
395 "vim_status": "BUILD",
397 "created_items": created_items
,
399 "interfaces_vim_ids": interfaces
,
403 "task={} {} new-vm={} created={}".format(
404 task_id
, ro_task
["target_id"], vim_vm_id
, created
408 return "BUILD", ro_vim_item_update
409 except (vimconn
.VimConnException
, NsWorkerException
) as e
:
411 "task={} {} new-vm: {}".format(task_id
, ro_task
["target_id"], e
)
413 ro_vim_item_update
= {
414 "vim_status": "VIM_ERROR",
416 "vim_details": str(e
),
419 return "FAILED", ro_vim_item_update
421 def delete(self
, ro_task
, task_index
):
422 task
= ro_task
["tasks"][task_index
]
423 task_id
= task
["task_id"]
424 vm_vim_id
= ro_task
["vim_info"]["vim_id"]
425 ro_vim_item_update_ok
= {
426 "vim_status": "DELETED",
428 "vim_details": "DELETED",
433 if vm_vim_id
or ro_task
["vim_info"]["created_items"]:
434 target_vim
= self
.my_vims
[ro_task
["target_id"]]
435 target_vim
.delete_vminstance(
436 vm_vim_id
, ro_task
["vim_info"]["created_items"]
438 except vimconn
.VimConnNotFoundException
:
439 ro_vim_item_update_ok
["vim_details"] = "already deleted"
440 except vimconn
.VimConnException
as e
:
442 "ro_task={} vim={} del-vm={}: {}".format(
443 ro_task
["_id"], ro_task
["target_id"], vm_vim_id
, e
446 ro_vim_item_update
= {
447 "vim_status": "VIM_ERROR",
448 "vim_details": "Error while deleting: {}".format(e
),
451 return "FAILED", ro_vim_item_update
454 "task={} {} del-vm={} {}".format(
456 ro_task
["target_id"],
458 ro_vim_item_update_ok
.get("vim_details", ""),
462 return "DONE", ro_vim_item_update_ok
464 def refresh(self
, ro_task
):
465 """Call VIM to get vm status"""
466 ro_task_id
= ro_task
["_id"]
467 target_vim
= self
.my_vims
[ro_task
["target_id"]]
468 vim_id
= ro_task
["vim_info"]["vim_id"]
473 vm_to_refresh_list
= [vim_id
]
475 vim_dict
= target_vim
.refresh_vms_status(vm_to_refresh_list
)
476 vim_info
= vim_dict
[vim_id
]
478 if vim_info
["status"] == "ACTIVE":
480 elif vim_info
["status"] == "BUILD":
481 task_status
= "BUILD"
483 task_status
= "FAILED"
485 # try to load and parse vim_information
487 vim_info_info
= yaml
.safe_load(vim_info
["vim_info"])
488 if vim_info_info
.get("name"):
489 vim_info
["name"] = vim_info_info
["name"]
492 except vimconn
.VimConnException
as e
:
493 # Mark all tasks at VIM_ERROR status
495 "ro_task={} vim={} get-vm={}: {}".format(
496 ro_task_id
, ro_task
["target_id"], vim_id
, e
499 vim_info
= {"status": "VIM_ERROR", "error_msg": str(e
)}
500 task_status
= "FAILED"
502 ro_vim_item_update
= {}
504 # Interfaces cannot be present if e.g. VM is not present, that is status=DELETED
506 if vim_info
.get("interfaces"):
507 for vim_iface_id
in ro_task
["vim_info"]["interfaces_vim_ids"]:
511 for iface
in vim_info
["interfaces"]
512 if vim_iface_id
== iface
["vim_interface_id"]
517 # iface.pop("vim_info", None)
518 vim_interfaces
.append(iface
)
522 for t
in ro_task
["tasks"]
523 if t
and t
["action"] == "CREATE" and t
["status"] != "FINISHED"
525 if vim_interfaces
and task_create
.get("mgmt_vnf_interface") is not None:
526 vim_interfaces
[task_create
["mgmt_vnf_interface"]][
530 mgmt_vdu_iface
= task_create
.get(
531 "mgmt_vdu_interface", task_create
.get("mgmt_vnf_interface", 0)
534 vim_interfaces
[mgmt_vdu_iface
]["mgmt_vdu_interface"] = True
536 if ro_task
["vim_info"]["interfaces"] != vim_interfaces
:
537 ro_vim_item_update
["interfaces"] = vim_interfaces
539 if ro_task
["vim_info"]["vim_status"] != vim_info
["status"]:
540 ro_vim_item_update
["vim_status"] = vim_info
["status"]
542 if ro_task
["vim_info"]["vim_name"] != vim_info
.get("name"):
543 ro_vim_item_update
["vim_name"] = vim_info
.get("name")
545 if vim_info
["status"] in ("ERROR", "VIM_ERROR"):
546 if ro_task
["vim_info"]["vim_details"] != vim_info
.get("error_msg"):
547 ro_vim_item_update
["vim_details"] = vim_info
.get("error_msg")
548 elif vim_info
["status"] == "DELETED":
549 ro_vim_item_update
["vim_id"] = None
550 ro_vim_item_update
["vim_details"] = "Deleted externally"
552 if ro_task
["vim_info"]["vim_details"] != vim_info
["vim_info"]:
553 ro_vim_item_update
["vim_details"] = vim_info
["vim_info"]
555 if ro_vim_item_update
:
557 "ro_task={} {} get-vm={}: status={} {}".format(
559 ro_task
["target_id"],
561 ro_vim_item_update
.get("vim_status"),
562 ro_vim_item_update
.get("vim_details")
563 if ro_vim_item_update
.get("vim_status") != "ACTIVE"
568 return task_status
, ro_vim_item_update
570 def exec(self
, ro_task
, task_index
, task_depends
):
571 task
= ro_task
["tasks"][task_index
]
572 task_id
= task
["task_id"]
573 target_vim
= self
.my_vims
[ro_task
["target_id"]]
574 db_task_update
= {"retries": 0}
575 retries
= task
.get("retries", 0)
578 params
= task
["params"]
579 params_copy
= deepcopy(params
)
580 params_copy
["ro_key"] = self
.db
.decrypt(
581 params_copy
.pop("private_key"),
582 params_copy
.pop("schema_version"),
583 params_copy
.pop("salt"),
585 params_copy
["ip_addr"] = params_copy
.pop("ip_address")
586 target_vim
.inject_user_key(**params_copy
)
588 "task={} {} action-vm=inject_key".format(task_id
, ro_task
["target_id"])
595 ) # params_copy["key"]
596 except (vimconn
.VimConnException
, NsWorkerException
) as e
:
599 if retries
< self
.max_retries_inject_ssh_key
:
605 "next_retry": self
.time_retries_inject_ssh_key
,
610 "task={} {} inject-ssh-key: {}".format(task_id
, ro_task
["target_id"], e
)
612 ro_vim_item_update
= {"vim_details": str(e
)}
614 return "FAILED", ro_vim_item_update
, db_task_update
617 class VimInteractionImage(VimInteractionBase
):
618 def new(self
, ro_task
, task_index
, task_depends
):
619 task
= ro_task
["tasks"][task_index
]
620 task_id
= task
["task_id"]
623 target_vim
= self
.my_vims
[ro_task
["target_id"]]
627 if task
.get("find_params"):
628 vim_images
= target_vim
.get_image_list(**task
["find_params"])
631 raise NsWorkerExceptionNotFound(
632 "Image not found with this criteria: '{}'".format(
636 elif len(vim_images
) > 1:
637 raise NsWorkerException(
638 "More than one image found with this criteria: '{}'".format(
643 vim_image_id
= vim_images
[0]["id"]
645 ro_vim_item_update
= {
646 "vim_id": vim_image_id
,
647 "vim_status": "DONE",
649 "created_items": created_items
,
653 "task={} {} new-image={} created={}".format(
654 task_id
, ro_task
["target_id"], vim_image_id
, created
658 return "DONE", ro_vim_item_update
659 except (NsWorkerException
, vimconn
.VimConnException
) as e
:
661 "task={} {} new-image: {}".format(task_id
, ro_task
["target_id"], e
)
663 ro_vim_item_update
= {
664 "vim_status": "VIM_ERROR",
666 "vim_details": str(e
),
669 return "FAILED", ro_vim_item_update
672 class VimInteractionFlavor(VimInteractionBase
):
673 def delete(self
, ro_task
, task_index
):
674 task
= ro_task
["tasks"][task_index
]
675 task_id
= task
["task_id"]
676 flavor_vim_id
= ro_task
["vim_info"]["vim_id"]
677 ro_vim_item_update_ok
= {
678 "vim_status": "DELETED",
680 "vim_details": "DELETED",
686 target_vim
= self
.my_vims
[ro_task
["target_id"]]
687 target_vim
.delete_flavor(flavor_vim_id
)
688 except vimconn
.VimConnNotFoundException
:
689 ro_vim_item_update_ok
["vim_details"] = "already deleted"
690 except vimconn
.VimConnException
as e
:
692 "ro_task={} vim={} del-flavor={}: {}".format(
693 ro_task
["_id"], ro_task
["target_id"], flavor_vim_id
, e
696 ro_vim_item_update
= {
697 "vim_status": "VIM_ERROR",
698 "vim_details": "Error while deleting: {}".format(e
),
701 return "FAILED", ro_vim_item_update
704 "task={} {} del-flavor={} {}".format(
706 ro_task
["target_id"],
708 ro_vim_item_update_ok
.get("vim_details", ""),
712 return "DONE", ro_vim_item_update_ok
714 def new(self
, ro_task
, task_index
, task_depends
):
715 task
= ro_task
["tasks"][task_index
]
716 task_id
= task
["task_id"]
719 target_vim
= self
.my_vims
[ro_task
["target_id"]]
725 if task
.get("find_params"):
727 flavor_data
= task
["find_params"]["flavor_data"]
728 vim_flavor_id
= target_vim
.get_flavor_id_from_data(flavor_data
)
729 except vimconn
.VimConnNotFoundException
:
732 if not vim_flavor_id
and task
.get("params"):
734 flavor_data
= task
["params"]["flavor_data"]
735 vim_flavor_id
= target_vim
.new_flavor(flavor_data
)
738 ro_vim_item_update
= {
739 "vim_id": vim_flavor_id
,
740 "vim_status": "DONE",
742 "created_items": created_items
,
746 "task={} {} new-flavor={} created={}".format(
747 task_id
, ro_task
["target_id"], vim_flavor_id
, created
751 return "DONE", ro_vim_item_update
752 except (vimconn
.VimConnException
, NsWorkerException
) as e
:
754 "task={} vim={} new-flavor: {}".format(task_id
, ro_task
["target_id"], e
)
756 ro_vim_item_update
= {
757 "vim_status": "VIM_ERROR",
759 "vim_details": str(e
),
762 return "FAILED", ro_vim_item_update
765 class VimInteractionAffinityGroup(VimInteractionBase
):
766 def delete(self
, ro_task
, task_index
):
767 task
= ro_task
["tasks"][task_index
]
768 task_id
= task
["task_id"]
769 affinity_group_vim_id
= ro_task
["vim_info"]["vim_id"]
770 ro_vim_item_update_ok
= {
771 "vim_status": "DELETED",
773 "vim_details": "DELETED",
778 if affinity_group_vim_id
:
779 target_vim
= self
.my_vims
[ro_task
["target_id"]]
780 target_vim
.delete_affinity_group(affinity_group_vim_id
)
781 except vimconn
.VimConnNotFoundException
:
782 ro_vim_item_update_ok
["vim_details"] = "already deleted"
783 except vimconn
.VimConnException
as e
:
785 "ro_task={} vim={} del-affinity-or-anti-affinity-group={}: {}".format(
786 ro_task
["_id"], ro_task
["target_id"], affinity_group_vim_id
, e
789 ro_vim_item_update
= {
790 "vim_status": "VIM_ERROR",
791 "vim_details": "Error while deleting: {}".format(e
),
794 return "FAILED", ro_vim_item_update
797 "task={} {} del-affinity-or-anti-affinity-group={} {}".format(
799 ro_task
["target_id"],
800 affinity_group_vim_id
,
801 ro_vim_item_update_ok
.get("vim_details", ""),
805 return "DONE", ro_vim_item_update_ok
807 def new(self
, ro_task
, task_index
, task_depends
):
808 task
= ro_task
["tasks"][task_index
]
809 task_id
= task
["task_id"]
812 target_vim
= self
.my_vims
[ro_task
["target_id"]]
815 affinity_group_vim_id
= None
817 if task
.get("params"):
818 affinity_group_data
= task
["params"]["affinity_group_data"]
819 affinity_group_vim_id
= target_vim
.new_affinity_group(
824 ro_vim_item_update
= {
825 "vim_id": affinity_group_vim_id
,
826 "vim_status": "DONE",
828 "created_items": created_items
,
832 "task={} {} new-affinity-or-anti-affinity-group={} created={}".format(
833 task_id
, ro_task
["target_id"], affinity_group_vim_id
, created
837 return "DONE", ro_vim_item_update
838 except (vimconn
.VimConnException
, NsWorkerException
) as e
:
840 "task={} vim={} new-affinity-or-anti-affinity-group:"
841 " {}".format(task_id
, ro_task
["target_id"], e
)
843 ro_vim_item_update
= {
844 "vim_status": "VIM_ERROR",
846 "vim_details": str(e
),
849 return "FAILED", ro_vim_item_update
852 class VimInteractionSdnNet(VimInteractionBase
):
854 def _match_pci(port_pci
, mapping
):
856 Check if port_pci matches with mapping
857 mapping can have brackets to indicate that several chars are accepted. e.g
858 pci '0000:af:10.1' matches with '0000:af:1[01].[1357]'
859 :param port_pci: text
860 :param mapping: text, can contain brackets to indicate several chars are available
861 :return: True if matches, False otherwise
863 if not port_pci
or not mapping
:
865 if port_pci
== mapping
:
871 bracket_start
= mapping
.find("[", mapping_index
)
873 if bracket_start
== -1:
876 bracket_end
= mapping
.find("]", bracket_start
)
877 if bracket_end
== -1:
880 length
= bracket_start
- mapping_index
883 and port_pci
[pci_index
: pci_index
+ length
]
884 != mapping
[mapping_index
:bracket_start
]
889 port_pci
[pci_index
+ length
]
890 not in mapping
[bracket_start
+ 1 : bracket_end
]
894 pci_index
+= length
+ 1
895 mapping_index
= bracket_end
+ 1
897 if port_pci
[pci_index
:] != mapping
[mapping_index
:]:
902 def _get_interfaces(self
, vlds_to_connect
, vim_account_id
):
904 :param vlds_to_connect: list with format vnfrs:<id>:vld.<vld_id> or nsrs:<id>:vld.<vld_id>
905 :param vim_account_id:
910 for vld
in vlds_to_connect
:
911 table
, _
, db_id
= vld
.partition(":")
912 db_id
, _
, vld
= db_id
.partition(":")
913 _
, _
, vld_id
= vld
.partition(".")
916 q_filter
= {"vim-account-id": vim_account_id
, "_id": db_id
}
917 iface_key
= "vnf-vld-id"
918 else: # table == "nsrs"
919 q_filter
= {"vim-account-id": vim_account_id
, "nsr-id-ref": db_id
}
920 iface_key
= "ns-vld-id"
922 db_vnfrs
= self
.db
.get_list("vnfrs", q_filter
=q_filter
)
924 for db_vnfr
in db_vnfrs
:
925 for vdu_index
, vdur
in enumerate(db_vnfr
.get("vdur", ())):
926 for iface_index
, interface
in enumerate(vdur
["interfaces"]):
927 if interface
.get(iface_key
) == vld_id
and interface
.get(
929 ) in ("SR-IOV", "PCI-PASSTHROUGH"):
931 interface_
= interface
.copy()
932 interface_
["id"] = "vnfrs:{}:vdu.{}.interfaces.{}".format(
933 db_vnfr
["_id"], vdu_index
, iface_index
936 if vdur
.get("status") == "ERROR":
937 interface_
["status"] = "ERROR"
939 interfaces
.append(interface_
)
943 def refresh(self
, ro_task
):
944 # look for task create
945 task_create_index
, _
= next(
947 for i_t
in enumerate(ro_task
["tasks"])
949 and i_t
[1]["action"] == "CREATE"
950 and i_t
[1]["status"] != "FINISHED"
953 return self
.new(ro_task
, task_create_index
, None)
955 def new(self
, ro_task
, task_index
, task_depends
):
957 task
= ro_task
["tasks"][task_index
]
958 task_id
= task
["task_id"]
959 target_vim
= self
.my_vims
[ro_task
["target_id"]]
961 sdn_net_id
= ro_task
["vim_info"]["vim_id"]
963 created_items
= ro_task
["vim_info"].get("created_items")
964 connected_ports
= ro_task
["vim_info"].get("connected_ports", [])
965 new_connected_ports
= []
966 last_update
= ro_task
["vim_info"].get("last_update", 0)
967 sdn_status
= ro_task
["vim_info"].get("vim_status", "BUILD") or "BUILD"
969 created
= ro_task
["vim_info"].get("created", False)
973 params
= task
["params"]
974 vlds_to_connect
= params
["vlds"]
975 associated_vim
= params
["target_vim"]
976 # external additional ports
977 additional_ports
= params
.get("sdn-ports") or ()
978 _
, _
, vim_account_id
= associated_vim
.partition(":")
982 if associated_vim
not in self
.db_vims
:
983 self
.db_vims
[associated_vim
] = self
.db
.get_one(
984 "vim_accounts", {"_id": vim_account_id
}
987 db_vim
= self
.db_vims
[associated_vim
]
989 # look for ports to connect
990 ports
= self
._get
_interfaces
(vlds_to_connect
, vim_account_id
)
994 pending_ports
= error_ports
= 0
996 sdn_need_update
= False
999 vlan_used
= port
.get("vlan") or vlan_used
1001 # TODO. Do not connect if already done
1002 if not port
.get("compute_node") or not port
.get("pci"):
1003 if port
.get("status") == "ERROR":
1010 compute_node_mappings
= next(
1013 for c
in db_vim
["config"].get("sdn-port-mapping", ())
1014 if c
and c
["compute_node"] == port
["compute_node"]
1019 if compute_node_mappings
:
1020 # process port_mapping pci of type 0000:af:1[01].[1357]
1024 for p
in compute_node_mappings
["ports"]
1025 if self
._match
_pci
(port
["pci"], p
.get("pci"))
1031 if not db_vim
["config"].get("mapping_not_needed"):
1033 "Port mapping not found for compute_node={} pci={}".format(
1034 port
["compute_node"], port
["pci"]
1041 service_endpoint_id
= "{}:{}".format(port
["compute_node"], port
["pci"])
1043 "service_endpoint_id": pmap
.get("service_endpoint_id")
1044 or service_endpoint_id
,
1045 "service_endpoint_encapsulation_type": "dot1q"
1046 if port
["type"] == "SR-IOV"
1048 "service_endpoint_encapsulation_info": {
1049 "vlan": port
.get("vlan"),
1050 "mac": port
.get("mac-address"),
1051 "device_id": pmap
.get("device_id") or port
["compute_node"],
1052 "device_interface_id": pmap
.get("device_interface_id")
1054 "switch_dpid": pmap
.get("switch_id") or pmap
.get("switch_dpid"),
1055 "switch_port": pmap
.get("switch_port"),
1056 "service_mapping_info": pmap
.get("service_mapping_info"),
1061 # if port["modified_at"] > last_update:
1062 # sdn_need_update = True
1063 new_connected_ports
.append(port
["id"]) # TODO
1064 sdn_ports
.append(new_port
)
1068 "{} interfaces have not been created as VDU is on ERROR status".format(
1073 # connect external ports
1074 for index
, additional_port
in enumerate(additional_ports
):
1075 additional_port_id
= additional_port
.get(
1076 "service_endpoint_id"
1077 ) or "external-{}".format(index
)
1080 "service_endpoint_id": additional_port_id
,
1081 "service_endpoint_encapsulation_type": additional_port
.get(
1082 "service_endpoint_encapsulation_type", "dot1q"
1084 "service_endpoint_encapsulation_info": {
1085 "vlan": additional_port
.get("vlan") or vlan_used
,
1086 "mac": additional_port
.get("mac_address"),
1087 "device_id": additional_port
.get("device_id"),
1088 "device_interface_id": additional_port
.get(
1089 "device_interface_id"
1091 "switch_dpid": additional_port
.get("switch_dpid")
1092 or additional_port
.get("switch_id"),
1093 "switch_port": additional_port
.get("switch_port"),
1094 "service_mapping_info": additional_port
.get(
1095 "service_mapping_info"
1100 new_connected_ports
.append(additional_port_id
)
1103 # if there are more ports to connect or they have been modified, call create/update
1105 sdn_status
= "ERROR"
1106 sdn_info
= "; ".join(error_list
)
1107 elif set(connected_ports
) != set(new_connected_ports
) or sdn_need_update
:
1108 last_update
= time
.time()
1111 if len(sdn_ports
) < 2:
1112 sdn_status
= "ACTIVE"
1114 if not pending_ports
:
1116 "task={} {} new-sdn-net done, less than 2 ports".format(
1117 task_id
, ro_task
["target_id"]
1121 net_type
= params
.get("type") or "ELAN"
1125 ) = target_vim
.create_connectivity_service(net_type
, sdn_ports
)
1128 "task={} {} new-sdn-net={} created={}".format(
1129 task_id
, ro_task
["target_id"], sdn_net_id
, created
1133 created_items
= target_vim
.edit_connectivity_service(
1134 sdn_net_id
, conn_info
=created_items
, connection_points
=sdn_ports
1138 "task={} {} update-sdn-net={} created={}".format(
1139 task_id
, ro_task
["target_id"], sdn_net_id
, created
1143 connected_ports
= new_connected_ports
1145 wim_status_dict
= target_vim
.get_connectivity_service_status(
1146 sdn_net_id
, conn_info
=created_items
1148 sdn_status
= wim_status_dict
["sdn_status"]
1150 if wim_status_dict
.get("sdn_info"):
1151 sdn_info
= str(wim_status_dict
.get("sdn_info")) or ""
1153 if wim_status_dict
.get("error_msg"):
1154 sdn_info
= wim_status_dict
.get("error_msg") or ""
1157 if sdn_status
!= "ERROR":
1158 sdn_info
= "Waiting for getting interfaces location from VIM. Obtained '{}' of {}".format(
1159 len(ports
) - pending_ports
, len(ports
)
1162 if sdn_status
== "ACTIVE":
1163 sdn_status
= "BUILD"
1165 ro_vim_item_update
= {
1166 "vim_id": sdn_net_id
,
1167 "vim_status": sdn_status
,
1169 "created_items": created_items
,
1170 "connected_ports": connected_ports
,
1171 "vim_details": sdn_info
,
1172 "last_update": last_update
,
1175 return sdn_status
, ro_vim_item_update
1176 except Exception as e
:
1178 "task={} vim={} new-net: {}".format(task_id
, ro_task
["target_id"], e
),
1179 exc_info
=not isinstance(
1180 e
, (sdnconn
.SdnConnectorError
, vimconn
.VimConnException
)
1183 ro_vim_item_update
= {
1184 "vim_status": "VIM_ERROR",
1186 "vim_details": str(e
),
1189 return "FAILED", ro_vim_item_update
1191 def delete(self
, ro_task
, task_index
):
1192 task
= ro_task
["tasks"][task_index
]
1193 task_id
= task
["task_id"]
1194 sdn_vim_id
= ro_task
["vim_info"].get("vim_id")
1195 ro_vim_item_update_ok
= {
1196 "vim_status": "DELETED",
1198 "vim_details": "DELETED",
1204 target_vim
= self
.my_vims
[ro_task
["target_id"]]
1205 target_vim
.delete_connectivity_service(
1206 sdn_vim_id
, ro_task
["vim_info"].get("created_items")
1209 except Exception as e
:
1211 isinstance(e
, sdnconn
.SdnConnectorError
)
1212 and e
.http_code
== HTTPStatus
.NOT_FOUND
.value
1214 ro_vim_item_update_ok
["vim_details"] = "already deleted"
1217 "ro_task={} vim={} del-sdn-net={}: {}".format(
1218 ro_task
["_id"], ro_task
["target_id"], sdn_vim_id
, e
1220 exc_info
=not isinstance(
1221 e
, (sdnconn
.SdnConnectorError
, vimconn
.VimConnException
)
1224 ro_vim_item_update
= {
1225 "vim_status": "VIM_ERROR",
1226 "vim_details": "Error while deleting: {}".format(e
),
1229 return "FAILED", ro_vim_item_update
1232 "task={} {} del-sdn-net={} {}".format(
1234 ro_task
["target_id"],
1236 ro_vim_item_update_ok
.get("vim_details", ""),
1240 return "DONE", ro_vim_item_update_ok
1243 class NsWorker(threading
.Thread
):
1244 REFRESH_BUILD
= 5 # 5 seconds
1245 REFRESH_ACTIVE
= 60 # 1 minute
1247 REFRESH_IMAGE
= 3600 * 10
1248 REFRESH_DELETE
= 3600 * 10
1252 def __init__(self
, worker_index
, config
, plugins
, db
):
1255 :param worker_index: thread index
1256 :param config: general configuration of RO, among others the process_id with the docker id where it runs
1257 :param plugins: global shared dict with the loaded plugins
1258 :param db: database class instance to use
1260 threading
.Thread
.__init
__(self
)
1261 self
.config
= config
1262 self
.plugins
= plugins
1263 self
.plugin_name
= "unknown"
1264 self
.logger
= logging
.getLogger("ro.worker{}".format(worker_index
))
1265 self
.worker_index
= worker_index
1266 self
.task_queue
= queue
.Queue(self
.QUEUE_SIZE
)
1267 # targetvim: vimplugin class
1269 # targetvim: vim information from database
1272 self
.vim_targets
= []
1273 self
.my_id
= config
["process_id"] + ":" + str(worker_index
)
1276 "net": VimInteractionNet(self
.db
, self
.my_vims
, self
.db_vims
, self
.logger
),
1277 "vdu": VimInteractionVdu(self
.db
, self
.my_vims
, self
.db_vims
, self
.logger
),
1278 "image": VimInteractionImage(
1279 self
.db
, self
.my_vims
, self
.db_vims
, self
.logger
1281 "flavor": VimInteractionFlavor(
1282 self
.db
, self
.my_vims
, self
.db_vims
, self
.logger
1284 "sdn_net": VimInteractionSdnNet(
1285 self
.db
, self
.my_vims
, self
.db_vims
, self
.logger
1287 "affinity-or-anti-affinity-group": VimInteractionAffinityGroup(
1288 self
.db
, self
.my_vims
, self
.db_vims
, self
.logger
1291 self
.time_last_task_processed
= None
1292 # lists of tasks to delete because nsrs or vnfrs has been deleted from db
1293 self
.tasks_to_delete
= []
1294 # it is idle when there are not vim_targets associated
1296 self
.task_locked_time
= config
["global"]["task_locked_time"]
1298 def insert_task(self
, task
):
1300 self
.task_queue
.put(task
, False)
1303 raise NsWorkerException("timeout inserting a task")
1305 def terminate(self
):
1306 self
.insert_task("exit")
1308 def del_task(self
, task
):
1309 with self
.task_lock
:
1310 if task
["status"] == "SCHEDULED":
1311 task
["status"] = "SUPERSEDED"
1313 else: # task["status"] == "processing"
1314 self
.task_lock
.release()
1317 def _process_vim_config(self
, target_id
, db_vim
):
1319 Process vim config, creating vim configuration files as ca_cert
1320 :param target_id: vim/sdn/wim + id
1321 :param db_vim: Vim dictionary obtained from database
1322 :return: None. Modifies vim. Creates a folder target_id:worker_index and several files
1324 if not db_vim
.get("config"):
1330 if db_vim
["config"].get("ca_cert_content"):
1331 file_name
= "{}:{}".format(target_id
, self
.worker_index
)
1335 except FileExistsError
:
1338 file_name
= file_name
+ "/ca_cert"
1340 with
open(file_name
, "w") as f
:
1341 f
.write(db_vim
["config"]["ca_cert_content"])
1342 del db_vim
["config"]["ca_cert_content"]
1343 db_vim
["config"]["ca_cert"] = file_name
1344 except Exception as e
:
1345 raise NsWorkerException(
1346 "Error writing to file '{}': {}".format(file_name
, e
)
1349 def _load_plugin(self
, name
, type="vim"):
1350 # type can be vim or sdn
1351 if "rovim_dummy" not in self
.plugins
:
1352 self
.plugins
["rovim_dummy"] = VimDummyConnector
1354 if "rosdn_dummy" not in self
.plugins
:
1355 self
.plugins
["rosdn_dummy"] = SdnDummyConnector
1357 if name
in self
.plugins
:
1358 return self
.plugins
[name
]
1361 for ep
in entry_points(group
="osm_ro{}.plugins".format(type), name
=name
):
1362 self
.plugins
[name
] = ep
.load()
1363 except Exception as e
:
1364 raise NsWorkerException("Cannot load plugin osm_{}: {}".format(name
, e
))
1366 if name
and name
not in self
.plugins
:
1367 raise NsWorkerException(
1368 "Plugin 'osm_{n}' has not been installed".format(n
=name
)
1371 return self
.plugins
[name
]
1373 def _unload_vim(self
, target_id
):
1375 Unload a vim_account. Removes it from self db_vims dictionary, my_vims dictionary and vim_targets list
1376 :param target_id: Contains type:_id; where type can be 'vim', ...
1380 self
.db_vims
.pop(target_id
, None)
1381 self
.my_vims
.pop(target_id
, None)
1383 if target_id
in self
.vim_targets
:
1384 self
.vim_targets
.remove(target_id
)
1386 self
.logger
.info("Unloaded {}".format(target_id
))
1387 rmtree("{}:{}".format(target_id
, self
.worker_index
))
1388 except FileNotFoundError
:
1389 pass # this is raised by rmtree if folder does not exist
1390 except Exception as e
:
1391 self
.logger
.error("Cannot unload {}: {}".format(target_id
, e
))
1393 def _check_vim(self
, target_id
):
1395 Load a VIM/SDN/WIM (if not loaded) and check connectivity, updating database with ENABLE or ERROR
1396 :param target_id: Contains type:_id; type can be 'vim', 'sdn' or 'wim'
1399 target
, _
, _id
= target_id
.partition(":")
1405 loaded
= target_id
in self
.vim_targets
1415 step
= "Getting {} from db".format(target_id
)
1416 db_vim
= self
.db
.get_one(target_database
, {"_id": _id
})
1418 for op_index
, operation
in enumerate(
1419 db_vim
["_admin"].get("operations", ())
1421 if operation
["operationState"] != "PROCESSING":
1424 locked_at
= operation
.get("locked_at")
1426 if locked_at
is not None and locked_at
>= now
- self
.task_locked_time
:
1427 # some other thread is doing this operation
1431 op_text
= "_admin.operations.{}.".format(op_index
)
1433 if not self
.db
.set_one(
1437 op_text
+ "operationState": "PROCESSING",
1438 op_text
+ "locked_at": locked_at
,
1441 op_text
+ "locked_at": now
,
1442 "admin.current_operation": op_index
,
1444 fail_on_empty
=False,
1448 unset_dict
[op_text
+ "locked_at"] = None
1449 unset_dict
["current_operation"] = None
1450 step
= "Loading " + target_id
1451 error_text
= self
._load
_vim
(target_id
)
1454 step
= "Checking connectivity"
1457 self
.my_vims
[target_id
].check_vim_connectivity()
1459 self
.my_vims
[target_id
].check_credentials()
1461 update_dict
["_admin.operationalState"] = "ENABLED"
1462 update_dict
["_admin.detailed-status"] = ""
1463 unset_dict
[op_text
+ "detailed-status"] = None
1464 update_dict
[op_text
+ "operationState"] = "COMPLETED"
1468 except Exception as e
:
1469 error_text
= "{}: {}".format(step
, e
)
1470 self
.logger
.error("{} for {}: {}".format(step
, target_id
, e
))
1473 if update_dict
or unset_dict
:
1475 update_dict
[op_text
+ "operationState"] = "FAILED"
1476 update_dict
[op_text
+ "detailed-status"] = error_text
1477 unset_dict
.pop(op_text
+ "detailed-status", None)
1478 update_dict
["_admin.operationalState"] = "ERROR"
1479 update_dict
["_admin.detailed-status"] = error_text
1482 update_dict
[op_text
+ "statusEnteredTime"] = now
1486 q_filter
={"_id": _id
},
1487 update_dict
=update_dict
,
1489 fail_on_empty
=False,
1493 self
._unload
_vim
(target_id
)
1495 def _reload_vim(self
, target_id
):
1496 if target_id
in self
.vim_targets
:
1497 self
._load
_vim
(target_id
)
1499 # if the vim is not loaded, but database information of VIM is cached at self.db_vims,
1500 # just remove it to force load again next time it is needed
1501 self
.db_vims
.pop(target_id
, None)
1503 def _load_vim(self
, target_id
):
1505 Load or reload a vim_account, sdn_controller or wim_account.
1506 Read content from database, load the plugin if not loaded.
1507 In case of error loading the plugin, it load a failing VIM_connector
1508 It fills self db_vims dictionary, my_vims dictionary and vim_targets list
1509 :param target_id: Contains type:_id; where type can be 'vim', ...
1510 :return: None if ok, descriptive text if error
1512 target
, _
, _id
= target_id
.partition(":")
1524 step
= "Getting {}={} from db".format(target
, _id
)
1525 # TODO process for wim, sdnc, ...
1526 vim
= self
.db
.get_one(target_database
, {"_id": _id
})
1528 # if deep_get(vim, "config", "sdn-controller"):
1529 # step = "Getting sdn-controller-id='{}' from db".format(vim["config"]["sdn-controller"])
1530 # db_sdn = self.db.get_one("sdns", {"_id": vim["config"]["sdn-controller"]})
1532 step
= "Decrypting password"
1533 schema_version
= vim
.get("schema_version")
1534 self
.db
.encrypt_decrypt_fields(
1537 fields
=("password", "secret"),
1538 schema_version
=schema_version
,
1541 self
._process
_vim
_config
(target_id
, vim
)
1544 plugin_name
= "rovim_" + vim
["vim_type"]
1545 step
= "Loading plugin '{}'".format(plugin_name
)
1546 vim_module_conn
= self
._load
_plugin
(plugin_name
)
1547 step
= "Loading {}'".format(target_id
)
1548 self
.my_vims
[target_id
] = vim_module_conn(
1551 tenant_id
=vim
.get("vim_tenant_id"),
1552 tenant_name
=vim
.get("vim_tenant_name"),
1555 user
=vim
["vim_user"],
1556 passwd
=vim
["vim_password"],
1557 config
=vim
.get("config") or {},
1561 plugin_name
= "rosdn_" + vim
["type"]
1562 step
= "Loading plugin '{}'".format(plugin_name
)
1563 vim_module_conn
= self
._load
_plugin
(plugin_name
, "sdn")
1564 step
= "Loading {}'".format(target_id
)
1566 wim_config
= wim
.pop("config", {}) or {}
1567 wim
["uuid"] = wim
["_id"]
1568 wim
["wim_url"] = wim
["url"]
1571 wim_config
["dpid"] = wim
.pop("dpid")
1573 if wim
.get("switch_id"):
1574 wim_config
["switch_id"] = wim
.pop("switch_id")
1576 # wim, wim_account, config
1577 self
.my_vims
[target_id
] = vim_module_conn(wim
, wim
, wim_config
)
1578 self
.db_vims
[target_id
] = vim
1579 self
.error_status
= None
1582 "Connector loaded for {}, plugin={}".format(target_id
, plugin_name
)
1584 except Exception as e
:
1586 "Cannot load {} plugin={}: {} {}".format(
1587 target_id
, plugin_name
, step
, e
1591 self
.db_vims
[target_id
] = vim
or {}
1592 self
.db_vims
[target_id
] = FailingConnector(str(e
))
1593 error_status
= "{} Error: {}".format(step
, e
)
1597 if target_id
not in self
.vim_targets
:
1598 self
.vim_targets
.append(target_id
)
1600 def _get_db_task(self
):
1602 Read actions from database and reload them at memory. Fill self.refresh_list, pending_list, vim_actions
1607 if not self
.time_last_task_processed
:
1608 self
.time_last_task_processed
= now
1613 # Log RO tasks only when loglevel is DEBUG
1614 if self.logger.getEffectiveLevel() == logging.DEBUG:
1621 + str(self.task_locked_time)
1623 + "time_last_task_processed="
1624 + str(self.time_last_task_processed)
1630 locked
= self
.db
.set_one(
1633 "target_id": self
.vim_targets
,
1634 "tasks.status": ["SCHEDULED", "BUILD", "DONE", "FAILED"],
1635 "locked_at.lt": now
- self
.task_locked_time
,
1636 "to_check_at.lt": self
.time_last_task_processed
,
1638 update_dict
={"locked_by": self
.my_id
, "locked_at": now
},
1639 fail_on_empty
=False,
1644 ro_task
= self
.db
.get_one(
1647 "target_id": self
.vim_targets
,
1648 "tasks.status": ["SCHEDULED", "BUILD", "DONE", "FAILED"],
1654 if self
.time_last_task_processed
== now
:
1655 self
.time_last_task_processed
= None
1658 self
.time_last_task_processed
= now
1659 # self.time_last_task_processed = min(self.time_last_task_processed + 1000, now)
1661 except DbException
as e
:
1662 self
.logger
.error("Database exception at _get_db_task: {}".format(e
))
1663 except Exception as e
:
1664 self
.logger
.critical(
1665 "Unexpected exception at _get_db_task: {}".format(e
), exc_info
=True
1670 def _get_db_all_tasks(self
):
1672 Read all content of table ro_tasks to log it
1676 # Checking the content of the BD:
1679 ro_task
= self
.db
.get_list("ro_tasks")
1681 self
._log
_ro
_task
(rt
, None, None, "TASK_WF", "GET_ALL_TASKS")
1684 except DbException
as e
:
1685 self
.logger
.error("Database exception at _get_db_all_tasks: {}".format(e
))
1686 except Exception as e
:
1687 self
.logger
.critical(
1688 "Unexpected exception at _get_db_all_tasks: {}".format(e
), exc_info
=True
1693 def _log_ro_task(self
, ro_task
, db_ro_task_update
, db_ro_task_delete
, mark
, event
):
1695 Generate a log with the following format:
1697 Mark;Event;ro_task_id;locked_at;modified_at;created_at;to_check_at;locked_by;
1698 target_id;vim_info.refresh_at;vim_info;no_of_tasks;task_status;action_id;
1699 task_array_index;task_id;task_action;task_item;task_args
1703 TASK_WF;GET_TASK;888f1864-749a-4fc2-bc1a-97c0fffd6a6f:2;1642158724.8210013;
1704 1642158640.7986135;1642158640.7986135;1642158640.7986135;b134c9494e75:0a
1705 ;vim:b7ff9e24-8868-4d68-8a57-a59dc11d0327;None;{'created': False,
1706 'created_items': None, 'vim_id': None, 'vim_name': None, 'vim_status': None,
1707 'vim_details': None, 'refresh_at': None};1;SCHEDULED;
1708 888f1864-749a-4fc2-bc1a-97c0fffd6a6f;0;888f1864-749a-4fc2-bc1a-97c0fffd6a6f:2;
1709 CREATE;image;{'filter_dict': {'name': 'ubuntu-os-cloud:image-family:ubuntu-1804-lts'}}
1714 if ro_task
is not None and isinstance(ro_task
, dict):
1715 for t
in ro_task
["tasks"]:
1719 line
.append(ro_task
.get("_id", ""))
1720 line
.append(str(ro_task
.get("locked_at", "")))
1721 line
.append(str(ro_task
.get("modified_at", "")))
1722 line
.append(str(ro_task
.get("created_at", "")))
1723 line
.append(str(ro_task
.get("to_check_at", "")))
1724 line
.append(str(ro_task
.get("locked_by", "")))
1725 line
.append(str(ro_task
.get("target_id", "")))
1726 line
.append(str(ro_task
.get("vim_info", {}).get("refresh_at", "")))
1727 line
.append(str(ro_task
.get("vim_info", "")))
1728 line
.append(str(ro_task
.get("tasks", "")))
1729 if isinstance(t
, dict):
1730 line
.append(str(t
.get("status", "")))
1731 line
.append(str(t
.get("action_id", "")))
1733 line
.append(str(t
.get("task_id", "")))
1734 line
.append(str(t
.get("action", "")))
1735 line
.append(str(t
.get("item", "")))
1736 line
.append(str(t
.get("find_params", "")))
1737 line
.append(str(t
.get("params", "")))
1739 line
.extend([""] * 2)
1741 line
.extend([""] * 5)
1744 self
.logger
.debug(";".join(line
))
1745 elif db_ro_task_update
is not None and isinstance(db_ro_task_update
, dict):
1748 st
= "tasks.{}.status".format(i
)
1749 if st
not in db_ro_task_update
:
1754 line
.append(db_ro_task_update
.get("_id", ""))
1755 line
.append(str(db_ro_task_update
.get("locked_at", "")))
1756 line
.append(str(db_ro_task_update
.get("modified_at", "")))
1758 line
.append(str(db_ro_task_update
.get("to_check_at", "")))
1759 line
.append(str(db_ro_task_update
.get("locked_by", "")))
1761 line
.append(str(db_ro_task_update
.get("vim_info.refresh_at", "")))
1763 line
.append(str(db_ro_task_update
.get("vim_info", "")))
1764 line
.append(str(str(db_ro_task_update
).count(".status")))
1765 line
.append(db_ro_task_update
.get(st
, ""))
1768 line
.extend([""] * 3)
1770 self
.logger
.debug(";".join(line
))
1772 elif db_ro_task_delete
is not None and isinstance(db_ro_task_delete
, dict):
1776 line
.append(db_ro_task_delete
.get("_id", ""))
1778 line
.append(db_ro_task_delete
.get("modified_at", ""))
1779 line
.extend([""] * 13)
1780 self
.logger
.debug(";".join(line
))
1786 line
.extend([""] * 16)
1787 self
.logger
.debug(";".join(line
))
1789 except Exception as e
:
1790 self
.logger
.error("Error logging ro_task: {}".format(e
))
1792 def _delete_task(self
, ro_task
, task_index
, task_depends
, db_update
):
1794 Determine if this task need to be done or superseded
1797 my_task
= ro_task
["tasks"][task_index
]
1798 task_id
= my_task
["task_id"]
1799 needed_delete
= ro_task
["vim_info"]["created"] or ro_task
["vim_info"].get(
1800 "created_items", False
1803 if my_task
["status"] == "FAILED":
1804 return None, None # TODO need to be retry??
1807 for index
, task
in enumerate(ro_task
["tasks"]):
1808 if index
== task_index
or not task
:
1812 my_task
["target_record"] == task
["target_record"]
1813 and task
["action"] == "CREATE"
1816 db_update
["tasks.{}.status".format(index
)] = task
[
1819 elif task
["action"] == "CREATE" and task
["status"] not in (
1823 needed_delete
= False
1826 return self
.item2class
[my_task
["item"]].delete(ro_task
, task_index
)
1828 return "SUPERSEDED", None
1829 except Exception as e
:
1830 if not isinstance(e
, NsWorkerException
):
1831 self
.logger
.critical(
1832 "Unexpected exception at _delete_task task={}: {}".format(
1838 return "FAILED", {"vim_status": "VIM_ERROR", "vim_details": str(e
)}
1840 def _create_task(self
, ro_task
, task_index
, task_depends
, db_update
):
1842 Determine if this task need to create something at VIM
1845 my_task
= ro_task
["tasks"][task_index
]
1846 task_id
= my_task
["task_id"]
1849 if my_task
["status"] == "FAILED":
1850 return None, None # TODO need to be retry??
1851 elif my_task
["status"] == "SCHEDULED":
1852 # check if already created by another task
1853 for index
, task
in enumerate(ro_task
["tasks"]):
1854 if index
== task_index
or not task
:
1857 if task
["action"] == "CREATE" and task
["status"] not in (
1862 return task
["status"], "COPY_VIM_INFO"
1865 task_status
, ro_vim_item_update
= self
.item2class
[my_task
["item"]].new(
1866 ro_task
, task_index
, task_depends
1868 # TODO update other CREATE tasks
1869 except Exception as e
:
1870 if not isinstance(e
, NsWorkerException
):
1872 "Error executing task={}: {}".format(task_id
, e
), exc_info
=True
1875 task_status
= "FAILED"
1876 ro_vim_item_update
= {"vim_status": "VIM_ERROR", "vim_details": str(e
)}
1877 # TODO update ro_vim_item_update
1879 return task_status
, ro_vim_item_update
1883 def _get_dependency(self
, task_id
, ro_task
=None, target_id
=None):
1885 Look for dependency task
1886 :param task_id: Can be one of
1887 1. target_vim+blank+task.target_record_id: "(vim|sdn|wim):<id> (vnfrs|nsrs):(vld|vdu|flavor|image).<id>"
1888 2. task.target_record_id: "(vnfrs|nsrs):(vld|vdu|flavor|image).<id>"
1889 3. task.task_id: "<action_id>:number"
1892 :return: database ro_task plus index of task
1895 task_id
.startswith("vim:")
1896 or task_id
.startswith("sdn:")
1897 or task_id
.startswith("wim:")
1899 target_id
, _
, task_id
= task_id
.partition(" ")
1901 if task_id
.startswith("nsrs:") or task_id
.startswith("vnfrs:"):
1902 ro_task_dependency
= self
.db
.get_one(
1904 q_filter
={"target_id": target_id
, "tasks.target_record_id": task_id
},
1905 fail_on_empty
=False,
1908 if ro_task_dependency
:
1909 for task_index
, task
in enumerate(ro_task_dependency
["tasks"]):
1910 if task
["target_record_id"] == task_id
:
1911 return ro_task_dependency
, task_index
1915 for task_index
, task
in enumerate(ro_task
["tasks"]):
1916 if task
and task
["task_id"] == task_id
:
1917 return ro_task
, task_index
1919 ro_task_dependency
= self
.db
.get_one(
1922 "tasks.ANYINDEX.task_id": task_id
,
1923 "tasks.ANYINDEX.target_record.ne": None,
1925 fail_on_empty
=False,
1928 if ro_task_dependency
:
1929 for task_index
, task
in ro_task_dependency
["tasks"]:
1930 if task
["task_id"] == task_id
:
1931 return ro_task_dependency
, task_index
1932 raise NsWorkerException("Cannot get depending task {}".format(task_id
))
1934 def _process_pending_tasks(self
, ro_task
):
1935 ro_task_id
= ro_task
["_id"]
1938 next_check_at
= now
+ (24 * 60 * 60)
1939 db_ro_task_update
= {}
1941 def _update_refresh(new_status
):
1942 # compute next_refresh
1944 nonlocal next_check_at
1945 nonlocal db_ro_task_update
1948 next_refresh
= time
.time()
1950 if task
["item"] in ("image", "flavor"):
1951 next_refresh
+= self
.REFRESH_IMAGE
1952 elif new_status
== "BUILD":
1953 next_refresh
+= self
.REFRESH_BUILD
1954 elif new_status
== "DONE":
1955 next_refresh
+= self
.REFRESH_ACTIVE
1957 next_refresh
+= self
.REFRESH_ERROR
1959 next_check_at
= min(next_check_at
, next_refresh
)
1960 db_ro_task_update
["vim_info.refresh_at"] = next_refresh
1961 ro_task
["vim_info"]["refresh_at"] = next_refresh
1965 # Log RO tasks only when loglevel is DEBUG
1966 if self.logger.getEffectiveLevel() == logging.DEBUG:
1967 self._log_ro_task(ro_task, None, None, "TASK_WF", "GET_TASK")
1969 # 0: get task_status_create
1971 task_status_create
= None
1975 for t
in ro_task
["tasks"]
1977 and t
["action"] == "CREATE"
1978 and t
["status"] in ("BUILD", "DONE")
1984 task_status_create
= task_create
["status"]
1986 # 1: look for tasks in status SCHEDULED, or in status CREATE if action is DONE or BUILD
1987 for task_action
in ("DELETE", "CREATE", "EXEC"):
1988 db_vim_update
= None
1991 for task_index
, task
in enumerate(ro_task
["tasks"]):
1993 continue # task deleted
1996 target_update
= None
2000 task_action
in ("DELETE", "EXEC")
2001 and task
["status"] not in ("SCHEDULED", "BUILD")
2003 or task
["action"] != task_action
2005 task_action
== "CREATE"
2006 and task
["status"] in ("FINISHED", "SUPERSEDED")
2011 task_path
= "tasks.{}.status".format(task_index
)
2013 db_vim_info_update
= None
2015 if task
["status"] == "SCHEDULED":
2016 # check if tasks that this depends on have been completed
2017 dependency_not_completed
= False
2019 for dependency_task_id
in task
.get("depends_on") or ():
2022 dependency_task_index
,
2023 ) = self
._get
_dependency
(
2024 dependency_task_id
, target_id
=ro_task
["target_id"]
2026 dependency_task
= dependency_ro_task
["tasks"][
2027 dependency_task_index
2030 if dependency_task
["status"] == "SCHEDULED":
2031 dependency_not_completed
= True
2032 next_check_at
= min(
2033 next_check_at
, dependency_ro_task
["to_check_at"]
2035 # must allow dependent task to be processed first
2036 # to do this set time after last_task_processed
2037 next_check_at
= max(
2038 self
.time_last_task_processed
, next_check_at
2041 elif dependency_task
["status"] == "FAILED":
2042 error_text
= "Cannot {} {} because depends on failed {} {} id={}): {}".format(
2045 dependency_task
["action"],
2046 dependency_task
["item"],
2048 dependency_ro_task
["vim_info"].get(
2053 "task={} {}".format(task
["task_id"], error_text
)
2055 raise NsWorkerException(error_text
)
2057 task_depends
[dependency_task_id
] = dependency_ro_task
[
2061 "TASK-{}".format(dependency_task_id
)
2062 ] = dependency_ro_task
["vim_info"]["vim_id"]
2064 if dependency_not_completed
:
2065 # TODO set at vim_info.vim_details that it is waiting
2068 # before calling VIM-plugin as it can take more than task_locked_time, insert to LockRenew
2069 # the task of renew this locking. It will update database locket_at periodically
2071 lock_object
= LockRenew
.add_lock_object(
2072 "ro_tasks", ro_task
, self
2075 if task
["action"] == "DELETE":
2076 (new_status
, db_vim_info_update
,) = self
._delete
_task
(
2077 ro_task
, task_index
, task_depends
, db_ro_task_update
2080 "FINISHED" if new_status
== "DONE" else new_status
2082 # ^with FINISHED instead of DONE it will not be refreshing
2084 if new_status
in ("FINISHED", "SUPERSEDED"):
2085 target_update
= "DELETE"
2086 elif task
["action"] == "EXEC":
2091 ) = self
.item2class
[task
["item"]].exec(
2092 ro_task
, task_index
, task_depends
2095 "FINISHED" if new_status
== "DONE" else new_status
2097 # ^with FINISHED instead of DONE it will not be refreshing
2100 # load into database the modified db_task_update "retries" and "next_retry"
2101 if db_task_update
.get("retries"):
2103 "tasks.{}.retries".format(task_index
)
2104 ] = db_task_update
["retries"]
2106 next_check_at
= time
.time() + db_task_update
.get(
2109 target_update
= None
2110 elif task
["action"] == "CREATE":
2111 if task
["status"] == "SCHEDULED":
2112 if task_status_create
:
2113 new_status
= task_status_create
2114 target_update
= "COPY_VIM_INFO"
2116 new_status
, db_vim_info_update
= self
.item2class
[
2118 ].new(ro_task
, task_index
, task_depends
)
2119 # self._create_task(ro_task, task_index, task_depends, db_ro_task_update)
2120 _update_refresh(new_status
)
2123 ro_task
["vim_info"]["refresh_at"]
2124 and now
> ro_task
["vim_info"]["refresh_at"]
2126 new_status
, db_vim_info_update
= self
.item2class
[
2129 _update_refresh(new_status
)
2131 # The refresh is updated to avoid set the value of "refresh_at" to
2132 # default value (next_check_at = now + (24 * 60 * 60)) when status is BUILD,
2133 # because it can happen that in this case the task is never processed
2134 _update_refresh(task
["status"])
2136 except Exception as e
:
2137 new_status
= "FAILED"
2138 db_vim_info_update
= {
2139 "vim_status": "VIM_ERROR",
2140 "vim_details": str(e
),
2144 e
, (NsWorkerException
, vimconn
.VimConnException
)
2147 "Unexpected exception at _delete_task task={}: {}".format(
2154 if db_vim_info_update
:
2155 db_vim_update
= db_vim_info_update
.copy()
2156 db_ro_task_update
.update(
2159 for k
, v
in db_vim_info_update
.items()
2162 ro_task
["vim_info"].update(db_vim_info_update
)
2165 if task_action
== "CREATE":
2166 task_status_create
= new_status
2167 db_ro_task_update
[task_path
] = new_status
2169 if target_update
or db_vim_update
:
2170 if target_update
== "DELETE":
2171 self
._update
_target
(task
, None)
2172 elif target_update
== "COPY_VIM_INFO":
2173 self
._update
_target
(task
, ro_task
["vim_info"])
2175 self
._update
_target
(task
, db_vim_update
)
2177 except Exception as e
:
2179 isinstance(e
, DbException
)
2180 and e
.http_code
== HTTPStatus
.NOT_FOUND
2182 # if the vnfrs or nsrs has been removed from database, this task must be removed
2184 "marking to delete task={}".format(task
["task_id"])
2186 self
.tasks_to_delete
.append(task
)
2189 "Unexpected exception at _update_target task={}: {}".format(
2195 locked_at
= ro_task
["locked_at"]
2199 lock_object
["locked_at"],
2200 lock_object
["locked_at"] + self
.task_locked_time
,
2202 # locked_at contains two times to avoid race condition. In case the lock has been renew, it will
2203 # contain exactly locked_at + self.task_locked_time
2204 LockRenew
.remove_lock_object(lock_object
)
2207 "_id": ro_task
["_id"],
2208 "to_check_at": ro_task
["to_check_at"],
2209 "locked_at": locked_at
,
2211 # modify own task. Try filtering by to_next_check. For race condition if to_check_at has been modified,
2212 # outside this task (by ro_nbi) do not update it
2213 db_ro_task_update
["locked_by"] = None
2214 # locked_at converted to int only for debugging. When has not decimals it means it has been unlocked
2215 db_ro_task_update
["locked_at"] = int(now
- self
.task_locked_time
)
2216 db_ro_task_update
["modified_at"] = now
2217 db_ro_task_update
["to_check_at"] = next_check_at
2220 # Log RO tasks only when loglevel is DEBUG
2221 if self.logger.getEffectiveLevel() == logging.DEBUG:
2222 db_ro_task_update_log = db_ro_task_update.copy()
2223 db_ro_task_update_log["_id"] = q_filter["_id"]
2224 self._log_ro_task(None, db_ro_task_update_log, None, "TASK_WF", "SET_TASK")
2227 if not self
.db
.set_one(
2229 update_dict
=db_ro_task_update
,
2231 fail_on_empty
=False,
2233 del db_ro_task_update
["to_check_at"]
2234 del q_filter
["to_check_at"]
2236 # Log RO tasks only when loglevel is DEBUG
2237 if self.logger.getEffectiveLevel() == logging.DEBUG:
2240 db_ro_task_update_log,
2243 "SET_TASK " + str(q_filter),
2249 update_dict
=db_ro_task_update
,
2252 except DbException
as e
:
2254 "ro_task={} Error updating database {}".format(ro_task_id
, e
)
2256 except Exception as e
:
2258 "Error executing ro_task={}: {}".format(ro_task_id
, e
), exc_info
=True
2261 def _update_target(self
, task
, ro_vim_item_update
):
2262 table
, _
, temp
= task
["target_record"].partition(":")
2263 _id
, _
, path_vim_status
= temp
.partition(":")
2264 path_item
= path_vim_status
[: path_vim_status
.rfind(".")]
2265 path_item
= path_item
[: path_item
.rfind(".")]
2266 # path_vim_status: dot separated list targeting vim information, e.g. "vdur.10.vim_info.vim:id"
2267 # path_item: dot separated list targeting record information, e.g. "vdur.10"
2269 if ro_vim_item_update
:
2271 path_vim_status
+ "." + k
: v
2272 for k
, v
in ro_vim_item_update
.items()
2274 in ("vim_id", "vim_details", "vim_name", "vim_status", "interfaces")
2277 if path_vim_status
.startswith("vdur."):
2278 # for backward compatibility, add vdur.name apart from vdur.vim_name
2279 if ro_vim_item_update
.get("vim_name"):
2280 update_dict
[path_item
+ ".name"] = ro_vim_item_update
["vim_name"]
2282 # for backward compatibility, add vdur.vim-id apart from vdur.vim_id
2283 if ro_vim_item_update
.get("vim_id"):
2284 update_dict
[path_item
+ ".vim-id"] = ro_vim_item_update
["vim_id"]
2286 # update general status
2287 if ro_vim_item_update
.get("vim_status"):
2288 update_dict
[path_item
+ ".status"] = ro_vim_item_update
[
2292 if ro_vim_item_update
.get("interfaces"):
2293 path_interfaces
= path_item
+ ".interfaces"
2295 for i
, iface
in enumerate(ro_vim_item_update
.get("interfaces")):
2299 path_interfaces
+ ".{}.".format(i
) + k
: v
2300 for k
, v
in iface
.items()
2301 if k
in ("vlan", "compute_node", "pci")
2305 # put ip_address and mac_address with ip-address and mac-address
2306 if iface
.get("ip_address"):
2308 path_interfaces
+ ".{}.".format(i
) + "ip-address"
2309 ] = iface
["ip_address"]
2311 if iface
.get("mac_address"):
2313 path_interfaces
+ ".{}.".format(i
) + "mac-address"
2314 ] = iface
["mac_address"]
2316 if iface
.get("mgmt_vnf_interface") and iface
.get("ip_address"):
2317 update_dict
["ip-address"] = iface
.get("ip_address").split(
2321 if iface
.get("mgmt_vdu_interface") and iface
.get("ip_address"):
2322 update_dict
[path_item
+ ".ip-address"] = iface
.get(
2326 self
.db
.set_one(table
, q_filter
={"_id": _id
}, update_dict
=update_dict
)
2328 update_dict
= {path_item
+ ".status": "DELETED"}
2331 q_filter
={"_id": _id
},
2332 update_dict
=update_dict
,
2333 unset
={path_vim_status
: None},
2336 def _process_delete_db_tasks(self
):
2338 Delete task from database because vnfrs or nsrs or both have been deleted
2339 :return: None. Uses and modify self.tasks_to_delete
2341 while self
.tasks_to_delete
:
2342 task
= self
.tasks_to_delete
[0]
2343 vnfrs_deleted
= None
2344 nsr_id
= task
["nsr_id"]
2346 if task
["target_record"].startswith("vnfrs:"):
2347 # check if nsrs is present
2348 if self
.db
.get_one("nsrs", {"_id": nsr_id
}, fail_on_empty
=False):
2349 vnfrs_deleted
= task
["target_record"].split(":")[1]
2352 self
.delete_db_tasks(self
.db
, nsr_id
, vnfrs_deleted
)
2353 except Exception as e
:
2355 "Error deleting task={}: {}".format(task
["task_id"], e
)
2357 self
.tasks_to_delete
.pop(0)
2360 def delete_db_tasks(db
, nsr_id
, vnfrs_deleted
):
2362 Static method because it is called from osm_ng_ro.ns
2363 :param db: instance of database to use
2364 :param nsr_id: affected nsrs id
2365 :param vnfrs_deleted: only tasks with this vnfr id. If None, all affected by nsr_id
2366 :return: None, exception is fails
2369 for retry
in range(retries
):
2370 ro_tasks
= db
.get_list("ro_tasks", {"tasks.nsr_id": nsr_id
})
2374 for ro_task
in ro_tasks
:
2376 to_delete_ro_task
= True
2378 for index
, task
in enumerate(ro_task
["tasks"]):
2381 elif (not vnfrs_deleted
and task
["nsr_id"] == nsr_id
) or (
2383 and task
["target_record"].startswith("vnfrs:" + vnfrs_deleted
)
2385 db_update
["tasks.{}".format(index
)] = None
2387 # used by other nsr, ro_task cannot be deleted
2388 to_delete_ro_task
= False
2390 # delete or update if nobody has changed ro_task meanwhile. Used modified_at for known if changed
2391 if to_delete_ro_task
:
2395 "_id": ro_task
["_id"],
2396 "modified_at": ro_task
["modified_at"],
2398 fail_on_empty
=False,
2402 db_update
["modified_at"] = now
2406 "_id": ro_task
["_id"],
2407 "modified_at": ro_task
["modified_at"],
2409 update_dict
=db_update
,
2410 fail_on_empty
=False,
2416 raise NsWorkerException("Exceeded {} retries".format(retries
))
2420 self
.logger
.info("Starting")
2422 # step 1: get commands from queue
2424 if self
.vim_targets
:
2425 task
= self
.task_queue
.get(block
=False)
2428 self
.logger
.debug("enters in idle state")
2430 task
= self
.task_queue
.get(block
=True)
2433 if task
[0] == "terminate":
2435 elif task
[0] == "load_vim":
2436 self
.logger
.info("order to load vim {}".format(task
[1]))
2437 self
._load
_vim
(task
[1])
2438 elif task
[0] == "unload_vim":
2439 self
.logger
.info("order to unload vim {}".format(task
[1]))
2440 self
._unload
_vim
(task
[1])
2441 elif task
[0] == "reload_vim":
2442 self
._reload
_vim
(task
[1])
2443 elif task
[0] == "check_vim":
2444 self
.logger
.info("order to check vim {}".format(task
[1]))
2445 self
._check
_vim
(task
[1])
2447 except Exception as e
:
2448 if isinstance(e
, queue
.Empty
):
2451 self
.logger
.critical(
2452 "Error processing task: {}".format(e
), exc_info
=True
2455 # step 2: process pending_tasks, delete not needed tasks
2457 if self
.tasks_to_delete
:
2458 self
._process
_delete
_db
_tasks
()
2461 # Log RO tasks only when loglevel is DEBUG
2462 if self.logger.getEffectiveLevel() == logging.DEBUG:
2463 _ = self._get_db_all_tasks()
2465 ro_task
= self
._get
_db
_task
()
2467 self
._process
_pending
_tasks
(ro_task
)
2471 except Exception as e
:
2472 self
.logger
.critical(
2473 "Unexpected exception at run: " + str(e
), exc_info
=True
2476 self
.logger
.info("Finishing")