# contact with: nfvlabs@tid.es
##
-'''
-This is thread that interact with the host and the libvirt to manage VM
-One thread will be launched per host
-'''
-__author__ = "Alfonso Tierno"
-__date__ = "$10-feb-2017 12:07:15$"
+""""
+This is thread that interacts with a VIM. It processes TASKs sequentially against a single VIM.
+The tasks are stored at database in table vim_actions
+The task content are (M: stored at memory, D: stored at database):
+ MD instance_action_id: reference a global action over an instance-scenario: database instance_actions
+ MD task_index: index number of the task. This with the previous are a key
+ MD datacenter_vim_id: should contain the uuid of the VIM managed by this thread
+ MD vim_id: id of the vm,net,etc at VIM
+ MD action: CREATE, DELETE, FIND
+ MD item: database table name, can be instance_vms, instance_nets, TODO: datacenter_flavors, datacenter_images
+ MD item_id: uuid of the referenced entry in the preious table
+ MD status: SCHEDULED,BUILD,DONE,FAILED,SUPERSEDED
+ MD extra: text with yaml format at database, dict at memory with:
+ params: list with the params to be sent to the VIM for CREATE or FIND. For DELETE the vim_id is taken from other related tasks
+ find: (only for CREATE tasks) if present it should FIND before creating and use if existing. Contains the FIND params
+ depends_on: list with the 'task_index'es of tasks that must be completed before. e.g. a vm depends on a net
+ sdn_net_id: used for net.
+ tries:
+ interfaces: used for VMs. Each key is the uuid of the instance_interfaces entry at database
+ iface_id: uuid of intance_interfaces
+ sdn_port_id:
+ sdn_net_id:
+ created: False if the VIM element is not created by other actions, and it should not be deleted
+ vim_status: VIM status of the element. Stored also at database in the instance_XXX
+ M depends: dict with task_index(from depends_on) to task class
+ M params: same as extra[params] but with the resolved dependencies
+ M vim_interfaces: similar to extra[interfaces] but with VIM information. Stored at database in the instance_XXX but not at vim_actions
+ M vim_info: Detailed information of a vm,net from the VIM. Stored at database in the instance_XXX but not at vim_actions
+ MD error_msg: descriptive text upon an error.Stored also at database instance_XXX
+ MD created_at: task creation time
+ MD modified_at: last task update time. On refresh it contains when this task need to be refreshed
+
+"""
import threading
import time
import Queue
import logging
import vimconn
+import yaml
from db_base import db_base_Exception
+from lib_osm_openvim.ovim import ovimException
+__author__ = "Alfonso Tierno, Pablo Montes"
+__date__ = "$28-Sep-2017 12:07:15$"
# from logging import Logger
# import auxiliary_functions as af
-def is_task_id(id):
- return True if id[:5] == "TASK." else False
+def is_task_id(task_id):
+ return task_id.startswith("TASK-")
+
+
+class VimThreadException(Exception):
+ pass
+
+
+class VimThreadExceptionNotFound(VimThreadException):
+ pass
class vim_thread(threading.Thread):
+ REFRESH_BUILD = 5 # 5 seconds
+ REFRESH_ACTIVE = 60 # 1 minute
- def __init__(self, vimconn, task_lock, name=None, datacenter_name=None, datacenter_tenant_id=None, db=None, db_lock=None):
+ def __init__(self, myvimconn, task_lock, name=None, datacenter_name=None, datacenter_tenant_id=None,
+ db=None, db_lock=None, ovim=None):
"""Init a thread.
Arguments:
'id' number of thead
'host','user': host ip or name to manage and user
'db', 'db_lock': database class and lock to use it in exclusion
"""
- self.tasksResult = {}
- """ It will contain a dictionary with
- task_id:
- status: enqueued,done,error,deleted,processing
- result: VIM result,
- """
threading.Thread.__init__(self)
- self.vim = vimconn
+ if isinstance(myvimconn, vimconn.vimconnException):
+ self.vim = None
+ self.error_status = "Error accesing to VIM: {}".format(myvimconn)
+ else:
+ self.vim = myvimconn
+ self.error_status = None
self.datacenter_name = datacenter_name
self.datacenter_tenant_id = datacenter_tenant_id
+ self.ovim = ovim
if not name:
self.name = vimconn["id"] + "." + vimconn["config"]["datacenter_tenant_id"]
else:
self.task_lock = task_lock
self.task_queue = Queue.Queue(2000)
+ self.refresh_tasks = []
+ """Contains time ordered task list for refreshing the status of VIM VMs and nets"""
+
+ self.pending_tasks = []
+ """Contains time ordered task list for creation, deletion of VIM VMs and nets"""
+
+ self.grouped_tasks = {}
+ """ It contains all the creation/deletion pending tasks grouped by its concrete vm, net, etc
+ <item><item_id>:
+ - <task1> # e.g. CREATE task
+ <task2> # e.g. DELETE task
+ """
+
+ def _reload_vim_actions(self):
+ """
+ Read actions from database and reload them at memory. Fill self.refresh_list, pending_list, vim_actions
+ :return: None
+ """
+ action_completed = False
+ task_list = []
+ old_action_key = None
+
+ with self.db_lock:
+ vim_actions = self.db.get_rows(FROM="vim_actions",
+ WHERE={"datacenter_vim_id": self.datacenter_tenant_id },
+ ORDER_BY=("item", "item_id", "created_at",))
+ for task in vim_actions:
+ item = task["item"]
+ item_id = task["item_id"]
+ action_key = item + item_id
+ if old_action_key != action_key:
+ if not action_completed and task_list:
+ # This will fill needed task parameters into memory, and insert the task if needed in
+ # self.pending_tasks or self.refresh_tasks
+ self._insert_pending_tasks(task_list)
+ task_list = []
+ old_action_key = action_key
+ action_completed = False
+ elif action_completed:
+ continue
+
+ if task["status"] == "SCHEDULED" or task["action"] == "CREATE" or task["action"] == "FIND":
+ task_list.append(task)
+ elif task["action"] == "DELETE":
+ # action completed because deleted and status is not SCHEDULED. Not needed anything
+ action_completed = True
+
+ # Last actions group need to be inserted too
+ if not action_completed and task_list:
+ self._insert_pending_tasks(task_list)
+
+ def _refres_elements(self):
+ """Call VIM to get VMs and networks status until 10 elements"""
+ now = time.time()
+ nb_processed = 0
+ vm_to_refresh_list = []
+ net_to_refresh_list = []
+ vm_to_refresh_dict = {}
+ net_to_refresh_dict = {}
+ items_to_refresh = 0
+ while self.refresh_tasks:
+ task = self.refresh_tasks[0]
+ with self.task_lock:
+ if task['status'] == 'SUPERSEDED':
+ self.refresh_tasks.pop(0)
+ continue
+ if task['modified_at'] > now:
+ break
+ # task["status"] = "processing"
+ nb_processed += 1
+ self.refresh_tasks.pop(0)
+ if task["item"] == 'instance_vms':
+ vm_to_refresh_list.append(task["vim_id"])
+ vm_to_refresh_dict[task["vim_id"]] = task
+ elif task["item"] == 'instance_nets':
+ net_to_refresh_list.append(task["vim_id"])
+ net_to_refresh_dict[task["vim_id"]] = task
+ else:
+ error_text = "unknown task {}".format(task["item"])
+ self.logger.error(error_text)
+ items_to_refresh += 1
+ if items_to_refresh == 10:
+ break
+
+ if vm_to_refresh_list:
+ try:
+ now = time.time()
+ vim_dict = self.vim.refresh_vms_status(vm_to_refresh_list)
+ for vim_id, vim_info in vim_dict.items():
+ # look for task
+ task_need_update = False
+ task = vm_to_refresh_dict[vim_id]
+ self.logger.debug("get-vm vm_id=%s result=%s", task["vim_id"], str(vim_info))
+
+ # update database
+ task_vim_info = task.get("vim_info")
+ task_error_msg = task.get("error_msg")
+ task_vim_status = task["extra"].get("vim_status")
+ if vim_info.get("error_msg"):
+ vim_info["error_msg"] = self._format_vim_error_msg(vim_info["error_msg"])
+ if task_vim_status != vim_info["status"] or task_error_msg != vim_info.get("error_msg") or \
+ task_vim_info != vim_info.get("vim_info"):
+ with self.db_lock:
+ temp_dict = {"status": vim_info["status"],
+ "error_msg": vim_info.get("error_msg"),
+ "vim_info": vim_info.get("vim_info")}
+ self.db.update_rows('instance_vms', UPDATE=temp_dict, WHERE={"uuid": task["item_id"]})
+ task["extra"]["vim_status"] = vim_info["status"]
+ task["error_msg"] = vim_info.get("error_msg")
+ task["vim_info"] = vim_info.get("vim_info")
+ task_need_update = True
+ for interface in vim_info.get("interfaces", ()):
+ vim_interface_id = interface["vim_interface_id"]
+ if vim_interface_id not in task["extra"]["interfaces"]:
+ self.logger.critical("Interface not found {} on task info {}".format(
+ vim_interface_id, task["extra"]["interfaces"]), exc_info=True)
+ continue
+ task_interface = task["extra"]["interfaces"][vim_interface_id]
+ task_vim_interface = task["vim_interfaces"].get(vim_interface_id)
+ if task_vim_interface != interface:
+ # delete old port
+ if task_interface.get("sdn_port_id"):
+ try:
+ with self.db_lock:
+ self.ovim.delete_port(task_interface["sdn_port_id"])
+ task_interface["sdn_port_id"] = None
+ task_need_update = True
+ except ovimException as e:
+ self.logger.error("ovimException deleting external_port={} ".format(
+ task_interface["sdn_port_id"]) + str(e), exc_info=True)
+ # TODO Set error_msg at instance_nets
+
+ # Create SDN port
+ sdn_net_id = task_interface.get("sdn_net_id")
+ if sdn_net_id and interface.get("compute_node") and interface.get("pci"):
+ sdn_port_name = sdn_net_id + "." + task["vim_id"]
+ sdn_port_name = sdn_port_name[:63]
+ try:
+ with self.db_lock:
+ sdn_port_id = self.ovim.new_external_port(
+ {"compute_node": interface["compute_node"],
+ "pci": interface["pci"],
+ "vlan": interface.get("vlan"),
+ "net_id": sdn_net_id,
+ "region": self.vim["config"]["datacenter_id"],
+ "name": sdn_port_name,
+ "mac": interface.get("mac_address")})
+ task_interface["sdn_port_id"] = sdn_port_id
+ task_need_update = True
+ except (ovimException, Exception) as e:
+ self.logger.error(
+ "ovimException creating new_external_port compute_node={} "
+ "pci={} vlan={} ".format(
+ interface["compute_node"],
+ interface["pci"],
+ interface.get("vlan")) + str(e),
+ exc_info=True)
+ # TODO Set error_msg at instance_nets
+ with self.db_lock:
+ self.db.update_rows(
+ 'instance_interfaces',
+ UPDATE={"mac_address": interface.get("mac_address"),
+ "ip_address": interface.get("ip_address"),
+ "vim_info": interface.get("vim_info"),
+ "sdn_port_id": task_interface.get("sdn_port_id"),
+ "compute_node": interface.get("compute_node"),
+ "pci": interface.get("pci"),
+ "vlan": interface.get("vlan"),
+ },
+ WHERE={'uuid': task_interface["iface_id"]})
+ task["vim_interfaces"][vim_interface_id] = interface
+ if task_need_update:
+ with self.db_lock:
+ self.db.update_rows(
+ 'vim_actions',
+ UPDATE={"extra": yaml.safe_dump(task["extra"], default_flow_style=True, width=256),
+ "error_msg": task.get("error_msg"), "modified_at": now},
+ WHERE={'instance_action_id': task['instance_action_id'],
+ 'task_index': task['task_index']})
+ if task["extra"].get("vim_status") == "BUILD":
+ self._insert_refresh(task, now + self.REFRESH_BUILD)
+ else:
+ self._insert_refresh(task, now + self.REFRESH_ACTIVE)
+ except vimconn.vimconnException as e:
+ self.logger.error("vimconnException Exception when trying to refresh vms " + str(e))
+ self._insert_refresh(task, now + self.REFRESH_ACTIVE)
+
+ if net_to_refresh_list:
+ try:
+ now = time.time()
+ vim_dict = self.vim.refresh_nets_status(net_to_refresh_list)
+ for vim_id, vim_info in vim_dict.items():
+ # look for task
+ task = net_to_refresh_dict[vim_id]
+ self.logger.debug("get-net net_id=%s result=%s", task["vim_id"], str(vim_info))
+
+ task_vim_info = task.get("vim_info")
+ task_vim_status = task["extra"].get("vim_status")
+ task_error_msg = task.get("error_msg")
+ task_sdn_net_id = task["extra"].get("sdn_net_id")
+
+ # get ovim status
+ if task_sdn_net_id:
+ try:
+ with self.db_lock:
+ sdn_net = self.ovim.show_network(task_sdn_net_id)
+ if sdn_net["status"] == "ERROR":
+ if not vim_info.get("error_msg"):
+ vim_info["error_msg"] = sdn_net["error_msg"]
+ else:
+ vim_info["error_msg"] = "VIM_ERROR: {} && SDN_ERROR: {}".format(
+ self._format_vim_error_msg(vim_info["error_msg"], 1024//2-14),
+ self._format_vim_error_msg(sdn_net["error_msg"], 1024//2-14))
+ if vim_info["status"] == "VIM_ERROR":
+ vim_info["status"] = "VIM_SDN_ERROR"
+ else:
+ vim_info["status"] = "SDN_ERROR"
+
+ except (ovimException, Exception) as e:
+ self.logger.error(
+ "ovimException getting network infor snd_net_id={}".format(task_sdn_net_id),
+ exc_info=True)
+ # TODO Set error_msg at instance_nets
+
+ # update database
+ if vim_info.get("error_msg"):
+ vim_info["error_msg"] = self._format_vim_error_msg(vim_info["error_msg"])
+ if task_vim_status != vim_info["status"] or task_error_msg != vim_info.get("error_msg") or \
+ task_vim_info != vim_info["vim_info"]:
+ task["extra"]["vim_status"] = vim_info["status"]
+ task["error_msg"] = vim_info.get("error_msg")
+ task["vim_info"] = vim_info["vim_info"]
+ temp_dict = {"status": vim_info["status"],
+ "error_msg": vim_info.get("error_msg"),
+ "vim_info": vim_info["vim_info"]}
+ with self.db_lock:
+ self.db.update_rows('instance_nets', UPDATE=temp_dict, WHERE={"uuid": task["item_id"]})
+ self.db.update_rows(
+ 'vim_actions',
+ UPDATE={"extra": yaml.safe_dump(task["extra"], default_flow_style=True, width=256),
+ "error_msg": task.get("error_msg"), "modified_at": now},
+ WHERE={'instance_action_id': task['instance_action_id'],
+ 'task_index': task['task_index']})
+ if task["extra"].get("vim_status") == "BUILD":
+ self._insert_refresh(task, now + self.REFRESH_BUILD)
+ else:
+ self._insert_refresh(task, now + self.REFRESH_ACTIVE)
+ except vimconn.vimconnException as e:
+ self.logger.error("vimconnException Exception when trying to refresh nets " + str(e))
+ self._insert_refresh(task, now + self.REFRESH_ACTIVE)
+
+ return nb_processed
+
+ def _insert_refresh(self, task, threshold_time=None):
+ """Insert a task at list of refreshing elements. The refreshing list is ordered by threshold_time (task['modified_at']
+ It is assumed that this is called inside this thread
+ """
+ if not self.vim:
+ return
+ if not threshold_time:
+ threshold_time = time.time()
+ task["modified_at"] = threshold_time
+ task_name = task["item"][9:] + "-" + task["action"]
+ task_id = task["instance_action_id"] + "." + str(task["task_index"])
+ for index in range(0, len(self.refresh_tasks)):
+ if self.refresh_tasks[index]["modified_at"] > threshold_time:
+ self.refresh_tasks.insert(index, task)
+ break
+ else:
+ index = len(self.refresh_tasks)
+ self.refresh_tasks.append(task)
+ self.logger.debug("new refresh task={} name={}, modified_at={} index={}".format(
+ task_id, task_name, task["modified_at"], index))
+
+ def _remove_refresh(self, task_name, vim_id):
+ """Remove a task with this name and vim_id from the list of refreshing elements.
+ It is assumed that this is called inside this thread outside _refres_elements method
+ Return True if self.refresh_list is modified, task is found
+ Return False if not found
+ """
+ index_to_delete = None
+ for index in range(0, len(self.refresh_tasks)):
+ if self.refresh_tasks[index]["name"] == task_name and self.refresh_tasks[index]["vim_id"] == vim_id:
+ index_to_delete = index
+ break
+ else:
+ return False
+ if index_to_delete != None:
+ del self.refresh_tasks[index_to_delete]
+ return True
+
+ def _proccess_pending_tasks(self):
+ nb_created = 0
+ nb_processed = 0
+ while self.pending_tasks:
+ task = self.pending_tasks.pop(0)
+ nb_processed += 1
+ if task["status"] == "SUPERSEDED":
+ # not needed to do anything but update database with the new status
+ result = True
+ database_update = None
+ elif not self.vim:
+ task["status"] == "ERROR"
+ task["error_msg"] = self.error_status
+ result = False
+ database_update = {"status": "VIM_ERROR", "error_msg": task["error_msg"]}
+ elif task["item"] == 'instance_vms':
+ if task["action"] == "CREATE":
+ result, database_update = self.new_vm(task)
+ nb_created += 1
+ elif task["action"] == "DELETE":
+ result, database_update = self.del_vm(task)
+ else:
+ raise vimconn.vimconnException(self.name + "unknown task action {}".format(task["action"]))
+ elif task["item"] == 'instance_nets':
+ if task["action"] == "CREATE":
+ result, database_update = self.new_net(task)
+ nb_created += 1
+ elif task["action"] == "DELETE":
+ result, database_update = self.del_net(task)
+ elif task["action"] == "FIND":
+ result, database_update = self.get_net(task)
+ else:
+ raise vimconn.vimconnException(self.name + "unknown task action {}".format(task["action"]))
+ else:
+ raise vimconn.vimconnException(self.name + "unknown task item {}".format(task["item"]))
+ # TODO
+
+ if task["status"] == "SCHEDULED":
+ # This is because a depend task is not completed. Moved to the end. NOT USED YET
+ if task["extra"].get("tries", 0) > 3:
+ task["status"] == "FAILED"
+ else:
+ task["extra"]["tries"] = task["extra"].get("tries", 0) + 1
+ self.pending_tasks.append(task)
+ elif task["action"] == "DELETE":
+ action_key = task["item"] + task["item_id"]
+ del self.grouped_tasks[action_key]
+ elif task["action"] in ("CREATE", "FIND") and task["status"] in ("DONE", "BUILD"):
+ self._insert_refresh(task)
+
+ self.logger.debug("vim_action id={}.{} item={} action={} result={}:{} params={}".format(
+ task["instance_action_id"], task["task_index"], task["item"], task["action"],
+ task["status"], task["vim_id"] if task["status"] == "DONE" else task.get("error_msg"),
+ task["params"]))
+ try:
+ now = time.time()
+ with self.db_lock:
+ self.db.update_rows(
+ table="vim_actions",
+ UPDATE={"status": task["status"], "vim_id": task["vim_id"], "modified_at": now,
+ "error_msg": task["error_msg"],
+ "extra": yaml.safe_dump(task["extra"], default_flow_style=True, width=256)},
+ WHERE={"instance_action_id": task["instance_action_id"], "task_index": task["task_index"]})
+ if result is not None:
+ self.db.update_rows(
+ table="instance_actions",
+ UPDATE={("number_done" if result else "number_failed"): {"INCREMENT": 1},
+ "modified_at": now},
+ WHERE={"uuid": task["instance_action_id"]})
+ if database_update:
+ self.db.update_rows(table=task["item"],
+ UPDATE=database_update,
+ WHERE={"uuid": task["item_id"]})
+ except db_base_Exception as e:
+ self.logger.error("Error updating database %s", str(e), exc_info=True)
+
+ if nb_created == 10:
+ break
+ return nb_processed
+
+ def _insert_pending_tasks(self, vim_actions_list):
+ now = time.time()
+ for task in vim_actions_list:
+ if task["datacenter_vim_id"] != self.datacenter_tenant_id:
+ continue
+ item = task["item"]
+ item_id = task["item_id"]
+ action_key = item + item_id
+ if action_key not in self.grouped_tasks:
+ self.grouped_tasks[action_key] = []
+ task["params"] = None
+ task["depends"] = {}
+ if task["extra"]:
+ extra = yaml.load(task["extra"])
+ task["extra"] = extra
+ task["params"] = extra.get("params")
+ depends_on_list = extra.get("depends_on")
+ if depends_on_list:
+ for index in depends_on_list:
+ if index < len(vim_actions_list) and vim_actions_list[index]["task_index"] == index and\
+ vim_actions_list[index]["instance_action_id"] == task["instance_action_id"]:
+ task["depends"]["TASK-" + str(index)] = vim_actions_list[index]
+ if extra.get("interfaces"):
+ task["vim_interfaces"] = {}
+ else:
+ task["extra"] = {}
+ if "error_msg" not in task:
+ task["error_msg"] = None
+ if "vim_id" not in task:
+ task["vim_id"] = None
+
+ if task["action"] == "DELETE":
+ need_delete_action = False
+ for to_supersede in self.grouped_tasks.get(action_key, ()):
+ if to_supersede["action"] == "FIND" and to_supersede.get("vim_id"):
+ task["vim_id"] = to_supersede["vim_id"]
+ if to_supersede["action"] == "CREATE" and to_supersede.get("vim_id") and \
+ to_supersede["extra"].get("created", True):
+ need_delete_action = True
+ task["vim_id"] = to_supersede["vim_id"]
+ if to_supersede["extra"].get("sdn_vim_id"):
+ task["extra"]["sdn_vim_id"] = to_supersede["extra"]["sdn_vim_id"]
+ if to_supersede["extra"].get("interfaces"):
+ task["extra"]["interfaces"] = to_supersede["extra"]["interfaces"]
+ # Mark task as SUPERSEDED.
+ # If task is in self.pending_tasks, it will be removed and database will be update
+ # If task is in self.refresh_tasks, it will be removed
+ to_supersede["status"] = "SUPERSEDED"
+ if not need_delete_action:
+ task["status"] = "SUPERSEDED"
+
+ self.grouped_tasks[action_key].append(task)
+ self.pending_tasks.append(task)
+ elif task["status"] == "SCHEDULED":
+ self.grouped_tasks[action_key].append(task)
+ self.pending_tasks.append(task)
+ elif task["action"] in ("CREATE", "FIND"):
+ self.grouped_tasks[action_key].append(task)
+ if task["status"] in ("DONE", "BUILD"):
+ self._insert_refresh(task)
+ # TODO add VM reset, get console, etc...
+ else:
+ raise vimconn.vimconnException(self.name + "unknown vim_action action {}".format(task["action"]))
+
def insert_task(self, task):
try:
self.task_queue.put(task, False)
- return task["id"]
+ return None
except Queue.Full:
raise vimconn.vimconnException(self.name + ": timeout inserting a task")
def del_task(self, task):
with self.task_lock:
- if task["status"] == "enqueued":
- task["status"] == "deleted"
+ if task["status"] == "SCHEDULED":
+ task["status"] == "SUPERSEDED"
return True
else: # task["status"] == "processing"
self.task_lock.release()
def run(self):
self.logger.debug("Starting")
while True:
- #TODO reload service
+ self._reload_vim_actions()
+ reload_thread = False
while True:
- if not self.task_queue.empty():
- task = self.task_queue.get()
- self.task_lock.acquire()
- if task["status"] == "deleted":
- self.task_lock.release()
- continue
- task["status"] == "processing"
- self.task_lock.release()
- else:
- now=time.time()
- time.sleep(1)
- continue
- self.logger.debug("processing task id={} name={} params={}".format(task["id"], task["name"],
- str(task["params"])))
- if task["name"] == 'exit' or task["name"] == 'reload':
- result, content = self.terminate(task)
- elif task["name"] == 'new-vm':
- result, content = self.new_vm(task)
- elif task["name"] == 'del-vm':
- result, content = self.del_vm(task)
- elif task["name"] == 'new-net':
- result, content = self.new_net(task)
- elif task["name"] == 'del-net':
- result, content = self.del_net(task)
- else:
- error_text = "unknown task {}".format(task["name"])
- self.logger.error(error_text)
- result = False
- content = error_text
-
- with self.task_lock:
- task["status"] = "done" if result else "error"
- task["result"] = content
- self.task_queue.task_done()
-
- if task["name"] == 'exit':
- return 0
- elif task["name"] == 'reload':
- break
+ try:
+ while not self.task_queue.empty():
+ task = self.task_queue.get()
+ if isinstance(task, list):
+ self._insert_pending_tasks(task)
+ elif isinstance(task, str):
+ if task == 'exit':
+ return 0
+ elif task == 'reload':
+ reload_thread = True
+ break
+ self.task_queue.task_done()
+ if reload_thread:
+ break
+ nb_processed = self._proccess_pending_tasks()
+ nb_processed += self._refres_elements()
+ if not nb_processed:
+ time.sleep(1)
+
+ except Exception as e:
+ self.logger.critical("Unexpected exception at run: " + str(e), exc_info=True)
self.logger.debug("Finishing")
def terminate(self, task):
return True, None
- def new_net(self, task):
- try:
- task_id = task["id"]
- params = task["params"]
- net_id = self.vim.new_network(*params)
- with self.db_lock:
- self.db.update_rows("instance_nets", UPDATE={"vim_net_id": net_id}, WHERE={"vim_net_id": task_id})
- return True, net_id
- except db_base_Exception as e:
- self.logger.error("Error updating database %s", str(e))
- return True, net_id
- except vimconn.vimconnException as e:
- return False, str(e)
+ def _look_for_task(self, instance_action_id, task_id):
+ task_index = task_id.split("-")[-1]
+ with self.db_lock:
+ tasks = self.db.get_rows(FROM="vim_actions", WHERE={"instance_action_id": instance_action_id,
+ "task_index": task_index})
+ if not tasks:
+ return None
+ task = tasks[0]
+ task["params"] = None
+ task["depends"] = {}
+ if task["extra"]:
+ extra = yaml.load(task["extra"])
+ task["extra"] = extra
+ task["params"] = extra.get("params")
+ if extra.get("interfaces"):
+ task["vim_interfaces"] = {}
+ else:
+ task["extra"] = {}
+ return task
+
+ def _format_vim_error_msg(self, error_text, max_length=1024):
+ if error_text and len(error_text) >= max_length:
+ return error_text[:max_length//2-3] + " ... " + error_text[-max_length//2+3:]
+ return error_text
def new_vm(self, task):
try:
params = task["params"]
- task_id = task["id"]
+ task_id = task["instance_action_id"] + "." + str(task["task_index"])
depends = task.get("depends")
net_list = params[5]
+ error_text = ""
for net in net_list:
- if is_task_id(net["net_id"]): # change task_id into network_id
- try:
+ if "net_id" in net and is_task_id(net["net_id"]): # change task_id into network_id
+ if net["net_id"] in depends:
task_net = depends[net["net_id"]]
- with self.task_lock:
- if task_net["status"] == "error":
- return False, "Cannot create VM because depends on a network that cannot be created: " + \
- str(task_net["result"])
- elif task_net["status"] == "enqueued" or task_net["status"] == "processing":
- return False, "Cannot create VM because depends on a network still not created"
- network_id = task_net["result"]
- net["net_id"] = network_id
- except Exception as e:
- return False, "Error trying to map from task_id={} to task result: {}".format(net["net_id"],
- str(e))
- vm_id = self.vim.new_vminstance(*params)
- with self.db_lock:
- self.db.update_rows("instance_vms", UPDATE={"vim_vm_id": vm_id}, WHERE={"vim_vm_id": task_id})
- return True, vm_id
- except db_base_Exception as e:
- self.logger.error("Error updtaing database %s", str(e))
- return True, vm_id
- except vimconn.vimconnException as e:
- return False, str(e)
+ else:
+ task_net = self._look_for_task(task["instance_action_id"], net["net_id"])
+ if not task_net:
+ raise VimThreadException(
+ "Error trying to get depending task from task_index={}".format(net["net_id"]))
+ network_id = task_net.get("vim_id")
+ if not network_id:
+ raise VimThreadException(
+ "Cannot create VM because depends on a network not created or found: " +
+ str(task_net["error_msg"]))
+ net["net_id"] = network_id
+ vim_vm_id = self.vim.new_vminstance(*params)
+
+ # fill task_interfaces. Look for snd_net_id at database for each interface
+ task_interfaces = {}
+ for iface in net_list:
+ task_interfaces[iface["vim_id"]] = {"iface_id": iface["uuid"]}
+ with self.db_lock:
+ result = self.db.get_rows(SELECT=('sdn_net_id',),
+ FROM='instance_nets as ine join instance_interfaces as ii on ii.instance_net_id=ine.uuid',
+ WHERE={'ii.uuid': iface["uuid"]})
+ if result:
+ task_interfaces[iface["vim_id"]]["sdn_net_id"] = result[0]['sdn_net_id']
+ else:
+ self.logger.critical("Error creating VM, task=%s Network {} not found at DB", task_id,
+ iface["uuid"], exc_info=True)
+
+ task["vim_info"] = {}
+ task["vim_interfaces"] = {}
+ task["extra"]["interfaces"] = task_interfaces
+ task["extra"]["created"] = True
+ task["error_msg"] = None
+ task["status"] = "DONE"
+ task["vim_id"] = vim_vm_id
+ instance_element_update = {"status": "BUILD", "vim_vm_id": vim_vm_id, "error_msg": None}
+ return True, instance_element_update
+
+ except (vimconn.vimconnException, VimThreadException) as e:
+ self.logger.error("Error creating VM, task=%s: %s", task_id, str(e))
+ error_text = self._format_vim_error_msg(str(e))
+ task["error_msg"] = error_text
+ task["status"] = "FAILED"
+ task["vim_id"] = None
+ instance_element_update = {"status": "VIM_ERROR", "vim_vm_id": None, "error_msg": error_text}
+ return False, instance_element_update
def del_vm(self, task):
- vm_id = task["params"]
- if is_task_id(vm_id):
- try:
- task_create = task["depends"][vm_id]
- with self.task_lock:
- if task_create["status"] == "error":
- return True, "VM was not created. It has error: " + str(task_create["result"])
- elif task_create["status"] == "enqueued" or task_create["status"] == "processing":
- return False, "Cannot delete VM because still creating"
- vm_id = task_create["result"]
- except Exception as e:
- return False, "Error trying to get task_id='{}':".format(vm_id, str(e))
+ vm_vim_id = task["vim_id"]
+ interfaces = task["extra"].get("interfaces", ())
try:
- return True, self.vim.delete_vminstance(vm_id)
+ for iface in interfaces.values():
+ if iface.get("sdn_port_id"):
+ try:
+ with self.db_lock:
+ self.ovim.delete_port(iface["sdn_port_id"])
+ except ovimException as e:
+ self.logger.error("ovimException deleting external_port={} at VM vim_id={} deletion ".format(
+ iface["sdn_port_id"], vm_vim_id) + str(e), exc_info=True)
+ # TODO Set error_msg at instance_nets
+
+ self.vim.delete_vminstance(vm_vim_id)
+ task["status"] = "DONE"
+ task["error_msg"] = None
+ return True, None
+
except vimconn.vimconnException as e:
- return False, str(e)
+ task["error_msg"] = self._format_vim_error_msg(str(e))
+ if isinstance(e, vimconn.vimconnNotFoundException):
+ # If not found mark as Done and fill error_msg
+ task["status"] = "DONE"
+ return True, None
+ task["status"] = "FAILED"
+ return False, None
- def del_net(self, task):
- net_id = task["params"]
- if is_task_id(net_id):
- try:
- task_create = task["depends"][net_id]
- with self.task_lock:
- if task_create["status"] == "error":
- return True, "net was not created. It has error: " + str(task_create["result"])
- elif task_create["status"] == "enqueued" or task_create["status"] == "processing":
- return False, "Cannot delete net because still creating"
- net_id = task_create["result"]
- except Exception as e:
- return False, "Error trying to get task_id='{}':".format(net_id, str(e))
+ def _get_net_internal(self, task, filter_param):
+ vim_nets = self.vim.get_network_list(filter_param)
+ if not vim_nets:
+ raise VimThreadExceptionNotFound("Network not found with this criteria: '{}'".format(filter))
+ elif len(vim_nets) > 1:
+ raise VimThreadException("More than one network found with this criteria: '{}'".format(filter))
+ vim_net_id = vim_nets[0]["id"]
+
+ # Discover if this network is managed by a sdn controller
+ sdn_net_id = None
+ with self.db_lock:
+ result = self.db.get_rows(SELECT=('sdn_net_id',), FROM='instance_nets',
+ WHERE={'vim_net_id': vim_net_id, 'instance_scenario_id': None,
+ 'datacenter_tenant_id': self.datacenter_tenant_id})
+ if result:
+ sdn_net_id = result[0]['sdn_net_id']
+
+ task["status"] = "DONE"
+ task["extra"]["vim_info"] = {}
+ task["extra"]["created"] = False
+ task["extra"]["sdn_net_id"] = sdn_net_id
+ task["error_msg"] = None
+ task["vim_id"] = vim_net_id
+ instance_element_update = {"vim_net_id": vim_net_id, "created": False, "status": "BUILD",
+ "error_msg": None}
+ return instance_element_update
+
+ def get_net(self, task):
try:
- return True, self.vim.delete_network(net_id)
- except vimconn.vimconnException as e:
- return False, str(e)
+ task_id = task["instance_action_id"] + "." + str(task["task_index"])
+ params = task["params"]
+ filter_param = params[0]
+ instance_element_update = self._get_net_internal(task, filter_param)
+ return True, instance_element_update
+ except (vimconn.vimconnException, VimThreadException) as e:
+ self.logger.error("Error looking for NET, task=%s: %s", str(task_id), str(e))
+ task["status"] = "FAILED"
+ task["vim_id"] = None
+ task["error_msg"] = self._format_vim_error_msg(str(e))
+ instance_element_update = {"vim_net_id": None, "status": "VIM_ERROR",
+ "error_msg": task["error_msg"]}
+ return False, instance_element_update
+ def new_net(self, task):
+ try:
+ task_id = task["instance_action_id"] + "." + str(task["task_index"])
+ # FIND
+ if task["extra"].get("find"):
+ action_text = "finding"
+ filter_param = task["extra"]["find"][0]
+ try:
+ instance_element_update = self._get_net_internal(task, filter_param)
+ return True, instance_element_update
+ except VimThreadExceptionNotFound:
+ pass
+ # CREATE
+ params = task["params"]
+ action_text = "creating"
+ vim_net_id = self.vim.new_network(*params)
+
+ net_name = params[0]
+ net_type = params[1]
+
+ sdn_net_id = None
+ sdn_controller = self.vim.config.get('sdn-controller')
+ if sdn_controller and (net_type == "data" or net_type == "ptp"):
+ network = {"name": net_name, "type": net_type, "region": self.vim["config"]["datacenter_id"]}
+
+ vim_net = self.vim.get_network(vim_net_id)
+ if vim_net.get('encapsulation') != 'vlan':
+ raise vimconn.vimconnException(
+ "net '{}' defined as type '{}' has not vlan encapsulation '{}'".format(
+ net_name, net_type, vim_net['encapsulation']))
+ network["vlan"] = vim_net.get('segmentation_id')
+ try:
+ with self.db_lock:
+ sdn_net_id = self.ovim.new_network(network)
+ except (ovimException, Exception) as e:
+ self.logger.error("task=%s cannot create SDN network vim_net_id=%s input='%s' ovimException='%s'",
+ str(task_id), vim_net_id, str(network), str(e))
+ task["status"] = "DONE"
+ task["extra"]["vim_info"] = {}
+ task["extra"]["sdn_net_id"] = sdn_net_id
+ task["extra"]["created"] = True
+ task["error_msg"] = None
+ task["vim_id"] = vim_net_id
+ instance_element_update = {"vim_net_id": vim_net_id, "sdn_net_id": sdn_net_id, "status": "BUILD",
+ "created": True, "error_msg": None}
+ return True, instance_element_update
+ except vimconn.vimconnException as e:
+ self.logger.error("Error {} NET, task=%s: %s", action_text, str(task_id), str(e))
+ task["status"] = "FAILED"
+ task["vim_id"] = None
+ task["error_msg"] = self._format_vim_error_msg(str(e))
+ instance_element_update = {"vim_net_id": None, "sdn_net_id": None, "status": "VIM_ERROR",
+ "error_msg": task["error_msg"]}
+ return False, instance_element_update
+
+ def del_net(self, task):
+ net_vim_id = task["vim_id"]
+ sdn_net_id = task["extra"].get("sdn_net_id")
+ try:
+ if sdn_net_id:
+ # Delete any attached port to this sdn network. There can be ports associated to this network in case
+ # it was manually done using 'openmano vim-net-sdn-attach'
+ with self.db_lock:
+ port_list = self.ovim.get_ports(columns={'uuid'},
+ filter={'name': 'external_port', 'net_id': sdn_net_id})
+ for port in port_list:
+ self.ovim.delete_port(port['uuid'])
+ self.ovim.delete_network(sdn_net_id)
+ self.vim.delete_network(net_vim_id)
+ task["status"] = "DONE"
+ task["error_msg"] = None
+ return True, None
+ except ovimException as e:
+ task["error_msg"] = self._format_vim_error_msg("ovimException obtaining and deleting external "
+ "ports for net {}: {}".format(sdn_net_id, str(e)))
+ except vimconn.vimconnException as e:
+ task["error_msg"] = self._format_vim_error_msg(str(e))
+ if isinstance(e, vimconn.vimconnNotFoundException):
+ # If not found mark as Done and fill error_msg
+ task["status"] = "DONE"
+ return True, None
+ task["status"] = "FAILED"
+ return False, None
projects / osm / RO.git / blobdiff