capturing wim exceptions properly
[osm/RO.git] / osm_ro / vim_thread.py
index cbcd31f..02b3bcc 100644 (file)
@@ -1,7 +1,7 @@
 # -*- coding: utf-8 -*-
 
 ##
-# Copyright 2015 Telefónica Investigación y Desarrollo, S.A.U.
+# Copyright 2015 Telefonica Investigacion y Desarrollo, S.A.U.
 # This file is part of openvim
 # All Rights Reserved.
 #
@@ -23,7 +23,7 @@
 
 """"
 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 tasks are stored at database in table vim_wim_actions
 The task content is (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 together with the previous forms a unique key identifier
@@ -37,6 +37,7 @@ The task content is (M: stored at memory, D: stored at database):
             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 creation depends on a net creation
+                        can contain an int (single index on the same instance-action) or str (compete action ID)
             sdn_net_id: used for net.
             tries:
             interfaces: used for VMs. Each key is the uuid of the instance_interfaces entry at database
@@ -48,8 +49,8 @@ The task content is (M: stored at memory, D: stored at database):
             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
+    M   vim_interfaces: similar to extra[interfaces] but with VIM information. Stored at database in the instance_XXX but not at vim_wim_actions
+    M   vim_info:   Detailed information of a vm,net from the VIM. Stored at database in the instance_XXX but not at vim_wim_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
@@ -61,13 +62,27 @@ import time
 import Queue
 import logging
 import vimconn
+import vimconn_openvim
+import vimconn_aws
+import vimconn_opennebula
+import vimconn_openstack
+import vimconn_vmware
 import yaml
 from db_base import db_base_Exception
 from lib_osm_openvim.ovim import ovimException
+from copy import deepcopy
 
 __author__ = "Alfonso Tierno, Pablo Montes"
 __date__ = "$28-Sep-2017 12:07:15$"
 
+vim_module = {
+    "openvim": vimconn_openvim,
+    "aws": vimconn_aws,
+    "opennebula": vimconn_opennebula,
+    "openstack": vimconn_openstack,
+    "vmware": vimconn_vmware,
+}
+
 
 def is_task_id(task_id):
     return task_id.startswith("TASK-")
@@ -82,10 +97,10 @@ class VimThreadExceptionNotFound(VimThreadException):
 
 
 class vim_thread(threading.Thread):
-    REFRESH_BUILD = 5      # 5 seconds
-    REFRESH_ACTIVE = 60    # 1 minute
+    REFRESH_BUILD = 5  # 5 seconds
+    REFRESH_ACTIVE = 60  # 1 minute
 
-    def __init__(self, myvimconn, task_lock, name=None, datacenter_name=None, datacenter_tenant_id=None,
+    def __init__(self, task_lock, name=None, datacenter_name=None, datacenter_tenant_id=None,
                  db=None, db_lock=None, ovim=None):
         """Init a thread.
         Arguments:
@@ -95,12 +110,8 @@ class vim_thread(threading.Thread):
             'db', 'db_lock': database class and lock to use it in exclusion
         """
         threading.Thread.__init__(self)
-        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.vim = None
+        self.error_status = None
         self.datacenter_name = datacenter_name
         self.datacenter_tenant_id = datacenter_tenant_id
         self.ovim = ovim
@@ -108,8 +119,9 @@ class vim_thread(threading.Thread):
             self.name = vimconn["id"] + "." + vimconn["config"]["datacenter_tenant_id"]
         else:
             self.name = name
+        self.vim_persistent_info = {}
 
-        self.logger = logging.getLogger('openmano.vim.'+self.name)
+        self.logger = logging.getLogger('openmano.vim.' + self.name)
         self.db = db
         self.db_lock = db_lock
 
@@ -129,6 +141,42 @@ class vim_thread(threading.Thread):
                     <task2>  # e.g. DELETE task
         """
 
+    def get_vimconnector(self):
+        try:
+            from_ = "datacenter_tenants as dt join datacenters as d on dt.datacenter_id=d.uuid"
+            select_ = ('type', 'd.config as config', 'd.uuid as datacenter_id', 'vim_url', 'vim_url_admin',
+                       'd.name as datacenter_name', 'dt.uuid as datacenter_tenant_id',
+                       'dt.vim_tenant_name as vim_tenant_name', 'dt.vim_tenant_id as vim_tenant_id',
+                       'user', 'passwd', 'dt.config as dt_config')
+            where_ = {"dt.uuid": self.datacenter_tenant_id}
+            vims = self.db.get_rows(FROM=from_, SELECT=select_, WHERE=where_)
+            vim = vims[0]
+            vim_config = {}
+            if vim["config"]:
+                vim_config.update(yaml.load(vim["config"]))
+            if vim["dt_config"]:
+                vim_config.update(yaml.load(vim["dt_config"]))
+            vim_config['datacenter_tenant_id'] = vim.get('datacenter_tenant_id')
+            vim_config['datacenter_id'] = vim.get('datacenter_id')
+
+            # get port_mapping
+            with self.db_lock:
+                vim_config["wim_external_ports"] = self.ovim.get_of_port_mappings(
+                    db_filter={"region": vim_config['datacenter_id'], "pci": None})
+
+            self.vim = vim_module[vim["type"]].vimconnector(
+                uuid=vim['datacenter_id'], name=vim['datacenter_name'],
+                tenant_id=vim['vim_tenant_id'], tenant_name=vim['vim_tenant_name'],
+                url=vim['vim_url'], url_admin=vim['vim_url_admin'],
+                user=vim['user'], passwd=vim['passwd'],
+                config=vim_config, persistent_info=self.vim_persistent_info
+            )
+            self.error_status = None
+        except Exception as e:
+            self.logger.error("Cannot load vimconnector for vim_account {}: {}".format(self.datacenter_tenant_id, e))
+            self.vim = None
+            self.error_status = "Error loading vimconnector: {}".format(e)
+
     def _reload_vim_actions(self):
         """
         Read actions from database and reload them at memory. Fill self.refresh_list, pending_list, vim_actions
@@ -145,12 +193,11 @@ class vim_thread(threading.Thread):
             database_limit = 200
             while True:
                 # get 200 (database_limit) entries each time
-                with self.db_lock:
-                    vim_actions = self.db.get_rows(FROM="vim_actions",
-                                                   WHERE={"datacenter_vim_id": self.datacenter_tenant_id,
-                                                          "item_id>=": old_item_id},
-                                                   ORDER_BY=("item_id", "item", "created_at",),
-                                                   LIMIT=database_limit)
+                vim_actions = self.db.get_rows(FROM="vim_wim_actions",
+                                                WHERE={"datacenter_vim_id": self.datacenter_tenant_id,
+                                                        "item_id>=": old_item_id},
+                                                ORDER_BY=("item_id", "item", "created_at",),
+                                                LIMIT=database_limit)
                 for task in vim_actions:
                     item = task["item"]
                     item_id = task["item_id"]
@@ -223,11 +270,17 @@ class vim_thread(threading.Thread):
                 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
+                if task["vim_id"] not in vm_to_refresh_dict:
+                    vm_to_refresh_dict[task["vim_id"]] = [task]
+                    vm_to_refresh_list.append(task["vim_id"])
+                else:
+                    vm_to_refresh_dict[task["vim_id"]].append(task)
             elif task["item"] == 'instance_nets':
-                net_to_refresh_list.append(task["vim_id"])
-                net_to_refresh_dict[task["vim_id"]] = task
+                if task["vim_id"] not in net_to_refresh_dict:
+                    net_to_refresh_dict[task["vim_id"]] = [task]
+                    net_to_refresh_list.append(task["vim_id"])
+                else:
+                    net_to_refresh_dict[task["vim_id"]].append(task)
             else:
                 task_id = task["instance_action_id"] + "." + str(task["task_index"])
                 self.logger.critical("task={}: unknown task {}".format(task_id, task["item"]), exc_info=True)
@@ -247,111 +300,110 @@ class vim_thread(threading.Thread):
                     vim_dict[vim_id] = {"status": "VIM_ERROR", "error_msg": str(e)}
 
             for vim_id, vim_info in vim_dict.items():
+
                 # look for task
-                task_need_update = False
-                task = vm_to_refresh_dict[vim_id]
-                task_id = task["instance_action_id"] + "." + str(task["task_index"])
-                self.logger.debug("task={} get-VM: vim_vm_id={} result={}".format(task_id, task["vim_id"], vim_info))
-
-                # check and update interfaces
-                task_warning_msg = ""
-                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("task={} get-VM: Interface not found {} on task info {}".format(
-                            task_id, 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:
-                                error_text = "ovimException deleting external_port={}: {}".format(
-                                    task_interface["sdn_port_id"], e)
-                                self.logger.error("task={} get-VM: {}".format(task_id, error_text), exc_info=True)
-                                task_warning_msg += error_text
-                                # TODO Set error_msg at instance_nets instead of instance VMs
-
-                        # 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:
-                                error_text = "ovimException creating new_external_port compute_node={}"\
-                                             " pci={} vlan={} {}".format(
-                                                interface["compute_node"],
-                                                interface["pci"],
-                                                interface.get("vlan"), e)
-                                self.logger.error("task={} get-VM: {}".format(task_id, error_text), exc_info=True)
-                                task_warning_msg += error_text
-                                # TODO Set error_msg at instance_nets instead of instance VMs
+                for task in vm_to_refresh_dict[vim_id]:
+                    task_need_update = False
+                    task_id = task["instance_action_id"] + "." + str(task["task_index"])
+                    self.logger.debug("task={} get-VM: vim_vm_id={} result={}".format(task_id, task["vim_id"], vim_info))
+
+                    # check and update interfaces
+                    task_warning_msg = ""
+                    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("task={} get-VM: Interface not found {} on task info {}".format(
+                                task_id, 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"], idempotent=True)
+                                        task_interface["sdn_port_id"] = None
+                                        task_need_update = True
+                                except ovimException as e:
+                                    error_text = "ovimException deleting external_port={}: {}".format(
+                                        task_interface["sdn_port_id"], e)
+                                    self.logger.error("task={} get-VM: {}".format(task_id, error_text), exc_info=True)
+                                    task_warning_msg += error_text
+                                    # TODO Set error_msg at instance_nets instead of instance VMs
+
+                            # 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:
+                                    error_text = "ovimException creating new_external_port compute_node={}" \
+                                                 " pci={} vlan={} {}".format(
+                                        interface["compute_node"],
+                                        interface["pci"],
+                                        interface.get("vlan"), e)
+                                    self.logger.error("task={} get-VM: {}".format(task_id, error_text), exc_info=True)
+                                    task_warning_msg += error_text
+                                    # TODO Set error_msg at instance_nets instead of instance VMs
 
-                        with self.db_lock:
                             self.db.update_rows(
                                 'instance_interfaces',
                                 UPDATE={"mac_address": interface.get("mac_address"),
                                         "ip_address": interface.get("ip_address"),
+                                        "vim_interface_id": interface.get("vim_interface_id"),
                                         "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
-
-                # check and update task and instance_vms database
-                if vim_info.get("error_msg"):
-                    vim_info["error_msg"] = self._format_vim_error_msg(vim_info["error_msg"] + task_warning_msg)
-                elif task_warning_msg:
-                    vim_info["error_msg"] = self._format_vim_error_msg(task_warning_msg)
-
-                task_vim_info = task.get("vim_info")
-                task_error_msg = task.get("error_msg")
-                task_vim_status = task["extra"].get("vim_status")
-                if task_vim_status != vim_info["status"] or task_error_msg != vim_info.get("error_msg") or \
-                        (vim_info.get("vim_info") and task_vim_info != vim_info["vim_info"]):
-                    temp_dict = {"status": vim_info["status"], "error_msg": vim_info.get("error_msg")}
-                    if vim_info.get("vim_info"):
-                        temp_dict["vim_info"] = vim_info["vim_info"]
-                    with self.db_lock:
+                            task["vim_interfaces"][vim_interface_id] = interface
+
+                    # check and update task and instance_vms database
+                    vim_info_error_msg = None
+                    if vim_info.get("error_msg"):
+                        vim_info_error_msg = self._format_vim_error_msg(vim_info["error_msg"] + task_warning_msg)
+                    elif task_warning_msg:
+                        vim_info_error_msg = self._format_vim_error_msg(task_warning_msg)
+                    task_vim_info = task.get("vim_info")
+                    task_error_msg = task.get("error_msg")
+                    task_vim_status = task["extra"].get("vim_status")
+                    if task_vim_status != vim_info["status"] or task_error_msg != vim_info_error_msg or \
+                            (vim_info.get("vim_info") and task_vim_info != vim_info["vim_info"]):
+                        temp_dict = {"status": vim_info["status"], "error_msg": vim_info_error_msg}
+                        if vim_info.get("vim_info"):
+                            temp_dict["vim_info"] = vim_info["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")
-                    if vim_info.get("vim_info"):
-                        task["vim_info"] = vim_info["vim_info"]
-                    task_need_update = True
-
-                if task_need_update:
-                    with self.db_lock:
+                        task["extra"]["vim_status"] = vim_info["status"]
+                        task["error_msg"] = vim_info_error_msg
+                        if vim_info.get("vim_info"):
+                            task["vim_info"] = vim_info["vim_info"]
+                        task_need_update = True
+
+                    if task_need_update:
                         self.db.update_rows(
-                            'vim_actions',
+                            'vim_wim_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)
+                                    '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)
 
         if net_to_refresh_list:
             now = time.time()
@@ -366,60 +418,61 @@ class vim_thread(threading.Thread):
 
             for vim_id, vim_info in vim_dict.items():
                 # look for task
-                task = net_to_refresh_dict[vim_id]
-                task_id = task["instance_action_id"] + "." + str(task["task_index"])
-                self.logger.debug("task={} get-net: vim_net_id={} result={}".format(task_id, task["vim_id"], 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)
-                    except (ovimException, Exception) as e:
-                        text_error = "ovimException getting network snd_net_id={}: {}".format(task_sdn_net_id, e)
-                        self.logger.error("task={} get-net: {}".format(task_id, text_error), exc_info=True)
-                        sdn_net = {"status": "ERROR", "error_msg": text_error}
-                    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"
-
-                # 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 \
-                        (vim_info.get("vim_info") and task_vim_info != vim_info["vim_info"]):
-                    task["extra"]["vim_status"] = vim_info["status"]
-                    task["error_msg"] = vim_info.get("error_msg")
-                    if vim_info.get("vim_info"):
-                        task["vim_info"] = vim_info["vim_info"]
-                    temp_dict = {"status": vim_info["status"], "error_msg": vim_info.get("error_msg")}
-                    if vim_info.get("vim_info"):
-                        temp_dict["vim_info"] = vim_info["vim_info"]
-                    with self.db_lock:
+                for task in net_to_refresh_dict[vim_id]:
+                    task_id = task["instance_action_id"] + "." + str(task["task_index"])
+                    self.logger.debug("task={} get-net: vim_net_id={} result={}".format(task_id, task["vim_id"], 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")
+
+                    vim_info_status = vim_info["status"]
+                    vim_info_error_msg = vim_info.get("error_msg")
+                    # get ovim status
+                    if task_sdn_net_id:
+                        try:
+                            with self.db_lock:
+                                sdn_net = self.ovim.show_network(task_sdn_net_id)
+                        except (ovimException, Exception) as e:
+                            text_error = "ovimException getting network snd_net_id={}: {}".format(task_sdn_net_id, e)
+                            self.logger.error("task={} get-net: {}".format(task_id, text_error), exc_info=True)
+                            sdn_net = {"status": "ERROR", "last_error": text_error}
+                        if sdn_net["status"] == "ERROR":
+                            if not vim_info_error_msg:
+                                vim_info_error_msg = str(sdn_net.get("last_error"))
+                            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["last_error"], 1024 // 2 - 14))
+                            vim_info_status = "ERROR"
+                        elif sdn_net["status"] == "BUILD":
+                            if vim_info_status == "ACTIVE":
+                                vim_info_status = "BUILD"
+
+                    # update database
+                    if vim_info_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_error_msg or \
+                            (vim_info.get("vim_info") and task_vim_info != vim_info["vim_info"]):
+                        task["extra"]["vim_status"] = vim_info_status
+                        task["error_msg"] = vim_info_error_msg
+                        if vim_info.get("vim_info"):
+                            task["vim_info"] = vim_info["vim_info"]
+                        temp_dict = {"status": vim_info_status, "error_msg": vim_info_error_msg}
+                        if vim_info.get("vim_info"):
+                            temp_dict["vim_info"] = vim_info["vim_info"]
                         self.db.update_rows('instance_nets', UPDATE=temp_dict, WHERE={"uuid": task["item_id"]})
                         self.db.update_rows(
-                            'vim_actions',
+                            'vim_wim_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)
+                                    '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)
 
         return nb_processed
 
@@ -473,7 +526,7 @@ class vim_thread(threading.Thread):
                 for task_index in task["extra"].get("depends_on", ()):
                     task_dependency = task["depends"].get("TASK-" + str(task_index))
                     if not task_dependency:
-                        task_dependency = self._look_for_task(task["instance_action_id"], "TASK-" + str(task_index))
+                        task_dependency = self._look_for_task(task["instance_action_id"], task_index)
                         if not task_dependency:
                             raise VimThreadException(
                                 "Cannot get depending net task trying to get depending task {}.{}".format(
@@ -576,7 +629,7 @@ class vim_thread(threading.Thread):
                     database_update["vim_net_id"] = None
 
             no_refresh_tasks = ['instance_sfis', 'instance_sfs',
-                'instance_classifications', 'instance_sfps']
+                                'instance_classifications', 'instance_sfps']
             if task["action"] == "DELETE":
                 action_key = task["item"] + task["item_id"]
                 del self.grouped_tasks[action_key]
@@ -590,23 +643,22 @@ class vim_thread(threading.Thread):
                 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_wim_actions",
+                    UPDATE={"status": task["status"], "vim_id": task.get("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="vim_actions",
-                        UPDATE={"status": task["status"], "vim_id": task.get("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"]})
+                        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("task={} Error updating database {}".format(task_id, e), exc_info=True)
 
@@ -631,10 +683,19 @@ class vim_thread(threading.Thread):
                 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"]:
+                    for dependency_task in depends_on_list:
+                        if isinstance(dependency_task, int):
+                            index = dependency_task
+                        else:
+                            instance_action_id, _, task_id = dependency_task.rpartition(".")
+                            if instance_action_id != task["instance_action_id"]:
+                                continue
+                            index = int(task_id)
+
+                        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]
+                            task["depends"]["TASK-{}.{}".format(task["instance_action_id"], index)] = vim_actions_list[index]
                 if extra.get("interfaces"):
                     task["vim_interfaces"] = {}
             else:
@@ -693,13 +754,15 @@ class vim_thread(threading.Thread):
             if task["status"] == "SCHEDULED":
                 task["status"] = "SUPERSEDED"
                 return True
-            else:   # task["status"] == "processing"
+            else:  # task["status"] == "processing"
                 self.task_lock.release()
                 return False
 
     def run(self):
         self.logger.debug("Starting")
         while True:
+            self.get_vimconnector()
+            self.logger.debug("Vimconnector loaded")
             self._reload_vim_actions()
             reload_thread = False
 
@@ -729,10 +792,26 @@ class vim_thread(threading.Thread):
         self.logger.debug("Finishing")
 
     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})
+        """
+        Look for a concrete task at vim_actions database table
+        :param instance_action_id: The instance_action_id
+        :param task_id: Can have several formats:
+            <task index>: integer
+            TASK-<task index> :backward compatibility,
+            [TASK-]<instance_action_id>.<task index>: this instance_action_id overrides the one in the parameter
+        :return: Task dictionary or None if not found
+        """
+        if isinstance(task_id, int):
+            task_index = task_id
+        else:
+            if task_id.startswith("TASK-"):
+                task_id = task_id[5:]
+            ins_action_id, _, task_index = task_id.rpartition(".")
+            if ins_action_id:
+                instance_action_id = ins_action_id
+
+        tasks = self.db.get_rows(FROM="vim_wim_actions", WHERE={"instance_action_id": instance_action_id,
+                                                            "task_index": task_index})
         if not tasks:
             return None
         task = tasks[0]
@@ -751,7 +830,7 @@ class vim_thread(threading.Thread):
     @staticmethod
     def _format_vim_error_msg(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[:max_length // 2 - 3] + " ... " + error_text[-max_length // 2 + 3:]
         return error_text
 
     def new_vm(self, task):
@@ -775,22 +854,23 @@ class vim_thread(threading.Thread):
                             "Cannot create VM because depends on a network not created or found: " +
                             str(depends[net["net_id"]]["error_msg"]))
                     net["net_id"] = network_id
-            vim_vm_id, created_items = self.vim.new_vminstance(*params)
+            params_copy = deepcopy(params)
+            vim_vm_id, created_items = self.vim.new_vminstance(*params_copy)
 
             # fill task_interfaces. Look for snd_net_id at database for each interface
             task_interfaces = {}
-            for iface in net_list:
+            for iface in params_copy[5]:
                 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"]})
+                result = self.db.get_rows(
+                    SELECT=('sdn_net_id', 'interface_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']
+                    task_interfaces[iface["vim_id"]]["interface_id"] = result[0]['interface_id']
                 else:
                     self.logger.critical("task={} new-VM: instance_nets uuid={} not found at DB".format(task_id,
-                                         iface["uuid"]), exc_info=True)
+                                                                                                        iface["uuid"]), exc_info=True)
 
             task["vim_info"] = {}
             task["vim_interfaces"] = {}
@@ -821,7 +901,7 @@ class vim_thread(threading.Thread):
                 if iface.get("sdn_port_id"):
                     try:
                         with self.db_lock:
-                            self.ovim.delete_port(iface["sdn_port_id"])
+                            self.ovim.delete_port(iface["sdn_port_id"], idempotent=True)
                     except ovimException as e:
                         self.logger.error("task={} del-VM: ovimException when deleting external_port={}: {} ".format(
                             task_id, iface["sdn_port_id"], e), exc_info=True)
@@ -858,10 +938,10 @@ class vim_thread(threading.Thread):
 
         # 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})
+        result = self.db.get_rows(SELECT=('sdn_net_id',), FROM='instance_nets',
+                                    WHERE={'vim_net_id': vim_net_id,
+                                            'datacenter_tenant_id': self.datacenter_tenant_id},
+                                    ORDER="instance_scenario_id")
         if result:
             sdn_net_id = result[0]['sdn_net_id']
 
@@ -910,10 +990,13 @@ class vim_thread(threading.Thread):
             # CREATE
             params = task["params"]
             action_text = "creating VIM"
-            vim_net_id = self.vim.new_network(*params)
+            vim_net_id, created_items = self.vim.new_network(*params[0:3])
 
             net_name = params[0]
             net_type = params[1]
+            wim_account_name = None
+            if len(params) >= 4:
+                wim_account_name = params[3]
 
             sdn_controller = self.vim.config.get('sdn-controller')
             if sdn_controller and (net_type == "data" or net_type == "ptp"):
@@ -928,10 +1011,35 @@ class vim_thread(threading.Thread):
                 action_text = "creating SDN"
                 with self.db_lock:
                     sdn_net_id = self.ovim.new_network(network)
+
+                if wim_account_name and self.vim.config["wim_external_ports"]:
+                    # add external port to connect WIM. Try with compute node __WIM:wim_name and __WIM
+                    action_text = "attaching external port to ovim network"
+                    sdn_port_name = sdn_net_id + "." + task["vim_id"]
+                    sdn_port_name = sdn_port_name[:63]
+                    sdn_port_data = {
+                        "compute_node": "__WIM:" + wim_account_name[0:58],
+                        "pci": None,
+                        "vlan": network["vlan"],
+                        "net_id": sdn_net_id,
+                        "region": self.vim["config"]["datacenter_id"],
+                        "name": sdn_port_name,
+                    }
+                    try:
+                        with self.db_lock:
+                            sdn_external_port_id = self.ovim.new_external_port(sdn_port_data)
+                    except ovimException:
+                        sdn_port_data["compute_node"] = "__WIM"
+                        with self.db_lock:
+                            sdn_external_port_id = self.ovim.new_external_port(sdn_port_data)
+                    self.logger.debug("Added sdn_external_port {} to sdn_network {}".format(sdn_external_port_id,
+                                                                                            sdn_net_id))
+
             task["status"] = "DONE"
             task["extra"]["vim_info"] = {}
             task["extra"]["sdn_net_id"] = sdn_net_id
             task["extra"]["created"] = True
+            task["extra"]["created_items"] = created_items
             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",
@@ -958,10 +1066,10 @@ class vim_thread(threading.Thread):
                     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.ovim.delete_port(port['uuid'], idempotent=True)
+                    self.ovim.delete_network(sdn_net_id, idempotent=True)
             if net_vim_id:
-                self.vim.delete_network(net_vim_id)
+                self.vim.delete_network(net_vim_id, task["extra"].get("created_items"))
             task["status"] = "DONE"
             task["error_msg"] = None
             return True, None
@@ -982,18 +1090,39 @@ class vim_thread(threading.Thread):
     def new_sfi(self, task):
         vim_sfi_id = None
         try:
-            params = task["params"]
+            # Waits for interfaces to be ready (avoids failure)
+            time.sleep(1)
+            dep_id = "TASK-" + str(task["extra"]["depends_on"][0])
             task_id = task["instance_action_id"] + "." + str(task["task_index"])
-            depends = task.get("depends")
             error_text = ""
-            interfaces = task.get("depends").values()[0].get("extra").get("params")[5]
+            interfaces = task.get("depends").get(dep_id).get("extra").get("interfaces")
+            ingress_interface_id = task.get("extra").get("params").get("ingress_interface_id")
+            egress_interface_id = task.get("extra").get("params").get("egress_interface_id")
+            ingress_vim_interface_id = None
+            egress_vim_interface_id = None
+            for vim_interface, interface_data in interfaces.iteritems():
+                if interface_data.get("interface_id") == ingress_interface_id:
+                    ingress_vim_interface_id = vim_interface
+                    break
+            if ingress_interface_id != egress_interface_id:
+                for vim_interface, interface_data in interfaces.iteritems():
+                    if interface_data.get("interface_id") == egress_interface_id:
+                        egress_vim_interface_id = vim_interface
+                        break
+            else:
+                egress_vim_interface_id = ingress_vim_interface_id
+            if not ingress_vim_interface_id or not egress_vim_interface_id:
+                self.logger.error("Error creating Service Function Instance, Ingress: %s, Egress: %s",
+                                  ingress_vim_interface_id, egress_vim_interface_id)
+                return False, None
             # At the moment, every port associated with the VM will be used both as ingress and egress ports.
             # Bear in mind that different VIM connectors might support SFI differently. In the case of OpenStack, only the
             # first ingress and first egress ports will be used to create the SFI (Port Pair).
-            port_id_list = [interfaces[0].get("vim_id")]
+            ingress_port_id_list = [ingress_vim_interface_id]
+            egress_port_id_list = [egress_vim_interface_id]
             name = "sfi-%s" % task["item_id"][:8]
             # By default no form of IETF SFC Encapsulation will be used
-            vim_sfi_id = self.vim.new_sfi(name, port_id_list, port_id_list, sfc_encap=False)
+            vim_sfi_id = self.vim.new_sfi(name, ingress_port_id_list, egress_port_id_list, sfc_encap=False)
 
             task["extra"]["created"] = True
             task["error_msg"] = None
@@ -1031,12 +1160,11 @@ class vim_thread(threading.Thread):
     def new_sf(self, task):
         vim_sf_id = None
         try:
-            params = task["params"]
             task_id = task["instance_action_id"] + "." + str(task["task_index"])
-            depends = task.get("depends")
             error_text = ""
-            #sfis = task.get("depends").values()[0].get("extra").get("params")[5]
-            sfis = task.get("depends").values()
+            depending_tasks = ["TASK-" + str(dep_id) for dep_id in task["extra"]["depends_on"]]
+            # sfis = task.get("depends").values()[0].get("extra").get("params")[5]
+            sfis = [task.get("depends").get(dep_task) for dep_task in depending_tasks]
             sfi_id_list = []
             for sfi in sfis:
                 sfi_id_list.append(sfi.get("vim_id"))
@@ -1082,9 +1210,9 @@ class vim_thread(threading.Thread):
         try:
             params = task["params"]
             task_id = task["instance_action_id"] + "." + str(task["task_index"])
-            depends = task.get("depends")
+            dep_id = "TASK-" + str(task["extra"]["depends_on"][0])
             error_text = ""
-            interfaces = task.get("depends").values()[0].get("extra").get("params")[5]
+            interfaces = task.get("depends").get(dep_id).get("extra").get("interfaces").keys()
             # Bear in mind that different VIM connectors might support Classifications differently.
             # In the case of OpenStack, only the first VNF attached to the classifier will be used
             # to create the Classification(s) (the "logical source port" of the "Flow Classifier").
@@ -1095,26 +1223,31 @@ class vim_thread(threading.Thread):
             ip_proto = int(params.get("ip_proto"))
             source_ip = params.get("source_ip")
             destination_ip = params.get("destination_ip")
-            if ip_proto == 1:
-                ip_proto = 'icmp'
-            elif ip_proto == 6:
-                ip_proto = 'tcp'
-            elif ip_proto == 17:
-                ip_proto = 'udp'
-            if '/' not in source_ip:
-                source_ip += '/32'
-            if '/' not in destination_ip:
-                destination_ip += '/32'
-            definition = {
-                    "logical_source_port": interfaces[0].get("vim_id"),
-                    "protocol": ip_proto,
-                    "source_ip_prefix": source_ip,
-                    "destination_ip_prefix": destination_ip,
-                    "source_port_range_min": params.get("source_port"),
-                    "source_port_range_max": params.get("source_port"),
-                    "destination_port_range_min": params.get("destination_port"),
-                    "destination_port_range_max": params.get("destination_port"),
-            }
+            source_port = params.get("source_port")
+            destination_port = params.get("destination_port")
+            definition = {"logical_source_port": interfaces[0]}
+            if ip_proto:
+                if ip_proto == 1:
+                    ip_proto = 'icmp'
+                elif ip_proto == 6:
+                    ip_proto = 'tcp'
+                elif ip_proto == 17:
+                    ip_proto = 'udp'
+                definition["protocol"] = ip_proto
+            if source_ip:
+                if '/' not in source_ip:
+                    source_ip += '/32'
+                definition["source_ip_prefix"] = source_ip
+            if source_port:
+                definition["source_port_range_min"] = source_port
+                definition["source_port_range_max"] = source_port
+            if destination_port:
+                definition["destination_port_range_min"] = destination_port
+                definition["destination_port_range_max"] = destination_port
+            if destination_ip:
+                if '/' not in destination_ip:
+                    destination_ip += '/32'
+                definition["destination_ip_prefix"] = destination_ip
 
             vim_classification_id = self.vim.new_classification(
                 name, 'legacy_flow_classifier', definition)
@@ -1157,12 +1290,11 @@ class vim_thread(threading.Thread):
         try:
             params = task["params"]
             task_id = task["instance_action_id"] + "." + str(task["task_index"])
-            depends = task.get("depends")
+            depending_tasks = [task.get("depends").get("TASK-" + str(tsk_id)) for tsk_id in task.get("extra").get("depends_on")]
             error_text = ""
-            deps = task.get("depends").values()
             sf_id_list = []
             classification_id_list = []
-            for dep in deps:
+            for dep in depending_tasks:
                 vim_id = dep.get("vim_id")
                 resource = dep.get("item")
                 if resource == "instance_sfs":