Feature 10922: Stop, start and rebuild
[osm/RO.git] / NG-RO / osm_ng_ro / ns_thread.py
index 5c3bb5d..9ed04d7 100644 (file)
@@ -32,6 +32,7 @@ import queue
 from shutil import rmtree
 import threading
 import time
+import traceback
 from unittest.mock import Mock
 
 from importlib_metadata import entry_points
@@ -210,6 +211,7 @@ class VimInteractionNet(VimInteractionBase):
                 "created": created,
                 "created_items": created_items,
                 "vim_details": None,
+                "vim_message": None,
             }
             self.logger.debug(
                 "task={} {} new-net={} created={}".format(
@@ -225,7 +227,7 @@ class VimInteractionNet(VimInteractionBase):
             ro_vim_item_update = {
                 "vim_status": "VIM_ERROR",
                 "created": created,
-                "vim_details": str(e),
+                "vim_message": str(e),
             }
 
             return "FAILED", ro_vim_item_update
@@ -265,11 +267,11 @@ class VimInteractionNet(VimInteractionBase):
             ro_vim_item_update["vim_name"] = vim_info.get("name")
 
         if vim_info["status"] in ("ERROR", "VIM_ERROR"):
-            if ro_task["vim_info"]["vim_details"] != vim_info.get("error_msg"):
-                ro_vim_item_update["vim_details"] = vim_info.get("error_msg")
+            if ro_task["vim_info"]["vim_message"] != vim_info.get("error_msg"):
+                ro_vim_item_update["vim_message"] = vim_info.get("error_msg")
         elif vim_info["status"] == "DELETED":
             ro_vim_item_update["vim_id"] = None
-            ro_vim_item_update["vim_details"] = "Deleted externally"
+            ro_vim_item_update["vim_message"] = "Deleted externally"
         else:
             if ro_task["vim_info"]["vim_details"] != vim_info["vim_info"]:
                 ro_vim_item_update["vim_details"] = vim_info["vim_info"]
@@ -281,7 +283,7 @@ class VimInteractionNet(VimInteractionBase):
                     ro_task["target_id"],
                     vim_id,
                     ro_vim_item_update.get("vim_status"),
-                    ro_vim_item_update.get("vim_details")
+                    ro_vim_item_update.get("vim_message")
                     if ro_vim_item_update.get("vim_status") != "ACTIVE"
                     else "",
                 )
@@ -296,7 +298,7 @@ class VimInteractionNet(VimInteractionBase):
         ro_vim_item_update_ok = {
             "vim_status": "DELETED",
             "created": False,
-            "vim_details": "DELETED",
+            "vim_message": "DELETED",
             "vim_id": None,
         }
 
@@ -307,7 +309,7 @@ class VimInteractionNet(VimInteractionBase):
                     net_vim_id, ro_task["vim_info"]["created_items"]
                 )
         except vimconn.VimConnNotFoundException:
-            ro_vim_item_update_ok["vim_details"] = "already deleted"
+            ro_vim_item_update_ok["vim_message"] = "already deleted"
         except vimconn.VimConnException as e:
             self.logger.error(
                 "ro_task={} vim={} del-net={}: {}".format(
@@ -316,7 +318,7 @@ class VimInteractionNet(VimInteractionBase):
             )
             ro_vim_item_update = {
                 "vim_status": "VIM_ERROR",
-                "vim_details": "Error while deleting: {}".format(e),
+                "vim_message": "Error while deleting: {}".format(e),
             }
 
             return "FAILED", ro_vim_item_update
@@ -326,7 +328,7 @@ class VimInteractionNet(VimInteractionBase):
                 task_id,
                 ro_task["target_id"],
                 net_vim_id,
-                ro_vim_item_update_ok.get("vim_details", ""),
+                ro_vim_item_update_ok.get("vim_message", ""),
             )
         )
 
@@ -389,14 +391,21 @@ class VimInteractionVdu(VimInteractionBase):
             vim_vm_id, created_items = target_vim.new_vminstance(**params_copy)
             interfaces = [iface["vim_id"] for iface in params_copy["net_list"]]
 
+            # add to created items previous_created_volumes (healing)
+            if task.get("previous_created_volumes"):
+                for k, v in task["previous_created_volumes"].items():
+                    created_items[k] = v
+
             ro_vim_item_update = {
                 "vim_id": vim_vm_id,
                 "vim_status": "BUILD",
                 "created": created,
                 "created_items": created_items,
                 "vim_details": None,
+                "vim_message": None,
                 "interfaces_vim_ids": interfaces,
                 "interfaces": [],
+                "interfaces_backup": [],
             }
             self.logger.debug(
                 "task={} {} new-vm={} created={}".format(
@@ -412,7 +421,7 @@ class VimInteractionVdu(VimInteractionBase):
             ro_vim_item_update = {
                 "vim_status": "VIM_ERROR",
                 "created": created,
-                "vim_details": str(e),
+                "vim_message": str(e),
             }
 
             return "FAILED", ro_vim_item_update
@@ -424,18 +433,25 @@ class VimInteractionVdu(VimInteractionBase):
         ro_vim_item_update_ok = {
             "vim_status": "DELETED",
             "created": False,
-            "vim_details": "DELETED",
+            "vim_message": "DELETED",
             "vim_id": None,
         }
 
         try:
+            self.logger.debug(
+                "delete_vminstance: vm_vim_id={} created_items={}".format(
+                    vm_vim_id, ro_task["vim_info"]["created_items"]
+                )
+            )
             if vm_vim_id or ro_task["vim_info"]["created_items"]:
                 target_vim = self.my_vims[ro_task["target_id"]]
                 target_vim.delete_vminstance(
-                    vm_vim_id, ro_task["vim_info"]["created_items"]
+                    vm_vim_id,
+                    ro_task["vim_info"]["created_items"],
+                    ro_task["vim_info"].get("volumes_to_hold", []),
                 )
         except vimconn.VimConnNotFoundException:
-            ro_vim_item_update_ok["vim_details"] = "already deleted"
+            ro_vim_item_update_ok["vim_message"] = "already deleted"
         except vimconn.VimConnException as e:
             self.logger.error(
                 "ro_task={} vim={} del-vm={}: {}".format(
@@ -444,7 +460,7 @@ class VimInteractionVdu(VimInteractionBase):
             )
             ro_vim_item_update = {
                 "vim_status": "VIM_ERROR",
-                "vim_details": "Error while deleting: {}".format(e),
+                "vim_message": "Error while deleting: {}".format(e),
             }
 
             return "FAILED", ro_vim_item_update
@@ -454,7 +470,7 @@ class VimInteractionVdu(VimInteractionBase):
                 task_id,
                 ro_task["target_id"],
                 vm_vim_id,
-                ro_vim_item_update_ok.get("vim_details", ""),
+                ro_vim_item_update_ok.get("vim_message", ""),
             )
         )
 
@@ -542,11 +558,11 @@ class VimInteractionVdu(VimInteractionBase):
             ro_vim_item_update["vim_name"] = vim_info.get("name")
 
         if vim_info["status"] in ("ERROR", "VIM_ERROR"):
-            if ro_task["vim_info"]["vim_details"] != vim_info.get("error_msg"):
-                ro_vim_item_update["vim_details"] = vim_info.get("error_msg")
+            if ro_task["vim_info"]["vim_message"] != vim_info.get("error_msg"):
+                ro_vim_item_update["vim_message"] = vim_info.get("error_msg")
         elif vim_info["status"] == "DELETED":
             ro_vim_item_update["vim_id"] = None
-            ro_vim_item_update["vim_details"] = "Deleted externally"
+            ro_vim_item_update["vim_message"] = "Deleted externally"
         else:
             if ro_task["vim_info"]["vim_details"] != vim_info["vim_info"]:
                 ro_vim_item_update["vim_details"] = vim_info["vim_info"]
@@ -558,7 +574,7 @@ class VimInteractionVdu(VimInteractionBase):
                     ro_task["target_id"],
                     vim_id,
                     ro_vim_item_update.get("vim_status"),
-                    ro_vim_item_update.get("vim_details")
+                    ro_vim_item_update.get("vim_message")
                     if ro_vim_item_update.get("vim_status") != "ACTIVE"
                     else "",
                 )
@@ -595,6 +611,7 @@ class VimInteractionVdu(VimInteractionBase):
         except (vimconn.VimConnException, NsWorkerException) as e:
             retries += 1
 
+            self.logger.debug(traceback.format_exc())
             if retries < self.max_retries_inject_ssh_key:
                 return (
                     "BUILD",
@@ -608,7 +625,7 @@ class VimInteractionVdu(VimInteractionBase):
             self.logger.error(
                 "task={} {} inject-ssh-key: {}".format(task_id, ro_task["target_id"], e)
             )
-            ro_vim_item_update = {"vim_details": str(e)}
+            ro_vim_item_update = {"vim_message": str(e)}
 
             return "FAILED", ro_vim_item_update, db_task_update
 
@@ -647,6 +664,7 @@ class VimInteractionImage(VimInteractionBase):
                 "created": created,
                 "created_items": created_items,
                 "vim_details": None,
+                "vim_message": None,
             }
             self.logger.debug(
                 "task={} {} new-image={} created={}".format(
@@ -662,7 +680,7 @@ class VimInteractionImage(VimInteractionBase):
             ro_vim_item_update = {
                 "vim_status": "VIM_ERROR",
                 "created": created,
-                "vim_details": str(e),
+                "vim_message": str(e),
             }
 
             return "FAILED", ro_vim_item_update
@@ -676,7 +694,7 @@ class VimInteractionFlavor(VimInteractionBase):
         ro_vim_item_update_ok = {
             "vim_status": "DELETED",
             "created": False,
-            "vim_details": "DELETED",
+            "vim_message": "DELETED",
             "vim_id": None,
         }
 
@@ -685,7 +703,7 @@ class VimInteractionFlavor(VimInteractionBase):
                 target_vim = self.my_vims[ro_task["target_id"]]
                 target_vim.delete_flavor(flavor_vim_id)
         except vimconn.VimConnNotFoundException:
-            ro_vim_item_update_ok["vim_details"] = "already deleted"
+            ro_vim_item_update_ok["vim_message"] = "already deleted"
         except vimconn.VimConnException as e:
             self.logger.error(
                 "ro_task={} vim={} del-flavor={}: {}".format(
@@ -694,7 +712,7 @@ class VimInteractionFlavor(VimInteractionBase):
             )
             ro_vim_item_update = {
                 "vim_status": "VIM_ERROR",
-                "vim_details": "Error while deleting: {}".format(e),
+                "vim_message": "Error while deleting: {}".format(e),
             }
 
             return "FAILED", ro_vim_item_update
@@ -704,7 +722,7 @@ class VimInteractionFlavor(VimInteractionBase):
                 task_id,
                 ro_task["target_id"],
                 flavor_vim_id,
-                ro_vim_item_update_ok.get("vim_details", ""),
+                ro_vim_item_update_ok.get("vim_message", ""),
             )
         )
 
@@ -740,6 +758,7 @@ class VimInteractionFlavor(VimInteractionBase):
                 "created": created,
                 "created_items": created_items,
                 "vim_details": None,
+                "vim_message": None,
             }
             self.logger.debug(
                 "task={} {} new-flavor={} created={}".format(
@@ -755,7 +774,7 @@ class VimInteractionFlavor(VimInteractionBase):
             ro_vim_item_update = {
                 "vim_status": "VIM_ERROR",
                 "created": created,
-                "vim_details": str(e),
+                "vim_message": str(e),
             }
 
             return "FAILED", ro_vim_item_update
@@ -769,7 +788,7 @@ class VimInteractionAffinityGroup(VimInteractionBase):
         ro_vim_item_update_ok = {
             "vim_status": "DELETED",
             "created": False,
-            "vim_details": "DELETED",
+            "vim_message": "DELETED",
             "vim_id": None,
         }
 
@@ -778,7 +797,7 @@ class VimInteractionAffinityGroup(VimInteractionBase):
                 target_vim = self.my_vims[ro_task["target_id"]]
                 target_vim.delete_affinity_group(affinity_group_vim_id)
         except vimconn.VimConnNotFoundException:
-            ro_vim_item_update_ok["vim_details"] = "already deleted"
+            ro_vim_item_update_ok["vim_message"] = "already deleted"
         except vimconn.VimConnException as e:
             self.logger.error(
                 "ro_task={} vim={} del-affinity-or-anti-affinity-group={}: {}".format(
@@ -787,7 +806,7 @@ class VimInteractionAffinityGroup(VimInteractionBase):
             )
             ro_vim_item_update = {
                 "vim_status": "VIM_ERROR",
-                "vim_details": "Error while deleting: {}".format(e),
+                "vim_message": "Error while deleting: {}".format(e),
             }
 
             return "FAILED", ro_vim_item_update
@@ -797,7 +816,7 @@ class VimInteractionAffinityGroup(VimInteractionBase):
                 task_id,
                 ro_task["target_id"],
                 affinity_group_vim_id,
-                ro_vim_item_update_ok.get("vim_details", ""),
+                ro_vim_item_update_ok.get("vim_message", ""),
             )
         )
 
@@ -812,9 +831,28 @@ class VimInteractionAffinityGroup(VimInteractionBase):
 
         try:
             affinity_group_vim_id = None
+            affinity_group_data = None
 
             if task.get("params"):
-                affinity_group_data = task["params"]["affinity_group_data"]
+                affinity_group_data = task["params"].get("affinity_group_data")
+
+            if affinity_group_data and affinity_group_data.get("vim-affinity-group-id"):
+                try:
+                    param_affinity_group_id = task["params"]["affinity_group_data"].get(
+                        "vim-affinity-group-id"
+                    )
+                    affinity_group_vim_id = target_vim.get_affinity_group(
+                        param_affinity_group_id
+                    ).get("id")
+                except vimconn.VimConnNotFoundException:
+                    self.logger.error(
+                        "task={} {} new-affinity-or-anti-affinity-group. Provided VIM Affinity Group ID {}"
+                        "could not be found at VIM. Creating a new one.".format(
+                            task_id, ro_task["target_id"], param_affinity_group_id
+                        )
+                    )
+
+            if not affinity_group_vim_id and affinity_group_data:
                 affinity_group_vim_id = target_vim.new_affinity_group(
                     affinity_group_data
                 )
@@ -826,6 +864,7 @@ class VimInteractionAffinityGroup(VimInteractionBase):
                 "created": created,
                 "created_items": created_items,
                 "vim_details": None,
+                "vim_message": None,
             }
             self.logger.debug(
                 "task={} {} new-affinity-or-anti-affinity-group={} created={}".format(
@@ -842,12 +881,54 @@ class VimInteractionAffinityGroup(VimInteractionBase):
             ro_vim_item_update = {
                 "vim_status": "VIM_ERROR",
                 "created": created,
-                "vim_details": str(e),
+                "vim_message": str(e),
             }
 
             return "FAILED", ro_vim_item_update
 
 
+class VimInteractionUpdateVdu(VimInteractionBase):
+    def exec(self, ro_task, task_index, task_depends):
+        task = ro_task["tasks"][task_index]
+        task_id = task["task_id"]
+        db_task_update = {"retries": 0}
+        created = False
+        created_items = {}
+        target_vim = self.my_vims[ro_task["target_id"]]
+
+        try:
+            if task.get("params"):
+                vim_vm_id = task["params"].get("vim_vm_id")
+                action = task["params"].get("action")
+                context = {action: action}
+                target_vim.action_vminstance(vim_vm_id, context)
+                # created = True
+            ro_vim_item_update = {
+                "vim_id": vim_vm_id,
+                "vim_status": "DONE",
+                "created": created,
+                "created_items": created_items,
+                "vim_details": None,
+                "vim_message": None,
+            }
+            self.logger.debug(
+                "task={} {} vm-migration done".format(task_id, ro_task["target_id"])
+            )
+            return "DONE", ro_vim_item_update, db_task_update
+        except (vimconn.VimConnException, NsWorkerException) as e:
+            self.logger.error(
+                "task={} vim={} VM Migration:"
+                " {}".format(task_id, ro_task["target_id"], e)
+            )
+            ro_vim_item_update = {
+                "vim_status": "VIM_ERROR",
+                "created": created,
+                "vim_message": str(e),
+            }
+
+            return "FAILED", ro_vim_item_update, db_task_update
+
+
 class VimInteractionSdnNet(VimInteractionBase):
     @staticmethod
     def _match_pci(port_pci, mapping):
@@ -1168,6 +1249,7 @@ class VimInteractionSdnNet(VimInteractionBase):
                 "created_items": created_items,
                 "connected_ports": connected_ports,
                 "vim_details": sdn_info,
+                "vim_message": None,
                 "last_update": last_update,
             }
 
@@ -1182,7 +1264,7 @@ class VimInteractionSdnNet(VimInteractionBase):
             ro_vim_item_update = {
                 "vim_status": "VIM_ERROR",
                 "created": created,
-                "vim_details": str(e),
+                "vim_message": str(e),
             }
 
             return "FAILED", ro_vim_item_update
@@ -1194,7 +1276,7 @@ class VimInteractionSdnNet(VimInteractionBase):
         ro_vim_item_update_ok = {
             "vim_status": "DELETED",
             "created": False,
-            "vim_details": "DELETED",
+            "vim_message": "DELETED",
             "vim_id": None,
         }
 
@@ -1210,7 +1292,7 @@ class VimInteractionSdnNet(VimInteractionBase):
                 isinstance(e, sdnconn.SdnConnectorError)
                 and e.http_code == HTTPStatus.NOT_FOUND.value
             ):
-                ro_vim_item_update_ok["vim_details"] = "already deleted"
+                ro_vim_item_update_ok["vim_message"] = "already deleted"
             else:
                 self.logger.error(
                     "ro_task={} vim={} del-sdn-net={}: {}".format(
@@ -1222,7 +1304,7 @@ class VimInteractionSdnNet(VimInteractionBase):
                 )
                 ro_vim_item_update = {
                     "vim_status": "VIM_ERROR",
-                    "vim_details": "Error while deleting: {}".format(e),
+                    "vim_message": "Error while deleting: {}".format(e),
                 }
 
                 return "FAILED", ro_vim_item_update
@@ -1232,13 +1314,94 @@ class VimInteractionSdnNet(VimInteractionBase):
                 task_id,
                 ro_task["target_id"],
                 sdn_vim_id,
-                ro_vim_item_update_ok.get("vim_details", ""),
+                ro_vim_item_update_ok.get("vim_message", ""),
             )
         )
 
         return "DONE", ro_vim_item_update_ok
 
 
+class VimInteractionMigration(VimInteractionBase):
+    def exec(self, ro_task, task_index, task_depends):
+        task = ro_task["tasks"][task_index]
+        task_id = task["task_id"]
+        db_task_update = {"retries": 0}
+        target_vim = self.my_vims[ro_task["target_id"]]
+        vim_interfaces = []
+        created = False
+        created_items = {}
+        refreshed_vim_info = {}
+
+        try:
+            if task.get("params"):
+                vim_vm_id = task["params"].get("vim_vm_id")
+                migrate_host = task["params"].get("migrate_host")
+                _, migrated_compute_node = target_vim.migrate_instance(
+                    vim_vm_id, migrate_host
+                )
+
+                if migrated_compute_node:
+                    # When VM is migrated, vdu["vim_info"] needs to be updated
+                    vdu_old_vim_info = task["params"]["vdu_vim_info"].get(
+                        ro_task["target_id"]
+                    )
+
+                    # Refresh VM to get new vim_info
+                    vm_to_refresh_list = [vim_vm_id]
+                    vim_dict = target_vim.refresh_vms_status(vm_to_refresh_list)
+                    refreshed_vim_info = vim_dict[vim_vm_id]
+
+                    if refreshed_vim_info.get("interfaces"):
+                        for old_iface in vdu_old_vim_info.get("interfaces"):
+                            iface = next(
+                                (
+                                    iface
+                                    for iface in refreshed_vim_info["interfaces"]
+                                    if old_iface["vim_interface_id"]
+                                    == iface["vim_interface_id"]
+                                ),
+                                None,
+                            )
+                            vim_interfaces.append(iface)
+
+            ro_vim_item_update = {
+                "vim_id": vim_vm_id,
+                "vim_status": "ACTIVE",
+                "created": created,
+                "created_items": created_items,
+                "vim_details": None,
+                "vim_message": None,
+            }
+
+            if refreshed_vim_info and refreshed_vim_info.get("status") not in (
+                "ERROR",
+                "VIM_ERROR",
+            ):
+                ro_vim_item_update["vim_details"] = refreshed_vim_info["vim_info"]
+
+            if vim_interfaces:
+                ro_vim_item_update["interfaces"] = vim_interfaces
+
+            self.logger.debug(
+                "task={} {} vm-migration done".format(task_id, ro_task["target_id"])
+            )
+
+            return "DONE", ro_vim_item_update, db_task_update
+
+        except (vimconn.VimConnException, NsWorkerException) as e:
+            self.logger.error(
+                "task={} vim={} VM Migration:"
+                " {}".format(task_id, ro_task["target_id"], e)
+            )
+            ro_vim_item_update = {
+                "vim_status": "VIM_ERROR",
+                "created": created,
+                "vim_message": str(e),
+            }
+
+            return "FAILED", ro_vim_item_update, db_task_update
+
+
 class NsWorker(threading.Thread):
     REFRESH_BUILD = 5  # 5 seconds
     REFRESH_ACTIVE = 60  # 1 minute
@@ -1283,9 +1446,15 @@ class NsWorker(threading.Thread):
             "sdn_net": VimInteractionSdnNet(
                 self.db, self.my_vims, self.db_vims, self.logger
             ),
+            "update": VimInteractionUpdateVdu(
+                self.db, self.my_vims, self.db_vims, self.logger
+            ),
             "affinity-or-anti-affinity-group": VimInteractionAffinityGroup(
                 self.db, self.my_vims, self.db_vims, self.logger
             ),
+            "migrate": VimInteractionMigration(
+                self.db, self.my_vims, self.db_vims, self.logger
+            ),
         }
         self.time_last_task_processed = None
         # lists of tasks to delete because nsrs or vnfrs has been deleted from db
@@ -1703,7 +1872,7 @@ class NsWorker(threading.Thread):
         1642158640.7986135;1642158640.7986135;1642158640.7986135;b134c9494e75:0a
         ;vim:b7ff9e24-8868-4d68-8a57-a59dc11d0327;None;{'created': False,
         'created_items': None, 'vim_id': None, 'vim_name': None, 'vim_status': None,
-        'vim_details': None, 'refresh_at': None};1;SCHEDULED;
+        'vim_details': None, 'vim_message': None, 'refresh_at': None};1;SCHEDULED;
         888f1864-749a-4fc2-bc1a-97c0fffd6a6f;0;888f1864-749a-4fc2-bc1a-97c0fffd6a6f:2;
         CREATE;image;{'filter_dict': {'name': 'ubuntu-os-cloud:image-family:ubuntu-1804-lts'}}
         """
@@ -1799,6 +1968,7 @@ class NsWorker(threading.Thread):
             "created_items", False
         )
 
+        self.logger.warning("Needed delete: {}".format(needed_delete))
         if my_task["status"] == "FAILED":
             return None, None  # TODO need to be retry??
 
@@ -1822,6 +1992,9 @@ class NsWorker(threading.Thread):
                     needed_delete = False
 
             if needed_delete:
+                self.logger.warning(
+                    "Deleting ro_task={} task_index={}".format(ro_task, task_index)
+                )
                 return self.item2class[my_task["item"]].delete(ro_task, task_index)
             else:
                 return "SUPERSEDED", None
@@ -1834,7 +2007,7 @@ class NsWorker(threading.Thread):
                     exc_info=True,
                 )
 
-            return "FAILED", {"vim_status": "VIM_ERROR", "vim_details": str(e)}
+            return "FAILED", {"vim_status": "VIM_ERROR", "vim_message": str(e)}
 
     def _create_task(self, ro_task, task_index, task_depends, db_update):
         """
@@ -1872,7 +2045,7 @@ class NsWorker(threading.Thread):
                     )
 
                 task_status = "FAILED"
-                ro_vim_item_update = {"vim_status": "VIM_ERROR", "vim_details": str(e)}
+                ro_vim_item_update = {"vim_status": "VIM_ERROR", "vim_message": str(e)}
                 # TODO update    ro_vim_item_update
 
             return task_status, ro_vim_item_update
@@ -1924,8 +2097,9 @@ class NsWorker(threading.Thread):
                 fail_on_empty=False,
             )
 
+            self.logger.warning("ro_task_dependency={}".format(ro_task_dependency))
             if ro_task_dependency:
-                for task_index, task in ro_task_dependency["tasks"]:
+                for task_index, task in enumerate(ro_task_dependency["tasks"]):
                     if task["task_id"] == task_id:
                         return ro_task_dependency, task_index
         raise NsWorkerException("Cannot get depending task {}".format(task_id))
@@ -2025,6 +2199,11 @@ class NsWorker(threading.Thread):
                                 dependency_task = dependency_ro_task["tasks"][
                                     dependency_task_index
                                 ]
+                                self.logger.warning(
+                                    "dependency_ro_task={} dependency_task_index={}".format(
+                                        dependency_ro_task, dependency_task_index
+                                    )
+                                )
 
                                 if dependency_task["status"] == "SCHEDULED":
                                     dependency_not_completed = True
@@ -2045,7 +2224,7 @@ class NsWorker(threading.Thread):
                                         dependency_task["item"],
                                         dependency_task_id,
                                         dependency_ro_task["vim_info"].get(
-                                            "vim_details"
+                                            "vim_message"
                                         ),
                                     )
                                     self.logger.error(
@@ -2061,6 +2240,11 @@ class NsWorker(threading.Thread):
                                 ] = dependency_ro_task["vim_info"]["vim_id"]
 
                             if dependency_not_completed:
+                                self.logger.warning(
+                                    "DEPENDENCY NOT COMPLETED {}".format(
+                                        dependency_ro_task["vim_info"]["vim_id"]
+                                    )
+                                )
                                 # TODO set at vim_info.vim_details that it is waiting
                                 continue
 
@@ -2136,7 +2320,7 @@ class NsWorker(threading.Thread):
                         new_status = "FAILED"
                         db_vim_info_update = {
                             "vim_status": "VIM_ERROR",
-                            "vim_details": str(e),
+                            "vim_message": str(e),
                         }
 
                         if not isinstance(
@@ -2270,7 +2454,15 @@ class NsWorker(threading.Thread):
                 path_vim_status + "." + k: v
                 for k, v in ro_vim_item_update.items()
                 if k
-                in ("vim_id", "vim_details", "vim_name", "vim_status", "interfaces")
+                in (
+                    "vim_id",
+                    "vim_details",
+                    "vim_message",
+                    "vim_name",
+                    "vim_status",
+                    "interfaces",
+                    "interfaces_backup",
+                )
             }
 
             if path_vim_status.startswith("vdur."):
@@ -2323,6 +2515,21 @@ class NsWorker(threading.Thread):
                             ).split(";")[0]
 
             self.db.set_one(table, q_filter={"_id": _id}, update_dict=update_dict)
+
+            # If interfaces exists, it backups VDU interfaces in the DB for healing operations
+            if ro_vim_item_update.get("interfaces"):
+                search_key = path_vim_status + ".interfaces"
+                if update_dict.get(search_key):
+                    interfaces_backup_update = {
+                        path_vim_status + ".interfaces_backup": update_dict[search_key]
+                    }
+
+                    self.db.set_one(
+                        table,
+                        q_filter={"_id": _id},
+                        update_dict=interfaces_backup_update,
+                    )
+
         else:
             update_dict = {path_item + ".status": "DELETED"}
             self.db.set_one(
@@ -2463,6 +2670,8 @@ class NsWorker(threading.Thread):
                 """
                 ro_task = self._get_db_task()
                 if ro_task:
+                    self.logger.warning("Task to process: {}".format(ro_task))
+                    time.sleep(1)
                     self._process_pending_tasks(ro_task)
                     busy = True
                 if not busy: