+ @staticmethod
+ def find_persistent_volumes(
+ persistent_root_disk: dict,
+ target_vdu: str,
+ vdu_instantiation_volumes_list: list,
+ disk_list: list,
+ ) -> list:
+ """Find the ordinary persistent volumes and add them to the disk_list
+ by parsing the instantiation parameters
+
+ Args:
+ persistent_root_disk: persistent root disk dictionary
+ target_vdu: processed VDU
+ vdu_instantiation_volumes_list: instantiation parameters for the each VDU as a list
+ disk_list: to be filled up
+
+ Returns:
+ disk_list: filled VDU list which is used for VDU creation
+
+ """
+ # Find the ordinary volumes which are not added to the persistent_root_disk
+ persistent_disk = {}
+ for disk in target_vdu.get("virtual-storages", {}):
+ if (
+ disk.get("type-of-storage") == "persistent-storage:persistent-storage"
+ and disk["id"] not in persistent_root_disk.keys()
+ ):
+ for vdu_volume in vdu_instantiation_volumes_list:
+
+ if vdu_volume["vim-volume-id"] and disk["id"] == vdu_volume["name"]:
+
+ persistent_disk[disk["id"]] = {
+ "vim_volume_id": vdu_volume["vim-volume-id"],
+ }
+ disk_list.append(persistent_disk[disk["id"]])
+
+ else:
+ if disk["id"] not in persistent_disk.keys():
+ persistent_disk[disk["id"]] = {
+ "size": disk.get("size-of-storage"),
+ }
+ disk_list.append(persistent_disk[disk["id"]])
+
+ return disk_list
+
+ @staticmethod
+ def _process_vdu_params(
+ target_vdu: Dict[str, Any],
+ indata: Dict[str, Any],
+ vim_info: Dict[str, Any],
+ target_record_id: str,
+ **kwargs: Dict[str, Any],
+ ) -> Dict[str, Any]:
+ """Function to process VDU parameters.
+
+ Args:
+ target_vdu (Dict[str, Any]): [description]
+ indata (Dict[str, Any]): [description]
+ vim_info (Dict[str, Any]): [description]
+ target_record_id (str): [description]
+
+ Returns:
+ Dict[str, Any]: [description]
+ """
+ vnfr_id = kwargs.get("vnfr_id")
+ nsr_id = kwargs.get("nsr_id")
+ vnfr = kwargs.get("vnfr")
+ vdu2cloud_init = kwargs.get("vdu2cloud_init")
+ tasks_by_target_record_id = kwargs.get("tasks_by_target_record_id")
+ logger = kwargs.get("logger")
+ db = kwargs.get("db")
+ fs = kwargs.get("fs")
+ ro_nsr_public_key = kwargs.get("ro_nsr_public_key")
+
+ vnf_preffix = "vnfrs:{}".format(vnfr_id)
+ ns_preffix = "nsrs:{}".format(nsr_id)
+ image_text = ns_preffix + ":image." + target_vdu["ns-image-id"]
+ flavor_text = ns_preffix + ":flavor." + target_vdu["ns-flavor-id"]
+ extra_dict = {"depends_on": [image_text, flavor_text]}
+ net_list = []
+
+ # If the position info is provided for all the interfaces, it will be sorted
+ # according to position number ascendingly.
+ if all(
+ i.get("position") + 1
+ for i in target_vdu["interfaces"]
+ if i.get("position") is not None
+ ):
+ sorted_interfaces = sorted(
+ target_vdu["interfaces"],
+ key=lambda x: (x.get("position") is None, x.get("position")),
+ )
+ target_vdu["interfaces"] = sorted_interfaces
+
+ # If the position info is provided for some interfaces but not all of them, the interfaces
+ # which has specific position numbers will be placed and others' positions will not be taken care.
+ else:
+ if any(
+ i.get("position") + 1
+ for i in target_vdu["interfaces"]
+ if i.get("position") is not None
+ ):
+ n = len(target_vdu["interfaces"])
+ sorted_interfaces = [-1] * n
+ k, m = 0, 0
+ while k < n:
+ if target_vdu["interfaces"][k].get("position"):
+ idx = target_vdu["interfaces"][k]["position"]
+ sorted_interfaces[idx - 1] = target_vdu["interfaces"][k]
+ k += 1
+ while m < n:
+ if not target_vdu["interfaces"][m].get("position"):
+ idy = sorted_interfaces.index(-1)
+ sorted_interfaces[idy] = target_vdu["interfaces"][m]
+ m += 1
+
+ target_vdu["interfaces"] = sorted_interfaces
+
+ # If the position info is not provided for the interfaces, interfaces will be attached
+ # according to the order in the VNFD.
+ for iface_index, interface in enumerate(target_vdu["interfaces"]):
+ if interface.get("ns-vld-id"):
+ net_text = ns_preffix + ":vld." + interface["ns-vld-id"]
+ elif interface.get("vnf-vld-id"):
+ net_text = vnf_preffix + ":vld." + interface["vnf-vld-id"]
+ else:
+ logger.error(
+ "Interface {} from vdu {} not connected to any vld".format(
+ iface_index, target_vdu["vdu-name"]
+ )
+ )
+
+ continue # interface not connected to any vld
+
+ extra_dict["depends_on"].append(net_text)
+
+ if "port-security-enabled" in interface:
+ interface["port_security"] = interface.pop("port-security-enabled")
+
+ if "port-security-disable-strategy" in interface:
+ interface["port_security_disable_strategy"] = interface.pop(
+ "port-security-disable-strategy"
+ )
+
+ net_item = {
+ x: v
+ for x, v in interface.items()
+ if x
+ in (
+ "name",
+ "vpci",
+ "port_security",
+ "port_security_disable_strategy",
+ "floating_ip",
+ )
+ }
+ net_item["net_id"] = "TASK-" + net_text
+ net_item["type"] = "virtual"
+
+ # TODO mac_address: used for SR-IOV ifaces #TODO for other types
+ # TODO floating_ip: True/False (or it can be None)
+ if interface.get("type") in ("SR-IOV", "PCI-PASSTHROUGH"):
+ # mark the net create task as type data
+ if deep_get(
+ tasks_by_target_record_id,
+ net_text,
+ "extra_dict",
+ "params",
+ "net_type",
+ ):
+ tasks_by_target_record_id[net_text]["extra_dict"]["params"][
+ "net_type"
+ ] = "data"
+
+ net_item["use"] = "data"
+ net_item["model"] = interface["type"]
+ net_item["type"] = interface["type"]
+ elif (
+ interface.get("type") == "OM-MGMT"
+ or interface.get("mgmt-interface")
+ or interface.get("mgmt-vnf")
+ ):
+ net_item["use"] = "mgmt"
+ else:
+ # if interface.get("type") in ("VIRTIO", "E1000", "PARAVIRT"):
+ net_item["use"] = "bridge"
+ net_item["model"] = interface.get("type")
+
+ if interface.get("ip-address"):
+ net_item["ip_address"] = interface["ip-address"]
+
+ if interface.get("mac-address"):
+ net_item["mac_address"] = interface["mac-address"]
+
+ net_list.append(net_item)
+
+ if interface.get("mgmt-vnf"):
+ extra_dict["mgmt_vnf_interface"] = iface_index
+ elif interface.get("mgmt-interface"):
+ extra_dict["mgmt_vdu_interface"] = iface_index
+
+ # cloud config
+ cloud_config = {}
+
+ if target_vdu.get("cloud-init"):
+ if target_vdu["cloud-init"] not in vdu2cloud_init:
+ vdu2cloud_init[target_vdu["cloud-init"]] = Ns._get_cloud_init(
+ db=db,
+ fs=fs,
+ location=target_vdu["cloud-init"],
+ )
+
+ cloud_content_ = vdu2cloud_init[target_vdu["cloud-init"]]
+ cloud_config["user-data"] = Ns._parse_jinja2(
+ cloud_init_content=cloud_content_,
+ params=target_vdu.get("additionalParams"),
+ context=target_vdu["cloud-init"],
+ )
+
+ if target_vdu.get("boot-data-drive"):
+ cloud_config["boot-data-drive"] = target_vdu.get("boot-data-drive")
+
+ ssh_keys = []
+
+ if target_vdu.get("ssh-keys"):
+ ssh_keys += target_vdu.get("ssh-keys")
+
+ if target_vdu.get("ssh-access-required"):
+ ssh_keys.append(ro_nsr_public_key)
+
+ if ssh_keys:
+ cloud_config["key-pairs"] = ssh_keys
+
+ persistent_root_disk = {}
+ vdu_instantiation_volumes_list = []
+ disk_list = []
+ vnfd_id = vnfr["vnfd-id"]
+ vnfd = db.get_one("vnfds", {"_id": vnfd_id})
+
+ if target_vdu.get("additionalParams"):
+ vdu_instantiation_volumes_list = (
+ target_vdu.get("additionalParams").get("OSM").get("vdu_volumes")
+ )
+
+ if vdu_instantiation_volumes_list:
+
+ # Find the root volumes and add to the disk_list
+ (disk_list, persistent_root_disk,) = Ns.find_persistent_root_volumes(
+ vnfd, target_vdu, vdu_instantiation_volumes_list, disk_list
+ )
+
+ # Find the ordinary volumes which are not added to the persistent_root_disk
+ # and put them to the disk list
+ disk_list = Ns.find_persistent_volumes(
+ persistent_root_disk,
+ target_vdu,
+ vdu_instantiation_volumes_list,
+ disk_list,
+ )
+
+ else:
+
+ # vdu_instantiation_volumes_list is empty
+ for vdu in vnfd.get("vdu", ()):
+ if vdu["name"] == target_vdu["vdu-name"]:
+ for vsd in vnfd.get("virtual-storage-desc", ()):
+ if vsd.get("id") == vdu.get("virtual-storage-desc", [[]])[0]:
+ root_disk = vsd
+ if root_disk.get(
+ "type-of-storage"
+ ) == "persistent-storage:persistent-storage" and root_disk.get(
+ "size-of-storage"
+ ):
+ persistent_root_disk[vsd["id"]] = {
+ "image_id": vdu.get("sw-image-desc"),
+ "size": root_disk["size-of-storage"],
+ }
+ disk_list.append(persistent_root_disk[vsd["id"]])
+
+ if target_vdu.get("virtual-storages"):
+ for disk in target_vdu["virtual-storages"]:
+ if (
+ disk.get("type-of-storage")
+ == "persistent-storage:persistent-storage"
+ and disk["id"] not in persistent_root_disk.keys()
+ ):
+ disk_list.append({"size": disk["size-of-storage"]})
+
+ affinity_group_list = []
+
+ if target_vdu.get("affinity-or-anti-affinity-group-id"):
+ affinity_group = {}
+ for affinity_group_id in target_vdu["affinity-or-anti-affinity-group-id"]:
+ affinity_group_text = (
+ ns_preffix + ":affinity-or-anti-affinity-group." + affinity_group_id
+ )
+
+ extra_dict["depends_on"].append(affinity_group_text)
+ affinity_group["affinity_group_id"] = "TASK-" + affinity_group_text
+ affinity_group_list.append(affinity_group)
+
+ extra_dict["params"] = {
+ "name": "{}-{}-{}-{}".format(
+ indata["name"][:16],
+ vnfr["member-vnf-index-ref"][:16],
+ target_vdu["vdu-name"][:32],
+ target_vdu.get("count-index") or 0,
+ ),
+ "description": target_vdu["vdu-name"],
+ "start": True,
+ "image_id": "TASK-" + image_text,
+ "flavor_id": "TASK-" + flavor_text,
+ "affinity_group_list": affinity_group_list,
+ "net_list": net_list,
+ "cloud_config": cloud_config or None,
+ "disk_list": disk_list,
+ "availability_zone_index": None, # TODO
+ "availability_zone_list": None, # TODO
+ }
+
+ return extra_dict
+
+ @staticmethod
+ def _process_affinity_group_params(
+ target_affinity_group: Dict[str, Any],
+ indata: Dict[str, Any],
+ vim_info: Dict[str, Any],
+ target_record_id: str,
+ **kwargs: Dict[str, Any],
+ ) -> Dict[str, Any]:
+ """Get affinity or anti-affinity group parameters.
+
+ Args:
+ target_affinity_group (Dict[str, Any]): [description]
+ indata (Dict[str, Any]): [description]
+ vim_info (Dict[str, Any]): [description]
+ target_record_id (str): [description]
+
+ Returns:
+ Dict[str, Any]: [description]
+ """
+
+ extra_dict = {}
+ affinity_group_data = {
+ "name": target_affinity_group["name"],
+ "type": target_affinity_group["type"],
+ "scope": target_affinity_group["scope"],
+ }
+
+ if target_affinity_group.get("vim-affinity-group-id"):
+ affinity_group_data["vim-affinity-group-id"] = target_affinity_group[
+ "vim-affinity-group-id"
+ ]
+
+ extra_dict["params"] = {
+ "affinity_group_data": affinity_group_data,
+ }
+
+ return extra_dict
+
+ @staticmethod
+ def _process_recreate_vdu_params(
+ existing_vdu: Dict[str, Any],
+ db_nsr: Dict[str, Any],
+ vim_info: Dict[str, Any],
+ target_record_id: str,
+ target_id: str,
+ **kwargs: Dict[str, Any],
+ ) -> Dict[str, Any]:
+ """Function to process VDU parameters to recreate.
+
+ Args:
+ existing_vdu (Dict[str, Any]): [description]
+ db_nsr (Dict[str, Any]): [description]
+ vim_info (Dict[str, Any]): [description]
+ target_record_id (str): [description]
+ target_id (str): [description]
+
+ Returns:
+ Dict[str, Any]: [description]
+ """
+ vnfr = kwargs.get("vnfr")
+ vdu2cloud_init = kwargs.get("vdu2cloud_init")
+ # logger = kwargs.get("logger")
+ db = kwargs.get("db")
+ fs = kwargs.get("fs")
+ ro_nsr_public_key = kwargs.get("ro_nsr_public_key")
+
+ extra_dict = {}
+ net_list = []
+
+ vim_details = {}
+ vim_details_text = existing_vdu["vim_info"][target_id].get("vim_details", None)
+ if vim_details_text:
+ vim_details = yaml.safe_load(f"{vim_details_text}")
+
+ for iface_index, interface in enumerate(existing_vdu["interfaces"]):
+
+ if "port-security-enabled" in interface:
+ interface["port_security"] = interface.pop("port-security-enabled")
+
+ if "port-security-disable-strategy" in interface:
+ interface["port_security_disable_strategy"] = interface.pop(
+ "port-security-disable-strategy"
+ )
+
+ net_item = {
+ x: v
+ for x, v in interface.items()
+ if x
+ in (
+ "name",
+ "vpci",
+ "port_security",
+ "port_security_disable_strategy",
+ "floating_ip",
+ )
+ }
+ existing_ifaces = existing_vdu["vim_info"][target_id].get(
+ "interfaces_backup", []
+ )
+ net_id = next(
+ (
+ i["vim_net_id"]
+ for i in existing_ifaces
+ if i["ip_address"] == interface["ip-address"]
+ ),
+ None,
+ )
+
+ net_item["net_id"] = net_id
+ net_item["type"] = "virtual"
+
+ # TODO mac_address: used for SR-IOV ifaces #TODO for other types
+ # TODO floating_ip: True/False (or it can be None)
+ if interface.get("type") in ("SR-IOV", "PCI-PASSTHROUGH"):
+ net_item["use"] = "data"
+ net_item["model"] = interface["type"]
+ net_item["type"] = interface["type"]
+ elif (
+ interface.get("type") == "OM-MGMT"
+ or interface.get("mgmt-interface")
+ or interface.get("mgmt-vnf")
+ ):
+ net_item["use"] = "mgmt"
+ else:
+ # if interface.get("type") in ("VIRTIO", "E1000", "PARAVIRT"):
+ net_item["use"] = "bridge"
+ net_item["model"] = interface.get("type")
+
+ if interface.get("ip-address"):
+ net_item["ip_address"] = interface["ip-address"]
+
+ if interface.get("mac-address"):
+ net_item["mac_address"] = interface["mac-address"]
+
+ net_list.append(net_item)
+
+ if interface.get("mgmt-vnf"):
+ extra_dict["mgmt_vnf_interface"] = iface_index
+ elif interface.get("mgmt-interface"):
+ extra_dict["mgmt_vdu_interface"] = iface_index
+
+ # cloud config
+ cloud_config = {}
+
+ if existing_vdu.get("cloud-init"):
+ if existing_vdu["cloud-init"] not in vdu2cloud_init:
+ vdu2cloud_init[existing_vdu["cloud-init"]] = Ns._get_cloud_init(
+ db=db,
+ fs=fs,
+ location=existing_vdu["cloud-init"],
+ )
+
+ cloud_content_ = vdu2cloud_init[existing_vdu["cloud-init"]]
+ cloud_config["user-data"] = Ns._parse_jinja2(
+ cloud_init_content=cloud_content_,
+ params=existing_vdu.get("additionalParams"),
+ context=existing_vdu["cloud-init"],
+ )
+
+ if existing_vdu.get("boot-data-drive"):
+ cloud_config["boot-data-drive"] = existing_vdu.get("boot-data-drive")
+
+ ssh_keys = []
+
+ if existing_vdu.get("ssh-keys"):
+ ssh_keys += existing_vdu.get("ssh-keys")
+
+ if existing_vdu.get("ssh-access-required"):
+ ssh_keys.append(ro_nsr_public_key)
+
+ if ssh_keys:
+ cloud_config["key-pairs"] = ssh_keys
+
+ disk_list = []
+ for vol_id in vim_details.get("os-extended-volumes:volumes_attached", []):
+ disk_list.append({"vim_id": vol_id["id"]})
+
+ affinity_group_list = []
+
+ if existing_vdu.get("affinity-or-anti-affinity-group-id"):
+ affinity_group = {}
+ for affinity_group_id in existing_vdu["affinity-or-anti-affinity-group-id"]:
+ for group in db_nsr.get("affinity-or-anti-affinity-group"):
+ if (
+ group["id"] == affinity_group_id
+ and group["vim_info"][target_id].get("vim_id", None) is not None
+ ):
+ affinity_group["affinity_group_id"] = group["vim_info"][
+ target_id
+ ].get("vim_id", None)
+ affinity_group_list.append(affinity_group)
+
+ extra_dict["params"] = {
+ "name": "{}-{}-{}-{}".format(
+ db_nsr["name"][:16],
+ vnfr["member-vnf-index-ref"][:16],
+ existing_vdu["vdu-name"][:32],
+ existing_vdu.get("count-index") or 0,
+ ),
+ "description": existing_vdu["vdu-name"],
+ "start": True,
+ "image_id": vim_details["image"]["id"],
+ "flavor_id": vim_details["flavor"]["id"],
+ "affinity_group_list": affinity_group_list,
+ "net_list": net_list,
+ "cloud_config": cloud_config or None,
+ "disk_list": disk_list,
+ "availability_zone_index": None, # TODO
+ "availability_zone_list": None, # TODO
+ }
+
+ return extra_dict
+
+ def calculate_diff_items(
+ self,
+ indata,
+ db_nsr,
+ db_ro_nsr,
+ db_nsr_update,
+ item,
+ tasks_by_target_record_id,
+ action_id,
+ nsr_id,
+ task_index,
+ vnfr_id=None,
+ vnfr=None,
+ ):
+ """Function that returns the incremental changes (creation, deletion)
+ related to a specific item `item` to be done. This function should be
+ called for NS instantiation, NS termination, NS update to add a new VNF
+ or a new VLD, remove a VNF or VLD, etc.
+ Item can be `net`, `flavor`, `image` or `vdu`.
+ It takes a list of target items from indata (which came from the REST API)
+ and compares with the existing items from db_ro_nsr, identifying the
+ incremental changes to be done. During the comparison, it calls the method
+ `process_params` (which was passed as parameter, and is particular for each
+ `item`)
+
+ Args:
+ indata (Dict[str, Any]): deployment info
+ db_nsr: NSR record from DB
+ db_ro_nsr (Dict[str, Any]): record from "ro_nsrs"
+ db_nsr_update (Dict[str, Any]): NSR info to update in DB
+ item (str): element to process (net, vdu...)
+ tasks_by_target_record_id (Dict[str, Any]):
+ [<target_record_id>, <task>]
+ action_id (str): action id
+ nsr_id (str): NSR id
+ task_index (number): task index to add to task name
+ vnfr_id (str): VNFR id
+ vnfr (Dict[str, Any]): VNFR info
+
+ Returns:
+ List: list with the incremental changes (deletes, creates) for each item
+ number: current task index
+ """
+
+ diff_items = []
+ db_path = ""
+ db_record = ""
+ target_list = []
+ existing_list = []
+ process_params = None
+ vdu2cloud_init = indata.get("cloud_init_content") or {}
+ ro_nsr_public_key = db_ro_nsr["public_key"]
+
+ # According to the type of item, the path, the target_list,
+ # the existing_list and the method to process params are set
+ db_path = self.db_path_map[item]
+ process_params = self.process_params_function_map[item]
+ if item in ("net", "vdu"):
+ # This case is specific for the NS VLD (not applied to VDU)
+ if vnfr is None:
+ db_record = "nsrs:{}:{}".format(nsr_id, db_path)
+ target_list = indata.get("ns", []).get(db_path, [])
+ existing_list = db_nsr.get(db_path, [])
+ # This case is common for VNF VLDs and VNF VDUs
+ else:
+ db_record = "vnfrs:{}:{}".format(vnfr_id, db_path)
+ target_vnf = next(
+ (vnf for vnf in indata.get("vnf", ()) if vnf["_id"] == vnfr_id),
+ None,
+ )
+ target_list = target_vnf.get(db_path, []) if target_vnf else []
+ existing_list = vnfr.get(db_path, [])
+ elif item in ("image", "flavor", "affinity-or-anti-affinity-group"):
+ db_record = "nsrs:{}:{}".format(nsr_id, db_path)
+ target_list = indata.get(item, [])
+ existing_list = db_nsr.get(item, [])
+ else:
+ raise NsException("Item not supported: {}", item)
+
+ # ensure all the target_list elements has an "id". If not assign the index as id
+ if target_list is None:
+ target_list = []
+ for target_index, tl in enumerate(target_list):
+ if tl and not tl.get("id"):
+ tl["id"] = str(target_index)
+
+ # step 1 items (networks,vdus,...) to be deleted/updated
+ for item_index, existing_item in enumerate(existing_list):
+ target_item = next(
+ (t for t in target_list if t["id"] == existing_item["id"]),
+ None,
+ )
+
+ for target_vim, existing_viminfo in existing_item.get(
+ "vim_info", {}
+ ).items():
+ if existing_viminfo is None:
+ continue
+
+ if target_item:
+ target_viminfo = target_item.get("vim_info", {}).get(target_vim)
+ else:
+ target_viminfo = None
+
+ if target_viminfo is None:
+ # must be deleted
+ self._assign_vim(target_vim)
+ target_record_id = "{}.{}".format(db_record, existing_item["id"])
+ item_ = item
+
+ if target_vim.startswith("sdn") or target_vim.startswith("wim"):
+ # item must be sdn-net instead of net if target_vim is a sdn
+ item_ = "sdn_net"
+ target_record_id += ".sdn"
+
+ deployment_info = {
+ "action_id": action_id,
+ "nsr_id": nsr_id,
+ "task_index": task_index,
+ }
+
+ diff_items.append(
+ {
+ "deployment_info": deployment_info,
+ "target_id": target_vim,
+ "item": item_,
+ "action": "DELETE",
+ "target_record": f"{db_record}.{item_index}.vim_info.{target_vim}",
+ "target_record_id": target_record_id,
+ }
+ )
+ task_index += 1
+
+ # step 2 items (networks,vdus,...) to be created
+ for target_item in target_list:
+ item_index = -1
+
+ for item_index, existing_item in enumerate(existing_list):
+ if existing_item["id"] == target_item["id"]:
+ break
+ else:
+ item_index += 1
+ db_nsr_update[db_path + ".{}".format(item_index)] = target_item
+ existing_list.append(target_item)
+ existing_item = None
+
+ for target_vim, target_viminfo in target_item.get("vim_info", {}).items():
+ existing_viminfo = None
+
+ if existing_item:
+ existing_viminfo = existing_item.get("vim_info", {}).get(target_vim)
+
+ if existing_viminfo is not None:
+ continue
+
+ target_record_id = "{}.{}".format(db_record, target_item["id"])
+ item_ = item
+
+ if target_vim.startswith("sdn") or target_vim.startswith("wim"):
+ # item must be sdn-net instead of net if target_vim is a sdn
+ item_ = "sdn_net"
+ target_record_id += ".sdn"
+
+ kwargs = {}
+ self.logger.warning(
+ "ns.calculate_diff_items target_item={}".format(target_item)
+ )
+ if process_params == Ns._process_flavor_params:
+ kwargs.update(
+ {
+ "db": self.db,
+ }
+ )
+ self.logger.warning(
+ "calculate_diff_items for flavor kwargs={}".format(kwargs)
+ )
+
+ if process_params == Ns._process_vdu_params:
+ self.logger.warning(
+ "calculate_diff_items self.fs={}".format(self.fs)
+ )
+ kwargs.update(
+ {
+ "vnfr_id": vnfr_id,
+ "nsr_id": nsr_id,
+ "vnfr": vnfr,
+ "vdu2cloud_init": vdu2cloud_init,
+ "tasks_by_target_record_id": tasks_by_target_record_id,
+ "logger": self.logger,
+ "db": self.db,
+ "fs": self.fs,
+ "ro_nsr_public_key": ro_nsr_public_key,
+ }
+ )
+ self.logger.warning("calculate_diff_items kwargs={}".format(kwargs))
+
+ extra_dict = process_params(
+ target_item,
+ indata,
+ target_viminfo,
+ target_record_id,
+ **kwargs,
+ )
+ self._assign_vim(target_vim)
+
+ deployment_info = {
+ "action_id": action_id,
+ "nsr_id": nsr_id,
+ "task_index": task_index,
+ }
+
+ new_item = {
+ "deployment_info": deployment_info,
+ "target_id": target_vim,
+ "item": item_,
+ "action": "CREATE",
+ "target_record": f"{db_record}.{item_index}.vim_info.{target_vim}",
+ "target_record_id": target_record_id,
+ "extra_dict": extra_dict,
+ "common_id": target_item.get("common_id", None),
+ }
+ diff_items.append(new_item)
+ tasks_by_target_record_id[target_record_id] = new_item
+ task_index += 1
+
+ db_nsr_update[db_path + ".{}".format(item_index)] = target_item
+
+ return diff_items, task_index
+
+ def calculate_all_differences_to_deploy(
+ self,
+ indata,
+ nsr_id,
+ db_nsr,
+ db_vnfrs,
+ db_ro_nsr,
+ db_nsr_update,
+ db_vnfrs_update,
+ action_id,
+ tasks_by_target_record_id,
+ ):
+ """This method calculates the ordered list of items (`changes_list`)
+ to be created and deleted.
+
+ Args:
+ indata (Dict[str, Any]): deployment info
+ nsr_id (str): NSR id
+ db_nsr: NSR record from DB
+ db_vnfrs: VNFRS record from DB
+ db_ro_nsr (Dict[str, Any]): record from "ro_nsrs"
+ db_nsr_update (Dict[str, Any]): NSR info to update in DB
+ db_vnfrs_update (Dict[str, Any]): VNFRS info to update in DB
+ action_id (str): action id
+ tasks_by_target_record_id (Dict[str, Any]):
+ [<target_record_id>, <task>]
+
+ Returns:
+ List: ordered list of items to be created and deleted.
+ """
+
+ task_index = 0
+ # set list with diffs:
+ changes_list = []
+
+ # NS vld, image and flavor
+ for item in ["net", "image", "flavor", "affinity-or-anti-affinity-group"]:
+ self.logger.debug("process NS={} {}".format(nsr_id, item))
+ diff_items, task_index = self.calculate_diff_items(
+ indata=indata,
+ db_nsr=db_nsr,
+ db_ro_nsr=db_ro_nsr,
+ db_nsr_update=db_nsr_update,
+ item=item,
+ tasks_by_target_record_id=tasks_by_target_record_id,
+ action_id=action_id,
+ nsr_id=nsr_id,
+ task_index=task_index,
+ vnfr_id=None,
+ )
+ changes_list += diff_items
+
+ # VNF vlds and vdus
+ for vnfr_id, vnfr in db_vnfrs.items():
+ # vnfr_id need to be set as global variable for among others nested method _process_vdu_params
+ for item in ["net", "vdu"]:
+ self.logger.debug("process VNF={} {}".format(vnfr_id, item))
+ diff_items, task_index = self.calculate_diff_items(
+ indata=indata,
+ db_nsr=db_nsr,
+ db_ro_nsr=db_ro_nsr,
+ db_nsr_update=db_vnfrs_update[vnfr["_id"]],
+ item=item,
+ tasks_by_target_record_id=tasks_by_target_record_id,
+ action_id=action_id,
+ nsr_id=nsr_id,
+ task_index=task_index,
+ vnfr_id=vnfr_id,
+ vnfr=vnfr,
+ )
+ changes_list += diff_items
+
+ return changes_list
+
+ def define_all_tasks(
+ self,
+ changes_list,
+ db_new_tasks,
+ tasks_by_target_record_id,
+ ):
+ """Function to create all the task structures obtanied from
+ the method calculate_all_differences_to_deploy
+
+ Args:
+ changes_list (List): ordered list of items to be created or deleted
+ db_new_tasks (List): tasks list to be created
+ action_id (str): action id
+ tasks_by_target_record_id (Dict[str, Any]):
+ [<target_record_id>, <task>]
+
+ """
+
+ for change in changes_list:
+ task = Ns._create_task(
+ deployment_info=change["deployment_info"],
+ target_id=change["target_id"],
+ item=change["item"],
+ action=change["action"],
+ target_record=change["target_record"],
+ target_record_id=change["target_record_id"],
+ extra_dict=change.get("extra_dict", None),
+ )
+
+ self.logger.warning("ns.define_all_tasks task={}".format(task))
+ tasks_by_target_record_id[change["target_record_id"]] = task
+ db_new_tasks.append(task)
+
+ if change.get("common_id"):
+ task["common_id"] = change["common_id"]
+
+ def upload_all_tasks(
+ self,
+ db_new_tasks,
+ now,
+ ):
+ """Function to save all tasks in the common DB
+
+ Args:
+ db_new_tasks (List): tasks list to be created
+ now (time): current time
+
+ """
+
+ nb_ro_tasks = 0 # for logging
+
+ for db_task in db_new_tasks:
+ target_id = db_task.pop("target_id")
+ common_id = db_task.get("common_id")
+
+ # Do not chek tasks with vim_status DELETED
+ # because in manual heealing there are two tasks for the same vdur:
+ # one with vim_status deleted and the other one with the actual VM status.
+
+ if common_id:
+ if self.db.set_one(
+ "ro_tasks",
+ q_filter={
+ "target_id": target_id,
+ "tasks.common_id": common_id,
+ "vim_info.vim_status.ne": "DELETED",
+ },
+ update_dict={"to_check_at": now, "modified_at": now},
+ push={"tasks": db_task},
+ fail_on_empty=False,
+ ):
+ continue
+
+ if not self.db.set_one(
+ "ro_tasks",
+ q_filter={
+ "target_id": target_id,
+ "tasks.target_record": db_task["target_record"],
+ "vim_info.vim_status.ne": "DELETED",
+ },
+ update_dict={"to_check_at": now, "modified_at": now},
+ push={"tasks": db_task},
+ fail_on_empty=False,
+ ):
+ # Create a ro_task
+ self.logger.debug("Updating database, Creating ro_tasks")
+ db_ro_task = Ns._create_ro_task(target_id, db_task)
+ nb_ro_tasks += 1
+ self.db.create("ro_tasks", db_ro_task)
+
+ self.logger.debug(
+ "Created {} ro_tasks; {} tasks - db_new_tasks={}".format(
+ nb_ro_tasks, len(db_new_tasks), db_new_tasks
+ )
+ )
+
+ def upload_recreate_tasks(
+ self,
+ db_new_tasks,
+ now,
+ ):
+ """Function to save recreate tasks in the common DB
+
+ Args:
+ db_new_tasks (List): tasks list to be created
+ now (time): current time
+
+ """
+
+ nb_ro_tasks = 0 # for logging
+
+ for db_task in db_new_tasks:
+ target_id = db_task.pop("target_id")
+ self.logger.warning("target_id={} db_task={}".format(target_id, db_task))
+
+ action = db_task.get("action", None)
+
+ # Create a ro_task
+ self.logger.debug("Updating database, Creating ro_tasks")
+ db_ro_task = Ns._create_ro_task(target_id, db_task)
+
+ # If DELETE task: the associated created items should be removed
+ # (except persistent volumes):
+ if action == "DELETE":
+ db_ro_task["vim_info"]["created"] = True
+ db_ro_task["vim_info"]["created_items"] = db_task.get(
+ "created_items", {}
+ )
+ db_ro_task["vim_info"]["volumes_to_hold"] = db_task.get(
+ "volumes_to_hold", []
+ )
+ db_ro_task["vim_info"]["vim_id"] = db_task.get("vim_id", None)
+
+ nb_ro_tasks += 1
+ self.logger.warning("upload_all_tasks db_ro_task={}".format(db_ro_task))
+ self.db.create("ro_tasks", db_ro_task)
+
+ self.logger.debug(
+ "Created {} ro_tasks; {} tasks - db_new_tasks={}".format(
+ nb_ro_tasks, len(db_new_tasks), db_new_tasks
+ )
+ )
+
+ def _prepare_created_items_for_healing(
+ self,
+ nsr_id,
+ target_record,
+ ):
+ created_items = {}
+ # Get created_items from ro_task
+ ro_tasks = self.db.get_list("ro_tasks", {"tasks.nsr_id": nsr_id})
+ for ro_task in ro_tasks:
+ for task in ro_task["tasks"]:
+ if (
+ task["target_record"] == target_record
+ and task["action"] == "CREATE"
+ and ro_task["vim_info"]["created_items"]
+ ):
+ created_items = ro_task["vim_info"]["created_items"]
+ break
+
+ return created_items
+
+ def _prepare_persistent_volumes_for_healing(
+ self,
+ target_id,
+ existing_vdu,
+ ):
+ # The associated volumes of the VM shouldn't be removed
+ volumes_list = []
+ vim_details = {}
+ vim_details_text = existing_vdu["vim_info"][target_id].get("vim_details", None)
+ if vim_details_text:
+ vim_details = yaml.safe_load(f"{vim_details_text}")
+
+ for vol_id in vim_details.get("os-extended-volumes:volumes_attached", []):
+ volumes_list.append(vol_id["id"])
+
+ return volumes_list
+
+ def prepare_changes_to_recreate(
+ self,
+ indata,
+ nsr_id,
+ db_nsr,
+ db_vnfrs,
+ db_ro_nsr,
+ action_id,
+ tasks_by_target_record_id,
+ ):
+ """This method will obtain an ordered list of items (`changes_list`)
+ to be created and deleted to meet the recreate request.
+ """
+
+ self.logger.debug(
+ "ns.prepare_changes_to_recreate nsr_id={} indata={}".format(nsr_id, indata)
+ )
+
+ task_index = 0
+ # set list with diffs:
+ changes_list = []
+ db_path = self.db_path_map["vdu"]
+ target_list = indata.get("healVnfData", {})
+ vdu2cloud_init = indata.get("cloud_init_content") or {}
+ ro_nsr_public_key = db_ro_nsr["public_key"]
+
+ # Check each VNF of the target
+ for target_vnf in target_list:
+ # Find this VNF in the list from DB
+ vnfr_id = target_vnf.get("vnfInstanceId", None)
+ if vnfr_id:
+ existing_vnf = db_vnfrs.get(vnfr_id)
+ db_record = "vnfrs:{}:{}".format(vnfr_id, db_path)
+ # vim_account_id = existing_vnf.get("vim-account-id", "")
+
+ # Check each VDU of this VNF
+ for target_vdu in target_vnf["additionalParams"].get("vdu", None):
+ vdu_name = target_vdu.get("vdu-id", None)
+ # For multi instance VDU count-index is mandatory
+ # For single session VDU count-indes is 0
+ count_index = target_vdu.get("count-index", 0)
+ item_index = 0
+ existing_instance = None
+ for instance in existing_vnf.get("vdur", None):
+ if (
+ instance["vdu-name"] == vdu_name
+ and instance["count-index"] == count_index
+ ):
+ existing_instance = instance
+ break
+ else:
+ item_index += 1
+
+ target_record_id = "{}.{}".format(db_record, existing_instance["id"])
+
+ # The target VIM is the one already existing in DB to recreate
+ for target_vim, target_viminfo in existing_instance.get(
+ "vim_info", {}
+ ).items():
+ # step 1 vdu to be deleted
+ self._assign_vim(target_vim)
+ deployment_info = {
+ "action_id": action_id,
+ "nsr_id": nsr_id,
+ "task_index": task_index,
+ }
+
+ target_record = f"{db_record}.{item_index}.vim_info.{target_vim}"
+ created_items = self._prepare_created_items_for_healing(
+ nsr_id, target_record
+ )
+
+ volumes_to_hold = self._prepare_persistent_volumes_for_healing(
+ target_vim, existing_instance
+ )
+
+ # Specific extra params for recreate tasks:
+ extra_dict = {
+ "created_items": created_items,
+ "vim_id": existing_instance["vim-id"],
+ "volumes_to_hold": volumes_to_hold,
+ }
+
+ changes_list.append(
+ {
+ "deployment_info": deployment_info,
+ "target_id": target_vim,
+ "item": "vdu",
+ "action": "DELETE",
+ "target_record": target_record,
+ "target_record_id": target_record_id,
+ "extra_dict": extra_dict,
+ }
+ )
+ delete_task_id = f"{action_id}:{task_index}"
+ task_index += 1
+
+ # step 2 vdu to be created
+ kwargs = {}
+ kwargs.update(
+ {
+ "vnfr_id": vnfr_id,
+ "nsr_id": nsr_id,
+ "vnfr": existing_vnf,
+ "vdu2cloud_init": vdu2cloud_init,
+ "tasks_by_target_record_id": tasks_by_target_record_id,
+ "logger": self.logger,
+ "db": self.db,
+ "fs": self.fs,
+ "ro_nsr_public_key": ro_nsr_public_key,
+ }
+ )
+
+ extra_dict = self._process_recreate_vdu_params(
+ existing_instance,
+ db_nsr,
+ target_viminfo,
+ target_record_id,
+ target_vim,
+ **kwargs,
+ )
+
+ # The CREATE task depens on the DELETE task
+ extra_dict["depends_on"] = [delete_task_id]
+
+ # Add volumes created from created_items if any
+ # Ports should be deleted with delete task and automatically created with create task
+ volumes = {}
+ for k, v in created_items.items():
+ try:
+ k_item, _, k_id = k.partition(":")
+ if k_item == "volume":
+ volumes[k] = v
+ except Exception as e:
+ self.logger.error(
+ "Error evaluating created item {}: {}".format(k, e)
+ )
+ extra_dict["previous_created_volumes"] = volumes
+
+ deployment_info = {
+ "action_id": action_id,
+ "nsr_id": nsr_id,
+ "task_index": task_index,
+ }
+ self._assign_vim(target_vim)
+
+ new_item = {
+ "deployment_info": deployment_info,
+ "target_id": target_vim,
+ "item": "vdu",
+ "action": "CREATE",
+ "target_record": target_record,
+ "target_record_id": target_record_id,
+ "extra_dict": extra_dict,
+ }
+ changes_list.append(new_item)
+ tasks_by_target_record_id[target_record_id] = new_item
+ task_index += 1
+
+ return changes_list
+
+ def recreate(self, session, indata, version, nsr_id, *args, **kwargs):
+ self.logger.debug("ns.recreate nsr_id={} indata={}".format(nsr_id, indata))
+ # TODO: validate_input(indata, recreate_schema)
+ action_id = indata.get("action_id", str(uuid4()))
+ # get current deployment
+ db_vnfrs = {} # vnf's info indexed by _id
+ step = ""
+ logging_text = "Recreate nsr_id={} action_id={} indata={}".format(
+ nsr_id, action_id, indata
+ )
+ self.logger.debug(logging_text + "Enter")