fix/feat(relations): external connection point ref now works with multiple KDU
[osm/LCM.git] / osm_lcm / ns.py
index dddf99f..443a09e 100644 (file)
@@ -22,26 +22,42 @@ import logging
 import logging.handlers
 import traceback
 import json
-from jinja2 import Environment, Template, meta, TemplateError, TemplateNotFound, TemplateSyntaxError
+from jinja2 import Environment, TemplateError, TemplateNotFound, StrictUndefined, UndefinedError
 
 from osm_lcm import ROclient
+from osm_lcm.ng_ro import NgRoClient, NgRoException
 from osm_lcm.lcm_utils import LcmException, LcmExceptionNoMgmtIP, LcmBase, deep_get, get_iterable, populate_dict
+from osm_lcm.data_utils.nsd import get_vnf_profiles
+from osm_lcm.data_utils.vnfd import get_vdu_list, get_vdu_profile, \
+    get_ee_sorted_initial_config_primitive_list, get_ee_sorted_terminate_config_primitive_list, \
+    get_kdu_list, get_virtual_link_profiles, get_vdu, get_configuration, \
+    get_vdu_index, get_scaling_aspect, get_number_of_instances, get_juju_ee_ref
+from osm_lcm.data_utils.list_utils import find_in_list
+from osm_lcm.data_utils.vnfr import get_osm_params, get_vdur_index
+from osm_lcm.data_utils.dict_utils import parse_yaml_strings
+from osm_lcm.data_utils.database.vim_account import VimAccountDB
 from n2vc.k8s_helm_conn import K8sHelmConnector
+from n2vc.k8s_helm3_conn import K8sHelm3Connector
 from n2vc.k8s_juju_conn import K8sJujuConnector
 
 from osm_common.dbbase import DbException
 from osm_common.fsbase import FsException
 
+from osm_lcm.data_utils.database.database import Database
+from osm_lcm.data_utils.filesystem.filesystem import Filesystem
+
 from n2vc.n2vc_juju_conn import N2VCJujuConnector
 from n2vc.exceptions import N2VCException, N2VCNotFound, K8sException
 
+from osm_lcm.lcm_helm_conn import LCMHelmConn
+
 from copy import copy, deepcopy
-from http import HTTPStatus
 from time import time
 from uuid import uuid4
-from functools import partial
 
-__author__ = "Alfonso Tierno"
+from random import randint
+
+__author__ = "Alfonso Tierno <alfonso.tiernosepulveda@telefonica.com>"
 
 
 class NsLcm(LcmBase):
@@ -49,48 +65,62 @@ class NsLcm(LcmBase):
     timeout_ns_deploy = 2 * 3600   # default global timeout for deployment a ns
     timeout_ns_terminate = 1800   # default global timeout for un deployment a ns
     timeout_charm_delete = 10 * 60
-    timeout_primitive = 10 * 60  # timeout for primitive execution
-    timeout_progress_primitive = 2 * 60  # timeout for some progress in a primitive execution
+    timeout_primitive = 30 * 60  # timeout for primitive execution
+    timeout_progress_primitive = 10 * 60  # timeout for some progress in a primitive execution
 
     SUBOPERATION_STATUS_NOT_FOUND = -1
     SUBOPERATION_STATUS_NEW = -2
     SUBOPERATION_STATUS_SKIP = -3
     task_name_deploy_vca = "Deploying VCA"
 
-    def __init__(self, db, msg, fs, lcm_tasks, config, loop):
+    def __init__(self, msg, lcm_tasks, config, loop, prometheus=None):
         """
         Init, Connect to database, filesystem storage, and messaging
         :param config: two level dictionary with configuration. Top level should contain 'database', 'storage',
         :return: None
         """
         super().__init__(
-            db=db,
             msg=msg,
-            fs=fs,
             logger=logging.getLogger('lcm.ns')
         )
 
+        self.db = Database().instance.db
+        self.fs = Filesystem().instance.fs
         self.loop = loop
         self.lcm_tasks = lcm_tasks
         self.timeout = config["timeout"]
         self.ro_config = config["ro_config"]
+        self.ng_ro = config["ro_config"].get("ng")
         self.vca_config = config["VCA"].copy()
 
         # create N2VC connector
         self.n2vc = N2VCJujuConnector(
-            db=self.db,
+            log=self.logger,
+            loop=self.loop,
+            on_update_db=self._on_update_n2vc_db,
             fs=self.fs,
+            db=self.db
+        )
+
+        self.conn_helm_ee = LCMHelmConn(
             log=self.logger,
             loop=self.loop,
-            url='{}:{}'.format(self.vca_config['host'], self.vca_config['port']),
-            username=self.vca_config.get('user', None),
             vca_config=self.vca_config,
             on_update_db=self._on_update_n2vc_db
         )
 
-        self.k8sclusterhelm = K8sHelmConnector(
+        self.k8sclusterhelm2 = K8sHelmConnector(
             kubectl_command=self.vca_config.get("kubectlpath"),
             helm_command=self.vca_config.get("helmpath"),
+            log=self.logger,
+            on_update_db=None,
+            fs=self.fs,
+            db=self.db
+        )
+
+        self.k8sclusterhelm3 = K8sHelm3Connector(
+            kubectl_command=self.vca_config.get("kubectlpath"),
+            helm_command=self.vca_config.get("helm3path"),
             fs=self.fs,
             log=self.logger,
             db=self.db,
@@ -100,20 +130,53 @@ class NsLcm(LcmBase):
         self.k8sclusterjuju = K8sJujuConnector(
             kubectl_command=self.vca_config.get("kubectlpath"),
             juju_command=self.vca_config.get("jujupath"),
-            fs=self.fs,
             log=self.logger,
-            db=self.db,
-            on_update_db=None,
+            loop=self.loop,
+            on_update_db=self._on_update_k8s_db,
+            fs=self.fs,
+            db=self.db
         )
 
         self.k8scluster_map = {
-            "helm-chart": self.k8sclusterhelm,
-            "chart": self.k8sclusterhelm,
+            "helm-chart": self.k8sclusterhelm2,
+            "helm-chart-v3": self.k8sclusterhelm3,
+            "chart": self.k8sclusterhelm3,
             "juju-bundle": self.k8sclusterjuju,
             "juju": self.k8sclusterjuju,
         }
+
+        self.vca_map = {
+            "lxc_proxy_charm": self.n2vc,
+            "native_charm": self.n2vc,
+            "k8s_proxy_charm": self.n2vc,
+            "helm": self.conn_helm_ee,
+            "helm-v3": self.conn_helm_ee
+        }
+
+        self.prometheus = prometheus
+
         # create RO client
-        self.RO = ROclient.ROClient(self.loop, **self.ro_config)
+        self.RO = NgRoClient(self.loop, **self.ro_config)
+
+    @staticmethod
+    def increment_ip_mac(ip_mac, vm_index=1):
+        if not isinstance(ip_mac, str):
+            return ip_mac
+        try:
+            # try with ipv4 look for last dot
+            i = ip_mac.rfind(".")
+            if i > 0:
+                i += 1
+                return "{}{}".format(ip_mac[:i], int(ip_mac[i:]) + vm_index)
+            # try with ipv6 or mac look for last colon. Operate in hex
+            i = ip_mac.rfind(":")
+            if i > 0:
+                i += 1
+                # format in hex, len can be 2 for mac or 4 for ipv6
+                return ("{}{:0" + str(len(ip_mac) - i) + "x}").format(ip_mac[:i], int(ip_mac[i:], 16) + vm_index)
+        except Exception:
+            pass
+        return None
 
     def _on_update_ro_db(self, nsrs_id, ro_descriptor):
 
@@ -131,7 +194,7 @@ class NsLcm(LcmBase):
         except Exception as e:
             self.logger.warn('Cannot write database RO deployment for ns={} -> {}'.format(nsrs_id, e))
 
-    async def _on_update_n2vc_db(self, table, filter, path, updated_data):
+    async def _on_update_n2vc_db(self, table, filter, path, updated_data, vca_id=None):
 
         # remove last dot from path (if exists)
         if path.endswith('.'):
@@ -139,7 +202,6 @@ class NsLcm(LcmBase):
 
         # self.logger.debug('_on_update_n2vc_db(table={}, filter={}, path={}, updated_data={}'
         #                   .format(table, filter, path, updated_data))
-
         try:
 
             nsr_id = filter.get('_id')
@@ -149,11 +211,12 @@ class NsLcm(LcmBase):
             current_ns_status = nsr.get('nsState')
 
             # get vca status for NS
-            status_dict = await self.n2vc.get_status(namespace='.' + nsr_id, yaml_format=False)
+            status_dict = await self.n2vc.get_status(namespace='.' + nsr_id, yaml_format=False, vca_id=vca_id)
 
             # vcaStatus
             db_dict = dict()
             db_dict['vcaStatus'] = status_dict
+            await self.n2vc.update_vca_status(db_dict['vcaStatus'], vca_id=vca_id)
 
             # update configurationStatus for this VCA
             try:
@@ -220,379 +283,193 @@ class NsLcm(LcmBase):
         except Exception as e:
             self.logger.warn('Error updating NS state for ns={}: {}'.format(nsr_id, e))
 
-    def vnfd2RO(self, vnfd, new_id=None, additionalParams=None, nsrId=None):
+    async def _on_update_k8s_db(self, cluster_uuid, kdu_instance, filter=None, vca_id=None):
         """
-        Converts creates a new vnfd descriptor for RO base on input OSM IM vnfd
-        :param vnfd: input vnfd
-        :param new_id: overrides vnf id if provided
-        :param additionalParams: Instantiation params for VNFs provided
-        :param nsrId: Id of the NSR
-        :return: copy of vnfd
+        Updating vca status in NSR record
+        :param cluster_uuid: UUID of a k8s cluster
+        :param kdu_instance: The unique name of the KDU instance
+        :param filter: To get nsr_id
+        :return: none
         """
+
+        # self.logger.debug("_on_update_k8s_db(cluster_uuid={}, kdu_instance={}, filter={}"
+        #                   .format(cluster_uuid, kdu_instance, filter))
+
         try:
-            vnfd_RO = deepcopy(vnfd)
-            # remove unused by RO configuration, monitoring, scaling and internal keys
-            vnfd_RO.pop("_id", None)
-            vnfd_RO.pop("_admin", None)
-            vnfd_RO.pop("vnf-configuration", None)
-            vnfd_RO.pop("monitoring-param", None)
-            vnfd_RO.pop("scaling-group-descriptor", None)
-            vnfd_RO.pop("kdu", None)
-            vnfd_RO.pop("k8s-cluster", None)
-            if new_id:
-                vnfd_RO["id"] = new_id
-
-            # parse cloud-init or cloud-init-file with the provided variables using Jinja2
-            for vdu in get_iterable(vnfd_RO, "vdu"):
-                cloud_init_file = None
-                if vdu.get("cloud-init-file"):
-                    base_folder = vnfd["_admin"]["storage"]
-                    cloud_init_file = "{}/{}/cloud_init/{}".format(base_folder["folder"], base_folder["pkg-dir"],
-                                                                   vdu["cloud-init-file"])
-                    with self.fs.file_open(cloud_init_file, "r") as ci_file:
-                        cloud_init_content = ci_file.read()
-                    vdu.pop("cloud-init-file", None)
-                elif vdu.get("cloud-init"):
-                    cloud_init_content = vdu["cloud-init"]
-                else:
-                    continue
+            nsr_id = filter.get('_id')
+
+            # get vca status for NS
+            vca_status = await self.k8sclusterjuju.status_kdu(
+                cluster_uuid,
+                kdu_instance,
+                complete_status=True,
+                yaml_format=False,
+                vca_id=vca_id,
+            )
+            # vcaStatus
+            db_dict = dict()
+            db_dict['vcaStatus'] = {nsr_id: vca_status}
 
-                env = Environment()
-                ast = env.parse(cloud_init_content)
-                mandatory_vars = meta.find_undeclared_variables(ast)
-                if mandatory_vars:
-                    for var in mandatory_vars:
-                        if not additionalParams or var not in additionalParams.keys():
-                            raise LcmException("Variable '{}' defined at vnfd[id={}]:vdu[id={}]:cloud-init/cloud-init-"
-                                               "file, must be provided in the instantiation parameters inside the "
-                                               "'additionalParamsForVnf' block".format(var, vnfd["id"], vdu["id"]))
-                template = Template(cloud_init_content)
-                cloud_init_content = template.render(additionalParams or {})
-                vdu["cloud-init"] = cloud_init_content
-
-            return vnfd_RO
+            await self.k8sclusterjuju.update_vca_status(
+                db_dict['vcaStatus'],
+                kdu_instance,
+                vca_id=vca_id,
+            )
+
+            # write to database
+            self.update_db_2("nsrs", nsr_id, db_dict)
+
+        except (asyncio.CancelledError, asyncio.TimeoutError):
+            raise
+        except Exception as e:
+            self.logger.warn('Error updating NS state for ns={}: {}'.format(nsr_id, e))
+
+    @staticmethod
+    def _parse_cloud_init(cloud_init_text, additional_params, vnfd_id, vdu_id):
+        try:
+            env = Environment(undefined=StrictUndefined)
+            template = env.from_string(cloud_init_text)
+            return template.render(additional_params or {})
+        except UndefinedError as e:
+            raise LcmException("Variable {} at vnfd[id={}]:vdu[id={}]:cloud-init/cloud-init-"
+                               "file, must be provided in the instantiation parameters inside the "
+                               "'additionalParamsForVnf/Vdu' block".format(e, vnfd_id, vdu_id))
+        except (TemplateError, TemplateNotFound) as e:
+            raise LcmException("Error parsing Jinja2 to cloud-init content at vnfd[id={}]:vdu[id={}]: {}".
+                               format(vnfd_id, vdu_id, e))
+
+    def _get_vdu_cloud_init_content(self, vdu, vnfd):
+        cloud_init_content = cloud_init_file = None
+        try:
+            if vdu.get("cloud-init-file"):
+                base_folder = vnfd["_admin"]["storage"]
+                cloud_init_file = "{}/{}/cloud_init/{}".format(base_folder["folder"], base_folder["pkg-dir"],
+                                                               vdu["cloud-init-file"])
+                with self.fs.file_open(cloud_init_file, "r") as ci_file:
+                    cloud_init_content = ci_file.read()
+            elif vdu.get("cloud-init"):
+                cloud_init_content = vdu["cloud-init"]
+
+            return cloud_init_content
         except FsException as e:
             raise LcmException("Error reading vnfd[id={}]:vdu[id={}]:cloud-init-file={}: {}".
                                format(vnfd["id"], vdu["id"], cloud_init_file, e))
-        except (TemplateError, TemplateNotFound, TemplateSyntaxError) as e:
-            raise LcmException("Error parsing Jinja2 to cloud-init content at vnfd[id={}]:vdu[id={}]: {}".
-                               format(vnfd["id"], vdu["id"], e))
 
-    def _ns_params_2_RO(self, ns_params, nsd, vnfd_dict, db_vnfrs, n2vc_key_list):
+    def _get_vdu_additional_params(self, db_vnfr, vdu_id):
+        vdur = next(vdur for vdur in db_vnfr.get("vdur") if vdu_id == vdur["vdu-id-ref"])
+        additional_params = vdur.get("additionalParams")
+        return parse_yaml_strings(additional_params)
+
+    def vnfd2RO(self, vnfd, new_id=None, additionalParams=None, nsrId=None):
         """
-        Creates a RO ns descriptor from OSM ns_instantiate params
-        :param ns_params: OSM instantiate params
-        :param vnfd_dict: database content of vnfds, indexed by id (not _id). {id: {vnfd_object}, ...}
-        :param db_vnfrs: database content of vnfrs, indexed by member-vnf-index. {member-vnf-index: {vnfr_object}, ...}
-        :return: The RO ns descriptor
+        Converts creates a new vnfd descriptor for RO base on input OSM IM vnfd
+        :param vnfd: input vnfd
+        :param new_id: overrides vnf id if provided
+        :param additionalParams: Instantiation params for VNFs provided
+        :param nsrId: Id of the NSR
+        :return: copy of vnfd
         """
-        vim_2_RO = {}
-        wim_2_RO = {}
-        # TODO feature 1417: Check that no instantiation is set over PDU
-        # check if PDU forces a concrete vim-network-id and add it
-        # check if PDU contains a SDN-assist info (dpid, switch, port) and pass it to RO
-
-        def vim_account_2_RO(vim_account):
-            if vim_account in vim_2_RO:
-                return vim_2_RO[vim_account]
-
-            db_vim = self.db.get_one("vim_accounts", {"_id": vim_account})
-            if db_vim["_admin"]["operationalState"] != "ENABLED":
-                raise LcmException("VIM={} is not available. operationalState={}".format(
-                    vim_account, db_vim["_admin"]["operationalState"]))
-            RO_vim_id = db_vim["_admin"]["deployed"]["RO"]
-            vim_2_RO[vim_account] = RO_vim_id
-            return RO_vim_id
-
-        def wim_account_2_RO(wim_account):
-            if isinstance(wim_account, str):
-                if wim_account in wim_2_RO:
-                    return wim_2_RO[wim_account]
-
-                db_wim = self.db.get_one("wim_accounts", {"_id": wim_account})
-                if db_wim["_admin"]["operationalState"] != "ENABLED":
-                    raise LcmException("WIM={} is not available. operationalState={}".format(
-                        wim_account, db_wim["_admin"]["operationalState"]))
-                RO_wim_id = db_wim["_admin"]["deployed"]["RO-account"]
-                wim_2_RO[wim_account] = RO_wim_id
-                return RO_wim_id
-            else:
-                return wim_account
-
-        def ip_profile_2_RO(ip_profile):
-            RO_ip_profile = deepcopy((ip_profile))
-            if "dns-server" in RO_ip_profile:
-                if isinstance(RO_ip_profile["dns-server"], list):
-                    RO_ip_profile["dns-address"] = []
-                    for ds in RO_ip_profile.pop("dns-server"):
-                        RO_ip_profile["dns-address"].append(ds['address'])
-                else:
-                    RO_ip_profile["dns-address"] = RO_ip_profile.pop("dns-server")
-            if RO_ip_profile.get("ip-version") == "ipv4":
-                RO_ip_profile["ip-version"] = "IPv4"
-            if RO_ip_profile.get("ip-version") == "ipv6":
-                RO_ip_profile["ip-version"] = "IPv6"
-            if "dhcp-params" in RO_ip_profile:
-                RO_ip_profile["dhcp"] = RO_ip_profile.pop("dhcp-params")
-            return RO_ip_profile
-
-        if not ns_params:
-            return None
-        RO_ns_params = {
-            # "name": ns_params["nsName"],
-            # "description": ns_params.get("nsDescription"),
-            "datacenter": vim_account_2_RO(ns_params["vimAccountId"]),
-            "wim_account": wim_account_2_RO(ns_params.get("wimAccountId")),
-            # "scenario": ns_params["nsdId"],
-        }
-        # set vim_account of each vnf if different from general vim_account.
-        # Get this information from <vnfr> database content, key vim-account-id
-        # Vim account can be set by placement_engine and it may be different from
-        # the instantiate parameters (vnfs.member-vnf-index.datacenter).
-        for vnf_index, vnfr in db_vnfrs.items():
-            if vnfr.get("vim-account-id") and vnfr["vim-account-id"] != ns_params["vimAccountId"]:
-                populate_dict(RO_ns_params, ("vnfs", vnf_index, "datacenter"), vim_account_2_RO(vnfr["vim-account-id"]))
-
-        n2vc_key_list = n2vc_key_list or []
-        for vnfd_ref, vnfd in vnfd_dict.items():
-            vdu_needed_access = []
-            mgmt_cp = None
-            if vnfd.get("vnf-configuration"):
-                ssh_required = deep_get(vnfd, ("vnf-configuration", "config-access", "ssh-access", "required"))
-                if ssh_required and vnfd.get("mgmt-interface"):
-                    if vnfd["mgmt-interface"].get("vdu-id"):
-                        vdu_needed_access.append(vnfd["mgmt-interface"]["vdu-id"])
-                    elif vnfd["mgmt-interface"].get("cp"):
-                        mgmt_cp = vnfd["mgmt-interface"]["cp"]
-
-            for vdu in vnfd.get("vdu", ()):
-                if vdu.get("vdu-configuration"):
-                    ssh_required = deep_get(vdu, ("vdu-configuration", "config-access", "ssh-access", "required"))
-                    if ssh_required:
-                        vdu_needed_access.append(vdu["id"])
-                elif mgmt_cp:
-                    for vdu_interface in vdu.get("interface"):
-                        if vdu_interface.get("external-connection-point-ref") and \
-                                vdu_interface["external-connection-point-ref"] == mgmt_cp:
-                            vdu_needed_access.append(vdu["id"])
-                            mgmt_cp = None
-                            break
+        vnfd_RO = deepcopy(vnfd)
+        # remove unused by RO configuration, monitoring, scaling and internal keys
+        vnfd_RO.pop("_id", None)
+        vnfd_RO.pop("_admin", None)
+        vnfd_RO.pop("monitoring-param", None)
+        vnfd_RO.pop("scaling-group-descriptor", None)
+        vnfd_RO.pop("kdu", None)
+        vnfd_RO.pop("k8s-cluster", None)
+        if new_id:
+            vnfd_RO["id"] = new_id
+
+        # parse cloud-init or cloud-init-file with the provided variables using Jinja2
+        for vdu in get_iterable(vnfd_RO, "vdu"):
+            vdu.pop("cloud-init-file", None)
+            vdu.pop("cloud-init", None)
+        return vnfd_RO
 
-            if vdu_needed_access:
-                for vnf_member in nsd.get("constituent-vnfd"):
-                    if vnf_member["vnfd-id-ref"] != vnfd_ref:
-                        continue
-                    for vdu in vdu_needed_access:
-                        populate_dict(RO_ns_params,
-                                      ("vnfs", vnf_member["member-vnf-index"], "vdus", vdu, "mgmt_keys"),
-                                      n2vc_key_list)
-
-        if ns_params.get("vduImage"):
-            RO_ns_params["vduImage"] = ns_params["vduImage"]
-
-        if ns_params.get("ssh_keys"):
-            RO_ns_params["cloud-config"] = {"key-pairs": ns_params["ssh_keys"]}
-        for vnf_params in get_iterable(ns_params, "vnf"):
-            for constituent_vnfd in nsd["constituent-vnfd"]:
-                if constituent_vnfd["member-vnf-index"] == vnf_params["member-vnf-index"]:
-                    vnf_descriptor = vnfd_dict[constituent_vnfd["vnfd-id-ref"]]
-                    break
+    @staticmethod
+    def ip_profile_2_RO(ip_profile):
+        RO_ip_profile = deepcopy(ip_profile)
+        if "dns-server" in RO_ip_profile:
+            if isinstance(RO_ip_profile["dns-server"], list):
+                RO_ip_profile["dns-address"] = []
+                for ds in RO_ip_profile.pop("dns-server"):
+                    RO_ip_profile["dns-address"].append(ds['address'])
             else:
-                raise LcmException("Invalid instantiate parameter vnf:member-vnf-index={} is not present at nsd:"
-                                   "constituent-vnfd".format(vnf_params["member-vnf-index"]))
-
-            for vdu_params in get_iterable(vnf_params, "vdu"):
-                # TODO feature 1417: check that this VDU exist and it is not a PDU
-                if vdu_params.get("volume"):
-                    for volume_params in vdu_params["volume"]:
-                        if volume_params.get("vim-volume-id"):
-                            populate_dict(RO_ns_params, ("vnfs", vnf_params["member-vnf-index"], "vdus",
-                                                         vdu_params["id"], "devices", volume_params["name"], "vim_id"),
-                                          volume_params["vim-volume-id"])
-                if vdu_params.get("interface"):
-                    for interface_params in vdu_params["interface"]:
-                        if interface_params.get("ip-address"):
-                            populate_dict(RO_ns_params, ("vnfs", vnf_params["member-vnf-index"], "vdus",
-                                                         vdu_params["id"], "interfaces", interface_params["name"],
-                                                         "ip_address"),
-                                          interface_params["ip-address"])
-                        if interface_params.get("mac-address"):
-                            populate_dict(RO_ns_params, ("vnfs", vnf_params["member-vnf-index"], "vdus",
-                                                         vdu_params["id"], "interfaces", interface_params["name"],
-                                                         "mac_address"),
-                                          interface_params["mac-address"])
-                        if interface_params.get("floating-ip-required"):
-                            populate_dict(RO_ns_params, ("vnfs", vnf_params["member-vnf-index"], "vdus",
-                                                         vdu_params["id"], "interfaces", interface_params["name"],
-                                                         "floating-ip"),
-                                          interface_params["floating-ip-required"])
-
-            for internal_vld_params in get_iterable(vnf_params, "internal-vld"):
-                if internal_vld_params.get("vim-network-name"):
-                    populate_dict(RO_ns_params, ("vnfs", vnf_params["member-vnf-index"], "networks",
-                                                 internal_vld_params["name"], "vim-network-name"),
-                                  internal_vld_params["vim-network-name"])
-                if internal_vld_params.get("vim-network-id"):
-                    populate_dict(RO_ns_params, ("vnfs", vnf_params["member-vnf-index"], "networks",
-                                                 internal_vld_params["name"], "vim-network-id"),
-                                  internal_vld_params["vim-network-id"])
-                if internal_vld_params.get("ip-profile"):
-                    populate_dict(RO_ns_params, ("vnfs", vnf_params["member-vnf-index"], "networks",
-                                                 internal_vld_params["name"], "ip-profile"),
-                                  ip_profile_2_RO(internal_vld_params["ip-profile"]))
-                if internal_vld_params.get("provider-network"):
-
-                    populate_dict(RO_ns_params, ("vnfs", vnf_params["member-vnf-index"], "networks",
-                                                 internal_vld_params["name"], "provider-network"),
-                                  internal_vld_params["provider-network"].copy())
-
-                for icp_params in get_iterable(internal_vld_params, "internal-connection-point"):
-                    # look for interface
-                    iface_found = False
-                    for vdu_descriptor in vnf_descriptor["vdu"]:
-                        for vdu_interface in vdu_descriptor["interface"]:
-                            if vdu_interface.get("internal-connection-point-ref") == icp_params["id-ref"]:
-                                if icp_params.get("ip-address"):
-                                    populate_dict(RO_ns_params, ("vnfs", vnf_params["member-vnf-index"], "vdus",
-                                                                 vdu_descriptor["id"], "interfaces",
-                                                                 vdu_interface["name"], "ip_address"),
-                                                  icp_params["ip-address"])
-
-                                if icp_params.get("mac-address"):
-                                    populate_dict(RO_ns_params, ("vnfs", vnf_params["member-vnf-index"], "vdus",
-                                                                 vdu_descriptor["id"], "interfaces",
-                                                                 vdu_interface["name"], "mac_address"),
-                                                  icp_params["mac-address"])
-                                iface_found = True
-                                break
-                        if iface_found:
-                            break
-                    else:
-                        raise LcmException("Invalid instantiate parameter vnf:member-vnf-index[{}]:"
-                                           "internal-vld:id-ref={} is not present at vnfd:internal-"
-                                           "connection-point".format(vnf_params["member-vnf-index"],
-                                                                     icp_params["id-ref"]))
-
-        for vld_params in get_iterable(ns_params, "vld"):
-            if "ip-profile" in vld_params:
-                populate_dict(RO_ns_params, ("networks", vld_params["name"], "ip-profile"),
-                              ip_profile_2_RO(vld_params["ip-profile"]))
+                RO_ip_profile["dns-address"] = RO_ip_profile.pop("dns-server")
+        if RO_ip_profile.get("ip-version") == "ipv4":
+            RO_ip_profile["ip-version"] = "IPv4"
+        if RO_ip_profile.get("ip-version") == "ipv6":
+            RO_ip_profile["ip-version"] = "IPv6"
+        if "dhcp-params" in RO_ip_profile:
+            RO_ip_profile["dhcp"] = RO_ip_profile.pop("dhcp-params")
+        return RO_ip_profile
+
+    def _get_ro_vim_id_for_vim_account(self, vim_account):
+        db_vim = self.db.get_one("vim_accounts", {"_id": vim_account})
+        if db_vim["_admin"]["operationalState"] != "ENABLED":
+            raise LcmException("VIM={} is not available. operationalState={}".format(
+                vim_account, db_vim["_admin"]["operationalState"]))
+        RO_vim_id = db_vim["_admin"]["deployed"]["RO"]
+        return RO_vim_id
+
+    def get_ro_wim_id_for_wim_account(self, wim_account):
+        if isinstance(wim_account, str):
+            db_wim = self.db.get_one("wim_accounts", {"_id": wim_account})
+            if db_wim["_admin"]["operationalState"] != "ENABLED":
+                raise LcmException("WIM={} is not available. operationalState={}".format(
+                    wim_account, db_wim["_admin"]["operationalState"]))
+            RO_wim_id = db_wim["_admin"]["deployed"]["RO-account"]
+            return RO_wim_id
+        else:
+            return wim_account
 
-            if vld_params.get("provider-network"):
+    def scale_vnfr(self, db_vnfr, vdu_create=None, vdu_delete=None, mark_delete=False):
 
-                populate_dict(RO_ns_params, ("networks", vld_params["name"], "provider-network"),
-                              vld_params["provider-network"].copy())
-
-            if "wimAccountId" in vld_params and vld_params["wimAccountId"] is not None:
-                populate_dict(RO_ns_params, ("networks", vld_params["name"], "wim_account"),
-                              wim_account_2_RO(vld_params["wimAccountId"])),
-            if vld_params.get("vim-network-name"):
-                RO_vld_sites = []
-                if isinstance(vld_params["vim-network-name"], dict):
-                    for vim_account, vim_net in vld_params["vim-network-name"].items():
-                        RO_vld_sites.append({
-                            "netmap-use": vim_net,
-                            "datacenter": vim_account_2_RO(vim_account)
-                        })
-                else:  # isinstance str
-                    RO_vld_sites.append({"netmap-use": vld_params["vim-network-name"]})
-                if RO_vld_sites:
-                    populate_dict(RO_ns_params, ("networks", vld_params["name"], "sites"), RO_vld_sites)
-
-            if vld_params.get("vim-network-id"):
-                RO_vld_sites = []
-                if isinstance(vld_params["vim-network-id"], dict):
-                    for vim_account, vim_net in vld_params["vim-network-id"].items():
-                        RO_vld_sites.append({
-                            "netmap-use": vim_net,
-                            "datacenter": vim_account_2_RO(vim_account)
-                        })
-                else:  # isinstance str
-                    RO_vld_sites.append({"netmap-use": vld_params["vim-network-id"]})
-                if RO_vld_sites:
-                    populate_dict(RO_ns_params, ("networks", vld_params["name"], "sites"), RO_vld_sites)
-            if vld_params.get("ns-net"):
-                if isinstance(vld_params["ns-net"], dict):
-                    for vld_id, instance_scenario_id in vld_params["ns-net"].items():
-                        RO_vld_ns_net = {"instance_scenario_id": instance_scenario_id, "osm_id": vld_id}
-                        populate_dict(RO_ns_params, ("networks", vld_params["name"], "use-network"), RO_vld_ns_net)
-            if "vnfd-connection-point-ref" in vld_params:
-                for cp_params in vld_params["vnfd-connection-point-ref"]:
-                    # look for interface
-                    for constituent_vnfd in nsd["constituent-vnfd"]:
-                        if constituent_vnfd["member-vnf-index"] == cp_params["member-vnf-index-ref"]:
-                            vnf_descriptor = vnfd_dict[constituent_vnfd["vnfd-id-ref"]]
-                            break
-                    else:
-                        raise LcmException(
-                            "Invalid instantiate parameter vld:vnfd-connection-point-ref:member-vnf-index-ref={} "
-                            "is not present at nsd:constituent-vnfd".format(cp_params["member-vnf-index-ref"]))
-                    match_cp = False
-                    for vdu_descriptor in vnf_descriptor["vdu"]:
-                        for interface_descriptor in vdu_descriptor["interface"]:
-                            if interface_descriptor.get("external-connection-point-ref") == \
-                                    cp_params["vnfd-connection-point-ref"]:
-                                match_cp = True
-                                break
-                        if match_cp:
-                            break
-                    else:
-                        raise LcmException(
-                            "Invalid instantiate parameter vld:vnfd-connection-point-ref:member-vnf-index-ref={}:"
-                            "vnfd-connection-point-ref={} is not present at vnfd={}".format(
-                                cp_params["member-vnf-index-ref"],
-                                cp_params["vnfd-connection-point-ref"],
-                                vnf_descriptor["id"]))
-                    if cp_params.get("ip-address"):
-                        populate_dict(RO_ns_params, ("vnfs", cp_params["member-vnf-index-ref"], "vdus",
-                                                     vdu_descriptor["id"], "interfaces",
-                                                     interface_descriptor["name"], "ip_address"),
-                                      cp_params["ip-address"])
-                    if cp_params.get("mac-address"):
-                        populate_dict(RO_ns_params, ("vnfs", cp_params["member-vnf-index-ref"], "vdus",
-                                                     vdu_descriptor["id"], "interfaces",
-                                                     interface_descriptor["name"], "mac_address"),
-                                      cp_params["mac-address"])
-        return RO_ns_params
-
-    def scale_vnfr(self, db_vnfr, vdu_create=None, vdu_delete=None):
-        # make a copy to do not change
-        vdu_create = copy(vdu_create)
-        vdu_delete = copy(vdu_delete)
-
-        vdurs = db_vnfr.get("vdur")
-        if vdurs is None:
-            vdurs = []
-        vdu_index = len(vdurs)
-        while vdu_index:
-            vdu_index -= 1
-            vdur = vdurs[vdu_index]
-            if vdur.get("pdu-type"):
-                continue
-            vdu_id_ref = vdur["vdu-id-ref"]
-            if vdu_create and vdu_create.get(vdu_id_ref):
-                for index in range(0, vdu_create[vdu_id_ref]):
-                    vdur = deepcopy(vdur)
-                    vdur["_id"] = str(uuid4())
-                    vdur["count-index"] += 1
-                    vdurs.insert(vdu_index+1+index, vdur)
-                del vdu_create[vdu_id_ref]
-            if vdu_delete and vdu_delete.get(vdu_id_ref):
-                del vdurs[vdu_index]
-                vdu_delete[vdu_id_ref] -= 1
-                if not vdu_delete[vdu_id_ref]:
-                    del vdu_delete[vdu_id_ref]
-        # check all operations are done
-        if vdu_create or vdu_delete:
-            raise LcmException("Error scaling OUT VNFR for {}. There is not any existing vnfr. Scaled to 0?".format(
-                vdu_create))
+        db_vdu_push_list = []
+        db_update = {"_admin.modified": time()}
+        if vdu_create:
+            for vdu_id, vdu_count in vdu_create.items():
+                vdur = next((vdur for vdur in reversed(db_vnfr["vdur"]) if vdur["vdu-id-ref"] == vdu_id), None)
+                if not vdur:
+                    raise LcmException("Error scaling OUT VNFR for {}. There is not any existing vnfr. Scaled to 0?".
+                                       format(vdu_id))
+
+                for count in range(vdu_count):
+                    vdur_copy = deepcopy(vdur)
+                    vdur_copy["status"] = "BUILD"
+                    vdur_copy["status-detailed"] = None
+                    vdur_copy["ip-address"]: None
+                    vdur_copy["_id"] = str(uuid4())
+                    vdur_copy["count-index"] += count + 1
+                    vdur_copy["id"] = "{}-{}".format(vdur_copy["vdu-id-ref"], vdur_copy["count-index"])
+                    vdur_copy.pop("vim_info", None)
+                    for iface in vdur_copy["interfaces"]:
+                        if iface.get("fixed-ip"):
+                            iface["ip-address"] = self.increment_ip_mac(iface["ip-address"], count+1)
+                        else:
+                            iface.pop("ip-address", None)
+                        if iface.get("fixed-mac"):
+                            iface["mac-address"] = self.increment_ip_mac(iface["mac-address"], count+1)
+                        else:
+                            iface.pop("mac-address", None)
+                        iface.pop("mgmt_vnf", None)  # only first vdu can be managment of vnf
+                    db_vdu_push_list.append(vdur_copy)
+                    # self.logger.debug("scale out, adding vdu={}".format(vdur_copy))
         if vdu_delete:
-            raise LcmException("Error scaling IN VNFR for {}. There is not any existing vnfr. Scaled to 0?".format(
-                vdu_delete))
-
-        vnfr_update = {"vdur": vdurs}
-        db_vnfr["vdur"] = vdurs
-        self.update_db_2("vnfrs", db_vnfr["_id"], vnfr_update)
+            for vdu_id, vdu_count in vdu_delete.items():
+                if mark_delete:
+                    indexes_to_delete = [iv[0] for iv in enumerate(db_vnfr["vdur"]) if iv[1]["vdu-id-ref"] == vdu_id]
+                    db_update.update({"vdur.{}.status".format(i): "DELETING" for i in indexes_to_delete[-vdu_count:]})
+                else:
+                    # it must be deleted one by one because common.db does not allow otherwise
+                    vdus_to_delete = [v for v in reversed(db_vnfr["vdur"]) if v["vdu-id-ref"] == vdu_id]
+                    for vdu in vdus_to_delete[:vdu_count]:
+                        self.db.set_one("vnfrs", {"_id": db_vnfr["_id"]}, None, pull={"vdur": {"_id": vdu["_id"]}})
+        db_push = {"vdur": db_vdu_push_list} if db_vdu_push_list else None
+        self.db.set_one("vnfrs", {"_id": db_vnfr["_id"]}, db_update, push_list=db_push)
+        # modify passed dictionary db_vnfr
+        db_vnfr_ = self.db.get_one("vnfrs", {"_id": db_vnfr["_id"]})
+        db_vnfr["vdur"] = db_vnfr_["vdur"]
 
     def ns_update_nsr(self, ns_update_nsr, db_nsr, nsr_desc_RO):
         """
@@ -726,37 +603,361 @@ class NsLcm(LcmBase):
                     vca["application"]
         return ns_config_info
 
-    @staticmethod
-    def _get_initial_config_primitive_list(desc_primitive_list, vca_deployed):
-        """
-        Generates a list of initial-config-primitive based on the list provided by the descriptor. It includes internal
-        primitives as verify-ssh-credentials, or config when needed
-        :param desc_primitive_list: information of the descriptor
-        :param vca_deployed: information of the deployed, needed for known if it is related to an NS, VNF, VDU and if
-            this element contains a ssh public key
-        :return: The modified list. Can ba an empty list, but always a list
-        """
-        if desc_primitive_list:
-            primitive_list = desc_primitive_list.copy()
+    async def _instantiate_ng_ro(self, logging_text, nsr_id, nsd, db_nsr, db_nslcmop, db_vnfrs, db_vnfds,
+                                 n2vc_key_list, stage, start_deploy, timeout_ns_deploy):
+
+        db_vims = {}
+
+        def get_vim_account(vim_account_id):
+            nonlocal db_vims
+            if vim_account_id in db_vims:
+                return db_vims[vim_account_id]
+            db_vim = self.db.get_one("vim_accounts", {"_id": vim_account_id})
+            db_vims[vim_account_id] = db_vim
+            return db_vim
+
+        # modify target_vld info with instantiation parameters
+        def parse_vld_instantiation_params(target_vim, target_vld, vld_params, target_sdn):
+            if vld_params.get("ip-profile"):
+                target_vld["vim_info"][target_vim]["ip_profile"] = vld_params["ip-profile"]
+            if vld_params.get("provider-network"):
+                target_vld["vim_info"][target_vim]["provider_network"] = vld_params["provider-network"]
+                if "sdn-ports" in vld_params["provider-network"] and target_sdn:
+                    target_vld["vim_info"][target_sdn]["sdn-ports"] = vld_params["provider-network"]["sdn-ports"]
+            if vld_params.get("wimAccountId"):
+                target_wim = "wim:{}".format(vld_params["wimAccountId"])
+                target_vld["vim_info"][target_wim] = {}
+            for param in ("vim-network-name", "vim-network-id"):
+                if vld_params.get(param):
+                    if isinstance(vld_params[param], dict):
+                        for vim, vim_net in vld_params[param].items():
+                            other_target_vim = "vim:" + vim
+                            populate_dict(target_vld["vim_info"], (other_target_vim, param.replace("-", "_")), vim_net)
+                    else:  # isinstance str
+                        target_vld["vim_info"][target_vim][param.replace("-", "_")] = vld_params[param]
+            if vld_params.get("common_id"):
+                target_vld["common_id"] = vld_params.get("common_id")
+
+        nslcmop_id = db_nslcmop["_id"]
+        target = {
+            "name": db_nsr["name"],
+            "ns": {"vld": []},
+            "vnf": [],
+            "image": deepcopy(db_nsr["image"]),
+            "flavor": deepcopy(db_nsr["flavor"]),
+            "action_id": nslcmop_id,
+            "cloud_init_content": {},
+        }
+        for image in target["image"]:
+            image["vim_info"] = {}
+        for flavor in target["flavor"]:
+            flavor["vim_info"] = {}
+
+        if db_nslcmop.get("lcmOperationType") != "instantiate":
+            # get parameters of instantiation:
+            db_nslcmop_instantiate = self.db.get_list("nslcmops", {"nsInstanceId": db_nslcmop["nsInstanceId"],
+                                                                   "lcmOperationType": "instantiate"})[-1]
+            ns_params = db_nslcmop_instantiate.get("operationParams")
         else:
-            primitive_list = []
-        # look for primitive config, and get the position. None if not present
-        config_position = None
-        for index, primitive in enumerate(primitive_list):
-            if primitive["name"] == "config":
-                config_position = index
+            ns_params = db_nslcmop.get("operationParams")
+        ssh_keys_instantiation = ns_params.get("ssh_keys") or []
+        ssh_keys_all = ssh_keys_instantiation + (n2vc_key_list or [])
+
+        cp2target = {}
+        for vld_index, vld in enumerate(db_nsr.get("vld")):
+            target_vim = "vim:{}".format(ns_params["vimAccountId"])
+            target_vld = {
+                "id": vld["id"],
+                "name": vld["name"],
+                "mgmt-network": vld.get("mgmt-network", False),
+                "type": vld.get("type"),
+                "vim_info": {
+                    target_vim: {
+                        "vim_network_name": vld.get("vim-network-name"),
+                        "vim_account_id": ns_params["vimAccountId"]
+                    }
+                }
+            }
+            # check if this network needs SDN assist
+            if vld.get("pci-interfaces"):
+                db_vim = get_vim_account(ns_params["vimAccountId"])
+                sdnc_id = db_vim["config"].get("sdn-controller")
+                if sdnc_id:
+                    sdn_vld = "nsrs:{}:vld.{}".format(nsr_id, vld["id"])
+                    target_sdn = "sdn:{}".format(sdnc_id)
+                    target_vld["vim_info"][target_sdn] = {
+                        "sdn": True, "target_vim": target_vim, "vlds": [sdn_vld], "type": vld.get("type")}
+
+            nsd_vnf_profiles = get_vnf_profiles(nsd)
+            for nsd_vnf_profile in nsd_vnf_profiles:
+                for cp in nsd_vnf_profile["virtual-link-connectivity"]:
+                    if cp["virtual-link-profile-id"] == vld["id"]:
+                        cp2target["member_vnf:{}.{}".format(
+                            cp["constituent-cpd-id"][0]["constituent-base-element-id"],
+                            cp["constituent-cpd-id"][0]["constituent-cpd-id"]
+                        )] = "nsrs:{}:vld.{}".format(nsr_id, vld_index)
+
+            # check at nsd descriptor, if there is an ip-profile
+            vld_params = {}
+            nsd_vlp = find_in_list(
+                get_virtual_link_profiles(nsd),
+                lambda a_link_profile: a_link_profile["virtual-link-desc-id"] == vld["id"])
+            if nsd_vlp and nsd_vlp.get("virtual-link-protocol-data") and \
+                    nsd_vlp["virtual-link-protocol-data"].get("l3-protocol-data"):
+                ip_profile_source_data = nsd_vlp["virtual-link-protocol-data"]["l3-protocol-data"]
+                ip_profile_dest_data = {}
+                if "ip-version" in ip_profile_source_data:
+                    ip_profile_dest_data["ip-version"] = ip_profile_source_data["ip-version"]
+                if "cidr" in ip_profile_source_data:
+                    ip_profile_dest_data["subnet-address"] = ip_profile_source_data["cidr"]
+                if "gateway-ip" in ip_profile_source_data:
+                    ip_profile_dest_data["gateway-address"] = ip_profile_source_data["gateway-ip"]
+                if "dhcp-enabled" in ip_profile_source_data:
+                    ip_profile_dest_data["dhcp-params"] = {
+                        "enabled": ip_profile_source_data["dhcp-enabled"]
+                    }
+                vld_params["ip-profile"] = ip_profile_dest_data
+
+            # update vld_params with instantiation params
+            vld_instantiation_params = find_in_list(get_iterable(ns_params, "vld"),
+                                                    lambda a_vld: a_vld["name"] in (vld["name"], vld["id"]))
+            if vld_instantiation_params:
+                vld_params.update(vld_instantiation_params)
+            parse_vld_instantiation_params(target_vim, target_vld, vld_params, None)
+            target["ns"]["vld"].append(target_vld)
+
+        for vnfr in db_vnfrs.values():
+            vnfd = find_in_list(db_vnfds, lambda db_vnf: db_vnf["id"] == vnfr["vnfd-ref"])
+            vnf_params = find_in_list(get_iterable(ns_params, "vnf"),
+                                      lambda a_vnf: a_vnf["member-vnf-index"] == vnfr["member-vnf-index-ref"])
+            target_vnf = deepcopy(vnfr)
+            target_vim = "vim:{}".format(vnfr["vim-account-id"])
+            for vld in target_vnf.get("vld", ()):
+                # check if connected to a ns.vld, to fill target'
+                vnf_cp = find_in_list(vnfd.get("int-virtual-link-desc", ()),
+                                      lambda cpd: cpd.get("id") == vld["id"])
+                if vnf_cp:
+                    ns_cp = "member_vnf:{}.{}".format(vnfr["member-vnf-index-ref"], vnf_cp["id"])
+                    if cp2target.get(ns_cp):
+                        vld["target"] = cp2target[ns_cp]
+
+                vld["vim_info"] = {target_vim: {"vim_network_name": vld.get("vim-network-name")}}
+                # check if this network needs SDN assist
+                target_sdn = None
+                if vld.get("pci-interfaces"):
+                    db_vim = get_vim_account(vnfr["vim-account-id"])
+                    sdnc_id = db_vim["config"].get("sdn-controller")
+                    if sdnc_id:
+                        sdn_vld = "vnfrs:{}:vld.{}".format(target_vnf["_id"], vld["id"])
+                        target_sdn = "sdn:{}".format(sdnc_id)
+                        vld["vim_info"][target_sdn] = {
+                            "sdn": True, "target_vim": target_vim, "vlds": [sdn_vld], "type": vld.get("type")}
+
+                # check at vnfd descriptor, if there is an ip-profile
+                vld_params = {}
+                vnfd_vlp = find_in_list(
+                    get_virtual_link_profiles(vnfd),
+                    lambda a_link_profile: a_link_profile["id"] == vld["id"]
+                )
+                if vnfd_vlp and vnfd_vlp.get("virtual-link-protocol-data") and \
+                   vnfd_vlp["virtual-link-protocol-data"].get("l3-protocol-data"):
+                    ip_profile_source_data = vnfd_vlp["virtual-link-protocol-data"]["l3-protocol-data"]
+                    ip_profile_dest_data = {}
+                    if "ip-version" in ip_profile_source_data:
+                        ip_profile_dest_data["ip-version"] = ip_profile_source_data["ip-version"]
+                    if "cidr" in ip_profile_source_data:
+                        ip_profile_dest_data["subnet-address"] = ip_profile_source_data["cidr"]
+                    if "gateway-ip" in ip_profile_source_data:
+                        ip_profile_dest_data["gateway-address"] = ip_profile_source_data["gateway-ip"]
+                    if "dhcp-enabled" in ip_profile_source_data:
+                        ip_profile_dest_data["dhcp-params"] = {
+                            "enabled": ip_profile_source_data["dhcp-enabled"]
+                        }
+
+                    vld_params["ip-profile"] = ip_profile_dest_data
+                # update vld_params with instantiation params
+                if vnf_params:
+                    vld_instantiation_params = find_in_list(get_iterable(vnf_params, "internal-vld"),
+                                                            lambda i_vld: i_vld["name"] == vld["id"])
+                    if vld_instantiation_params:
+                        vld_params.update(vld_instantiation_params)
+                parse_vld_instantiation_params(target_vim, vld, vld_params, target_sdn)
+
+            vdur_list = []
+            for vdur in target_vnf.get("vdur", ()):
+                if vdur.get("status") == "DELETING" or vdur.get("pdu-type"):
+                    continue  # This vdu must not be created
+                vdur["vim_info"] = {"vim_account_id": vnfr["vim-account-id"]}
+
+                self.logger.debug("NS > ssh_keys > {}".format(ssh_keys_all))
+
+                if ssh_keys_all:
+                    vdu_configuration = get_configuration(vnfd, vdur["vdu-id-ref"])
+                    vnf_configuration = get_configuration(vnfd, vnfd["id"])
+                    if vdu_configuration and vdu_configuration.get("config-access") and \
+                       vdu_configuration.get("config-access").get("ssh-access"):
+                        vdur["ssh-keys"] = ssh_keys_all
+                        vdur["ssh-access-required"] = vdu_configuration["config-access"]["ssh-access"]["required"]
+                    elif vnf_configuration and vnf_configuration.get("config-access") and \
+                        vnf_configuration.get("config-access").get("ssh-access") and \
+                            any(iface.get("mgmt-vnf") for iface in vdur["interfaces"]):
+                        vdur["ssh-keys"] = ssh_keys_all
+                        vdur["ssh-access-required"] = vnf_configuration["config-access"]["ssh-access"]["required"]
+                    elif ssh_keys_instantiation and \
+                            find_in_list(vdur["interfaces"], lambda iface: iface.get("mgmt-vnf")):
+                        vdur["ssh-keys"] = ssh_keys_instantiation
+
+                self.logger.debug("NS > vdur > {}".format(vdur))
+
+                vdud = get_vdu(vnfd, vdur["vdu-id-ref"])
+                # cloud-init
+                if vdud.get("cloud-init-file"):
+                    vdur["cloud-init"] = "{}:file:{}".format(vnfd["_id"], vdud.get("cloud-init-file"))
+                    # read file and put content at target.cloul_init_content. Avoid ng_ro to use shared package system
+                    if vdur["cloud-init"] not in target["cloud_init_content"]:
+                        base_folder = vnfd["_admin"]["storage"]
+                        cloud_init_file = "{}/{}/cloud_init/{}".format(base_folder["folder"], base_folder["pkg-dir"],
+                                                                       vdud.get("cloud-init-file"))
+                        with self.fs.file_open(cloud_init_file, "r") as ci_file:
+                            target["cloud_init_content"][vdur["cloud-init"]] = ci_file.read()
+                elif vdud.get("cloud-init"):
+                    vdur["cloud-init"] = "{}:vdu:{}".format(vnfd["_id"], get_vdu_index(vnfd, vdur["vdu-id-ref"]))
+                    # put content at target.cloul_init_content. Avoid ng_ro read vnfd descriptor
+                    target["cloud_init_content"][vdur["cloud-init"]] = vdud["cloud-init"]
+                vdur["additionalParams"] = vdur.get("additionalParams") or {}
+                deploy_params_vdu = self._format_additional_params(vdur.get("additionalParams") or {})
+                deploy_params_vdu["OSM"] = get_osm_params(vnfr, vdur["vdu-id-ref"], vdur["count-index"])
+                vdur["additionalParams"] = deploy_params_vdu
+
+                # flavor
+                ns_flavor = target["flavor"][int(vdur["ns-flavor-id"])]
+                if target_vim not in ns_flavor["vim_info"]:
+                    ns_flavor["vim_info"][target_vim] = {}
+
+                # deal with images
+                # in case alternative images are provided we must check if they should be applied
+                # for the vim_type, modify the vim_type taking into account
+                ns_image_id = int(vdur["ns-image-id"])
+                if vdur.get("alt-image-ids"):
+                    db_vim = get_vim_account(vnfr["vim-account-id"])
+                    vim_type = db_vim["vim_type"]
+                    for alt_image_id in vdur.get("alt-image-ids"):
+                        ns_alt_image = target["image"][int(alt_image_id)]
+                        if vim_type == ns_alt_image.get("vim-type"):
+                            # must use alternative image
+                            self.logger.debug("use alternative image id: {}".format(alt_image_id))
+                            ns_image_id = alt_image_id
+                            vdur["ns-image-id"] = ns_image_id
+                            break
+                ns_image = target["image"][int(ns_image_id)]
+                if target_vim not in ns_image["vim_info"]:
+                    ns_image["vim_info"][target_vim] = {}
+
+                vdur["vim_info"] = {target_vim: {}}
+                # instantiation parameters
+                # if vnf_params:
+                #     vdu_instantiation_params = next((v for v in get_iterable(vnf_params, "vdu") if v["id"] ==
+                #     vdud["id"]), None)
+                vdur_list.append(vdur)
+            target_vnf["vdur"] = vdur_list
+            target["vnf"].append(target_vnf)
+
+        desc = await self.RO.deploy(nsr_id, target)
+        self.logger.debug("RO return > {}".format(desc))
+        action_id = desc["action_id"]
+        await self._wait_ng_ro(nsr_id, action_id, nslcmop_id, start_deploy, timeout_ns_deploy, stage)
+
+        # Updating NSR
+        db_nsr_update = {
+            "_admin.deployed.RO.operational-status": "running",
+            "detailed-status": " ".join(stage)
+        }
+        # db_nsr["_admin.deployed.RO.detailed-status"] = "Deployed at VIM"
+        self.update_db_2("nsrs", nsr_id, db_nsr_update)
+        self._write_op_status(nslcmop_id, stage)
+        self.logger.debug(logging_text + "ns deployed at RO. RO_id={}".format(action_id))
+        return
+
+    async def _wait_ng_ro(self, nsr_id, action_id, nslcmop_id=None, start_time=None, timeout=600, stage=None):
+        detailed_status_old = None
+        db_nsr_update = {}
+        start_time = start_time or time()
+        while time() <= start_time + timeout:
+            desc_status = await self.RO.status(nsr_id, action_id)
+            self.logger.debug("Wait NG RO > {}".format(desc_status))
+            if desc_status["status"] == "FAILED":
+                raise NgRoException(desc_status["details"])
+            elif desc_status["status"] == "BUILD":
+                if stage:
+                    stage[2] = "VIM: ({})".format(desc_status["details"])
+            elif desc_status["status"] == "DONE":
+                if stage:
+                    stage[2] = "Deployed at VIM"
                 break
+            else:
+                assert False, "ROclient.check_ns_status returns unknown {}".format(desc_status["status"])
+            if stage and nslcmop_id and stage[2] != detailed_status_old:
+                detailed_status_old = stage[2]
+                db_nsr_update["detailed-status"] = " ".join(stage)
+                self.update_db_2("nsrs", nsr_id, db_nsr_update)
+                self._write_op_status(nslcmop_id, stage)
+            await asyncio.sleep(15, loop=self.loop)
+        else:  # timeout_ns_deploy
+            raise NgRoException("Timeout waiting ns to deploy")
 
-        # for NS, add always a config primitive if not present (bug 874)
-        if not vca_deployed["member-vnf-index"] and config_position is None:
-            primitive_list.insert(0, {"name": "config", "parameter": []})
-            config_position = 0
-        # for VNF/VDU add verify-ssh-credentials after config
-        if vca_deployed["member-vnf-index"] and config_position is not None and vca_deployed.get("ssh-public-key"):
-            primitive_list.insert(config_position + 1, {"name": "verify-ssh-credentials", "parameter": []})
-        return primitive_list
+    async def _terminate_ng_ro(self, logging_text, nsr_deployed, nsr_id, nslcmop_id, stage):
+        db_nsr_update = {}
+        failed_detail = []
+        action_id = None
+        start_deploy = time()
+        try:
+            target = {
+                "ns": {"vld": []},
+                "vnf": [],
+                "image": [],
+                "flavor": [],
+                "action_id": nslcmop_id
+            }
+            desc = await self.RO.deploy(nsr_id, target)
+            action_id = desc["action_id"]
+            db_nsr_update["_admin.deployed.RO.nsr_delete_action_id"] = action_id
+            db_nsr_update["_admin.deployed.RO.nsr_status"] = "DELETING"
+            self.logger.debug(logging_text + "ns terminate action at RO. action_id={}".format(action_id))
+
+            # wait until done
+            delete_timeout = 20 * 60  # 20 minutes
+            await self._wait_ng_ro(nsr_id, action_id, nslcmop_id, start_deploy, delete_timeout, stage)
+
+            db_nsr_update["_admin.deployed.RO.nsr_delete_action_id"] = None
+            db_nsr_update["_admin.deployed.RO.nsr_status"] = "DELETED"
+            # delete all nsr
+            await self.RO.delete(nsr_id)
+        except Exception as e:
+            if isinstance(e, NgRoException) and e.http_code == 404:  # not found
+                db_nsr_update["_admin.deployed.RO.nsr_id"] = None
+                db_nsr_update["_admin.deployed.RO.nsr_status"] = "DELETED"
+                db_nsr_update["_admin.deployed.RO.nsr_delete_action_id"] = None
+                self.logger.debug(logging_text + "RO_action_id={} already deleted".format(action_id))
+            elif isinstance(e, NgRoException) and e.http_code == 409:  # conflict
+                failed_detail.append("delete conflict: {}".format(e))
+                self.logger.debug(logging_text + "RO_action_id={} delete conflict: {}".format(action_id, e))
+            else:
+                failed_detail.append("delete error: {}".format(e))
+                self.logger.error(logging_text + "RO_action_id={} delete error: {}".format(action_id, e))
 
-    async def instantiate_RO(self, logging_text, nsr_id, nsd, db_nsr, db_nslcmop, db_vnfrs, db_vnfds_ref,
+        if failed_detail:
+            stage[2] = "Error deleting from VIM"
+        else:
+            stage[2] = "Deleted from VIM"
+        db_nsr_update["detailed-status"] = " ".join(stage)
+        self.update_db_2("nsrs", nsr_id, db_nsr_update)
+        self._write_op_status(nslcmop_id, stage)
+
+        if failed_detail:
+            raise LcmException("; ".join(failed_detail))
+        return
+
+    async def instantiate_RO(self, logging_text, nsr_id, nsd, db_nsr, db_nslcmop, db_vnfrs, db_vnfds,
                              n2vc_key_list, stage):
         """
         Instantiate at RO
@@ -766,16 +967,12 @@ class NsLcm(LcmBase):
         :param db_nsr: database content of ns record
         :param db_nslcmop: database content of ns operation, in this case, 'instantiate'
         :param db_vnfrs:
-        :param db_vnfds_ref: database content of vnfds, indexed by id (not _id). {id: {vnfd_object}, ...}
+        :param db_vnfds: database content of vnfds, indexed by id (not _id). {id: {vnfd_object}, ...}
         :param n2vc_key_list: ssh-public-key list to be inserted to management vdus via cloud-init
         :param stage: list with 3 items: [general stage, tasks, vim_specific]. This task will write over vim_specific
         :return: None or exception
         """
         try:
-            db_nsr_update = {}
-            RO_descriptor_number = 0   # number of descriptors created at RO
-            vnf_index_2_RO_id = {}    # map between vnfd/nsd id to the id used at RO
-            nslcmop_id = db_nslcmop["_id"]
             start_deploy = time()
             ns_params = db_nslcmop.get("operationParams")
             if ns_params and ns_params.get("timeout_ns_deploy"):
@@ -793,205 +990,43 @@ class NsLcm(LcmBase):
                 else:
                     ns_params["vimAccountId"] == vnfr["vim-account-id"]
 
-            # deploy RO
-            # get vnfds, instantiate at RO
-            for c_vnf in nsd.get("constituent-vnfd", ()):
-                member_vnf_index = c_vnf["member-vnf-index"]
-                vnfd = db_vnfds_ref[c_vnf['vnfd-id-ref']]
-                vnfd_ref = vnfd["id"]
+            return await self._instantiate_ng_ro(logging_text, nsr_id, nsd, db_nsr, db_nslcmop, db_vnfrs,
+                                                 db_vnfds, n2vc_key_list, stage, start_deploy, timeout_ns_deploy)
+        except Exception as e:
+            stage[2] = "ERROR deploying at VIM"
+            self.set_vnfr_at_error(db_vnfrs, str(e))
+            self.logger.error("Error deploying at VIM {}".format(e),
+                              exc_info=not isinstance(e, (ROclient.ROClientException, LcmException, DbException,
+                                                          NgRoException)))
+            raise
 
-                stage[2] = "Creating vnfd='{}' member_vnf_index='{}' at RO".format(vnfd_ref, member_vnf_index)
-                db_nsr_update["detailed-status"] = " ".join(stage)
-                self.update_db_2("nsrs", nsr_id, db_nsr_update)
-                self._write_op_status(nslcmop_id, stage)
+    async def wait_kdu_up(self, logging_text, nsr_id, vnfr_id, kdu_name):
+        """
+        Wait for kdu to be up, get ip address
+        :param logging_text: prefix use for logging
+        :param nsr_id:
+        :param vnfr_id:
+        :param kdu_name:
+        :return: IP address
+        """
 
-                # self.logger.debug(logging_text + stage[2])
-                vnfd_id_RO = "{}.{}.{}".format(nsr_id, RO_descriptor_number, member_vnf_index[:23])
-                vnf_index_2_RO_id[member_vnf_index] = vnfd_id_RO
-                RO_descriptor_number += 1
+        # self.logger.debug(logging_text + "Starting wait_kdu_up")
+        nb_tries = 0
 
-                # look position at deployed.RO.vnfd if not present it will be appended at the end
-                for index, vnf_deployed in enumerate(db_nsr["_admin"]["deployed"]["RO"]["vnfd"]):
-                    if vnf_deployed["member-vnf-index"] == member_vnf_index:
-                        break
-                else:
-                    index = len(db_nsr["_admin"]["deployed"]["RO"]["vnfd"])
-                    db_nsr["_admin"]["deployed"]["RO"]["vnfd"].append(None)
-
-                # look if present
-                RO_update = {"member-vnf-index": member_vnf_index}
-                vnfd_list = await self.RO.get_list("vnfd", filter_by={"osm_id": vnfd_id_RO})
-                if vnfd_list:
-                    RO_update["id"] = vnfd_list[0]["uuid"]
-                    self.logger.debug(logging_text + "vnfd='{}'  member_vnf_index='{}' exists at RO. Using RO_id={}".
-                                      format(vnfd_ref, member_vnf_index, vnfd_list[0]["uuid"]))
+        while nb_tries < 360:
+            db_vnfr = self.db.get_one("vnfrs", {"_id": vnfr_id})
+            kdur = next((x for x in get_iterable(db_vnfr, "kdur") if x.get("kdu-name") == kdu_name), None)
+            if not kdur:
+                raise LcmException("Not found vnfr_id={}, kdu_name={}".format(vnfr_id, kdu_name))
+            if kdur.get("status"):
+                if kdur["status"] in ("READY", "ENABLED"):
+                    return kdur.get("ip-address")
                 else:
-                    vnfd_RO = self.vnfd2RO(vnfd, vnfd_id_RO, db_vnfrs[c_vnf["member-vnf-index"]].
-                                           get("additionalParamsForVnf"), nsr_id)
-                    desc = await self.RO.create("vnfd", descriptor=vnfd_RO)
-                    RO_update["id"] = desc["uuid"]
-                    self.logger.debug(logging_text + "vnfd='{}' member_vnf_index='{}' created at RO. RO_id={}".format(
-                        vnfd_ref, member_vnf_index, desc["uuid"]))
-                db_nsr_update["_admin.deployed.RO.vnfd.{}".format(index)] = RO_update
-                db_nsr["_admin"]["deployed"]["RO"]["vnfd"][index] = RO_update
-
-            # create nsd at RO
-            nsd_ref = nsd["id"]
-
-            stage[2] = "Creating nsd={} at RO".format(nsd_ref)
-            db_nsr_update["detailed-status"] = " ".join(stage)
-            self.update_db_2("nsrs", nsr_id, db_nsr_update)
-            self._write_op_status(nslcmop_id, stage)
-
-            # self.logger.debug(logging_text + stage[2])
-            RO_osm_nsd_id = "{}.{}.{}".format(nsr_id, RO_descriptor_number, nsd_ref[:23])
-            RO_descriptor_number += 1
-            nsd_list = await self.RO.get_list("nsd", filter_by={"osm_id": RO_osm_nsd_id})
-            if nsd_list:
-                db_nsr_update["_admin.deployed.RO.nsd_id"] = RO_nsd_uuid = nsd_list[0]["uuid"]
-                self.logger.debug(logging_text + "nsd={} exists at RO. Using RO_id={}".format(
-                    nsd_ref, RO_nsd_uuid))
-            else:
-                nsd_RO = deepcopy(nsd)
-                nsd_RO["id"] = RO_osm_nsd_id
-                nsd_RO.pop("_id", None)
-                nsd_RO.pop("_admin", None)
-                for c_vnf in nsd_RO.get("constituent-vnfd", ()):
-                    member_vnf_index = c_vnf["member-vnf-index"]
-                    c_vnf["vnfd-id-ref"] = vnf_index_2_RO_id[member_vnf_index]
-                for c_vld in nsd_RO.get("vld", ()):
-                    for cp in c_vld.get("vnfd-connection-point-ref", ()):
-                        member_vnf_index = cp["member-vnf-index-ref"]
-                        cp["vnfd-id-ref"] = vnf_index_2_RO_id[member_vnf_index]
-
-                desc = await self.RO.create("nsd", descriptor=nsd_RO)
-                db_nsr_update["_admin.nsState"] = "INSTANTIATED"
-                db_nsr_update["_admin.deployed.RO.nsd_id"] = RO_nsd_uuid = desc["uuid"]
-                self.logger.debug(logging_text + "nsd={} created at RO. RO_id={}".format(nsd_ref, RO_nsd_uuid))
-            self.update_db_2("nsrs", nsr_id, db_nsr_update)
-
-            # Crate ns at RO
-            stage[2] = "Creating nsd={} at RO".format(nsd_ref)
-            db_nsr_update["detailed-status"] = " ".join(stage)
-            self.update_db_2("nsrs", nsr_id, db_nsr_update)
-            self._write_op_status(nslcmop_id, stage)
-
-            # if present use it unless in error status
-            RO_nsr_id = deep_get(db_nsr, ("_admin", "deployed", "RO", "nsr_id"))
-            if RO_nsr_id:
-                try:
-                    stage[2] = "Looking for existing ns at RO"
-                    db_nsr_update["detailed-status"] = " ".join(stage)
-                    self.update_db_2("nsrs", nsr_id, db_nsr_update)
-                    self._write_op_status(nslcmop_id, stage)
-                    # self.logger.debug(logging_text + stage[2] + " RO_ns_id={}".format(RO_nsr_id))
-                    desc = await self.RO.show("ns", RO_nsr_id)
-
-                except ROclient.ROClientException as e:
-                    if e.http_code != HTTPStatus.NOT_FOUND:
-                        raise
-                    RO_nsr_id = db_nsr_update["_admin.deployed.RO.nsr_id"] = None
-                if RO_nsr_id:
-                    ns_status, ns_status_info = self.RO.check_ns_status(desc)
-                    db_nsr_update["_admin.deployed.RO.nsr_status"] = ns_status
-                    if ns_status == "ERROR":
-                        stage[2] = "Deleting ns at RO. RO_ns_id={}".format(RO_nsr_id)
-                        self.logger.debug(logging_text + stage[2])
-                        await self.RO.delete("ns", RO_nsr_id)
-                        RO_nsr_id = db_nsr_update["_admin.deployed.RO.nsr_id"] = None
-            if not RO_nsr_id:
-                stage[2] = "Checking dependencies"
-                db_nsr_update["detailed-status"] = " ".join(stage)
-                self.update_db_2("nsrs", nsr_id, db_nsr_update)
-                self._write_op_status(nslcmop_id, stage)
-                # self.logger.debug(logging_text + stage[2])
-
-                # check if VIM is creating and wait  look if previous tasks in process
-                task_name, task_dependency = self.lcm_tasks.lookfor_related("vim_account", ns_params["vimAccountId"])
-                if task_dependency:
-                    stage[2] = "Waiting for related tasks '{}' to be completed".format(task_name)
-                    self.logger.debug(logging_text + stage[2])
-                    await asyncio.wait(task_dependency, timeout=3600)
-                if ns_params.get("vnf"):
-                    for vnf in ns_params["vnf"]:
-                        if "vimAccountId" in vnf:
-                            task_name, task_dependency = self.lcm_tasks.lookfor_related("vim_account",
-                                                                                        vnf["vimAccountId"])
-                        if task_dependency:
-                            stage[2] = "Waiting for related tasks '{}' to be completed.".format(task_name)
-                            self.logger.debug(logging_text + stage[2])
-                            await asyncio.wait(task_dependency, timeout=3600)
-
-                stage[2] = "Checking instantiation parameters."
-                RO_ns_params = self._ns_params_2_RO(ns_params, nsd, db_vnfds_ref, db_vnfrs, n2vc_key_list)
-                stage[2] = "Deploying ns at VIM."
-                db_nsr_update["detailed-status"] = " ".join(stage)
-                self.update_db_2("nsrs", nsr_id, db_nsr_update)
-                self._write_op_status(nslcmop_id, stage)
-
-                desc = await self.RO.create("ns", descriptor=RO_ns_params, name=db_nsr["name"], scenario=RO_nsd_uuid)
-                RO_nsr_id = db_nsr_update["_admin.deployed.RO.nsr_id"] = desc["uuid"]
-                db_nsr_update["_admin.nsState"] = "INSTANTIATED"
-                db_nsr_update["_admin.deployed.RO.nsr_status"] = "BUILD"
-                self.logger.debug(logging_text + "ns created at RO. RO_id={}".format(desc["uuid"]))
-
-            # wait until NS is ready
-            stage[2] = "Waiting VIM to deploy ns."
-            db_nsr_update["detailed-status"] = " ".join(stage)
-            self.update_db_2("nsrs", nsr_id, db_nsr_update)
-            self._write_op_status(nslcmop_id, stage)
-            detailed_status_old = None
-            self.logger.debug(logging_text + stage[2] + " RO_ns_id={}".format(RO_nsr_id))
-
-            old_desc = None
-            while time() <= start_deploy + timeout_ns_deploy:
-                desc = await self.RO.show("ns", RO_nsr_id)
-
-                # deploymentStatus
-                if desc != old_desc:
-                    # desc has changed => update db
-                    self._on_update_ro_db(nsrs_id=nsr_id, ro_descriptor=desc)
-                    old_desc = desc
+                    raise LcmException("target KDU={} is in error state".format(kdu_name))
 
-                    ns_status, ns_status_info = self.RO.check_ns_status(desc)
-                    db_nsr_update["_admin.deployed.RO.nsr_status"] = ns_status
-                    if ns_status == "ERROR":
-                        raise ROclient.ROClientException(ns_status_info)
-                    elif ns_status == "BUILD":
-                        stage[2] = "VIM: ({})".format(ns_status_info)
-                    elif ns_status == "ACTIVE":
-                        stage[2] = "Waiting for management IP address reported by the VIM. Updating VNFRs."
-                        try:
-                            self.ns_update_vnfr(db_vnfrs, desc)
-                            break
-                        except LcmExceptionNoMgmtIP:
-                            pass
-                    else:
-                        assert False, "ROclient.check_ns_status returns unknown {}".format(ns_status)
-                    if stage[2] != detailed_status_old:
-                        detailed_status_old = stage[2]
-                        db_nsr_update["detailed-status"] = " ".join(stage)
-                        self.update_db_2("nsrs", nsr_id, db_nsr_update)
-                        self._write_op_status(nslcmop_id, stage)
-                    await asyncio.sleep(5, loop=self.loop)
-            else:  # timeout_ns_deploy
-                raise ROclient.ROClientException("Timeout waiting ns to be ready")
-
-            # Updating NSR
-            self.ns_update_nsr(db_nsr_update, db_nsr, desc)
-
-            db_nsr_update["_admin.deployed.RO.operational-status"] = "running"
-            # db_nsr["_admin.deployed.RO.detailed-status"] = "Deployed at VIM"
-            stage[2] = "Deployed at VIM"
-            db_nsr_update["detailed-status"] = " ".join(stage)
-            self.update_db_2("nsrs", nsr_id, db_nsr_update)
-            self._write_op_status(nslcmop_id, stage)
-            # await self._on_update_n2vc_db("nsrs", {"_id": nsr_id}, "_admin.deployed", db_nsr_update)
-            # self.logger.debug(logging_text + "Deployed at VIM")
-        except (ROclient.ROClientException, LcmException, DbException) as e:
-            stage[2] = "ERROR deploying at VIM"
-            self.set_vnfr_at_error(db_vnfrs, str(e))
-            raise
+            await asyncio.sleep(10, loop=self.loop)
+            nb_tries += 1
+        raise LcmException("Timeout waiting KDU={} instantiated".format(kdu_name))
 
     async def wait_vm_up_insert_key_ro(self, logging_text, nsr_id, vnfr_id, vdu_id, vdu_index, pub_key=None, user=None):
         """
@@ -1006,7 +1041,7 @@ class NsLcm(LcmBase):
         :return: IP address
         """
 
-        self.logger.debug(logging_text + "Starting wait_vm_up_insert_key_ro")
+        self.logger.debug(logging_text + "Starting wait_vm_up_insert_key_ro")
         ro_nsr_id = None
         ip_address = None
         nb_tries = 0
@@ -1041,13 +1076,18 @@ class NsLcm(LcmBase):
                 if not vdur:
                     raise LcmException("Not found vnfr_id={}, vdu_id={}, vdu_index={}".format(vnfr_id, vdu_id,
                                                                                               vdu_index))
-
-                if vdur.get("pdu-type") or vdur.get("status") == "ACTIVE":
+                # New generation RO stores information at "vim_info"
+                ng_ro_status = None
+                target_vim = None
+                if vdur.get("vim_info"):
+                    target_vim = next(t for t in vdur["vim_info"])  # there should be only one key
+                    ng_ro_status = vdur["vim_info"][target_vim].get("vim_status")
+                if vdur.get("pdu-type") or vdur.get("status") == "ACTIVE" or ng_ro_status == "ACTIVE":
                     ip_address = vdur.get("ip-address")
                     if not ip_address:
                         continue
                     target_vdu_id = vdur["vdu-id-ref"]
-                elif vdur.get("status") == "ERROR":
+                elif vdur.get("status") == "ERROR" or ng_ro_status == "ERROR":
                     raise LcmException("Cannot inject ssh-key because target VM is in error state")
 
             if not target_vdu_id:
@@ -1055,34 +1095,45 @@ class NsLcm(LcmBase):
 
             # inject public key into machine
             if pub_key and user:
-                # wait until NS is deployed at RO
-                if not ro_nsr_id:
-                    db_nsrs = self.db.get_one("nsrs", {"_id": nsr_id})
-                    ro_nsr_id = deep_get(db_nsrs, ("_admin", "deployed", "RO", "nsr_id"))
-                if not ro_nsr_id:
-                    continue
-
-                # self.logger.debug(logging_text + "Inserting RO key")
+                self.logger.debug(logging_text + "Inserting RO key")
+                self.logger.debug("SSH > PubKey > {}".format(pub_key))
                 if vdur.get("pdu-type"):
                     self.logger.error(logging_text + "Cannot inject ssh-ky to a PDU")
                     return ip_address
                 try:
                     ro_vm_id = "{}-{}".format(db_vnfr["member-vnf-index-ref"], target_vdu_id)  # TODO add vdu_index
-                    result_dict = await self.RO.create_action(
-                        item="ns",
-                        item_id_name=ro_nsr_id,
-                        descriptor={"add_public_key": pub_key, "vms": [ro_vm_id], "user": user}
-                    )
-                    # result_dict contains the format {VM-id: {vim_result: 200, description: text}}
-                    if not result_dict or not isinstance(result_dict, dict):
-                        raise LcmException("Unknown response from RO when injecting key")
-                    for result in result_dict.values():
-                        if result.get("vim_result") == 200:
-                            break
-                        else:
-                            raise ROclient.ROClientException("error injecting key: {}".format(
-                                result.get("description")))
-                    break
+                    if self.ng_ro:
+                        target = {"action": {"action": "inject_ssh_key", "key": pub_key, "user": user},
+                                  "vnf": [{"_id": vnfr_id, "vdur": [{"id": vdur["id"]}]}],
+                                  }
+                        desc = await self.RO.deploy(nsr_id, target)
+                        action_id = desc["action_id"]
+                        await self._wait_ng_ro(nsr_id, action_id, timeout=600)
+                        break
+                    else:
+                        # wait until NS is deployed at RO
+                        if not ro_nsr_id:
+                            db_nsrs = self.db.get_one("nsrs", {"_id": nsr_id})
+                            ro_nsr_id = deep_get(db_nsrs, ("_admin", "deployed", "RO", "nsr_id"))
+                        if not ro_nsr_id:
+                            continue
+                        result_dict = await self.RO.create_action(
+                            item="ns",
+                            item_id_name=ro_nsr_id,
+                            descriptor={"add_public_key": pub_key, "vms": [ro_vm_id], "user": user}
+                        )
+                        # result_dict contains the format {VM-id: {vim_result: 200, description: text}}
+                        if not result_dict or not isinstance(result_dict, dict):
+                            raise LcmException("Unknown response from RO when injecting key")
+                        for result in result_dict.values():
+                            if result.get("vim_result") == 200:
+                                break
+                            else:
+                                raise ROclient.ROClientException("error injecting key: {}".format(
+                                    result.get("description")))
+                        break
+                except NgRoException as e:
+                    raise LcmException("Reaching max tries injecting key. Error: {}".format(e))
                 except ROclient.ROClientException as e:
                     if not nb_tries:
                         self.logger.debug(logging_text + "error injecting key: {}. Retrying until {} seconds".
@@ -1129,12 +1180,20 @@ class NsLcm(LcmBase):
 
         raise LcmException("Configuration aborted because dependent charm/s timeout")
 
+    def get_vca_id(self, db_vnfr: dict, db_nsr: dict):
+        return (
+            deep_get(db_vnfr, ("vca-id",)) or
+            deep_get(db_nsr, ("instantiate_params", "vcaId"))
+        )
+
     async def instantiate_N2VC(self, logging_text, vca_index, nsi_id, db_nsr, db_vnfr, vdu_id, kdu_name, vdu_index,
-                               config_descriptor, deploy_params, base_folder, nslcmop_id, stage):
+                               config_descriptor, deploy_params, base_folder, nslcmop_id, stage, vca_type, vca_name,
+                               ee_config_descriptor):
         nsr_id = db_nsr["_id"]
         db_update_entry = "_admin.deployed.VCA.{}.".format(vca_index)
         vca_deployed_list = db_nsr["_admin"]["deployed"]["VCA"]
         vca_deployed = db_nsr["_admin"]["deployed"]["VCA"][vca_index]
+        osm_config = {"osm": {"ns_id": db_nsr["_id"]}}
         db_dict = {
             'collection': 'nsrs',
             'filter': {'_id': nsr_id},
@@ -1149,6 +1208,7 @@ class NsLcm(LcmBase):
             vnfr_id = None
             if db_vnfr:
                 vnfr_id = db_vnfr["_id"]
+                osm_config["osm"]["vnf_id"] = vnfr_id
 
             namespace = "{nsi}.{ns}".format(
                 nsi=nsi_id if nsi_id else "",
@@ -1157,34 +1217,47 @@ class NsLcm(LcmBase):
             if vnfr_id:
                 element_type = 'VNF'
                 element_under_configuration = vnfr_id
-                namespace += ".{}".format(vnfr_id)
+                namespace += ".{}-{}".format(vnfr_id, vdu_index or 0)
                 if vdu_id:
                     namespace += ".{}-{}".format(vdu_id, vdu_index or 0)
                     element_type = 'VDU'
                     element_under_configuration = "{}-{}".format(vdu_id, vdu_index or 0)
+                    osm_config["osm"]["vdu_id"] = vdu_id
                 elif kdu_name:
-                    namespace += ".{}".format(kdu_name)
+                    namespace += ".{}.{}".format(kdu_name, vdu_index or 0)
                     element_type = 'KDU'
                     element_under_configuration = kdu_name
+                    osm_config["osm"]["kdu_name"] = kdu_name
 
             # Get artifact path
-            artifact_path = "{}/{}/charms/{}".format(
+            artifact_path = "{}/{}/{}/{}".format(
                 base_folder["folder"],
                 base_folder["pkg-dir"],
-                config_descriptor["juju"]["charm"]
+                "charms" if vca_type in ("native_charm", "lxc_proxy_charm", "k8s_proxy_charm") else "helm-charts",
+                vca_name
             )
 
-            is_proxy_charm = deep_get(config_descriptor, ('juju', 'charm')) is not None
-            if deep_get(config_descriptor, ('juju', 'proxy')) is False:
-                is_proxy_charm = False
+            self.logger.debug("Artifact path > {}".format(artifact_path))
 
-            # n2vc_redesign STEP 3.1
+            # get initial_config_primitive_list that applies to this element
+            initial_config_primitive_list = config_descriptor.get('initial-config-primitive')
+
+            self.logger.debug("Initial config primitive list > {}".format(initial_config_primitive_list))
+
+            # add config if not present for NS charm
+            ee_descriptor_id = ee_config_descriptor.get("id")
+            self.logger.debug("EE Descriptor > {}".format(ee_descriptor_id))
+            initial_config_primitive_list = get_ee_sorted_initial_config_primitive_list(initial_config_primitive_list,
+                                                                                        vca_deployed, ee_descriptor_id)
 
+            self.logger.debug("Initial config primitive list #2 > {}".format(initial_config_primitive_list))
+            # n2vc_redesign STEP 3.1
             # find old ee_id if exists
             ee_id = vca_deployed.get("ee_id")
 
+            vca_id = self.get_vca_id(db_vnfr, db_nsr)
             # create or register execution environment in VCA
-            if is_proxy_charm:
+            if vca_type in ("lxc_proxy_charm", "k8s_proxy_charm", "helm", "helm-v3"):
 
                 self._write_configuration_status(
                     nsr_id=nsr_id,
@@ -1195,12 +1268,36 @@ class NsLcm(LcmBase):
                 )
 
                 step = "create execution environment"
-                self.logger.debug(logging_text + step)
-                ee_id, credentials = await self.n2vc.create_execution_environment(namespace=namespace,
-                                                                                  reuse_ee_id=ee_id,
-                                                                                  db_dict=db_dict)
+                self.logger.debug(logging_text + step)                
+
+                ee_id = None
+                credentials = None
+                if vca_type == "k8s_proxy_charm":
+                    ee_id = await self.vca_map[vca_type].install_k8s_proxy_charm(
+                        charm_name=artifact_path[artifact_path.rfind("/") + 1:],
+                        namespace=namespace,
+                        artifact_path=artifact_path,
+                        db_dict=db_dict,
+                        vca_id=vca_id,
+                    )
+                elif vca_type == "helm" or vca_type == "helm-v3":     
+                    ee_id, credentials = await self.vca_map[vca_type].create_execution_environment(
+                        namespace=namespace,
+                        reuse_ee_id=ee_id,
+                        db_dict=db_dict,
+                        config=osm_config,
+                        artifact_path=artifact_path,
+                        vca_type=vca_type
+                    )
+                else:                    
+                    ee_id, credentials = await self.vca_map[vca_type].create_execution_environment(
+                        namespace=namespace,
+                        reuse_ee_id=ee_id,
+                        db_dict=db_dict,
+                        vca_id=vca_id,
+                    )
 
-            else:
+            elif vca_type == "native_charm":
                 step = "Waiting to VM being up and getting IP address"
                 self.logger.debug(logging_text + step)
                 rw_mgmt_ip = await self.wait_vm_up_insert_key_ro(logging_text, nsr_id, vnfr_id, vdu_id, vdu_index,
@@ -1210,14 +1307,14 @@ class NsLcm(LcmBase):
                 username = deep_get(config_descriptor, ("config-access", "ssh-access", "default-user"))
                 # TODO remove this when changes on IM regarding config-access:ssh-access:default-user were
                 #  merged. Meanwhile let's get username from initial-config-primitive
-                if not username and config_descriptor.get("initial-config-primitive"):
-                    for config_primitive in config_descriptor["initial-config-primitive"]:
+                if not username and initial_config_primitive_list:
+                    for config_primitive in initial_config_primitive_list:
                         for param in config_primitive.get("parameter", ()):
                             if param["name"] == "ssh-username":
                                 username = param["value"]
                                 break
                 if not username:
-                    raise LcmException("Cannot determine the username neither with 'initial-config-promitive' nor with "
+                    raise LcmException("Cannot determine the username neither with 'initial-config-primitive' nor with "
                                        "'config-access.ssh-access.default-user'")
                 credentials["username"] = username
                 # n2vc_redesign STEP 3.2
@@ -1232,20 +1329,24 @@ class NsLcm(LcmBase):
 
                 step = "register execution environment {}".format(credentials)
                 self.logger.debug(logging_text + step)
-                ee_id = await self.n2vc.register_execution_environment(credentials=credentials, namespace=namespace,
-                                                                       db_dict=db_dict)
+                ee_id = await self.vca_map[vca_type].register_execution_environment(
+                    credentials=credentials,
+                    namespace=namespace,
+                    db_dict=db_dict,
+                    vca_id=vca_id,
+                )
 
             # for compatibility with MON/POL modules, the need model and application name at database
-            # TODO ask to N2VC instead of assuming the format "model_name.application_name"
+            # TODO ask MON/POL if needed to not assuming anymore the format "model_name.application_name"
             ee_id_parts = ee_id.split('.')
-            model_name = ee_id_parts[0]
-            application_name = ee_id_parts[1]
-            db_nsr_update = {db_update_entry + "model": model_name,
-                             db_update_entry + "application": application_name,
-                             db_update_entry + "ee_id": ee_id}
+            db_nsr_update = {db_update_entry + "ee_id": ee_id}
+            if len(ee_id_parts) >= 2:
+                model_name = ee_id_parts[0]
+                application_name = ee_id_parts[1]
+                db_nsr_update[db_update_entry + "model"] = model_name
+                db_nsr_update[db_update_entry + "application"] = application_name
 
             # n2vc_redesign STEP 3.3
-
             step = "Install configuration Software"
 
             self._write_configuration_status(
@@ -1260,50 +1361,73 @@ class NsLcm(LcmBase):
             # TODO check if already done
             self.logger.debug(logging_text + step)
             config = None
-            if not is_proxy_charm:
-                initial_config_primitive_list = config_descriptor.get('initial-config-primitive')
-                if initial_config_primitive_list:
-                    for primitive in initial_config_primitive_list:
-                        if primitive["name"] == "config":
-                            config = self._map_primitive_params(
-                                primitive,
-                                {},
-                                deploy_params
-                            )
+            if vca_type == "native_charm":
+                config_primitive = next((p for p in initial_config_primitive_list if p["name"] == "config"), None)
+                if config_primitive:
+                    config = self._map_primitive_params(
+                        config_primitive,
+                        {},
+                        deploy_params
+                    )
+            num_units = 1
+            if vca_type == "lxc_proxy_charm":
+                if element_type == "NS":
+                    num_units = db_nsr.get("config-units") or 1
+                elif element_type == "VNF":
+                    num_units = db_vnfr.get("config-units") or 1
+                elif element_type == "VDU":
+                    for v in db_vnfr["vdur"]:
+                        if vdu_id == v["vdu-id-ref"]:
+                            num_units = v.get("config-units") or 1
                             break
-            await self.n2vc.install_configuration_sw(
-                ee_id=ee_id,
-                artifact_path=artifact_path,
-                db_dict=db_dict,
-                config=config
-            )
+            if vca_type != "k8s_proxy_charm":
+                await self.vca_map[vca_type].install_configuration_sw(
+                    ee_id=ee_id,
+                    artifact_path=artifact_path,
+                    db_dict=db_dict,
+                    config=config,
+                    num_units=num_units,
+                    vca_id=vca_id,
+                )
 
             # write in db flag of configuration_sw already installed
             self.update_db_2("nsrs", nsr_id, {db_update_entry + "config_sw_installed": True})
 
             # add relations for this VCA (wait for other peers related with this VCA)
-            await self._add_vca_relations(logging_text=logging_text, nsr_id=nsr_id, vca_index=vca_index)
+            await self._add_vca_relations(logging_text=logging_text, nsr_id=nsr_id,
+                                          vca_index=vca_index, vca_id=vca_id, vca_type=vca_type)
 
             # if SSH access is required, then get execution environment SSH public
-            if is_proxy_charm:  # if native charm we have waited already to VM be UP
+            # if native charm we have waited already to VM be UP
+            if vca_type in ("k8s_proxy_charm", "lxc_proxy_charm", "helm", "helm-v3"):
                 pub_key = None
                 user = None
+                # self.logger.debug("get ssh key block")
                 if deep_get(config_descriptor, ("config-access", "ssh-access", "required")):
+                    # self.logger.debug("ssh key needed")
                     # Needed to inject a ssh key
                     user = deep_get(config_descriptor, ("config-access", "ssh-access", "default-user"))
                     step = "Install configuration Software, getting public ssh key"
-                    pub_key = await self.n2vc.get_ee_ssh_public__key(ee_id=ee_id, db_dict=db_dict)
+                    pub_key = await self.vca_map[vca_type].get_ee_ssh_public__key(
+                        ee_id=ee_id,
+                        db_dict=db_dict,
+                        vca_id=vca_id
+                    )
 
                     step = "Insert public key into VM user={} ssh_key={}".format(user, pub_key)
                 else:
+                    # self.logger.debug("no need to get ssh key")
                     step = "Waiting to VM being up and getting IP address"
                 self.logger.debug(logging_text + step)
 
                 # n2vc_redesign STEP 5.1
                 # wait for RO (ip-address) Insert pub_key into VM
                 if vnfr_id:
-                    rw_mgmt_ip = await self.wait_vm_up_insert_key_ro(logging_text, nsr_id, vnfr_id, vdu_id, vdu_index,
-                                                                     user=user, pub_key=pub_key)
+                    if kdu_name:
+                        rw_mgmt_ip = await self.wait_kdu_up(logging_text, nsr_id, vnfr_id, kdu_name)
+                    else:
+                        rw_mgmt_ip = await self.wait_vm_up_insert_key_ro(logging_text, nsr_id, vnfr_id, vdu_id,
+                                                                         vdu_index, user=user, pub_key=pub_key)
                 else:
                     rw_mgmt_ip = None   # This is for a NS configuration
 
@@ -1314,20 +1438,6 @@ class NsLcm(LcmBase):
 
             # n2vc_redesign STEP 6  Execute initial config primitive
             step = 'execute initial config primitive'
-            initial_config_primitive_list = config_descriptor.get('initial-config-primitive')
-
-            # sort initial config primitives by 'seq'
-            if initial_config_primitive_list:
-                try:
-                    initial_config_primitive_list.sort(key=lambda val: int(val['seq']))
-                except Exception as e:
-                    self.logger.error(logging_text + step + ": " + str(e))
-            else:
-                self.logger.debug(logging_text + step + ": No initial-config-primitive")
-
-            # add config if not present for NS charm
-            initial_config_primitive_list = self._get_initial_config_primitive_list(initial_config_primitive_list,
-                                                                                    vca_deployed)
 
             # wait for dependent primitives execution (NS -> VNF -> VDU)
             if initial_config_primitive_list:
@@ -1366,11 +1476,12 @@ class NsLcm(LcmBase):
 
                 step = "execute primitive '{}' params '{}'".format(initial_config_primitive["name"], primitive_params_)
                 self.logger.debug(logging_text + step)
-                await self.n2vc.exec_primitive(
+                await self.vca_map[vca_type].exec_primitive(
                     ee_id=ee_id,
                     primitive_name=initial_config_primitive["name"],
                     params_dict=primitive_params_,
-                    db_dict=db_dict
+                    db_dict=db_dict,
+                    vca_id=vca_id,
                 )
                 # Once some primitive has been exec, check and write at db if it needs to exec terminated primitives
                 if check_if_terminated_needed:
@@ -1380,6 +1491,19 @@ class NsLcm(LcmBase):
 
                 # TODO register in database that primitive is done
 
+            # STEP 7 Configure metrics
+            if vca_type == "helm" or vca_type == "helm-v3":
+                prometheus_jobs = await self.add_prometheus_metrics(
+                    ee_id=ee_id,
+                    artifact_path=artifact_path,
+                    ee_config_descriptor=ee_config_descriptor,
+                    vnfr_id=vnfr_id,
+                    nsr_id=nsr_id,
+                    target_ip=rw_mgmt_ip,
+                )
+                if prometheus_jobs:
+                    self.update_db_2("nsrs", nsr_id, {db_update_entry + "prometheus_jobs": prometheus_jobs})
+
             step = "instantiated at VCA"
             self.logger.debug(logging_text + step)
 
@@ -1547,9 +1671,6 @@ class NsLcm(LcmBase):
         logging_text = "Task ns={} instantiate={} ".format(nsr_id, nslcmop_id)
         self.logger.debug(logging_text + "Enter")
 
-        # Sync from FSMongo
-        self.fs.sync()
-
         # get all needed from database
 
         # database nsrs record
@@ -1575,8 +1696,11 @@ class NsLcm(LcmBase):
             # wait for any previous tasks in process
             await self.lcm_tasks.waitfor_related_HA('ns', 'nslcmops', nslcmop_id)
 
+            stage[1] = "Sync filesystem from database."
+            self.fs.sync()  # TODO, make use of partial sync, only for the needed packages
+
             # STEP 0: Reading database (nslcmops, nsrs, nsds, vnfrs, vnfds)
-            stage[1] = "Reading from database,"
+            stage[1] = "Reading from database."
             # nsState="BUILDING", currentOperation="INSTANTIATING", currentOperationID=nslcmop_id
             db_nsr_update["detailed-status"] = "creating"
             db_nsr_update["operational-status"] = "init"
@@ -1594,7 +1718,7 @@ class NsLcm(LcmBase):
             )
 
             # read from db: operation
-            stage[1] = "Getting nslcmop={} from db".format(nslcmop_id)
+            stage[1] = "Getting nslcmop={} from db.".format(nslcmop_id)
             db_nslcmop = self.db.get_one("nslcmops", {"_id": nslcmop_id})
             ns_params = db_nslcmop.get("operationParams")
             if ns_params and ns_params.get("timeout_ns_deploy"):
@@ -1603,39 +1727,36 @@ class NsLcm(LcmBase):
                 timeout_ns_deploy = self.timeout.get("ns_deploy", self.timeout_ns_deploy)
 
             # read from db: ns
-            stage[1] = "Getting nsr={} from db".format(nsr_id)
+            stage[1] = "Getting nsr={} from db.".format(nsr_id)
             db_nsr = self.db.get_one("nsrs", {"_id": nsr_id})
-            stage[1] = "Getting nsd={} from db".format(db_nsr["nsd-id"])
+            stage[1] = "Getting nsd={} from db.".format(db_nsr["nsd-id"])
             nsd = self.db.get_one("nsds", {"_id": db_nsr["nsd-id"]})
             db_nsr["nsd"] = nsd
             # nsr_name = db_nsr["name"]   # TODO short-name??
 
             # read from db: vnf's of this ns
-            stage[1] = "Getting vnfrs from db"
+            stage[1] = "Getting vnfrs from db."
             self.logger.debug(logging_text + stage[1])
             db_vnfrs_list = self.db.get_list("vnfrs", {"nsr-id-ref": nsr_id})
 
             # read from db: vnfd's for every vnf
-            db_vnfds_ref = {}     # every vnfd data indexed by vnf name
-            db_vnfds = {}         # every vnfd data indexed by vnf id
-            db_vnfds_index = {}   # every vnfd data indexed by vnf member-index
+            db_vnfds = []         # every vnfd data
 
             # for each vnf in ns, read vnfd
             for vnfr in db_vnfrs_list:
-                db_vnfrs[vnfr["member-vnf-index-ref"]] = vnfr   # vnf's dict indexed by member-index: '1', '2', etc
-                vnfd_id = vnfr["vnfd-id"]                       # vnfd uuid for this vnf
-                vnfd_ref = vnfr["vnfd-ref"]                     # vnfd name for this vnf
+                db_vnfrs[vnfr["member-vnf-index-ref"]] = vnfr
+                vnfd_id = vnfr["vnfd-id"]
+                vnfd_ref = vnfr["vnfd-ref"]
+
                 # if we haven't this vnfd, read it from db
                 if vnfd_id not in db_vnfds:
                     # read from db
-                    stage[1] = "Getting vnfd={} id='{}' from db".format(vnfd_id, vnfd_ref)
+                    stage[1] = "Getting vnfd={} id='{}' from db.".format(vnfd_id, vnfd_ref)
                     self.logger.debug(logging_text + stage[1])
                     vnfd = self.db.get_one("vnfds", {"_id": vnfd_id})
 
                     # store vnfd
-                    db_vnfds_ref[vnfd_ref] = vnfd     # vnfd's indexed by name
-                    db_vnfds[vnfd_id] = vnfd          # vnfd's indexed by id
-                db_vnfds_index[vnfr["member-vnf-index-ref"]] = db_vnfds[vnfd_id]  # vnfd's indexed by member-index
+                    db_vnfds.append(vnfd)
 
             # Get or generates the _admin.deployed.VCA list
             vca_deployed_list = None
@@ -1661,6 +1782,7 @@ class NsLcm(LcmBase):
             # set state to INSTANTIATED. When instantiated NBI will not delete directly
             db_nsr_update["_admin.nsState"] = "INSTANTIATED"
             self.update_db_2("nsrs", nsr_id, db_nsr_update)
+            self.db.set_list("vnfrs", {"nsr-id-ref": nsr_id}, {"_admin.nsState": "INSTANTIATED"})
 
             # n2vc_redesign STEP 2 Deploy Network Scenario
             stage[0] = 'Stage 2/5: deployment of KDUs, VMs and execution environments.'
@@ -1669,7 +1791,7 @@ class NsLcm(LcmBase):
                 stage=stage
             )
 
-            stage[1] = "Deploying KDUs,"
+            stage[1] = "Deploying KDUs."
             # self.logger.debug(logging_text + "Before deploy_kdus")
             # Call to deploy_kdus in case exists the "vdu:kdu" param
             await self.deploy_kdus(
@@ -1698,7 +1820,7 @@ class NsLcm(LcmBase):
                     db_nsr=db_nsr,
                     db_nslcmop=db_nslcmop,
                     db_vnfrs=db_vnfrs,
-                    db_vnfds_ref=db_vnfds_ref,
+                    db_vnfds=db_vnfds,
                     n2vc_key_list=n2vc_key_list,
                     stage=stage
                 )
@@ -1711,11 +1833,10 @@ class NsLcm(LcmBase):
             self.logger.debug(logging_text + stage[1])
 
             nsi_id = None  # TODO put nsi_id when this nsr belongs to a NSI
-            # get_iterable() returns a value from a dict or empty tuple if key does not exist
-            for c_vnf in get_iterable(nsd, "constituent-vnfd"):
-                vnfd_id = c_vnf["vnfd-id-ref"]
-                vnfd = db_vnfds_ref[vnfd_id]
-                member_vnf_index = str(c_vnf["member-vnf-index"])
+            for vnf_profile in get_vnf_profiles(nsd):
+                vnfd_id = vnf_profile["vnfd-id"]
+                vnfd = find_in_list(db_vnfds, lambda a_vnf: a_vnf["id"] == vnfd_id)
+                member_vnf_index = str(vnf_profile["id"])
                 db_vnfr = db_vnfrs[member_vnf_index]
                 base_folder = vnfd["_admin"]["storage"]
                 vdu_id = None
@@ -1724,12 +1845,12 @@ class NsLcm(LcmBase):
                 kdu_name = None
 
                 # Get additional parameters
-                deploy_params = {}
+                deploy_params = {"OSM": get_osm_params(db_vnfr)}
                 if db_vnfr.get("additionalParamsForVnf"):
-                    deploy_params = self._format_additional_params(db_vnfr["additionalParamsForVnf"].copy())
+                    deploy_params.update(parse_yaml_strings(db_vnfr["additionalParamsForVnf"].copy()))
 
-                descriptor_config = vnfd.get("vnf-configuration")
-                if descriptor_config and descriptor_config.get("juju"):
+                descriptor_config = get_configuration(vnfd, vnfd["id"])
+                if descriptor_config:
                     self._deploy_n2vc(
                         logging_text=logging_text + "member_vnf_index={} ".format(member_vnf_index),
                         db_nsr=db_nsr,
@@ -1751,26 +1872,24 @@ class NsLcm(LcmBase):
                     )
 
                 # Deploy charms for each VDU that supports one.
-                for vdud in get_iterable(vnfd, 'vdu'):
+                for vdud in get_vdu_list(vnfd):
                     vdu_id = vdud["id"]
-                    descriptor_config = vdud.get('vdu-configuration')
-                    vdur = next((x for x in db_vnfr["vdur"] if x["vdu-id-ref"] == vdu_id), None)
+                    descriptor_config = get_configuration(vnfd, vdu_id)
+                    vdur = find_in_list(db_vnfr["vdur"], lambda vdu: vdu["vdu-id-ref"] == vdu_id)
+
                     if vdur.get("additionalParams"):
-                        deploy_params_vdu = self._format_additional_params(vdur["additionalParams"])
+                        deploy_params_vdu = parse_yaml_strings(vdur["additionalParams"])
                     else:
                         deploy_params_vdu = deploy_params
-                    if descriptor_config and descriptor_config.get("juju"):
-                        # look for vdu index in the db_vnfr["vdu"] section
-                        # for vdur_index, vdur in enumerate(db_vnfr["vdur"]):
-                        #     if vdur["vdu-id-ref"] == vdu_id:
-                        #         break
-                        # else:
-                        #     raise LcmException("Mismatch vdu_id={} not found in the vnfr['vdur'] list for "
-                        #                        "member_vnf_index={}".format(vdu_id, member_vnf_index))
-                        # vdu_name = vdur.get("name")
+                    deploy_params_vdu["OSM"] = get_osm_params(db_vnfr, vdu_id, vdu_count_index=0)
+                    vdud_count = get_vdu_profile(vnfd, vdu_id).get("max-number-of-instances", 1)
+
+                    self.logger.debug("VDUD > {}".format(vdud))
+                    self.logger.debug("Descriptor config > {}".format(descriptor_config))
+                    if descriptor_config:
                         vdu_name = None
                         kdu_name = None
-                        for vdu_index in range(int(vdud.get("count", 1))):
+                        for vdu_index in range(vdud_count):
                             # TODO vnfr_params["rw_mgmt_ip"] = vdur["ip-address"]
                             self._deploy_n2vc(
                                 logging_text=logging_text + "member_vnf_index={}, vdu_id={}, vdu_index={} ".format(
@@ -1792,22 +1911,17 @@ class NsLcm(LcmBase):
                                 task_instantiation_info=tasks_dict_info,
                                 stage=stage
                             )
-                for kdud in get_iterable(vnfd, 'kdu'):
+                for kdud in get_kdu_list(vnfd):
                     kdu_name = kdud["name"]
-                    descriptor_config = kdud.get('kdu-configuration')
-                    if descriptor_config and descriptor_config.get("juju"):
+                    descriptor_config = get_configuration(vnfd, kdu_name)
+                    if descriptor_config:
                         vdu_id = None
                         vdu_index = 0
                         vdu_name = None
-                        # look for vdu index in the db_vnfr["vdu"] section
-                        # for vdur_index, vdur in enumerate(db_vnfr["vdur"]):
-                        #     if vdur["vdu-id-ref"] == vdu_id:
-                        #         break
-                        # else:
-                        #     raise LcmException("Mismatch vdu_id={} not found in the vnfr['vdur'] list for "
-                        #                        "member_vnf_index={}".format(vdu_id, member_vnf_index))
-                        # vdu_name = vdur.get("name")
-                        # vdu_name = None
+                        kdur = next(x for x in db_vnfr["kdur"] if x["kdu-name"] == kdu_name)
+                        deploy_params_kdu = {"OSM": get_osm_params(db_vnfr)}
+                        if kdur.get("additionalParams"):
+                            deploy_params_kdu = parse_yaml_strings(kdur["additionalParams"])
 
                         self._deploy_n2vc(
                             logging_text=logging_text,
@@ -1822,7 +1936,7 @@ class NsLcm(LcmBase):
                             member_vnf_index=member_vnf_index,
                             vdu_index=vdu_index,
                             vdu_name=vdu_name,
-                            deploy_params=deploy_params,
+                            deploy_params=deploy_params_kdu,
                             descriptor_config=descriptor_config,
                             base_folder=base_folder,
                             task_instantiation_info=tasks_dict_info,
@@ -1841,9 +1955,9 @@ class NsLcm(LcmBase):
                 vdu_name = None
 
                 # Get additional parameters
-                deploy_params = {}
+                deploy_params = {"OSM": {"vim_account_id": ns_params["vimAccountId"]}}
                 if db_nsr.get("additionalParamsForNs"):
-                    deploy_params = self._format_additional_params(db_nsr["additionalParamsForNs"].copy())
+                    deploy_params.update(parse_yaml_strings(db_nsr["additionalParamsForNs"].copy()))
                 base_folder = nsd["_admin"]["storage"]
                 self._deploy_n2vc(
                     logging_text=logging_text,
@@ -1910,8 +2024,8 @@ class NsLcm(LcmBase):
             if error_list:
                 error_detail = ". ".join(error_list)
                 self.logger.error(logging_text + error_detail)
-                error_description_nslcmop = 'Stage: {}. Detail: {}'.format(stage[0], error_detail)
-                error_description_nsr = 'Operation: INSTANTIATING.{}, Stage {}'.format(nslcmop_id, stage[0])
+                error_description_nslcmop = '{} Detail: {}'.format(stage[0], error_detail)
+                error_description_nsr = 'Operation: INSTANTIATING.{}, {}'.format(nslcmop_id, stage[0])
 
                 db_nsr_update["detailed-status"] = error_description_nsr + " Detail: " + error_detail
                 db_nslcmop_update["detailed-status"] = error_detail
@@ -1954,7 +2068,15 @@ class NsLcm(LcmBase):
             self.logger.debug(logging_text + "Exit")
             self.lcm_tasks.remove("ns", nsr_id, nslcmop_id, "ns_instantiate")
 
-    async def _add_vca_relations(self, logging_text, nsr_id, vca_index: int, timeout: int = 3600) -> bool:
+    async def _add_vca_relations(
+        self,
+        logging_text,
+        nsr_id,
+        vca_index: int,
+        timeout: int = 3600,
+        vca_type: str = None,
+        vca_id: str = None,
+    ) -> bool:
 
         # steps:
         # 1. find all relations for this VCA
@@ -1962,6 +2084,7 @@ class NsLcm(LcmBase):
         # 3. add relations
 
         try:
+            vca_type = vca_type or "lxc_proxy_charm"
 
             # STEP 1: find all relations for this VCA
 
@@ -1987,8 +2110,11 @@ class NsLcm(LcmBase):
             db_vnfd_list = db_nsr.get('vnfd-id')
             if db_vnfd_list:
                 for vnfd in db_vnfd_list:
+                    db_vnf_relations = None
                     db_vnfd = self.db.get_one("vnfds", {"_id": vnfd})
-                    db_vnf_relations = deep_get(db_vnfd, ('vnf-configuration', 'relation'))
+                    db_vnf_configuration = get_configuration(db_vnfd, db_vnfd["id"])
+                    if db_vnf_configuration:
+                        db_vnf_relations = db_vnf_configuration.get("relation", [])
                     if db_vnf_relations:
                         for r in db_vnf_relations:
                             # check if this VCA is in the relation
@@ -2015,7 +2141,7 @@ class NsLcm(LcmBase):
                 db_nsr = self.db.get_one("nsrs", {"_id": nsr_id})
 
                 # for each defined NS relation, find the VCA's related
-                for r in ns_relations:
+                for r in ns_relations.copy():
                     from_vca_ee_id = None
                     to_vca_ee_id = None
                     from_vca_endpoint = None
@@ -2032,11 +2158,13 @@ class NsLcm(LcmBase):
                             to_vca_endpoint = r.get('entities')[1].get('endpoint')
                     if from_vca_ee_id and to_vca_ee_id:
                         # add relation
-                        await self.n2vc.add_relation(
+                        await self.vca_map[vca_type].add_relation(
                             ee_id_1=from_vca_ee_id,
                             ee_id_2=to_vca_ee_id,
                             endpoint_1=from_vca_endpoint,
-                            endpoint_2=to_vca_endpoint)
+                            endpoint_2=to_vca_endpoint,
+                            vca_id=vca_id,
+                        )
                         # remove entry from relations list
                         ns_relations.remove(r)
                     else:
@@ -2060,26 +2188,31 @@ class NsLcm(LcmBase):
                             pass
 
                 # for each defined VNF relation, find the VCA's related
-                for r in vnf_relations:
+                for r in vnf_relations.copy():
                     from_vca_ee_id = None
                     to_vca_ee_id = None
                     from_vca_endpoint = None
                     to_vca_endpoint = None
                     vca_list = deep_get(db_nsr, ('_admin', 'deployed', 'VCA'))
                     for vca in vca_list:
-                        if vca.get('vdu_id') == r.get('entities')[0].get('id') and vca.get('config_sw_installed'):
+                        key_to_check = "vdu_id"
+                        if vca.get("vdu_id") is None:
+                            key_to_check = "vnfd_id"
+                        if vca.get(key_to_check) == r.get('entities')[0].get('id') and vca.get('config_sw_installed'):
                             from_vca_ee_id = vca.get('ee_id')
                             from_vca_endpoint = r.get('entities')[0].get('endpoint')
-                        if vca.get('vdu_id') == r.get('entities')[1].get('id') and vca.get('config_sw_installed'):
+                        if vca.get(key_to_check) == r.get('entities')[1].get('id') and vca.get('config_sw_installed'):
                             to_vca_ee_id = vca.get('ee_id')
                             to_vca_endpoint = r.get('entities')[1].get('endpoint')
                     if from_vca_ee_id and to_vca_ee_id:
                         # add relation
-                        await self.n2vc.add_relation(
+                        await self.vca_map[vca_type].add_relation(
                             ee_id_1=from_vca_ee_id,
                             ee_id_2=to_vca_ee_id,
                             endpoint_1=from_vca_endpoint,
-                            endpoint_2=to_vca_endpoint)
+                            endpoint_2=to_vca_endpoint,
+                            vca_id=vca_id,
+                        )
                         # remove entry from relations list
                         vnf_relations.remove(r)
                     else:
@@ -2093,11 +2226,11 @@ class NsLcm(LcmBase):
                                     if vca.get('vdu_id') == r.get('entities')[0].get('id'):
                                         if vca_status.get('status') == 'BROKEN':
                                             # peer broken: remove relation from list
-                                            ns_relations.remove(r)
+                                            vnf_relations.remove(r)
                                     if vca.get('vdu_id') == r.get('entities')[1].get('id'):
                                         if vca_status.get('status') == 'BROKEN':
                                             # peer broken: remove relation from list
-                                            ns_relations.remove(r)
+                                            vnf_relations.remove(r)
                         except Exception:
                             # ignore
                             pass
@@ -2115,41 +2248,157 @@ class NsLcm(LcmBase):
             self.logger.warn(logging_text + ' ERROR adding relations: {}'.format(e))
             return False
 
-    def _write_db_callback(self, task, item, _id, on_done=None, on_exc=None):
-        """
-        callback for kdu install intended to store the returned kdu_instance at database
-        :return: None
-        """
-        db_update = {}
-        try:
-            result = task.result()
-            if on_done:
-                db_update[on_done] = str(result)
+    async def _install_kdu(self, nsr_id: str, nsr_db_path: str, vnfr_data: dict, kdu_index: int, kdud: dict,
+                           vnfd: dict, k8s_instance_info: dict, k8params: dict = None, timeout: int = 600,
+                           vca_id: str = None):
+
+        try:
+            k8sclustertype = k8s_instance_info["k8scluster-type"]
+            # Instantiate kdu
+            db_dict_install = {"collection": "nsrs",
+                               "filter": {"_id": nsr_id},
+                               "path": nsr_db_path}
+
+            kdu_instance = self.k8scluster_map[k8sclustertype].generate_kdu_instance_name(
+                db_dict=db_dict_install,
+                kdu_model=k8s_instance_info["kdu-model"],
+                kdu_name=k8s_instance_info["kdu-name"],
+            )
+            self.update_db_2("nsrs", nsr_id, {nsr_db_path + ".kdu-instance": kdu_instance})
+            await self.k8scluster_map[k8sclustertype].install(
+                cluster_uuid=k8s_instance_info["k8scluster-uuid"],
+                kdu_model=k8s_instance_info["kdu-model"],
+                atomic=True,
+                params=k8params,
+                db_dict=db_dict_install,
+                timeout=timeout,
+                kdu_name=k8s_instance_info["kdu-name"],
+                namespace=k8s_instance_info["namespace"],
+                kdu_instance=kdu_instance,
+                vca_id=vca_id,
+            )
+            self.update_db_2("nsrs", nsr_id, {nsr_db_path + ".kdu-instance": kdu_instance})
+
+            # Obtain services to obtain management service ip
+            services = await self.k8scluster_map[k8sclustertype].get_services(
+                cluster_uuid=k8s_instance_info["k8scluster-uuid"],
+                kdu_instance=kdu_instance,
+                namespace=k8s_instance_info["namespace"])
+
+            # Obtain management service info (if exists)
+            vnfr_update_dict = {}
+            kdu_config = get_configuration(vnfd, kdud["name"])
+            if kdu_config:
+                target_ee_list = kdu_config.get("execution-environment-list", [])
+            else:
+                target_ee_list = []
+
+            if services:
+                vnfr_update_dict["kdur.{}.services".format(kdu_index)] = services
+                mgmt_services = [service for service in kdud.get("service", []) if service.get("mgmt-service")]
+                for mgmt_service in mgmt_services:
+                    for service in services:
+                        if service["name"].startswith(mgmt_service["name"]):
+                            # Mgmt service found, Obtain service ip
+                            ip = service.get("external_ip", service.get("cluster_ip"))
+                            if isinstance(ip, list) and len(ip) == 1:
+                                ip = ip[0]
+
+                            vnfr_update_dict["kdur.{}.ip-address".format(kdu_index)] = ip
+
+                            # Check if must update also mgmt ip at the vnf
+                            service_external_cp = mgmt_service.get("external-connection-point-ref")
+                            if service_external_cp:
+                                if deep_get(vnfd, ("mgmt-interface", "cp")) == service_external_cp:
+                                    vnfr_update_dict["ip-address"] = ip
+
+                                if find_in_list(
+                                    target_ee_list,
+                                    lambda ee: ee.get("external-connection-point-ref", "") == service_external_cp
+                                ):
+                                    vnfr_update_dict["kdur.{}.ip-address".format(kdu_index)] = ip
+                            break
+                    else:
+                        self.logger.warn("Mgmt service name: {} not found".format(mgmt_service["name"]))
+
+            vnfr_update_dict["kdur.{}.status".format(kdu_index)] = "READY"
+            self.update_db_2("vnfrs", vnfr_data.get("_id"), vnfr_update_dict)
+
+            kdu_config = get_configuration(vnfd, k8s_instance_info["kdu-name"])
+            if kdu_config and kdu_config.get("initial-config-primitive") and \
+               get_juju_ee_ref(vnfd, k8s_instance_info["kdu-name"]) is None:
+                initial_config_primitive_list = kdu_config.get("initial-config-primitive")
+                initial_config_primitive_list.sort(key=lambda val: int(val["seq"]))
+
+                for initial_config_primitive in initial_config_primitive_list:
+                    primitive_params_ = self._map_primitive_params(initial_config_primitive, {}, {})
+
+                    await asyncio.wait_for(
+                        self.k8scluster_map[k8sclustertype].exec_primitive(
+                            cluster_uuid=k8s_instance_info["k8scluster-uuid"],
+                            kdu_instance=kdu_instance,
+                            primitive_name=initial_config_primitive["name"],
+                            params=primitive_params_, db_dict=db_dict_install,
+                            vca_id=vca_id,
+                        ),
+                        timeout=timeout
+                    )
+
         except Exception as e:
-            if on_exc:
-                db_update[on_exc] = str(e)
-        if db_update:
+            # Prepare update db with error and raise exception
             try:
-                self.update_db_2(item, _id, db_update)
+                self.update_db_2("nsrs", nsr_id, {nsr_db_path + ".detailed-status": str(e)})
+                self.update_db_2("vnfrs", vnfr_data.get("_id"), {"kdur.{}.status".format(kdu_index): "ERROR"})
             except Exception:
+                # ignore to keep original exception
                 pass
+            # reraise original error
+            raise
+
+        return kdu_instance
 
     async def deploy_kdus(self, logging_text, nsr_id, nslcmop_id, db_vnfrs, db_vnfds, task_instantiation_info):
         # Launch kdus if present in the descriptor
 
-        k8scluster_id_2_uuic = {"helm-chart": {}, "juju-bundle": {}}
+        k8scluster_id_2_uuic = {"helm-chart-v3": {}, "helm-chart": {}, "juju-bundle": {}}
 
-        def _get_cluster_id(cluster_id, cluster_type):
+        async def _get_cluster_id(cluster_id, cluster_type):
             nonlocal k8scluster_id_2_uuic
             if cluster_id in k8scluster_id_2_uuic[cluster_type]:
                 return k8scluster_id_2_uuic[cluster_type][cluster_id]
 
+            # check if K8scluster is creating and wait look if previous tasks in process
+            task_name, task_dependency = self.lcm_tasks.lookfor_related("k8scluster", cluster_id)
+            if task_dependency:
+                text = "Waiting for related tasks '{}' on k8scluster {} to be completed".format(task_name, cluster_id)
+                self.logger.debug(logging_text + text)
+                await asyncio.wait(task_dependency, timeout=3600)
+
             db_k8scluster = self.db.get_one("k8sclusters", {"_id": cluster_id}, fail_on_empty=False)
             if not db_k8scluster:
                 raise LcmException("K8s cluster {} cannot be found".format(cluster_id))
+
             k8s_id = deep_get(db_k8scluster, ("_admin", cluster_type, "id"))
             if not k8s_id:
-                raise LcmException("K8s cluster '{}' has not been initilized for '{}'".format(cluster_id, cluster_type))
+                if cluster_type == "helm-chart-v3":
+                    try:
+                        # backward compatibility for existing clusters that have not been initialized for helm v3
+                        k8s_credentials = yaml.safe_dump(db_k8scluster.get("credentials"))
+                        k8s_id, uninstall_sw = await self.k8sclusterhelm3.init_env(k8s_credentials,
+                                                                                   reuse_cluster_uuid=cluster_id)
+                        db_k8scluster_update = {}
+                        db_k8scluster_update["_admin.helm-chart-v3.error_msg"] = None
+                        db_k8scluster_update["_admin.helm-chart-v3.id"] = k8s_id
+                        db_k8scluster_update["_admin.helm-chart-v3.created"] = uninstall_sw
+                        db_k8scluster_update["_admin.helm-chart-v3.operationalState"] = "ENABLED"
+                        self.update_db_2("k8sclusters", cluster_id, db_k8scluster_update)
+                    except Exception as e:
+                        self.logger.error(logging_text + "error initializing helm-v3 cluster: {}".format(str(e)))
+                        raise LcmException("K8s cluster '{}' has not been initialized for '{}'".format(cluster_id,
+                                                                                                       cluster_type))
+                else:
+                    raise LcmException("K8s cluster '{}' has not been initialized for '{}'".
+                                       format(cluster_id, cluster_type))
             k8scluster_id_2_uuic[cluster_type][cluster_id] = k8s_id
             return k8s_id
 
@@ -2161,15 +2410,24 @@ class NsLcm(LcmBase):
 
             index = 0
             updated_cluster_list = []
+            updated_v3_cluster_list = []
 
             for vnfr_data in db_vnfrs.values():
-                for kdur in get_iterable(vnfr_data, "kdur"):
-                    desc_params = self._format_additional_params(kdur.get("additionalParams"))
+                vca_id = self.get_vca_id(vnfr_data, {})
+                for kdu_index, kdur in enumerate(get_iterable(vnfr_data, "kdur")):
+                    # Step 0: Prepare and set parameters
+                    desc_params = parse_yaml_strings(kdur.get("additionalParams"))
                     vnfd_id = vnfr_data.get('vnfd-id')
+                    vnfd_with_id = find_in_list(db_vnfds, lambda vnfd: vnfd["_id"] == vnfd_id)
+                    kdud = next(kdud for kdud in vnfd_with_id["kdu"] if kdud["name"] == kdur["kdu-name"])
                     namespace = kdur.get("k8s-namespace")
                     if kdur.get("helm-chart"):
                         kdumodel = kdur["helm-chart"]
-                        k8sclustertype = "helm-chart"
+                        # Default version: helm3, if helm-version is v2 assign v2
+                        k8sclustertype = "helm-chart-v3"
+                        self.logger.debug("kdur: {}".format(kdur))
+                        if kdur.get("helm-version") and kdur.get("helm-version") == "v2":
+                            k8sclustertype = "helm-chart"
                     elif kdur.get("juju-bundle"):
                         kdumodel = kdur["juju-bundle"]
                         k8sclustertype = "juju-bundle"
@@ -2179,7 +2437,8 @@ class NsLcm(LcmBase):
                                            format(vnfr_data["member-vnf-index-ref"], kdur["kdu-name"]))
                     # check if kdumodel is a file and exists
                     try:
-                        storage = deep_get(db_vnfds.get(vnfd_id), ('_admin', 'storage'))
+                        vnfd_with_id = find_in_list(db_vnfds, lambda vnfd: vnfd["_id"] == vnfd_id)
+                        storage = deep_get(vnfd_with_id, ('_admin', 'storage'))
                         if storage and storage.get('pkg-dir'):  # may be not present if vnfd has not artifacts
                             # path format: /vnfdid/pkkdir/helm-charts|juju-bundles/kdumodel
                             filename = '{}/{}/{}s/{}'.format(storage["folder"], storage["pkg-dir"], k8sclustertype,
@@ -2193,48 +2452,46 @@ class NsLcm(LcmBase):
 
                     k8s_cluster_id = kdur["k8s-cluster"]["id"]
                     step = "Synchronize repos for k8s cluster '{}'".format(k8s_cluster_id)
-                    cluster_uuid = _get_cluster_id(k8s_cluster_id, k8sclustertype)
+                    cluster_uuid = await _get_cluster_id(k8s_cluster_id, k8sclustertype)
 
-                    if k8sclustertype == "helm-chart" and cluster_uuid not in updated_cluster_list:
+                    # Synchronize  repos
+                    if (k8sclustertype == "helm-chart" and cluster_uuid not in updated_cluster_list)\
+                            or (k8sclustertype == "helm-chart-v3" and cluster_uuid not in updated_v3_cluster_list):
                         del_repo_list, added_repo_dict = await asyncio.ensure_future(
-                            self.k8sclusterhelm.synchronize_repos(cluster_uuid=cluster_uuid))
+                            self.k8scluster_map[k8sclustertype].synchronize_repos(cluster_uuid=cluster_uuid))
                         if del_repo_list or added_repo_dict:
-                            unset = {'_admin.helm_charts_added.' + item: None for item in del_repo_list}
-                            updated = {'_admin.helm_charts_added.' +
-                                       item: name for item, name in added_repo_dict.items()}
-                            self.logger.debug(logging_text + "repos synchronized on k8s cluster '{}' to_delete: {}, "
-                                                             "to_add: {}".format(k8s_cluster_id, del_repo_list,
-                                                                                 added_repo_dict))
+                            if k8sclustertype == "helm-chart":
+                                unset = {'_admin.helm_charts_added.' + item: None for item in del_repo_list}
+                                updated = {'_admin.helm_charts_added.' +
+                                           item: name for item, name in added_repo_dict.items()}
+                                updated_cluster_list.append(cluster_uuid)
+                            elif k8sclustertype == "helm-chart-v3":
+                                unset = {'_admin.helm_charts_v3_added.' + item: None for item in del_repo_list}
+                                updated = {'_admin.helm_charts_v3_added.' +
+                                           item: name for item, name in added_repo_dict.items()}
+                                updated_v3_cluster_list.append(cluster_uuid)
+                            self.logger.debug(logging_text + "repos synchronized on k8s cluster "
+                                                             "'{}' to_delete: {}, to_add: {}".
+                                              format(k8s_cluster_id, del_repo_list, added_repo_dict))
                             self.db.set_one("k8sclusters", {"_id": k8s_cluster_id}, updated, unset=unset)
-                        updated_cluster_list.append(cluster_uuid)
 
+                    # Instantiate kdu
                     step = "Instantiating KDU {}.{} in k8s cluster {}".format(vnfr_data["member-vnf-index-ref"],
                                                                               kdur["kdu-name"], k8s_cluster_id)
-
-                    k8s_instace_info = {"kdu-instance": None,
-                                        "k8scluster-uuid": cluster_uuid,
-                                        "k8scluster-type": k8sclustertype,
-                                        "member-vnf-index": vnfr_data["member-vnf-index-ref"],
-                                        "kdu-name": kdur["kdu-name"],
-                                        "kdu-model": kdumodel,
-                                        "namespace": namespace}
+                    k8s_instance_info = {"kdu-instance": None,
+                                         "k8scluster-uuid": cluster_uuid,
+                                         "k8scluster-type": k8sclustertype,
+                                         "member-vnf-index": vnfr_data["member-vnf-index-ref"],
+                                         "kdu-name": kdur["kdu-name"],
+                                         "kdu-model": kdumodel,
+                                         "namespace": namespace}
                     db_path = "_admin.deployed.K8s.{}".format(index)
-                    db_nsr_update[db_path] = k8s_instace_info
+                    db_nsr_update[db_path] = k8s_instance_info
                     self.update_db_2("nsrs", nsr_id, db_nsr_update)
-
-                    db_dict = {"collection": "nsrs",
-                               "filter": {"_id": nsr_id},
-                               "path": db_path}
-
+                    vnfd_with_id = find_in_list(db_vnfds, lambda vnf: vnf["_id"] == vnfd_id)
                     task = asyncio.ensure_future(
-                        self.k8scluster_map[k8sclustertype].install(cluster_uuid=cluster_uuid, kdu_model=kdumodel,
-                                                                    atomic=True, params=desc_params,
-                                                                    db_dict=db_dict, timeout=600,
-                                                                    kdu_name=kdur["kdu-name"], namespace=namespace))
-
-                    task.add_done_callback(partial(self._write_db_callback, item="nsrs", _id=nsr_id,
-                                                   on_done=db_path + ".kdu-instance",
-                                                   on_exc=db_path + ".detailed-status"))
+                        self._install_kdu(nsr_id, db_path, vnfr_data, kdu_index, kdud, vnfd_with_id,
+                                          k8s_instance_info, k8params=desc_params, timeout=600, vca_id=vca_id))
                     self.lcm_tasks.register("ns", nsr_id, nslcmop_id, "instantiate_KDU-{}".format(index), task)
                     task_instantiation_info[task] = "Deploying KDU {}".format(kdur["kdu-name"])
 
@@ -2259,80 +2516,106 @@ class NsLcm(LcmBase):
         # launch instantiate_N2VC in a asyncio task and register task object
         # Look where information of this charm is at database <nsrs>._admin.deployed.VCA
         # if not found, create one entry and update database
-
         # fill db_nsr._admin.deployed.VCA.<index>
-        vca_index = -1
-        for vca_index, vca_deployed in enumerate(db_nsr["_admin"]["deployed"]["VCA"]):
-            if not vca_deployed:
-                continue
-            if vca_deployed.get("member-vnf-index") == member_vnf_index and \
-                    vca_deployed.get("vdu_id") == vdu_id and \
-                    vca_deployed.get("kdu_name") == kdu_name and \
-                    vca_deployed.get("vdu_count_index", 0) == vdu_index:
-                break
-        else:
-            # not found, create one.
-            vca_deployed = {
-                "member-vnf-index": member_vnf_index,
-                "vdu_id": vdu_id,
-                "kdu_name": kdu_name,
-                "vdu_count_index": vdu_index,
-                "operational-status": "init",  # TODO revise
-                "detailed-status": "",  # TODO revise
-                "step": "initial-deploy",   # TODO revise
-                "vnfd_id": vnfd_id,
-                "vdu_name": vdu_name,
-            }
-            vca_index += 1
-
-            # create VCA and configurationStatus in db
-            db_dict = {
-                "_admin.deployed.VCA.{}".format(vca_index): vca_deployed,
-                "configurationStatus.{}".format(vca_index): dict()
-            }
-            self.update_db_2("nsrs", nsr_id, db_dict)
 
-            db_nsr["_admin"]["deployed"]["VCA"].append(vca_deployed)
+        self.logger.debug(logging_text + "_deploy_n2vc vnfd_id={}, vdu_id={}".format(vnfd_id, vdu_id))
+        if "execution-environment-list" in descriptor_config:
+            ee_list = descriptor_config.get("execution-environment-list", [])
+        else:  # other types as script are not supported
+            ee_list = []
+
+        for ee_item in ee_list:
+            self.logger.debug(logging_text + "_deploy_n2vc ee_item juju={}, helm={}".format(ee_item.get('juju'),
+                                                                                            ee_item.get("helm-chart")))
+            ee_descriptor_id = ee_item.get("id")
+            if ee_item.get("juju"):
+                vca_name = ee_item['juju'].get('charm')
+                vca_type = "lxc_proxy_charm" if ee_item['juju'].get('charm') is not None else "native_charm"
+                if ee_item['juju'].get('cloud') == "k8s":
+                    vca_type = "k8s_proxy_charm"
+                elif ee_item['juju'].get('proxy') is False:
+                    vca_type = "native_charm"
+            elif ee_item.get("helm-chart"):
+                vca_name = ee_item['helm-chart']
+                if ee_item.get("helm-version") and ee_item.get("helm-version") == "v2":
+                    vca_type = "helm"
+                else:
+                    vca_type = "helm-v3"
+            else:
+                self.logger.debug(logging_text + "skipping non juju neither charm configuration")
+                continue
 
-        # Launch task
-        task_n2vc = asyncio.ensure_future(
-            self.instantiate_N2VC(
-                logging_text=logging_text,
-                vca_index=vca_index,
-                nsi_id=nsi_id,
-                db_nsr=db_nsr,
-                db_vnfr=db_vnfr,
-                vdu_id=vdu_id,
-                kdu_name=kdu_name,
-                vdu_index=vdu_index,
-                deploy_params=deploy_params,
-                config_descriptor=descriptor_config,
-                base_folder=base_folder,
-                nslcmop_id=nslcmop_id,
-                stage=stage
+            vca_index = -1
+            for vca_index, vca_deployed in enumerate(db_nsr["_admin"]["deployed"]["VCA"]):
+                if not vca_deployed:
+                    continue
+                if vca_deployed.get("member-vnf-index") == member_vnf_index and \
+                        vca_deployed.get("vdu_id") == vdu_id and \
+                        vca_deployed.get("kdu_name") == kdu_name and \
+                        vca_deployed.get("vdu_count_index", 0) == vdu_index and \
+                        vca_deployed.get("ee_descriptor_id") == ee_descriptor_id:
+                    break
+            else:
+                # not found, create one.
+                target = "ns" if not member_vnf_index else "vnf/{}".format(member_vnf_index)
+                if vdu_id:
+                    target += "/vdu/{}/{}".format(vdu_id, vdu_index or 0)
+                elif kdu_name:
+                    target += "/kdu/{}".format(kdu_name)
+                vca_deployed = {
+                    "target_element": target,
+                    # ^ target_element will replace member-vnf-index, kdu_name, vdu_id ... in a single string
+                    "member-vnf-index": member_vnf_index,
+                    "vdu_id": vdu_id,
+                    "kdu_name": kdu_name,
+                    "vdu_count_index": vdu_index,
+                    "operational-status": "init",  # TODO revise
+                    "detailed-status": "",  # TODO revise
+                    "step": "initial-deploy",   # TODO revise
+                    "vnfd_id": vnfd_id,
+                    "vdu_name": vdu_name,
+                    "type": vca_type,
+                    "ee_descriptor_id": ee_descriptor_id
+                }
+                vca_index += 1
+
+                # create VCA and configurationStatus in db
+                db_dict = {
+                    "_admin.deployed.VCA.{}".format(vca_index): vca_deployed,
+                    "configurationStatus.{}".format(vca_index): dict()
+                }
+                self.update_db_2("nsrs", nsr_id, db_dict)
+
+                db_nsr["_admin"]["deployed"]["VCA"].append(vca_deployed)
+
+            self.logger.debug("N2VC > NSR_ID > {}".format(nsr_id))
+            self.logger.debug("N2VC > DB_NSR > {}".format(db_nsr))
+            self.logger.debug("N2VC > VCA_DEPLOYED > {}".format(vca_deployed))
+
+            # Launch task
+            task_n2vc = asyncio.ensure_future(
+                self.instantiate_N2VC(
+                    logging_text=logging_text,
+                    vca_index=vca_index,
+                    nsi_id=nsi_id,
+                    db_nsr=db_nsr,
+                    db_vnfr=db_vnfr,
+                    vdu_id=vdu_id,
+                    kdu_name=kdu_name,
+                    vdu_index=vdu_index,
+                    deploy_params=deploy_params,
+                    config_descriptor=descriptor_config,
+                    base_folder=base_folder,
+                    nslcmop_id=nslcmop_id,
+                    stage=stage,
+                    vca_type=vca_type,
+                    vca_name=vca_name,
+                    ee_config_descriptor=ee_item
+                )
             )
-        )
-        self.lcm_tasks.register("ns", nsr_id, nslcmop_id, "instantiate_N2VC-{}".format(vca_index), task_n2vc)
-        task_instantiation_info[task_n2vc] = self.task_name_deploy_vca + " {}.{}".format(
-            member_vnf_index or "", vdu_id or "")
-
-    # Check if this VNFD has a configured terminate action
-    def _has_terminate_config_primitive(self, vnfd):
-        vnf_config = vnfd.get("vnf-configuration")
-        if vnf_config and vnf_config.get("terminate-config-primitive"):
-            return True
-        else:
-            return False
-
-    @staticmethod
-    def _get_terminate_config_primitive_seq_list(vnfd):
-        """ Get a numerically sorted list of the sequences for this VNFD's terminate action """
-        # No need to check for existing primitive twice, already done before
-        vnf_config = vnfd.get("vnf-configuration")
-        seq_list = vnf_config.get("terminate-config-primitive")
-        # Get all 'seq' tags in seq_list, order sequences numerically, ascending.
-        seq_list_sorted = sorted(seq_list, key=lambda x: int(x['seq']))
-        return seq_list_sorted
+            self.lcm_tasks.register("ns", nsr_id, nslcmop_id, "instantiate_N2VC-{}".format(vca_index), task_n2vc)
+            task_instantiation_info[task_n2vc] = self.task_name_deploy_vca + " {}.{}".format(
+                member_vnf_index or "", vdu_id or "")
 
     @staticmethod
     def _create_nslcmop(nsr_id, operation, params):
@@ -2435,7 +2718,7 @@ class NsLcm(LcmBase):
     # 'detailed-status' : status message
     # 'operationType': may be any type, in the case of scaling: 'PRE-SCALE' | 'POST-SCALE'
     # Status and operation type are currently only used for 'scale', but NOT for 'terminate' sub-operations.
-    def _add_suboperation(self, db_nslcmop, vnf_index, vdu_id, vdu_count_index, vdu_name, primitive, 
+    def _add_suboperation(self, db_nslcmop, vnf_index, vdu_id, vdu_count_index, vdu_name, primitive,
                           mapped_primitive_params, operationState=None, detailed_status=None, operationType=None,
                           RO_nsr_id=None, RO_scaling_info=None):
         if not db_nslcmop:
@@ -2541,7 +2824,18 @@ class NsLcm(LcmBase):
             if vca["member-vnf-index"] == vnf_index and vca["vdu_id"] == vdu_id:
                 return vca["ee_id"]
 
-    async def destroy_N2VC(self, logging_text, db_nslcmop, vca_deployed, config_descriptor, vca_index, destroy_ee=True):
+    async def destroy_N2VC(
+        self,
+        logging_text,
+        db_nslcmop,
+        vca_deployed,
+        config_descriptor,
+        vca_index,
+        destroy_ee=True,
+        exec_primitives=True,
+        scaling_in=False,
+        vca_id: str = None,
+    ):
         """
         Execute the terminate primitives and destroy the execution environment (if destroy_ee=False
         :param logging_text:
@@ -2550,59 +2844,84 @@ class NsLcm(LcmBase):
         :param config_descriptor: Configuration descriptor of the NSD, VNFD, VNFD.vdu or VNFD.kdu
         :param vca_index: index in the database _admin.deployed.VCA
         :param destroy_ee: False to do not destroy, because it will be destroyed all of then at once
+        :param exec_primitives: False to do not execute terminate primitives, because the config is not completed or has
+                            not executed properly
+        :param scaling_in: True destroys the application, False destroys the model
         :return: None or exception
         """
+
+        self.logger.debug(
+            logging_text + " vca_index: {}, vca_deployed: {}, config_descriptor: {}, destroy_ee: {}".format(
+                vca_index, vca_deployed, config_descriptor, destroy_ee
+            )
+        )
+
+        vca_type = vca_deployed.get("type", "lxc_proxy_charm")
+
         # execute terminate_primitives
-        terminate_primitives = config_descriptor.get("terminate-config-primitive")
-        vdu_id = vca_deployed.get("vdu_id")
-        vdu_count_index = vca_deployed.get("vdu_count_index")
-        vdu_name = vca_deployed.get("vdu_name")
-        vnf_index = vca_deployed.get("member-vnf-index")
-        if terminate_primitives and vca_deployed.get("needed_terminate"):
-            # Get all 'seq' tags in seq_list, order sequences numerically, ascending.
-            terminate_primitives = sorted(terminate_primitives, key=lambda x: int(x['seq']))
-            for seq in terminate_primitives:
-                # For each sequence in list, get primitive and call _ns_execute_primitive()
-                step = "Calling terminate action for vnf_member_index={} primitive={}".format(
-                    vnf_index, seq.get("name"))
-                self.logger.debug(logging_text + step)
-                # Create the primitive for each sequence, i.e. "primitive": "touch"
-                primitive = seq.get('name')
-                mapped_primitive_params = self._get_terminate_primitive_params(seq, vnf_index)
-                # The following 3 parameters are currently set to None for 'terminate':
-                # vdu_id, vdu_count_index, vdu_name
-
-                # Add sub-operation
-                self._add_suboperation(db_nslcmop,
-                                       vnf_index,
-                                       vdu_id,
-                                       vdu_count_index,
-                                       vdu_name,
-                                       primitive,
-                                       mapped_primitive_params)
-                # Sub-operations: Call _ns_execute_primitive() instead of action()
-                try:
-                    result, result_detail = await self._ns_execute_primitive(vca_deployed["ee_id"], primitive,
-                                                                             mapped_primitive_params)
-                except LcmException:
-                    # this happens when VCA is not deployed. In this case it is not needed to terminate
-                    continue
-                result_ok = ['COMPLETED', 'PARTIALLY_COMPLETED']
-                if result not in result_ok:
-                    raise LcmException("terminate_primitive {}  for vnf_member_index={} fails with "
-                                       "error {}".format(seq.get("name"), vnf_index, result_detail))
-            # set that this VCA do not need terminated
-            db_update_entry = "_admin.deployed.VCA.{}.needed_terminate".format(vca_index)
-            self.update_db_2("nsrs", db_nslcmop["nsInstanceId"], {db_update_entry: False})
+        if exec_primitives:
+            terminate_primitives = get_ee_sorted_terminate_config_primitive_list(
+                config_descriptor.get("terminate-config-primitive"), vca_deployed.get("ee_descriptor_id"))
+            vdu_id = vca_deployed.get("vdu_id")
+            vdu_count_index = vca_deployed.get("vdu_count_index")
+            vdu_name = vca_deployed.get("vdu_name")
+            vnf_index = vca_deployed.get("member-vnf-index")
+            if terminate_primitives and vca_deployed.get("needed_terminate"):
+                for seq in terminate_primitives:
+                    # For each sequence in list, get primitive and call _ns_execute_primitive()
+                    step = "Calling terminate action for vnf_member_index={} primitive={}".format(
+                        vnf_index, seq.get("name"))
+                    self.logger.debug(logging_text + step)
+                    # Create the primitive for each sequence, i.e. "primitive": "touch"
+                    primitive = seq.get('name')
+                    mapped_primitive_params = self._get_terminate_primitive_params(seq, vnf_index)
+
+                    # Add sub-operation
+                    self._add_suboperation(db_nslcmop,
+                                           vnf_index,
+                                           vdu_id,
+                                           vdu_count_index,
+                                           vdu_name,
+                                           primitive,
+                                           mapped_primitive_params)
+                    # Sub-operations: Call _ns_execute_primitive() instead of action()
+                    try:
+                        result, result_detail = await self._ns_execute_primitive(
+                            vca_deployed["ee_id"], primitive,
+                            mapped_primitive_params,
+                            vca_type=vca_type,
+                            vca_id=vca_id,
+                        )
+                    except LcmException:
+                        # this happens when VCA is not deployed. In this case it is not needed to terminate
+                        continue
+                    result_ok = ['COMPLETED', 'PARTIALLY_COMPLETED']
+                    if result not in result_ok:
+                        raise LcmException("terminate_primitive {}  for vnf_member_index={} fails with "
+                                           "error {}".format(seq.get("name"), vnf_index, result_detail))
+                # set that this VCA do not need terminated
+                db_update_entry = "_admin.deployed.VCA.{}.needed_terminate".format(vca_index)
+                self.update_db_2("nsrs", db_nslcmop["nsInstanceId"], {db_update_entry: False})
+
+        if vca_deployed.get("prometheus_jobs") and self.prometheus:
+            await self.prometheus.update(remove_jobs=vca_deployed["prometheus_jobs"])
 
         if destroy_ee:
-            await self.n2vc.delete_execution_environment(vca_deployed["ee_id"])
+            await self.vca_map[vca_type].delete_execution_environment(
+                vca_deployed["ee_id"],
+                scaling_in=scaling_in,
+                vca_id=vca_id,
+            )
 
-    async def _delete_all_N2VC(self, db_nsr: dict):
+    async def _delete_all_N2VC(self, db_nsr: dict, vca_id: str = None):
         self._write_all_config_status(db_nsr=db_nsr, status='TERMINATING')
         namespace = "." + db_nsr["_id"]
         try:
-            await self.n2vc.delete_namespace(namespace=namespace, total_timeout=self.timeout_charm_delete)
+            await self.n2vc.delete_namespace(
+                namespace=namespace,
+                total_timeout=self.timeout_charm_delete,
+                vca_id=vca_id,
+            )
         except N2VCNotFound:  # already deleted. Skip
             pass
         self._write_all_config_status(db_nsr=db_nsr, status='DELETED')
@@ -2802,6 +3121,7 @@ class NsLcm(LcmBase):
 
             stage[1] = "Getting vnf descriptors from db."
             db_vnfrs_list = self.db.get_list("vnfrs", {"nsr-id-ref": nsr_id})
+            db_vnfrs_dict = {db_vnfr["member-vnf-index-ref"]: db_vnfr for db_vnfr in db_vnfrs_list}
             db_vnfds_from_id = {}
             db_vnfds_from_member_index = {}
             # Loop over VNFRs
@@ -2814,42 +3134,63 @@ class NsLcm(LcmBase):
 
             # Destroy individual execution environments when there are terminating primitives.
             # Rest of EE will be deleted at once
-            if not operation_params.get("skip_terminate_primitives"):
-                stage[0] = "Stage 2/3 execute terminating primitives."
-                stage[1] = "Looking execution environment that needs terminate."
-                self.logger.debug(logging_text + stage[1])
-                for vca_index, vca in enumerate(get_iterable(nsr_deployed, "VCA")):
-                    config_descriptor = None
-                    if not vca or not vca.get("ee_id") or not vca.get("needed_terminate"):
-                        continue
-                    if not vca.get("member-vnf-index"):
-                        # ns
-                        config_descriptor = db_nsr.get("ns-configuration")
-                    elif vca.get("vdu_id"):
-                        db_vnfd = db_vnfds_from_member_index[vca["member-vnf-index"]]
-                        vdud = next((vdu for vdu in db_vnfd.get("vdu", ()) if vdu["id"] == vca.get("vdu_id")), None)
-                        if vdud:
-                            config_descriptor = vdud.get("vdu-configuration")
-                    elif vca.get("kdu_name"):
-                        db_vnfd = db_vnfds_from_member_index[vca["member-vnf-index"]]
-                        kdud = next((kdu for kdu in db_vnfd.get("kdu", ()) if kdu["name"] == vca.get("kdu_name")), None)
-                        if kdud:
-                            config_descriptor = kdud.get("kdu-configuration")
-                    else:
-                        config_descriptor = db_vnfds_from_member_index[vca["member-vnf-index"]].get("vnf-configuration")
-                    task = asyncio.ensure_future(self.destroy_N2VC(logging_text, db_nslcmop, vca, config_descriptor,
-                                                                   vca_index, False))
-                    tasks_dict_info[task] = "Terminating VCA {}".format(vca.get("ee_id"))
+            # TODO - check before calling _destroy_N2VC
+            # if not operation_params.get("skip_terminate_primitives"):#
+            # or not vca.get("needed_terminate"):
+            stage[0] = "Stage 2/3 execute terminating primitives."
+            self.logger.debug(logging_text + stage[0])
+            stage[1] = "Looking execution environment that needs terminate."
+            self.logger.debug(logging_text + stage[1])
 
-                # wait for pending tasks of terminate primitives
-                if tasks_dict_info:
-                    self.logger.debug(logging_text + 'Waiting for terminate primitive pending tasks...')
-                    error_list = await self._wait_for_tasks(logging_text, tasks_dict_info,
-                                                            min(self.timeout_charm_delete, timeout_ns_terminate),
-                                                            stage, nslcmop_id)
-                    if error_list:
-                        return   # raise LcmException("; ".join(error_list))
-                    tasks_dict_info.clear()
+            for vca_index, vca in enumerate(get_iterable(nsr_deployed, "VCA")):
+                config_descriptor = None
+
+                vca_id = self.get_vca_id(db_vnfrs_dict[vca["member-vnf-index"]], db_nsr)
+                if not vca or not vca.get("ee_id"):
+                    continue
+                if not vca.get("member-vnf-index"):
+                    # ns
+                    config_descriptor = db_nsr.get("ns-configuration")
+                elif vca.get("vdu_id"):
+                    db_vnfd = db_vnfds_from_member_index[vca["member-vnf-index"]]
+                    config_descriptor = get_configuration(db_vnfd, vca.get("vdu_id"))
+                elif vca.get("kdu_name"):
+                    db_vnfd = db_vnfds_from_member_index[vca["member-vnf-index"]]
+                    config_descriptor = get_configuration(db_vnfd, vca.get("kdu_name"))
+                else:
+                    db_vnfd = db_vnfds_from_member_index[vca["member-vnf-index"]]
+                    config_descriptor = get_configuration(db_vnfd, db_vnfd["id"])
+                vca_type = vca.get("type")
+                exec_terminate_primitives = (not operation_params.get("skip_terminate_primitives") and
+                                             vca.get("needed_terminate"))
+                # For helm we must destroy_ee. Also for native_charm, as juju_model cannot be deleted if there are
+                # pending native charms
+                destroy_ee = True if vca_type in ("helm", "helm-v3", "native_charm") else False
+                # self.logger.debug(logging_text + "vca_index: {}, ee_id: {}, vca_type: {} destroy_ee: {}".format(
+                #     vca_index, vca.get("ee_id"), vca_type, destroy_ee))
+                task = asyncio.ensure_future(
+                    self.destroy_N2VC(
+                        logging_text,
+                        db_nslcmop,
+                        vca,
+                        config_descriptor,
+                        vca_index,
+                        destroy_ee,
+                        exec_terminate_primitives,
+                        vca_id=vca_id,
+                    )
+                )
+                tasks_dict_info[task] = "Terminating VCA {}".format(vca.get("ee_id"))
+
+            # wait for pending tasks of terminate primitives
+            if tasks_dict_info:
+                self.logger.debug(logging_text + 'Waiting for tasks {}'.format(list(tasks_dict_info.keys())))
+                error_list = await self._wait_for_tasks(logging_text, tasks_dict_info,
+                                                        min(self.timeout_charm_delete, timeout_ns_terminate),
+                                                        stage, nslcmop_id)
+                tasks_dict_info.clear()
+                if error_list:
+                    return   # raise LcmException("; ".join(error_list))
 
             # remove All execution environments at once
             stage[0] = "Stage 3/3 delete all."
@@ -2857,8 +3198,13 @@ class NsLcm(LcmBase):
             if nsr_deployed.get("VCA"):
                 stage[1] = "Deleting all execution environments."
                 self.logger.debug(logging_text + stage[1])
-                task_delete_ee = asyncio.ensure_future(asyncio.wait_for(self._delete_all_N2VC(db_nsr=db_nsr),
-                                                                        timeout=self.timeout_charm_delete))
+                vca_id = self.get_vca_id({}, db_nsr)
+                task_delete_ee = asyncio.ensure_future(
+                    asyncio.wait_for(
+                        self._delete_all_N2VC(db_nsr=db_nsr, vca_id=vca_id),
+                        timeout=self.timeout_charm_delete
+                    )
+                )
                 # task_delete_ee = asyncio.ensure_future(self.n2vc.delete_namespace(namespace="." + nsr_id))
                 tasks_dict_info[task_delete_ee] = "Terminating all VCA"
 
@@ -2871,10 +3217,15 @@ class NsLcm(LcmBase):
                     continue
                 kdu_instance = kdu.get("kdu-instance")
                 if kdu.get("k8scluster-type") in self.k8scluster_map:
+                    # TODO: Uninstall kdu instances taking into account they could be deployed in different VIMs
+                    vca_id = self.get_vca_id({}, db_nsr)
                     task_delete_kdu_instance = asyncio.ensure_future(
                         self.k8scluster_map[kdu["k8scluster-type"]].uninstall(
                             cluster_uuid=kdu.get("k8scluster-uuid"),
-                            kdu_instance=kdu_instance))
+                            kdu_instance=kdu_instance,
+                            vca_id=vca_id,
+                        )
+                    )
                 else:
                     self.logger.error(logging_text + "Unknown k8s deployment type {}".
                                       format(kdu.get("k8scluster-type")))
@@ -2883,8 +3234,12 @@ class NsLcm(LcmBase):
 
             # remove from RO
             stage[1] = "Deleting ns from VIM."
-            task_delete_ro = asyncio.ensure_future(
-                self._terminate_RO(logging_text, nsr_deployed, nsr_id, nslcmop_id, stage))
+            if self.ng_ro:
+                task_delete_ro = asyncio.ensure_future(
+                    self._terminate_ng_ro(logging_text, nsr_deployed, nsr_id, nslcmop_id, stage))
+            else:
+                task_delete_ro = asyncio.ensure_future(
+                    self._terminate_RO(logging_text, nsr_deployed, nsr_id, nslcmop_id, stage))
             tasks_dict_info[task_delete_ro] = "Removing deployment from VIM"
 
             # rest of staff will be done at finally
@@ -2918,8 +3273,8 @@ class NsLcm(LcmBase):
             if error_list:
                 error_detail = "; ".join(error_list)
                 # self.logger.error(logging_text + error_detail)
-                error_description_nslcmop = 'Stage: {}. Detail: {}'.format(stage[0], error_detail)
-                error_description_nsr = 'Operation: TERMINATING.{}, Stage {}.'.format(nslcmop_id, stage[0])
+                error_description_nslcmop = '{} Detail: {}'.format(stage[0], error_detail)
+                error_description_nsr = 'Operation: TERMINATING.{}, {}.'.format(nslcmop_id, stage[0])
 
                 db_nsr_update["operational-status"] = "failed"
                 db_nsr_update["detailed-status"] = error_description_nsr + " Detail: " + error_detail
@@ -2953,6 +3308,12 @@ class NsLcm(LcmBase):
                 operation_state=nslcmop_operation_state,
                 other_update=db_nslcmop_update,
             )
+            if ns_state == "NOT_INSTANTIATED":
+                try:
+                    self.db.set_list("vnfrs", {"nsr-id-ref": nsr_id}, {"_admin.nsState": "NOT_INSTANTIATED"})
+                except DbException as e:
+                    self.logger.warn(logging_text + 'Error writing VNFR status for nsr-id-ref: {} -> {}'.
+                                     format(nsr_id, e))
             if operation_params:
                 autoremove = operation_params.get("autoremove", False)
             if nslcmop_operation_state:
@@ -3000,11 +3361,11 @@ class NsLcm(LcmBase):
                     error_list.append(created_tasks_info[task])
                     error_detail_list.append(new_error)
                     if isinstance(exc, (str, DbException, N2VCException, ROclient.ROClientException, LcmException,
-                                        K8sException)):
+                                        K8sException, NgRoException)):
                         self.logger.error(logging_text + new_error)
                     else:
                         exc_traceback = "".join(traceback.format_exception(None, exc, exc.__traceback__))
-                        self.logger.error(logging_text + created_tasks_info[task] + exc_traceback)
+                        self.logger.error(logging_text + created_tasks_info[task] + " " + exc_traceback)
                 else:
                     self.logger.debug(logging_text + created_tasks_info[task] + ": Done")
             stage[1] = "{}/{}.".format(num_done, num_tasks)
@@ -3048,10 +3409,18 @@ class NsLcm(LcmBase):
                                    format(param_name, primitive_desc["name"]))
 
             if isinstance(calculated_params[param_name], (dict, list, tuple)):
-                calculated_params[param_name] = yaml.safe_dump(calculated_params[param_name], default_flow_style=True,
-                                                               width=256)
+                calculated_params[param_name] = yaml.safe_dump(calculated_params[param_name],
+                                                               default_flow_style=True, width=256)
             elif isinstance(calculated_params[param_name], str) and calculated_params[param_name].startswith("!!yaml "):
                 calculated_params[param_name] = calculated_params[param_name][7:]
+            if parameter.get("data-type") == "INTEGER":
+                try:
+                    calculated_params[param_name] = int(calculated_params[param_name])
+                except ValueError:  # error converting string to int
+                    raise LcmException(
+                        "Parameter {} of primitive {} must be integer".format(param_name, primitive_desc["name"]))
+            elif parameter.get("data-type") == "BOOLEAN":
+                calculated_params[param_name] = not ((str(calculated_params[param_name])).lower() == 'false')
 
         # add always ns_config_info if primitive name is config
         if primitive_desc["name"] == "config":
@@ -3059,7 +3428,8 @@ class NsLcm(LcmBase):
                 calculated_params["ns_config_info"] = instantiation_params["ns_config_info"]
         return calculated_params
 
-    def _look_for_deployed_vca(self, deployed_vca, member_vnf_index, vdu_id, vdu_count_index, kdu_name=None):
+    def _look_for_deployed_vca(self, deployed_vca, member_vnf_index, vdu_id, vdu_count_index, kdu_name=None,
+                               ee_descriptor_id=None):
         # find vca_deployed record for this action. Raise LcmException if not found or there is not any id.
         for vca in deployed_vca:
             if not vca:
@@ -3070,35 +3440,53 @@ class NsLcm(LcmBase):
                 continue
             if kdu_name and kdu_name != vca["kdu_name"]:
                 continue
+            if ee_descriptor_id and ee_descriptor_id != vca["ee_descriptor_id"]:
+                continue
             break
         else:
             # vca_deployed not found
-            raise LcmException("charm for member_vnf_index={} vdu_id={} kdu_name={} vdu_count_index={} is not "
-                               "deployed".format(member_vnf_index, vdu_id, kdu_name, vdu_count_index))
-
+            raise LcmException("charm for member_vnf_index={} vdu_id={}.{} kdu_name={} execution-environment-list.id={}"
+                               " is not deployed".format(member_vnf_index, vdu_id, vdu_count_index, kdu_name,
+                                                         ee_descriptor_id))
         # get ee_id
         ee_id = vca.get("ee_id")
+        vca_type = vca.get("type", "lxc_proxy_charm")  # default value for backward compatibility - proxy charm
         if not ee_id:
             raise LcmException("charm for member_vnf_index={} vdu_id={} kdu_name={} vdu_count_index={} has not "
                                "execution environment"
                                .format(member_vnf_index, vdu_id, kdu_name, vdu_count_index))
-        return ee_id
-
-    async def _ns_execute_primitive(self, ee_id, primitive, primitive_params, retries=0,
-                                    retries_interval=30, timeout=None) -> (str, str):
+        return ee_id, vca_type
+
+    async def _ns_execute_primitive(
+        self,
+        ee_id,
+        primitive,
+        primitive_params,
+        retries=0,
+        retries_interval=30,
+        timeout=None,
+        vca_type=None,
+        db_dict=None,
+        vca_id: str = None,
+    ) -> (str, str):
         try:
             if primitive == "config":
                 primitive_params = {"params": primitive_params}
 
+            vca_type = vca_type or "lxc_proxy_charm"
+
             while retries >= 0:
                 try:
                     output = await asyncio.wait_for(
-                        self.n2vc.exec_primitive(
+                        self.vca_map[vca_type].exec_primitive(
                             ee_id=ee_id,
                             primitive_name=primitive,
                             params_dict=primitive_params,
                             progress_timeout=self.timeout_progress_primitive,
-                            total_timeout=self.timeout_primitive),
+                            total_timeout=self.timeout_primitive,
+                            db_dict=db_dict,
+                            vca_id=vca_id,
+                        ),
                         timeout=timeout or self.timeout_primitive)
                     # execution was OK
                     break
@@ -3122,8 +3510,31 @@ class NsLcm(LcmBase):
         except Exception as e:
             return 'FAIL', 'Error executing action {}: {}'.format(primitive, e)
 
-    async def action(self, nsr_id, nslcmop_id):
+    async def vca_status_refresh(self, nsr_id, nslcmop_id):
+        """
+        Updating the vca_status with latest juju information in nsrs record
+        :param: nsr_id: Id of the nsr
+        :param: nslcmop_id: Id of the nslcmop
+        :return: None
+        """
+
+        self.logger.debug("Task ns={} action={} Enter".format(nsr_id, nslcmop_id))
+        db_nsr = self.db.get_one("nsrs", {"_id": nsr_id})
+        vca_id = self.get_vca_id({}, db_nsr)
+        if db_nsr['_admin']['deployed']['K8s']:
+            for k8s_index, k8s in enumerate(db_nsr['_admin']['deployed']['K8s']):
+                cluster_uuid, kdu_instance = k8s["k8scluster-uuid"], k8s["kdu-instance"]
+                await self._on_update_k8s_db(cluster_uuid, kdu_instance, filter={'_id': nsr_id}, vca_id=vca_id)
+        else:
+            for vca_index, _ in enumerate(db_nsr['_admin']['deployed']['VCA']):
+                table, filter = "nsrs", {"_id": nsr_id}
+                path = "_admin.deployed.VCA.{}.".format(vca_index)
+                await self._on_update_n2vc_db(table, filter, path, {})
 
+        self.logger.debug("Task ns={} action={} Exit".format(nsr_id, nslcmop_id))
+        self.lcm_tasks.remove("ns", nsr_id, nslcmop_id, "ns_vca_status_refresh")
+
+    async def action(self, nsr_id, nslcmop_id):
         # Try to lock HA task here
         task_is_locked_by_me = self.lcm_tasks.lock_HA('ns', 'nslcmops', nslcmop_id)
         if not task_is_locked_by_me:
@@ -3173,6 +3584,7 @@ class NsLcm(LcmBase):
                 step = "Getting nsd from database"
                 db_nsd = self.db.get_one("nsds", {"_id": db_nsr["nsd-id"]})
 
+            vca_id = self.get_vca_id(db_vnfr, db_nsr)
             # for backward compatibility
             if nsr_deployed and isinstance(nsr_deployed.get("VCA"), dict):
                 nsr_deployed["VCA"] = list(nsr_deployed["VCA"].values())
@@ -3180,55 +3592,54 @@ class NsLcm(LcmBase):
                 self.update_db_2("nsrs", nsr_id, db_nsr_update)
 
             # look for primitive
-            config_primitive_desc = None
+            config_primitive_desc = descriptor_configuration = None
             if vdu_id:
-                for vdu in get_iterable(db_vnfd, "vdu"):
-                    if vdu_id == vdu["id"]:
-                        for config_primitive in deep_get(vdu, ("vdu-configuration", "config-primitive"), ()):
-                            if config_primitive["name"] == primitive:
-                                config_primitive_desc = config_primitive
-                                break
-                        break
+                descriptor_configuration = get_configuration(db_vnfd, vdu_id)
             elif kdu_name:
-                for kdu in get_iterable(db_vnfd, "kdu"):
-                    if kdu_name == kdu["name"]:
-                        for config_primitive in deep_get(kdu, ("kdu-configuration", "config-primitive"), ()):
-                            if config_primitive["name"] == primitive:
-                                config_primitive_desc = config_primitive
-                                break
-                        break
+                descriptor_configuration = get_configuration(db_vnfd, kdu_name)
             elif vnf_index:
-                for config_primitive in deep_get(db_vnfd, ("vnf-configuration", "config-primitive"), ()):
-                    if config_primitive["name"] == primitive:
-                        config_primitive_desc = config_primitive
-                        break
+                descriptor_configuration = get_configuration(db_vnfd, db_vnfd["id"])
             else:
-                for config_primitive in deep_get(db_nsd, ("ns-configuration", "config-primitive"), ()):
+                descriptor_configuration = db_nsd.get("ns-configuration")
+
+            if descriptor_configuration and descriptor_configuration.get("config-primitive"):
+                for config_primitive in descriptor_configuration["config-primitive"]:
                     if config_primitive["name"] == primitive:
                         config_primitive_desc = config_primitive
                         break
 
-            if not config_primitive_desc and not (kdu_name and primitive in ("upgrade", "rollback", "status")):
-                raise LcmException("Primitive {} not found at [ns|vnf|vdu]-configuration:config-primitive ".
-                                   format(primitive))
+            if not config_primitive_desc:
+                if not (kdu_name and primitive in ("upgrade", "rollback", "status")):
+                    raise LcmException("Primitive {} not found at [ns|vnf|vdu]-configuration:config-primitive ".
+                                       format(primitive))
+                primitive_name = primitive
+                ee_descriptor_id = None
+            else:
+                primitive_name = config_primitive_desc.get("execution-environment-primitive", primitive)
+                ee_descriptor_id = config_primitive_desc.get("execution-environment-ref")
 
             if vnf_index:
                 if vdu_id:
                     vdur = next((x for x in db_vnfr["vdur"] if x["vdu-id-ref"] == vdu_id), None)
-                    desc_params = self._format_additional_params(vdur.get("additionalParams"))
+                    desc_params = parse_yaml_strings(vdur.get("additionalParams"))
                 elif kdu_name:
                     kdur = next((x for x in db_vnfr["kdur"] if x["kdu-name"] == kdu_name), None)
-                    desc_params = self._format_additional_params(kdur.get("additionalParams"))
+                    desc_params = parse_yaml_strings(kdur.get("additionalParams"))
                 else:
-                    desc_params = self._format_additional_params(db_vnfr.get("additionalParamsForVnf"))
+                    desc_params = parse_yaml_strings(db_vnfr.get("additionalParamsForVnf"))
             else:
-                desc_params = self._format_additional_params(db_nsr.get("additionalParamsForNs"))
-
-            if kdu_name:
-                kdu_action = True if not deep_get(kdu, ("kdu-configuration", "juju")) else False
+                desc_params = parse_yaml_strings(db_nsr.get("additionalParamsForNs"))
+            if kdu_name and get_configuration(db_vnfd, kdu_name):
+                kdu_configuration = get_configuration(db_vnfd, kdu_name)
+                actions = set()
+                for primitive in kdu_configuration.get("initial-config-primitive", []):
+                    actions.add(primitive["name"])
+                for primitive in kdu_configuration.get("config-primitive", []):
+                    actions.add(primitive["name"])
+                kdu_action = True if primitive_name in actions else False
 
             # TODO check if ns is in a proper status
-            if kdu_name and (primitive in ("upgrade", "rollback", "status") or kdu_action):
+            if kdu_name and (primitive_name in ("upgrade", "rollback", "status") or kdu_action):
                 # kdur and desc_params already set from before
                 if primitive_params:
                     desc_params.update(primitive_params)
@@ -3246,9 +3657,9 @@ class NsLcm(LcmBase):
                 db_dict = {"collection": "nsrs",
                            "filter": {"_id": nsr_id},
                            "path": "_admin.deployed.K8s.{}".format(index)}
-                self.logger.debug(logging_text + "Exec k8s {} on {}.{}".format(primitive, vnf_index, kdu_name))
-                step = "Executing kdu {}".format(primitive)
-                if primitive == "upgrade":
+                self.logger.debug(logging_text + "Exec k8s {} on {}.{}".format(primitive_name, vnf_index, kdu_name))
+                step = "Executing kdu {}".format(primitive_name)
+                if primitive_name == "upgrade":
                     if desc_params.get("kdu_model"):
                         kdu_model = desc_params.get("kdu_model")
                         del desc_params["kdu_model"]
@@ -3267,19 +3678,22 @@ class NsLcm(LcmBase):
                             timeout=timeout_ns_action),
                         timeout=timeout_ns_action + 10)
                     self.logger.debug(logging_text + " Upgrade of kdu {} done".format(detailed_status))
-                elif primitive == "rollback":
+                elif primitive_name == "rollback":
                     detailed_status = await asyncio.wait_for(
                         self.k8scluster_map[kdu["k8scluster-type"]].rollback(
                             cluster_uuid=kdu.get("k8scluster-uuid"),
                             kdu_instance=kdu.get("kdu-instance"),
                             db_dict=db_dict),
                         timeout=timeout_ns_action)
-                elif primitive == "status":
+                elif primitive_name == "status":
                     detailed_status = await asyncio.wait_for(
                         self.k8scluster_map[kdu["k8scluster-type"]].status_kdu(
                             cluster_uuid=kdu.get("k8scluster-uuid"),
-                            kdu_instance=kdu.get("kdu-instance")),
-                        timeout=timeout_ns_action)
+                            kdu_instance=kdu.get("kdu-instance"),
+                            vca_id=vca_id,
+                        ),
+                        timeout=timeout_ns_action
+                    )
                 else:
                     kdu_instance = kdu.get("kdu-instance") or "{}-{}".format(kdu["kdu-name"], nsr_id)
                     params = self._map_primitive_params(config_primitive_desc, primitive_params, desc_params)
@@ -3288,10 +3702,13 @@ class NsLcm(LcmBase):
                         self.k8scluster_map[kdu["k8scluster-type"]].exec_primitive(
                             cluster_uuid=kdu.get("k8scluster-uuid"),
                             kdu_instance=kdu_instance,
-                            primitive_name=primitive,
+                            primitive_name=primitive_name,
                             params=params, db_dict=db_dict,
-                            timeout=timeout_ns_action),
-                        timeout=timeout_ns_action)
+                            timeout=timeout_ns_action,
+                            vca_id=vca_id,
+                        ),
+                        timeout=timeout_ns_action
+                    )
 
                 if detailed_status:
                     nslcmop_operation_state = 'COMPLETED'
@@ -3299,14 +3716,24 @@ class NsLcm(LcmBase):
                     detailed_status = ''
                     nslcmop_operation_state = 'FAILED'
             else:
+                ee_id, vca_type = self._look_for_deployed_vca(nsr_deployed["VCA"], member_vnf_index=vnf_index,
+                                                              vdu_id=vdu_id, vdu_count_index=vdu_count_index,
+                                                              ee_descriptor_id=ee_descriptor_id)
+                for vca_index, vca_deployed in enumerate(db_nsr['_admin']['deployed']['VCA']):
+                    if vca_deployed.get("member-vnf-index") == vnf_index:
+                        db_dict = {"collection": "nsrs",
+                                   "filter": {"_id": nsr_id},
+                                   "path": "_admin.deployed.VCA.{}.".format(vca_index)}
+                        break
                 nslcmop_operation_state, detailed_status = await self._ns_execute_primitive(
-                    self._look_for_deployed_vca(nsr_deployed["VCA"],
-                                                member_vnf_index=vnf_index,
-                                                vdu_id=vdu_id,
-                                                vdu_count_index=vdu_count_index),
-                    primitive=primitive,
+                    ee_id,
+                    primitive=primitive_name,
                     primitive_params=self._map_primitive_params(config_primitive_desc, primitive_params, desc_params),
-                    timeout=timeout_ns_action)
+                    timeout=timeout_ns_action,
+                    vca_type=vca_type,
+                    db_dict=db_dict,
+                    vca_id=vca_id,
+                )
 
             db_nslcmop_update["detailed-status"] = detailed_status
             error_description_nslcmop = detailed_status if nslcmop_operation_state == "FAILED" else ""
@@ -3342,13 +3769,8 @@ class NsLcm(LcmBase):
                     other_update=db_nsr_update
                 )
 
-            self._write_op_status(
-                op_id=nslcmop_id,
-                stage="",
-                error_message=error_description_nslcmop,
-                operation_state=nslcmop_operation_state,
-                other_update=db_nslcmop_update,
-            )
+            self._write_op_status(op_id=nslcmop_id, stage="", error_message=error_description_nslcmop,
+                                  operation_state=nslcmop_operation_state, other_update=db_nslcmop_update)
 
             if nslcmop_operation_state:
                 try:
@@ -3362,48 +3784,43 @@ class NsLcm(LcmBase):
             return nslcmop_operation_state, detailed_status
 
     async def scale(self, nsr_id, nslcmop_id):
-
         # Try to lock HA task here
         task_is_locked_by_me = self.lcm_tasks.lock_HA('ns', 'nslcmops', nslcmop_id)
         if not task_is_locked_by_me:
             return
 
         logging_text = "Task ns={} scale={} ".format(nsr_id, nslcmop_id)
+        stage = ['', '', '']
+        tasks_dict_info = {}
+        # ^ stage, step, VIM progress
         self.logger.debug(logging_text + "Enter")
         # get all needed from database
         db_nsr = None
-        db_nslcmop = None
         db_nslcmop_update = {}
-        nslcmop_operation_state = None
         db_nsr_update = {}
         exc = None
         # in case of error, indicates what part of scale was failed to put nsr at error status
         scale_process = None
         old_operational_status = ""
         old_config_status = ""
-        vnfr_scaled = False
+        nsi_id = None
         try:
             # wait for any previous tasks in process
             step = "Waiting for previous operations to terminate"
             await self.lcm_tasks.waitfor_related_HA('ns', 'nslcmops', nslcmop_id)
-
-            self._write_ns_status(
-                nsr_id=nsr_id,
-                ns_state=None,
-                current_operation="SCALING",
-                current_operation_id=nslcmop_id
-            )
+            self._write_ns_status(nsr_id=nsr_id, ns_state=None,
+                                  current_operation="SCALING", current_operation_id=nslcmop_id)
 
             step = "Getting nslcmop from database"
             self.logger.debug(step + " after having waited for previous tasks to be completed")
             db_nslcmop = self.db.get_one("nslcmops", {"_id": nslcmop_id})
+
             step = "Getting nsr from database"
             db_nsr = self.db.get_one("nsrs", {"_id": nsr_id})
-
             old_operational_status = db_nsr["operational-status"]
             old_config_status = db_nsr["config-status"]
+
             step = "Parsing scaling parameters"
-            # self.logger.debug(step)
             db_nsr_update["operational-status"] = "scaling"
             self.update_db_2("nsrs", nsr_id, db_nsr_update)
             nsr_deployed = db_nsr["_admin"].get("deployed")
@@ -3416,12 +3833,9 @@ class NsLcm(LcmBase):
             # vdu_name = db_nslcmop["operationParams"].get("vdu_name")
             #######
 
-            RO_nsr_id = nsr_deployed["RO"]["nsr_id"]
             vnf_index = db_nslcmop["operationParams"]["scaleVnfData"]["scaleByStepData"]["member-vnf-index"]
             scaling_group = db_nslcmop["operationParams"]["scaleVnfData"]["scaleByStepData"]["scaling-group-descriptor"]
             scaling_type = db_nslcmop["operationParams"]["scaleVnfData"]["scaleVnfType"]
-            # scaling_policy = db_nslcmop["operationParams"]["scaleVnfData"]["scaleByStepData"].get("scaling-policy")
-
             # for backward compatibility
             if nsr_deployed and isinstance(nsr_deployed.get("VCA"), dict):
                 nsr_deployed["VCA"] = list(nsr_deployed["VCA"].values())
@@ -3430,25 +3844,27 @@ class NsLcm(LcmBase):
 
             step = "Getting vnfr from database"
             db_vnfr = self.db.get_one("vnfrs", {"member-vnf-index-ref": vnf_index, "nsr-id-ref": nsr_id})
+
+            vca_id = self.get_vca_id(db_vnfr, db_nsr)
+
             step = "Getting vnfd from database"
             db_vnfd = self.db.get_one("vnfds", {"_id": db_vnfr["vnfd-id"]})
 
+            base_folder = db_vnfd["_admin"]["storage"]
+
             step = "Getting scaling-group-descriptor"
-            for scaling_descriptor in db_vnfd["scaling-group-descriptor"]:
-                if scaling_descriptor["name"] == scaling_group:
-                    break
-            else:
+            scaling_descriptor = find_in_list(
+                get_scaling_aspect(
+                    db_vnfd
+                ),
+                lambda scale_desc: scale_desc["name"] == scaling_group
+            )
+            if not scaling_descriptor:
                 raise LcmException("input parameter 'scaleByStepData':'scaling-group-descriptor':'{}' is not present "
                                    "at vnfd:scaling-group-descriptor".format(scaling_group))
 
-            # cooldown_time = 0
-            # for scaling_policy_descriptor in scaling_descriptor.get("scaling-policy", ()):
-            #     cooldown_time = scaling_policy_descriptor.get("cooldown-time", 0)
-            #     if scaling_policy and scaling_policy == scaling_policy_descriptor.get("name"):
-            #         break
-
-            # TODO check if ns is in a proper status
             step = "Sending scale order to VIM"
+            # TODO check if ns is in a proper status
             nb_scale_op = 0
             if not db_nsr["_admin"].get("scaling-group"):
                 self.update_db_2("nsrs", nsr_id, {"_admin.scaling-group": [{"name": scaling_group, "nb-scale-op": 0}]})
@@ -3462,49 +3878,125 @@ class NsLcm(LcmBase):
                     admin_scale_index += 1
                     db_nsr_update["_admin.scaling-group.{}.name".format(admin_scale_index)] = scaling_group
             RO_scaling_info = []
+            VCA_scaling_info = []
             vdu_scaling_info = {"scaling_group_name": scaling_group, "vdu": []}
             if scaling_type == "SCALE_OUT":
+                if "aspect-delta-details" not in scaling_descriptor:
+                    raise LcmException(
+                        "Aspect delta details not fount in scaling descriptor {}".format(
+                            scaling_descriptor["name"]
+                        )
+                    )
                 # count if max-instance-count is reached
-                max_instance_count = scaling_descriptor.get("max-instance-count", 10)
-                # self.logger.debug("MAX_INSTANCE_COUNT is {}".format(max_instance_count))
-                if nb_scale_op >= max_instance_count:
-                    raise LcmException("reached the limit of {} (max-instance-count) "
-                                       "scaling-out operations for the "
-                                       "scaling-group-descriptor '{}'".format(nb_scale_op, scaling_group))
-
-                nb_scale_op += 1
+                deltas = scaling_descriptor.get("aspect-delta-details")["deltas"]
+
                 vdu_scaling_info["scaling_direction"] = "OUT"
                 vdu_scaling_info["vdu-create"] = {}
-                for vdu_scale_info in scaling_descriptor["vdu"]:
-                    RO_scaling_info.append({"osm_vdu_id": vdu_scale_info["vdu-id-ref"], "member-vnf-index": vnf_index,
-                                            "type": "create", "count": vdu_scale_info.get("count", 1)})
-                    vdu_scaling_info["vdu-create"][vdu_scale_info["vdu-id-ref"]] = vdu_scale_info.get("count", 1)
+                for delta in deltas:
+                    for vdu_delta in delta["vdu-delta"]:
+                        vdud = get_vdu(db_vnfd, vdu_delta["id"])
+                        vdu_index = get_vdur_index(db_vnfr, vdu_delta)
+                        cloud_init_text = self._get_vdu_cloud_init_content(vdud, db_vnfd)
+                        if cloud_init_text:
+                            additional_params = self._get_vdu_additional_params(db_vnfr, vdud["id"]) or {}
+                        cloud_init_list = []
+
+                        vdu_profile = get_vdu_profile(db_vnfd, vdu_delta["id"])
+                        max_instance_count = 10
+                        if vdu_profile and "max-number-of-instances" in vdu_profile:
+                            max_instance_count = vdu_profile.get("max-number-of-instances", 10)
+                        
+                        default_instance_num = get_number_of_instances(db_vnfd, vdud["id"])
+
+                        nb_scale_op += vdu_delta.get("number-of-instances", 1)
+
+                        if nb_scale_op + default_instance_num > max_instance_count:
+                            raise LcmException(
+                                "reached the limit of {} (max-instance-count) "
+                                "scaling-out operations for the "
+                                "scaling-group-descriptor '{}'".format(nb_scale_op, scaling_group)
+                            )
+                        for x in range(vdu_delta.get("number-of-instances", 1)):
+                            if cloud_init_text:
+                                # TODO Information of its own ip is not available because db_vnfr is not updated.
+                                additional_params["OSM"] = get_osm_params(
+                                    db_vnfr,
+                                    vdu_delta["id"],
+                                    vdu_index + x
+                                )
+                                cloud_init_list.append(
+                                    self._parse_cloud_init(
+                                        cloud_init_text,
+                                        additional_params,
+                                        db_vnfd["id"],
+                                        vdud["id"]
+                                    )
+                                )
+                                VCA_scaling_info.append(
+                                    {
+                                        "osm_vdu_id": vdu_delta["id"],
+                                        "member-vnf-index": vnf_index,
+                                        "type": "create",
+                                        "vdu_index": vdu_index + x
+                                    }
+                                )
+                        RO_scaling_info.append(
+                            {
+                                "osm_vdu_id": vdu_delta["id"],
+                                "member-vnf-index": vnf_index,
+                                "type": "create",
+                                "count": vdu_delta.get("number-of-instances", 1)
+                            }
+                        )
+                        if cloud_init_list:
+                            RO_scaling_info[-1]["cloud_init"] = cloud_init_list
+                        vdu_scaling_info["vdu-create"][vdu_delta["id"]] = vdu_delta.get("number-of-instances", 1)
 
             elif scaling_type == "SCALE_IN":
-                # count if min-instance-count is reached
-                min_instance_count = 0
                 if "min-instance-count" in scaling_descriptor and scaling_descriptor["min-instance-count"] is not None:
                     min_instance_count = int(scaling_descriptor["min-instance-count"])
-                if nb_scale_op <= min_instance_count:
-                    raise LcmException("reached the limit of {} (min-instance-count) scaling-in operations for the "
-                                       "scaling-group-descriptor '{}'".format(nb_scale_op, scaling_group))
-                nb_scale_op -= 1
+                
                 vdu_scaling_info["scaling_direction"] = "IN"
                 vdu_scaling_info["vdu-delete"] = {}
-                for vdu_scale_info in scaling_descriptor["vdu"]:
-                    RO_scaling_info.append({"osm_vdu_id": vdu_scale_info["vdu-id-ref"], "member-vnf-index": vnf_index,
-                                            "type": "delete", "count": vdu_scale_info.get("count", 1)})
-                    vdu_scaling_info["vdu-delete"][vdu_scale_info["vdu-id-ref"]] = vdu_scale_info.get("count", 1)
+                deltas = scaling_descriptor.get("aspect-delta-details")["deltas"]
+                for delta in deltas:
+                    for vdu_delta in delta["vdu-delta"]:
+                        vdu_index = get_vdur_index(db_vnfr, vdu_delta)
+                        min_instance_count = 0
+                        vdu_profile = get_vdu_profile(db_vnfd, vdu_delta["id"])
+                        if vdu_profile and "min-number-of-instances" in vdu_profile:
+                            min_instance_count = vdu_profile["min-number-of-instances"]
+
+                        default_instance_num = get_number_of_instances(db_vnfd, vdu_delta["id"])
+
+                        nb_scale_op -= vdu_delta.get("number-of-instances", 1)
+                        if nb_scale_op + default_instance_num < min_instance_count:
+                            raise LcmException(
+                                "reached the limit of {} (min-instance-count) scaling-in operations for the "
+                                "scaling-group-descriptor '{}'".format(nb_scale_op, scaling_group)
+                            )
+                        RO_scaling_info.append({"osm_vdu_id": vdu_delta["id"], "member-vnf-index": vnf_index,
+                                                "type": "delete", "count": vdu_delta.get("number-of-instances", 1),
+                                                "vdu_index": vdu_index - 1})
+                        for x in range(vdu_delta.get("number-of-instances", 1)):
+                            VCA_scaling_info.append(
+                                {
+                                    "osm_vdu_id": vdu_delta["id"],
+                                    "member-vnf-index": vnf_index,
+                                    "type": "delete",
+                                    "vdu_index": vdu_index - 1 - x
+                                }
+                            )
+                        vdu_scaling_info["vdu-delete"][vdu_delta["id"]] = vdu_delta.get("number-of-instances", 1)
 
             # update VDU_SCALING_INFO with the VDUs to delete ip_addresses
-            vdu_create = vdu_scaling_info.get("vdu-create")
             vdu_delete = copy(vdu_scaling_info.get("vdu-delete"))
             if vdu_scaling_info["scaling_direction"] == "IN":
                 for vdur in reversed(db_vnfr["vdur"]):
                     if vdu_delete.get(vdur["vdu-id-ref"]):
                         vdu_delete[vdur["vdu-id-ref"]] -= 1
                         vdu_scaling_info["vdu"].append({
-                            "name": vdur["name"],
+                            "name": vdur.get("name") or vdur.get("vdu-name"),
                             "vdu_id": vdur["vdu-id-ref"],
                             "interface": []
                         })
@@ -3514,7 +4006,7 @@ class NsLcm(LcmBase):
                                 "ip_address": interface["ip-address"],
                                 "mac_address": interface.get("mac-address"),
                             })
-                vdu_delete = vdu_scaling_info.pop("vdu-delete")
+                vdu_delete = vdu_scaling_info.pop("vdu-delete")
 
             # PRE-SCALE BEGIN
             step = "Executing pre-scale vnf-config-primitive"
@@ -3527,14 +4019,16 @@ class NsLcm(LcmBase):
                             "executing pre-scale scaling-config-action '{}'".format(vnf_config_primitive)
 
                         # look for primitive
-                        for config_primitive in db_vnfd.get("vnf-configuration", {}).get("config-primitive", ()):
+                        for config_primitive in (get_configuration(
+                            db_vnfd, db_vnfd["id"]
+                        ) or {}).get("config-primitive", ()):
                             if config_primitive["name"] == vnf_config_primitive:
                                 break
                         else:
                             raise LcmException(
                                 "Invalid vnfd descriptor at scaling-group-descriptor[name='{}']:scaling-config-action"
                                 "[vnf-config-primitive-name-ref='{}'] does not match any vnf-configuration:config-"
-                                "primitive".format(scaling_group, config_primitive))
+                                "primitive".format(scaling_group, vnf_config_primitive))
 
                         vnfr_params = {"VDU_SCALE_INFO": vdu_scaling_info}
                         if db_vnfr.get("additionalParamsForVnf"):
@@ -3568,13 +4062,21 @@ class NsLcm(LcmBase):
                                 primitive_params = op.get('primitive_params')
                                 self.logger.debug(logging_text + "vnf_config_primitive={} Sub-operation retry".
                                                   format(vnf_config_primitive))
-                            # Execute the primitive, either with new (first-time) or registered (retry) args
+                            # Execute the primitive, either with new (first-time) or registered (reintent) args
+                            ee_descriptor_id = config_primitive.get("execution-environment-ref")
+                            primitive_name = config_primitive.get("execution-environment-primitive",
+                                                                  vnf_config_primitive)
+                            ee_id, vca_type = self._look_for_deployed_vca(nsr_deployed["VCA"],
+                                                                          member_vnf_index=vnf_index,
+                                                                          vdu_id=None,
+                                                                          vdu_count_index=None,
+                                                                          ee_descriptor_id=ee_descriptor_id)
                             result, result_detail = await self._ns_execute_primitive(
-                                self._look_for_deployed_vca(nsr_deployed["VCA"],
-                                                            member_vnf_index=vnf_index,
-                                                            vdu_id=None,
-                                                            vdu_count_index=None),
-                                vnf_config_primitive, primitive_params)
+                                ee_id, primitive_name,
+                                primitive_params,
+                                vca_type=vca_type,
+                                vca_id=vca_id,
+                            )
                             self.logger.debug(logging_text + "vnf_config_primitive={} Done with result {} {}".format(
                                 vnf_config_primitive, result, result_detail))
                             # Update operationState = COMPLETED | FAILED
@@ -3587,127 +4089,171 @@ class NsLcm(LcmBase):
                         scale_process = None
             # PRE-SCALE END
 
+            db_nsr_update["_admin.scaling-group.{}.nb-scale-op".format(admin_scale_index)] = nb_scale_op
+            db_nsr_update["_admin.scaling-group.{}.time".format(admin_scale_index)] = time()
+
+            # SCALE-IN VCA - BEGIN
+            if VCA_scaling_info:
+                step = db_nslcmop_update["detailed-status"] = \
+                    "Deleting the execution environments"
+                scale_process = "VCA"
+                for vdu_info in VCA_scaling_info:
+                    if vdu_info["type"] == "delete":
+                        member_vnf_index = str(vdu_info["member-vnf-index"])
+                        self.logger.debug(logging_text + "vdu info: {}".format(vdu_info))
+                        vdu_id = vdu_info["osm_vdu_id"]
+                        vdu_index = int(vdu_info["vdu_index"])
+                        stage[1] = "Scaling member_vnf_index={}, vdu_id={}, vdu_index={} ".format(
+                            member_vnf_index, vdu_id, vdu_index)
+                        stage[2] = step = "Scaling in VCA"
+                        self._write_op_status(
+                            op_id=nslcmop_id,
+                            stage=stage
+                        )
+                        vca_update = db_nsr["_admin"]["deployed"]["VCA"]
+                        config_update = db_nsr["configurationStatus"]
+                        for vca_index, vca in enumerate(vca_update):
+                            if (vca or vca.get("ee_id")) and vca["member-vnf-index"] == member_vnf_index and \
+                                    vca["vdu_count_index"] == vdu_index:
+                                if vca.get("vdu_id"):
+                                    config_descriptor = get_configuration(db_vnfd, vca.get("vdu_id"))
+                                elif vca.get("kdu_name"):
+                                    config_descriptor = get_configuration(db_vnfd, vca.get("kdu_name"))
+                                else:
+                                    config_descriptor = get_configuration(db_vnfd, db_vnfd["id"])
+                                operation_params = db_nslcmop.get("operationParams") or {}
+                                exec_terminate_primitives = (not operation_params.get("skip_terminate_primitives") and
+                                                             vca.get("needed_terminate"))
+                                task = asyncio.ensure_future(
+                                    asyncio.wait_for(
+                                        self.destroy_N2VC(
+                                            logging_text,
+                                            db_nslcmop,
+                                            vca,
+                                            config_descriptor,
+                                            vca_index,
+                                            destroy_ee=True,
+                                            exec_primitives=exec_terminate_primitives,
+                                            scaling_in=True,
+                                            vca_id=vca_id,
+                                        ),
+                                        timeout=self.timeout_charm_delete
+                                    )
+                                )
+                                tasks_dict_info[task] = "Terminating VCA {}".format(vca.get("ee_id"))
+                                del vca_update[vca_index]
+                                del config_update[vca_index]
+                        # wait for pending tasks of terminate primitives
+                        if tasks_dict_info:
+                            self.logger.debug(logging_text +
+                                              'Waiting for tasks {}'.format(list(tasks_dict_info.keys())))
+                            error_list = await self._wait_for_tasks(logging_text, tasks_dict_info,
+                                                                    min(self.timeout_charm_delete,
+                                                                        self.timeout_ns_terminate),
+                                                                    stage, nslcmop_id)
+                            tasks_dict_info.clear()
+                            if error_list:
+                                raise LcmException("; ".join(error_list))
+
+                        db_vca_and_config_update = {
+                            "_admin.deployed.VCA": vca_update,
+                            "configurationStatus": config_update
+                        }
+                        self.update_db_2("nsrs", db_nsr["_id"], db_vca_and_config_update)
+            scale_process = None
+            # SCALE-IN VCA - END
+
             # SCALE RO - BEGIN
-            # Should this block be skipped if 'RO_nsr_id' == None ?
-            # if (RO_nsr_id and RO_scaling_info):
             if RO_scaling_info:
                 scale_process = "RO"
-                # Scale RO retry check: Check if this sub-operation has been executed before
-                op_index = self._check_or_add_scale_suboperation(
-                    db_nslcmop, vnf_index, None, None, 'SCALE-RO', RO_nsr_id, RO_scaling_info)
-                if op_index == self.SUBOPERATION_STATUS_SKIP:
-                    # Skip sub-operation
-                    result = 'COMPLETED'
-                    result_detail = 'Done'
-                    self.logger.debug(logging_text + "Skipped sub-operation RO, result {} {}".format(
-                        result, result_detail))
-                else:
-                    if op_index == self.SUBOPERATION_STATUS_NEW:
-                        # New sub-operation: Get index of this sub-operation
-                        op_index = len(db_nslcmop.get('_admin', {}).get('operations')) - 1
-                        self.logger.debug(logging_text + "New sub-operation RO")
-                    else:
-                        # retry:  Get registered params for this existing sub-operation
-                        op = db_nslcmop.get('_admin', {}).get('operations', [])[op_index]
-                        RO_nsr_id = op.get('RO_nsr_id')
-                        RO_scaling_info = op.get('RO_scaling_info')
-                        self.logger.debug(logging_text + "Sub-operation RO retry for primitive {}".format(
-                            vnf_config_primitive))
-
-                    RO_desc = await self.RO.create_action("ns", RO_nsr_id, {"vdu-scaling": RO_scaling_info})
-                    db_nsr_update["_admin.scaling-group.{}.nb-scale-op".format(admin_scale_index)] = nb_scale_op
-                    db_nsr_update["_admin.scaling-group.{}.time".format(admin_scale_index)] = time()
-                    # wait until ready
-                    RO_nslcmop_id = RO_desc["instance_action_id"]
-                    db_nslcmop_update["_admin.deploy.RO"] = RO_nslcmop_id
-
-                    RO_task_done = False
-                    step = detailed_status = "Waiting RO_task_id={} to complete the scale action.".format(RO_nslcmop_id)
-                    detailed_status_old = None
-                    self.logger.debug(logging_text + step)
-
-                    deployment_timeout = 1 * 3600   # One hour
-                    while deployment_timeout > 0:
-                        if not RO_task_done:
-                            desc = await self.RO.show("ns", item_id_name=RO_nsr_id, extra_item="action",
-                                                      extra_item_id=RO_nslcmop_id)
-
-                            # deploymentStatus
-                            self._on_update_ro_db(nsrs_id=nsr_id, ro_descriptor=desc)
-
-                            ns_status, ns_status_info = self.RO.check_action_status(desc)
-                            if ns_status == "ERROR":
-                                raise ROclient.ROClientException(ns_status_info)
-                            elif ns_status == "BUILD":
-                                detailed_status = step + "; {}".format(ns_status_info)
-                            elif ns_status == "ACTIVE":
-                                RO_task_done = True
-                                step = detailed_status = "Waiting ns ready at RO. RO_id={}".format(RO_nsr_id)
-                                self.logger.debug(logging_text + step)
-                            else:
-                                assert False, "ROclient.check_action_status returns unknown {}".format(ns_status)
-                        else:
-
-                            if ns_status == "ERROR":
-                                raise ROclient.ROClientException(ns_status_info)
-                            elif ns_status == "BUILD":
-                                detailed_status = step + "; {}".format(ns_status_info)
-                            elif ns_status == "ACTIVE":
-                                step = detailed_status = \
-                                    "Waiting for management IP address reported by the VIM. Updating VNFRs"
-                                if not vnfr_scaled:
-                                    self.scale_vnfr(db_vnfr, vdu_create=vdu_create, vdu_delete=vdu_delete)
-                                    vnfr_scaled = True
-                                try:
-                                    desc = await self.RO.show("ns", RO_nsr_id)
-
-                                    # deploymentStatus
-                                    self._on_update_ro_db(nsrs_id=nsr_id, ro_descriptor=desc)
-
-                                    # nsr_deployed["nsr_ip"] = RO.get_ns_vnf_info(desc)
-                                    self.ns_update_vnfr({db_vnfr["member-vnf-index-ref"]: db_vnfr}, desc)
-                                    break
-                                except LcmExceptionNoMgmtIP:
-                                    pass
-                            else:
-                                assert False, "ROclient.check_ns_status returns unknown {}".format(ns_status)
-                        if detailed_status != detailed_status_old:
-                            self._update_suboperation_status(
-                                db_nslcmop, op_index, 'COMPLETED', detailed_status)
-                            detailed_status_old = db_nslcmop_update["detailed-status"] = detailed_status
-                            self.update_db_2("nslcmops", nslcmop_id, db_nslcmop_update)
-
-                        await asyncio.sleep(5, loop=self.loop)
-                        deployment_timeout -= 5
-                    if deployment_timeout <= 0:
-                        self._update_suboperation_status(
-                            db_nslcmop, nslcmop_id, op_index, 'FAILED', "Timeout when waiting for ns to get ready")
-                        raise ROclient.ROClientException("Timeout waiting ns to be ready")
-
-                    # update VDU_SCALING_INFO with the obtained ip_addresses
-                    if vdu_scaling_info["scaling_direction"] == "OUT":
-                        for vdur in reversed(db_vnfr["vdur"]):
-                            if vdu_scaling_info["vdu-create"].get(vdur["vdu-id-ref"]):
-                                vdu_scaling_info["vdu-create"][vdur["vdu-id-ref"]] -= 1
-                                vdu_scaling_info["vdu"].append({
-                                    "name": vdur["name"],
-                                    "vdu_id": vdur["vdu-id-ref"],
-                                    "interface": []
-                                })
-                                for interface in vdur["interfaces"]:
-                                    vdu_scaling_info["vdu"][-1]["interface"].append({
-                                        "name": interface["name"],
-                                        "ip_address": interface["ip-address"],
-                                        "mac_address": interface.get("mac-address"),
-                                    })
-                        del vdu_scaling_info["vdu-create"]
-
-                    self._update_suboperation_status(db_nslcmop, op_index, 'COMPLETED', 'Done')
-            # SCALE RO - END
+                if self.ro_config.get("ng"):
+                    await self._scale_ng_ro(logging_text, db_nsr, db_nslcmop, db_vnfr, vdu_scaling_info, stage)
+            vdu_scaling_info.pop("vdu-create", None)
+            vdu_scaling_info.pop("vdu-delete", None)
 
             scale_process = None
             if db_nsr_update:
                 self.update_db_2("nsrs", nsr_id, db_nsr_update)
+            # SCALE RO - END
+
+            # SCALE-UP VCA - BEGIN
+            if VCA_scaling_info:
+                step = db_nslcmop_update["detailed-status"] = \
+                    "Creating new execution environments"
+                scale_process = "VCA"
+                for vdu_info in VCA_scaling_info:
+                    if vdu_info["type"] == "create":
+                        member_vnf_index = str(vdu_info["member-vnf-index"])
+                        self.logger.debug(logging_text + "vdu info: {}".format(vdu_info))
+                        vnfd_id = db_vnfr["vnfd-ref"]
+                        vdu_index = int(vdu_info["vdu_index"])
+                        deploy_params = {"OSM": get_osm_params(db_vnfr)}
+                        if db_vnfr.get("additionalParamsForVnf"):
+                            deploy_params.update(parse_yaml_strings(db_vnfr["additionalParamsForVnf"].copy()))
+                        descriptor_config = get_configuration(db_vnfd, db_vnfd["id"])
+                        if descriptor_config:
+                            vdu_id = None
+                            vdu_name = None
+                            kdu_name = None
+                            self._deploy_n2vc(
+                                logging_text=logging_text + "member_vnf_index={} ".format(member_vnf_index),
+                                db_nsr=db_nsr,
+                                db_vnfr=db_vnfr,
+                                nslcmop_id=nslcmop_id,
+                                nsr_id=nsr_id,
+                                nsi_id=nsi_id,
+                                vnfd_id=vnfd_id,
+                                vdu_id=vdu_id,
+                                kdu_name=kdu_name,
+                                member_vnf_index=member_vnf_index,
+                                vdu_index=vdu_index,
+                                vdu_name=vdu_name,
+                                deploy_params=deploy_params,
+                                descriptor_config=descriptor_config,
+                                base_folder=base_folder,
+                                task_instantiation_info=tasks_dict_info,
+                                stage=stage
+                            )
+                        vdu_id = vdu_info["osm_vdu_id"]
+                        vdur = find_in_list(db_vnfr["vdur"], lambda vdu: vdu["vdu-id-ref"] == vdu_id)
+                        descriptor_config = get_configuration(db_vnfd, vdu_id)
+                        if vdur.get("additionalParams"):
+                            deploy_params_vdu = parse_yaml_strings(vdur["additionalParams"])
+                        else:
+                            deploy_params_vdu = deploy_params
+                        deploy_params_vdu["OSM"] = get_osm_params(db_vnfr, vdu_id, vdu_count_index=vdu_index)
+                        if descriptor_config:
+                            vdu_name = None
+                            kdu_name = None
+                            stage[1] = "Scaling member_vnf_index={}, vdu_id={}, vdu_index={} ".format(
+                                member_vnf_index, vdu_id, vdu_index)
+                            stage[2] = step = "Scaling out VCA"
+                            self._write_op_status(
+                                op_id=nslcmop_id,
+                                stage=stage
+                            )
+                            self._deploy_n2vc(
+                                logging_text=logging_text + "member_vnf_index={}, vdu_id={}, vdu_index={} ".format(
+                                    member_vnf_index, vdu_id, vdu_index),
+                                db_nsr=db_nsr,
+                                db_vnfr=db_vnfr,
+                                nslcmop_id=nslcmop_id,
+                                nsr_id=nsr_id,
+                                nsi_id=nsi_id,
+                                vnfd_id=vnfd_id,
+                                vdu_id=vdu_id,
+                                kdu_name=kdu_name,
+                                member_vnf_index=member_vnf_index,
+                                vdu_index=vdu_index,
+                                vdu_name=vdu_name,
+                                deploy_params=deploy_params_vdu,
+                                descriptor_config=descriptor_config,
+                                base_folder=base_folder,
+                                task_instantiation_info=tasks_dict_info,
+                                stage=stage
+                            )
+            # SCALE-UP VCA - END
+            scale_process = None
 
             # POST-SCALE BEGIN
             # execute primitive service POST-SCALING
@@ -3725,14 +4271,16 @@ class NsLcm(LcmBase):
                             vnfr_params.update(db_vnfr["additionalParamsForVnf"])
 
                         # look for primitive
-                        for config_primitive in db_vnfd.get("vnf-configuration", {}).get("config-primitive", ()):
+                        for config_primitive in (
+                            get_configuration(db_vnfd, db_vnfd["id"]) or {}
+                        ).get("config-primitive", ()):
                             if config_primitive["name"] == vnf_config_primitive:
                                 break
                         else:
-                            raise LcmException("Invalid vnfd descriptor at scaling-group-descriptor[name='{}']:"
-                                               "scaling-config-action[vnf-config-primitive-name-ref='{}'] does not "
-                                               "match any vnf-configuration:config-primitive".format(scaling_group,
-                                                                                                     config_primitive))
+                            raise LcmException(
+                                "Invalid vnfd descriptor at scaling-group-descriptor[name='{}']:scaling-config-"
+                                "action[vnf-config-primitive-name-ref='{}'] does not match any vnf-configuration:"
+                                "config-primitive".format(scaling_group, vnf_config_primitive))
                         scale_process = "VCA"
                         db_nsr_update["config-status"] = "configuring post-scaling"
                         primitive_params = self._map_primitive_params(config_primitive, {}, vnfr_params)
@@ -3761,13 +4309,22 @@ class NsLcm(LcmBase):
                                 primitive_params = op.get('primitive_params')
                                 self.logger.debug(logging_text + "vnf_config_primitive={} Sub-operation retry".
                                                   format(vnf_config_primitive))
-                            # Execute the primitive, either with new (first-time) or registered (retry) args
+                            # Execute the primitive, either with new (first-time) or registered (reintent) args
+                            ee_descriptor_id = config_primitive.get("execution-environment-ref")
+                            primitive_name = config_primitive.get("execution-environment-primitive",
+                                                                  vnf_config_primitive)
+                            ee_id, vca_type = self._look_for_deployed_vca(nsr_deployed["VCA"],
+                                                                          member_vnf_index=vnf_index,
+                                                                          vdu_id=None,
+                                                                          vdu_count_index=None,
+                                                                          ee_descriptor_id=ee_descriptor_id)
                             result, result_detail = await self._ns_execute_primitive(
-                                self._look_for_deployed_vca(nsr_deployed["VCA"],
-                                                            member_vnf_index=vnf_index,
-                                                            vdu_id=None,
-                                                            vdu_count_index=None),
-                                vnf_config_primitive, primitive_params)
+                                ee_id,
+                                primitive_name,
+                                primitive_params,
+                                vca_type=vca_type,
+                                vca_id=vca_id,
+                            )
                             self.logger.debug(logging_text + "vnf_config_primitive={} Done with result {} {}".format(
                                 vnf_config_primitive, result, result_detail))
                             # Update operationState = COMPLETED | FAILED
@@ -3785,7 +4342,7 @@ class NsLcm(LcmBase):
                 else old_operational_status
             db_nsr_update["config-status"] = old_config_status
             return
-        except (ROclient.ROClientException, DbException, LcmException) as e:
+        except (ROclient.ROClientException, DbException, LcmException, NgRoException) as e:
             self.logger.error(logging_text + "Exit Exception {}".format(e))
             exc = e
         except asyncio.CancelledError:
@@ -3795,12 +4352,12 @@ class NsLcm(LcmBase):
             exc = traceback.format_exc()
             self.logger.critical(logging_text + "Exit Exception {} {}".format(type(e).__name__, e), exc_info=True)
         finally:
-            self._write_ns_status(
-                nsr_id=nsr_id,
-                ns_state=None,
-                current_operation="IDLE",
-                current_operation_id=None
-            )
+            self._write_ns_status(nsr_id=nsr_id, ns_state=None, current_operation="IDLE", current_operation_id=None)
+            if tasks_dict_info:
+                stage[1] = "Waiting for instantiate pending tasks."
+                self.logger.debug(logging_text + stage[1])
+                exc = await self._wait_for_tasks(logging_text, tasks_dict_info, self.timeout_ns_deploy,
+                                                 stage, nslcmop_id, nsr_id=nsr_id)
             if exc:
                 db_nslcmop_update["detailed-status"] = error_description_nslcmop = "FAILED {}: {}".format(step, exc)
                 nslcmop_operation_state = "FAILED"
@@ -3820,31 +4377,100 @@ class NsLcm(LcmBase):
                 nslcmop_operation_state = "COMPLETED"
                 db_nslcmop_update["detailed-status"] = "Done"
 
-            self._write_op_status(
-                op_id=nslcmop_id,
-                stage="",
-                error_message=error_description_nslcmop,
-                operation_state=nslcmop_operation_state,
-                other_update=db_nslcmop_update,
-            )
+            self._write_op_status(op_id=nslcmop_id, stage="", error_message=error_description_nslcmop,
+                                  operation_state=nslcmop_operation_state, other_update=db_nslcmop_update)
             if db_nsr:
-                self._write_ns_status(
-                    nsr_id=nsr_id,
-                    ns_state=None,
-                    current_operation="IDLE",
-                    current_operation_id=None,
-                    other_update=db_nsr_update
-                )
+                self._write_ns_status(nsr_id=nsr_id, ns_state=None, current_operation="IDLE",
+                                      current_operation_id=None, other_update=db_nsr_update)
 
             if nslcmop_operation_state:
                 try:
-                    await self.msg.aiowrite("ns", "scaled", {"nsr_id": nsr_id, "nslcmop_id": nslcmop_id,
-                                                             "operationState": nslcmop_operation_state},
-                                            loop=self.loop)
-                    # if cooldown_time:
-                    #     await asyncio.sleep(cooldown_time, loop=self.loop)
-                    # await self.msg.aiowrite("ns","scaled-cooldown-time", {"nsr_id": nsr_id, "nslcmop_id": nslcmop_id})
+                    msg = {"nsr_id": nsr_id, "nslcmop_id": nslcmop_id, "operationState": nslcmop_operation_state}
+                    await self.msg.aiowrite("ns", "scaled", msg, loop=self.loop)
                 except Exception as e:
                     self.logger.error(logging_text + "kafka_write notification Exception {}".format(e))
             self.logger.debug(logging_text + "Exit")
             self.lcm_tasks.remove("ns", nsr_id, nslcmop_id, "ns_scale")
+
+    async def _scale_ng_ro(self, logging_text, db_nsr, db_nslcmop, db_vnfr, vdu_scaling_info, stage):
+        nsr_id = db_nslcmop["nsInstanceId"]
+        db_nsd = self.db.get_one("nsds", {"_id": db_nsr["nsd-id"]})
+        db_vnfrs = {}
+
+        # read from db: vnfd's for every vnf
+        db_vnfds = []
+
+        # for each vnf in ns, read vnfd
+        for vnfr in self.db.get_list("vnfrs", {"nsr-id-ref": nsr_id}):
+            db_vnfrs[vnfr["member-vnf-index-ref"]] = vnfr
+            vnfd_id = vnfr["vnfd-id"]  # vnfd uuid for this vnf
+            # if we haven't this vnfd, read it from db
+            if not find_in_list(db_vnfds, lambda a_vnfd: a_vnfd["id"] == vnfd_id):
+                # read from db
+                vnfd = self.db.get_one("vnfds", {"_id": vnfd_id})
+                db_vnfds.append(vnfd)
+        n2vc_key = self.n2vc.get_public_key()
+        n2vc_key_list = [n2vc_key]
+        self.scale_vnfr(db_vnfr, vdu_scaling_info.get("vdu-create"), vdu_scaling_info.get("vdu-delete"),
+                        mark_delete=True)
+        # db_vnfr has been updated, update db_vnfrs to use it
+        db_vnfrs[db_vnfr["member-vnf-index-ref"]] = db_vnfr
+        await self._instantiate_ng_ro(logging_text, nsr_id, db_nsd, db_nsr, db_nslcmop, db_vnfrs,
+                                      db_vnfds, n2vc_key_list, stage=stage, start_deploy=time(),
+                                      timeout_ns_deploy=self.timeout_ns_deploy)
+        if vdu_scaling_info.get("vdu-delete"):
+            self.scale_vnfr(db_vnfr, None, vdu_scaling_info["vdu-delete"], mark_delete=False)
+
+    async def add_prometheus_metrics(self, ee_id, artifact_path, ee_config_descriptor, vnfr_id, nsr_id, target_ip):
+        if not self.prometheus:
+            return
+        # look if exist a file called 'prometheus*.j2' and
+        artifact_content = self.fs.dir_ls(artifact_path)
+        job_file = next((f for f in artifact_content if f.startswith("prometheus") and f.endswith(".j2")), None)
+        if not job_file:
+            return
+        with self.fs.file_open((artifact_path, job_file), "r") as f:
+            job_data = f.read()
+
+        # TODO get_service
+        _, _, service = ee_id.partition(".")   # remove prefix   "namespace."
+        host_name = "{}-{}".format(service, ee_config_descriptor["metric-service"])
+        host_port = "80"
+        vnfr_id = vnfr_id.replace("-", "")
+        variables = {
+            "JOB_NAME": vnfr_id,
+            "TARGET_IP": target_ip,
+            "EXPORTER_POD_IP": host_name,
+            "EXPORTER_POD_PORT": host_port,
+        }
+        job_list = self.prometheus.parse_job(job_data, variables)
+        # ensure job_name is using the vnfr_id. Adding the metadata nsr_id
+        for job in job_list:
+            if not isinstance(job.get("job_name"), str) or vnfr_id not in job["job_name"]:
+                job["job_name"] = vnfr_id + "_" + str(randint(1, 10000))
+            job["nsr_id"] = nsr_id
+        job_dict = {jl["job_name"]: jl for jl in job_list}
+        if await self.prometheus.update(job_dict):
+            return list(job_dict.keys())
+
+    def get_vca_cloud_and_credentials(self, vim_account_id: str) -> (str, str):
+        """
+        Get VCA Cloud and VCA Cloud Credentials for the VIM account
+
+        :param: vim_account_id:     VIM Account ID
+
+        :return: (cloud_name, cloud_credential)
+        """
+        config = VimAccountDB.get_vim_account_with_id(vim_account_id).get("config", {})
+        return config.get("vca_cloud"), config.get("vca_cloud_credential")
+
+    def get_vca_k8s_cloud_and_credentials(self, vim_account_id: str) -> (str, str):
+        """
+        Get VCA K8s Cloud and VCA K8s Cloud Credentials for the VIM account
+
+        :param: vim_account_id:     VIM Account ID
+
+        :return: (cloud_name, cloud_credential)
+        """
+        config = VimAccountDB.get_vim_account_with_id(vim_account_id).get("config", {})
+        return config.get("vca_k8s_cloud"), config.get("vca_k8s_cloud_credential")