bug 668. Fix existing flavor as not created
[osm/RO.git] / osm_ro / vimconn_openstack.py
index 876fa2f..073a752 100644 (file)
@@ -109,7 +109,11 @@ class vimconnector(vimconn.vimconnector):
 
         if config.get('dataplane_net_vlan_range') is not None:
             #validate vlan ranges provided by user
-            self._validate_vlan_ranges(config.get('dataplane_net_vlan_range'))
+            self._validate_vlan_ranges(config.get('dataplane_net_vlan_range'), 'dataplane_net_vlan_range')
+
+        if config.get('multisegment_vlan_range') is not None:
+            #validate vlan ranges provided by user
+            self._validate_vlan_ranges(config.get('multisegment_vlan_range'), 'multisegment_vlan_range')
 
         vimconn.vimconnector.__init__(self, uuid, name, tenant_id, tenant_name, url, url_admin, user, passwd, log_level,
                                       config)
@@ -127,6 +131,7 @@ class vimconnector(vimconn.vimconnector):
         self.persistent_info = persistent_info
         self.availability_zone = persistent_info.get('availability_zone', None)
         self.session = persistent_info.get('session', {'reload_client': True})
+        self.my_tenant_id = self.session.get('my_tenant_id')
         self.nova = self.session.get('nova')
         self.neutron = self.session.get('neutron')
         self.cinder = self.session.get('cinder')
@@ -144,6 +149,11 @@ class vimconnector(vimconn.vimconnector):
 
         self.logger = logging.getLogger('openmano.vim.openstack')
 
+        # allow security_groups to be a list or a single string
+        if isinstance(self.config.get('security_groups'), str):
+            self.config['security_groups'] = [self.config['security_groups']]
+        self.security_groups_id = None
+
         ####### VIO Specific Changes #########
         if self.vim_type == "VIO":
             self.logger = logging.getLogger('openmano.vim.vio')
@@ -227,8 +237,10 @@ class vimconnector(vimconn.vimconnector):
                                    tenant_name=self.tenant_name,
                                    tenant_id=self.tenant_id)
             sess = session.Session(auth=auth, verify=self.verify)
+            # addedd region_name to keystone, nova, neutron and cinder to support distributed cloud for Wind River Titanium cloud and StarlingX
+            region_name = self.config.get('region_name')
             if self.api_version3:
-                self.keystone = ksClient_v3.Client(session=sess, endpoint_type=self.endpoint_type)
+                self.keystone = ksClient_v3.Client(session=sess, endpoint_type=self.endpoint_type, region_name=region_name)
             else:
                 self.keystone = ksClient_v2.Client(session=sess, endpoint_type=self.endpoint_type)
             self.session['keystone'] = self.keystone
@@ -241,16 +253,21 @@ class vimconnector(vimconn.vimconnector):
             version = self.config.get("microversion")
             if not version:
                 version = "2.1"
-            self.nova = self.session['nova'] = nClient.Client(str(version), session=sess, endpoint_type=self.endpoint_type)
-            self.neutron = self.session['neutron'] = neClient.Client('2.0', session=sess, endpoint_type=self.endpoint_type)
-            self.cinder = self.session['cinder'] = cClient.Client(2, session=sess, endpoint_type=self.endpoint_type)
+            # addedd region_name to keystone, nova, neutron and cinder to support distributed cloud for Wind River Titanium cloud and StarlingX
+            self.nova = self.session['nova'] = nClient.Client(str(version), session=sess, endpoint_type=self.endpoint_type, region_name=region_name)
+            self.neutron = self.session['neutron'] = neClient.Client('2.0', session=sess, endpoint_type=self.endpoint_type, region_name=region_name)
+            self.cinder = self.session['cinder'] = cClient.Client(2, session=sess, endpoint_type=self.endpoint_type, region_name=region_name)
+            try:
+                self.my_tenant_id = self.session['my_tenant_id'] = sess.get_project_id()
+            except Exception as e:
+                self.logger.error("Cannot get project_id from session", exc_info=True)
             if self.endpoint_type == "internalURL":
                 glance_service_id = self.keystone.services.list(name="glance")[0].id
                 glance_endpoint = self.keystone.endpoints.list(glance_service_id, interface="internal")[0].url
             else:
                 glance_endpoint = None
             self.glance = self.session['glance'] = glClient.Client(2, session=sess, endpoint=glance_endpoint)
-            #using version 1 of glance client in new_image()
+            # using version 1 of glance client in new_image()
             # self.glancev1 = self.session['glancev1'] = glClient.Client('1', session=sess,
             #                                                            endpoint=glance_endpoint)
             self.session['reload_client'] = False
@@ -258,6 +275,7 @@ class vimconnector(vimconn.vimconnector):
             # add availablity zone info inside  self.persistent_info
             self._set_availablity_zones()
             self.persistent_info['availability_zone'] = self.availability_zone
+            self.security_groups_id = None  # force to get again security_groups_ids next time they are needed
 
     def __net_os2mano(self, net_list_dict):
         '''Transform the net openstack format to mano format
@@ -380,23 +398,55 @@ class vimconnector(vimconn.vimconnector):
 
     def _format_exception(self, exception):
         '''Transform a keystone, nova, neutron  exception into a vimconn exception'''
-        if isinstance(exception, (neExceptions.NetworkNotFoundClient, nvExceptions.NotFound, ksExceptions.NotFound, gl1Exceptions.HTTPNotFound)):
-            raise vimconn.vimconnNotFoundException(type(exception).__name__ + ": " + str(exception))
+
+        # Fixing bug 665 https://osm.etsi.org/bugzilla/show_bug.cgi?id=665
+        # There are some openstack versions that message error are unicode with non English
+        message_error = exception.message
+        if isinstance(message_error, unicode):
+            message_error = message_error.encode("utf")
+
+        if isinstance(exception, (neExceptions.NetworkNotFoundClient, nvExceptions.NotFound, ksExceptions.NotFound,
+                                  gl1Exceptions.HTTPNotFound)):
+            raise vimconn.vimconnNotFoundException(type(exception).__name__ + ": " + message_error)
         elif isinstance(exception, (HTTPException, gl1Exceptions.HTTPException, gl1Exceptions.CommunicationError,
                                ConnectionError, ksExceptions.ConnectionError, neExceptions.ConnectionFailed)):
-            raise vimconn.vimconnConnectionException(type(exception).__name__ + ": " + str(exception))
+            raise vimconn.vimconnConnectionException(type(exception).__name__ + ": " + message_error)
         elif isinstance(exception,  (KeyError, nvExceptions.BadRequest, ksExceptions.BadRequest)):
-            raise vimconn.vimconnException(type(exception).__name__ + ": " + str(exception))
+            raise vimconn.vimconnException(type(exception).__name__ + ": " + message_error)
         elif isinstance(exception, (nvExceptions.ClientException, ksExceptions.ClientException,
                                     neExceptions.NeutronException)):
-            raise vimconn.vimconnUnexpectedResponse(type(exception).__name__ + ": " + str(exception))
+            raise vimconn.vimconnUnexpectedResponse(type(exception).__name__ + ": " + message_error)
         elif isinstance(exception, nvExceptions.Conflict):
-            raise vimconn.vimconnConflictException(type(exception).__name__ + ": " + str(exception))
+            raise vimconn.vimconnConflictException(type(exception).__name__ + ": " + message_error)
         elif isinstance(exception, vimconn.vimconnException):
             raise exception
         else:  # ()
-            self.logger.error("General Exception " + str(exception), exc_info=True)
-            raise vimconn.vimconnConnectionException(type(exception).__name__ + ": " + str(exception))
+            self.logger.error("General Exception " + message_error, exc_info=True)
+            raise vimconn.vimconnConnectionException(type(exception).__name__ + ": " + message_error)
+
+    def _get_ids_from_name(self):
+        """
+         Obtain ids from name of tenant and security_groups. Store at self .security_groups_id"
+        :return: None
+        """
+        # get tenant_id if only tenant_name is supplied
+        self._reload_connection()
+        if not self.my_tenant_id:
+            raise vimconn.vimconnConnectionException("Error getting tenant information from name={} id={}".
+                                                     format(self.tenant_name, self.tenant_id))
+        if self.config.get('security_groups') and not self.security_groups_id:
+            # convert from name to id
+            neutron_sg_list = self.neutron.list_security_groups(tenant_id=self.my_tenant_id)["security_groups"]
+
+            self.security_groups_id = []
+            for sg in self.config.get('security_groups'):
+                for neutron_sg in neutron_sg_list:
+                    if sg in (neutron_sg["id"], neutron_sg["name"]):
+                        self.security_groups_id.append(neutron_sg["id"])
+                        break
+                else:
+                    self.security_groups_id = None
+                    raise vimconn.vimconnConnectionException("Not found security group {} for this tenant".format(sg))
 
     def get_tenant_list(self, filter_dict={}):
         '''Obtain tenants of VIM
@@ -450,20 +500,63 @@ class vimconnector(vimconn.vimconnector):
             self._format_exception(e)
 
     def new_network(self,net_name, net_type, ip_profile=None, shared=False, vlan=None):
-        '''Adds a tenant network to VIM. Returns the network identifier'''
+        """Adds a tenant network to VIM
+        Params:
+            'net_name': name of the network
+            'net_type': one of:
+                'bridge': overlay isolated network
+                'data':   underlay E-LAN network for Passthrough and SRIOV interfaces
+                'ptp':    underlay E-LINE network for Passthrough and SRIOV interfaces.
+            'ip_profile': is a dict containing the IP parameters of the network
+                'ip_version': can be "IPv4" or "IPv6" (Currently only IPv4 is implemented)
+                'subnet_address': ip_prefix_schema, that is X.X.X.X/Y
+                'gateway_address': (Optional) ip_schema, that is X.X.X.X
+                'dns_address': (Optional) comma separated list of ip_schema, e.g. X.X.X.X[,X,X,X,X]
+                'dhcp_enabled': True or False
+                'dhcp_start_address': ip_schema, first IP to grant
+                'dhcp_count': number of IPs to grant.
+            'shared': if this network can be seen/use by other tenants/organization
+            'vlan': in case of a data or ptp net_type, the intended vlan tag to be used for the network
+        Returns a tuple with the network identifier and created_items, or raises an exception on error
+            created_items can be None or a dictionary where this method can include key-values that will be passed to
+            the method delete_network. Can be used to store created segments, created l2gw connections, etc.
+            Format is vimconnector dependent, but do not use nested dictionaries and a value of None should be the same
+            as not present.
+        """
         self.logger.debug("Adding a new network to VIM name '%s', type '%s'", net_name, net_type)
-        #self.logger.debug(">>>>>>>>>>>>>>>>>> IP profile %s", str(ip_profile))
+        # self.logger.debug(">>>>>>>>>>>>>>>>>> IP profile %s", str(ip_profile))
         try:
             new_net = None
+            created_items = {}
             self._reload_connection()
             network_dict = {'name': net_name, 'admin_state_up': True}
             if net_type=="data" or net_type=="ptp":
                 if self.config.get('dataplane_physical_net') == None:
                     raise vimconn.vimconnConflictException("You must provide a 'dataplane_physical_net' at config value before creating sriov network")
-                network_dict["provider:physical_network"] = self.config['dataplane_physical_net'] #"physnet_sriov" #TODO physical
-                network_dict["provider:network_type"]     = "vlan"
-                if vlan!=None:
-                    network_dict["provider:network_type"] = vlan
+                if not self.config.get('multisegment_support'):
+                    network_dict["provider:physical_network"] = self.config[
+                        'dataplane_physical_net']  # "physnet_sriov" #TODO physical
+                    network_dict["provider:network_type"] = "vlan"
+                    if vlan!=None:
+                        network_dict["provider:network_type"] = vlan
+                else:
+                    ###### Multi-segment case ######
+                    segment_list = []
+                    segment1_dict = {}
+                    segment1_dict["provider:physical_network"] = ''
+                    segment1_dict["provider:network_type"]     = 'vxlan'
+                    segment_list.append(segment1_dict)
+                    segment2_dict = {}
+                    segment2_dict["provider:physical_network"] = self.config['dataplane_physical_net']
+                    segment2_dict["provider:network_type"]     = "vlan"
+                    if self.config.get('multisegment_vlan_range'):
+                        vlanID = self._generate_multisegment_vlanID()
+                        segment2_dict["provider:segmentation_id"] = vlanID
+                    # else
+                    #     raise vimconn.vimconnConflictException(
+                    #         "You must provide 'multisegment_vlan_range' at config dict before creating a multisegment network")
+                    segment_list.append(segment2_dict)
+                    network_dict["segments"] = segment_list
 
                 ####### VIO Specific Changes #########
                 if self.vim_type == "VIO":
@@ -475,12 +568,14 @@ class vimconnector(vimconn.vimconnector):
                                 "'dataplane_net_vlan_range' in format [start_ID - end_ID]"\
                                 "at config value before creating sriov network with vlan tag")
 
-                        network_dict["provider:segmentation_id"] = self._genrate_vlanID()
+                        network_dict["provider:segmentation_id"] = self._generate_vlanID()
 
-            network_dict["shared"]=shared
-            new_net=self.neutron.create_network({'network':network_dict})
-            #print new_net
-            #create subnetwork, even if there is no profile
+            network_dict["shared"] = shared
+            if self.config.get("disable_network_port_security"):
+                network_dict["port_security_enabled"] = False
+            new_net = self.neutron.create_network({'network':network_dict})
+            # print new_net
+            # create subnetwork, even if there is no profile
             if not ip_profile:
                 ip_profile = {}
             if not ip_profile.get('subnet_address'):
@@ -489,7 +584,7 @@ class vimconnector(vimconn.vimconnector):
                 ip_profile['subnet_address'] = "192.168.{}.0/24".format(subnet_rand)
             if 'ip_version' not in ip_profile:
                 ip_profile['ip_version'] = "IPv4"
-            subnet = {"name":net_name+"-subnet",
+            subnet = {"name": net_name+"-subnet",
                     "network_id": new_net["network"]["id"],
                     "ip_version": 4 if ip_profile['ip_version']=="IPv4" else 6,
                     "cidr": ip_profile['subnet_address']
@@ -517,8 +612,29 @@ class vimconnector(vimconn.vimconnector):
                 subnet['allocation_pools'][0]['end'] = ip_str
             #self.logger.debug(">>>>>>>>>>>>>>>>>> Subnet: %s", str(subnet))
             self.neutron.create_subnet({"subnet": subnet} )
-            return new_net["network"]["id"]
+
+            if net_type == "data" and self.config.get('multisegment_support'):
+                if self.config.get('l2gw_support'):
+                    l2gw_list = self.neutron.list_l2_gateways().get("l2_gateways", ())
+                    for l2gw in l2gw_list:
+                        l2gw_conn = {}
+                        l2gw_conn["l2_gateway_id"] = l2gw["id"]
+                        l2gw_conn["network_id"] = new_net["network"]["id"]
+                        l2gw_conn["segmentation_id"] = str(vlanID)
+                        new_l2gw_conn = self.neutron.create_l2_gateway_connection({"l2_gateway_connection": l2gw_conn})
+                        created_items["l2gwconn:" + str(new_l2gw_conn["l2_gateway_connection"]["id"])] = True
+            return new_net["network"]["id"], created_items
         except Exception as e:
+            #delete l2gw connections (if any) before deleting the network
+            for k, v in created_items.items():
+                if not v:  # skip already deleted
+                    continue
+                try:
+                    k_item, _, k_id = k.partition(":")
+                    if k_item == "l2gwconn":
+                        self.neutron.delete_l2_gateway_connection(k_id)
+                except Exception as e2:
+                    self.logger.error("Error deleting l2 gateway connection: {}: {}".format(type(e2).__name__, e2))
             if new_net:
                 self.neutron.delete_network(new_net['network']['id'])
             self._format_exception(e)
@@ -568,14 +684,33 @@ class vimconnector(vimconn.vimconnector):
             subnets.append(subnet)
         net["subnets"] = subnets
         net["encapsulation"] = net.get('provider:network_type')
+        net["encapsulation_type"] = net.get('provider:network_type')
         net["segmentation_id"] = net.get('provider:segmentation_id')
+        net["encapsulation_id"] = net.get('provider:segmentation_id')
         return net
 
-    def delete_network(self, net_id):
-        '''Deletes a tenant network from VIM. Returns the old network identifier'''
+    def delete_network(self, net_id, created_items=None):
+        """
+        Removes a tenant network from VIM and its associated elements
+        :param net_id: VIM identifier of the network, provided by method new_network
+        :param created_items: dictionary with extra items to be deleted. provided by method new_network
+        Returns the network identifier or raises an exception upon error or when network is not found
+        """
         self.logger.debug("Deleting network '%s' from VIM", net_id)
+        if created_items == None:
+            created_items = {}
         try:
             self._reload_connection()
+            #delete l2gw connections (if any) before deleting the network
+            for k, v in created_items.items():
+                if not v:  # skip already deleted
+                    continue
+                try:
+                    k_item, _, k_id = k.partition(":")
+                    if k_item == "l2gwconn":
+                        self.neutron.delete_l2_gateway_connection(k_id)
+                except Exception as e:
+                    self.logger.error("Error deleting l2 gateway connection: {}: {}".format(type(e).__name__, e))
             #delete VM ports attached to this networks before the network
             ports = self.neutron.list_ports(network_id=net_id)
             for p in ports['ports']:
@@ -661,10 +796,10 @@ class vimconnector(vimconn.vimconnector):
             flavor_candidate_data = (10000, 10000, 10000)
             flavor_target = (flavor_dict["ram"], flavor_dict["vcpus"], flavor_dict["disk"])
             # numa=None
-            numas = flavor_dict.get("extended", {}).get("numas")
-            if numas:
+            extended = flavor_dict.get("extended", {})
+            if extended:
                 #TODO
-                raise vimconn.vimconnNotFoundException("Flavor with EPA still not implemted")
+                raise vimconn.vimconnNotFoundException("Flavor with EPA still not implemented")
                 # if len(numas) > 1:
                 #     raise vimconn.vimconnNotFoundException("Cannot find any flavor with more than one numa")
                 # numa=numas[0]
@@ -686,6 +821,20 @@ class vimconnector(vimconn.vimconnector):
         except (nvExceptions.NotFound, nvExceptions.ClientException, ksExceptions.ClientException, ConnectionError) as e:
             self._format_exception(e)
 
+    def process_resource_quota(self, quota, prefix, extra_specs):
+        """
+        :param prefix:
+        :param extra_specs: 
+        :return:
+        """
+        if 'limit' in quota:
+            extra_specs["quota:" + prefix + "_limit"] = quota['limit']
+        if 'reserve' in quota:
+            extra_specs["quota:" + prefix + "_reservation"] = quota['reserve']
+        if 'shares' in quota:
+            extra_specs["quota:" + prefix + "_shares_level"] = "custom"
+            extra_specs["quota:" + prefix + "_shares_share"] = quota['shares']
+
     def new_flavor(self, flavor_data, change_name_if_used=True):
         '''Adds a tenant flavor to openstack VIM
         if change_name_if_used is True, it will change name in case of conflict, because it is not supported name repetition
@@ -713,7 +862,7 @@ class vimconnector(vimconn.vimconnector):
 
                     ram = flavor_data.get('ram',64)
                     vcpus = flavor_data.get('vcpus',1)
-                    numa_properties=None
+                    extra_specs={}
 
                     extended = flavor_data.get("extended")
                     if extended:
@@ -722,39 +871,47 @@ class vimconnector(vimconn.vimconnector):
                             numa_nodes = len(numas)
                             if numa_nodes > 1:
                                 return -1, "Can not add flavor with more than one numa"
-                            numa_properties = {"hw:numa_nodes":str(numa_nodes)}
-                            numa_properties["hw:mem_page_size"] = "large"
-                            numa_properties["hw:cpu_policy"] = "dedicated"
-                            numa_properties["hw:numa_mempolicy"] = "strict"
+                            extra_specs["hw:numa_nodes"] = str(numa_nodes)
+                            extra_specs["hw:mem_page_size"] = "large"
+                            extra_specs["hw:cpu_policy"] = "dedicated"
+                            extra_specs["hw:numa_mempolicy"] = "strict"
                             if self.vim_type == "VIO":
-                                numa_properties["vmware:extra_config"] = '{"numa.nodeAffinity":"0"}'
-                                numa_properties["vmware:latency_sensitivity_level"] = "high"
+                                extra_specs["vmware:extra_config"] = '{"numa.nodeAffinity":"0"}'
+                                extra_specs["vmware:latency_sensitivity_level"] = "high"
                             for numa in numas:
                                 #overwrite ram and vcpus
                                 #check if key 'memory' is present in numa else use ram value at flavor
                                 if 'memory' in numa:
                                     ram = numa['memory']*1024
                                 #See for reference: https://specs.openstack.org/openstack/nova-specs/specs/mitaka/implemented/virt-driver-cpu-thread-pinning.html
+                                extra_specs["hw:cpu_sockets"] = 1
                                 if 'paired-threads' in numa:
                                     vcpus = numa['paired-threads']*2
                                     #cpu_thread_policy "require" implies that the compute node must have an STM architecture
-                                    numa_properties["hw:cpu_thread_policy"] = "require"
-                                    numa_properties["hw:cpu_policy"] = "dedicated"
+                                    extra_specs["hw:cpu_thread_policy"] = "require"
+                                    extra_specs["hw:cpu_policy"] = "dedicated"
                                 elif 'cores' in numa:
                                     vcpus = numa['cores']
                                     # cpu_thread_policy "prefer" implies that the host must not have an SMT architecture, or a non-SMT architecture will be emulated
-                                    numa_properties["hw:cpu_thread_policy"] = "isolate"
-                                    numa_properties["hw:cpu_policy"] = "dedicated"
+                                    extra_specs["hw:cpu_thread_policy"] = "isolate"
+                                    extra_specs["hw:cpu_policy"] = "dedicated"
                                 elif 'threads' in numa:
                                     vcpus = numa['threads']
                                     # cpu_thread_policy "prefer" implies that the host may or may not have an SMT architecture
-                                    numa_properties["hw:cpu_thread_policy"] = "prefer"
-                                    numa_properties["hw:cpu_policy"] = "dedicated"
+                                    extra_specs["hw:cpu_thread_policy"] = "prefer"
+                                    extra_specs["hw:cpu_policy"] = "dedicated"
                                 # for interface in numa.get("interfaces",() ):
                                 #     if interface["dedicated"]=="yes":
                                 #         raise vimconn.vimconnException("Passthrough interfaces are not supported for the openstack connector", http_code=vimconn.HTTP_Service_Unavailable)
                                 #     #TODO, add the key 'pci_passthrough:alias"="<label at config>:<number ifaces>"' when a way to connect it is available
-
+                        elif extended.get("cpu-quota"):
+                            self.process_resource_quota(extended.get("cpu-quota"), "cpu", extra_specs)
+                        if extended.get("mem-quota"):
+                            self.process_resource_quota(extended.get("mem-quota"), "memory", extra_specs)
+                        if extended.get("vif-quota"):
+                            self.process_resource_quota(extended.get("vif-quota"), "vif", extra_specs)
+                        if extended.get("disk-io-quota"):
+                            self.process_resource_quota(extended.get("disk-io-quota"), "disk_io", extra_specs)
                     #create flavor
                     new_flavor=self.nova.flavors.create(name,
                                     ram,
@@ -763,8 +920,8 @@ class vimconnector(vimconn.vimconnector):
                                     is_public=flavor_data.get('is_public', True)
                                 )
                     #add metadata
-                    if numa_properties:
-                        new_flavor.set_keys(numa_properties)
+                    if extra_specs:
+                        new_flavor.set_keys(extra_specs)
                     return new_flavor.id
                 except nvExceptions.Conflict as e:
                     if change_name_if_used and retry < max_retries:
@@ -1045,15 +1202,22 @@ class vimconnector(vimconn.vimconnector):
             self._reload_connection()
             # metadata_vpci = {}   # For a specific neutron plugin
             block_device_mapping = None
+
             for net in net_list:
                 if not net.get("net_id"):   # skip non connected iface
                     continue
 
-                port_dict={
+                port_dict = {
                     "network_id": net["net_id"],
                     "name": net.get("name"),
                     "admin_state_up": True
                 }
+                if self.config.get("security_groups") and net.get("port_security") is not False and \
+                        not self.config.get("no_port_security_extension"):
+                    if not self.security_groups_id:
+                        self._get_ids_from_name()
+                    port_dict["security_groups"] = self.security_groups_id
+
                 if net["type"]=="virtual":
                     pass
                     # if "vpci" in net:
@@ -1130,9 +1294,6 @@ class vimconnector(vimconn.vimconnector):
             self.logger.debug("name '%s' image_id '%s'flavor_id '%s' net_list_vim '%s' description '%s'",
                               name, image_id, flavor_id, str(net_list_vim), description)
 
-            security_groups = self.config.get('security_groups')
-            if type(security_groups) is str:
-                security_groups = ( security_groups, )
             # cloud config
             config_drive, userdata = self._create_user_data(cloud_config)
 
@@ -1176,10 +1337,12 @@ class vimconnector(vimconn.vimconnector):
             self.logger.debug("nova.servers.create({}, {}, {}, nics={}, security_groups={}, "
                               "availability_zone={}, key_name={}, userdata={}, config_drive={}, "
                               "block_device_mapping={})".format(name, image_id, flavor_id, net_list_vim,
-                                                                security_groups, vm_av_zone, self.config.get('keypair'),
-                                                                userdata, config_drive, block_device_mapping))
+                                                                self.config.get("security_groups"), vm_av_zone,
+                                                                self.config.get('keypair'), userdata, config_drive,
+                                                                block_device_mapping))
             server = self.nova.servers.create(name, image_id, flavor_id, nics=net_list_vim,
-                                              security_groups=security_groups,
+                                              security_groups=self.config.get("security_groups"),
+                                              # TODO remove security_groups in future versions. Already at neutron port
                                               availability_zone=vm_av_zone,
                                               key_name=self.config.get('keypair'),
                                               userdata=userdata,
@@ -1579,7 +1742,7 @@ class vimconnector(vimconn.vimconnector):
         #TODO insert exception vimconn.HTTP_Unauthorized
 
     ####### VIO Specific Changes #########
-    def _genrate_vlanID(self):
+    def _generate_vlanID(self):
         """
          Method to get unused vlanID
             Args:
@@ -1609,35 +1772,69 @@ class vimconnector(vimconn.vimconnector):
                 " All given Vlan IDs {} are in use.".format(self.config.get('dataplane_net_vlan_range')))
 
 
-    def _validate_vlan_ranges(self, dataplane_net_vlan_range):
+    def _generate_multisegment_vlanID(self):
+        """
+         Method to get unused vlanID
+            Args:
+                None
+            Returns:
+                vlanID
+        """
+        #Get used VLAN IDs
+        usedVlanIDs = []
+        networks = self.get_network_list()
+        for net in networks:
+            if net.get('provider:network_type') == "vlan" and net.get('provider:segmentation_id'):
+                usedVlanIDs.append(net.get('provider:segmentation_id'))
+            elif net.get('segments'):
+                for segment in net.get('segments'):
+                    if segment.get('provider:network_type') == "vlan" and segment.get('provider:segmentation_id'):
+                        usedVlanIDs.append(segment.get('provider:segmentation_id'))
+        used_vlanIDs = set(usedVlanIDs)
+
+        #find unused VLAN ID
+        for vlanID_range in self.config.get('multisegment_vlan_range'):
+            try:
+                start_vlanid , end_vlanid = map(int, vlanID_range.replace(" ", "").split("-"))
+                for vlanID in xrange(start_vlanid, end_vlanid + 1):
+                    if vlanID not in used_vlanIDs:
+                        return vlanID
+            except Exception as exp:
+                raise vimconn.vimconnException("Exception {} occurred while generating VLAN ID.".format(exp))
+        else:
+            raise vimconn.vimconnConflictException("Unable to create the VLAN segment."\
+                " All VLAN IDs {} are in use.".format(self.config.get('multisegment_vlan_range')))
+
+
+    def _validate_vlan_ranges(self, input_vlan_range, text_vlan_range):
         """
         Method to validate user given vlanID ranges
             Args:  None
             Returns: None
         """
-        for vlanID_range in dataplane_net_vlan_range:
+        for vlanID_range in input_vlan_range:
             vlan_range = vlanID_range.replace(" ", "")
             #validate format
             vlanID_pattern = r'(\d)*-(\d)*$'
             match_obj = re.match(vlanID_pattern, vlan_range)
             if not match_obj:
-                raise vimconn.vimconnConflictException("Invalid dataplane_net_vlan_range {}.You must provide "\
-                "'dataplane_net_vlan_range' in format [start_ID - end_ID].".format(vlanID_range))
+                raise vimconn.vimconnConflictException("Invalid VLAN range for {}: {}.You must provide "\
+                "'{}' in format [start_ID - end_ID].".format(text_vlan_range, vlanID_range, text_vlan_range))
 
             start_vlanid , end_vlanid = map(int,vlan_range.split("-"))
             if start_vlanid <= 0 :
-                raise vimconn.vimconnConflictException("Invalid dataplane_net_vlan_range {}."\
+                raise vimconn.vimconnConflictException("Invalid VLAN range for {}: {}."\
                 "Start ID can not be zero. For VLAN "\
-                "networks valid IDs are 1 to 4094 ".format(vlanID_range))
+                "networks valid IDs are 1 to 4094 ".format(text_vlan_range, vlanID_range))
             if end_vlanid > 4094 :
-                raise vimconn.vimconnConflictException("Invalid dataplane_net_vlan_range {}."\
+                raise vimconn.vimconnConflictException("Invalid VLAN range for {}: {}."\
                 "End VLAN ID can not be greater than 4094. For VLAN "\
-                "networks valid IDs are 1 to 4094 ".format(vlanID_range))
+                "networks valid IDs are 1 to 4094 ".format(text_vlan_range, vlanID_range))
 
             if start_vlanid > end_vlanid:
-                raise vimconn.vimconnConflictException("Invalid dataplane_net_vlan_range {}."\
-                    "You must provide a 'dataplane_net_vlan_range' in format start_ID - end_ID and "\
-                    "start_ID < end_ID ".format(vlanID_range))
+                raise vimconn.vimconnConflictException("Invalid VLAN range for {}: {}."\
+                    "You must provide '{}' in format start_ID - end_ID and "\
+                    "start_ID < end_ID ".format(text_vlan_range, vlanID_range, text_vlan_range))
 
 #NOT USED FUNCTIONS
 
@@ -1974,7 +2171,7 @@ class vimconnector(vimconn.vimconnector):
             self._reload_connection()
             # In networking-sfc the MPLS encapsulation is legacy
             # should be used when no full SFC Encapsulation is intended
-            sfc_encap = 'mpls'
+            correlation = 'mpls'
             if sfc_encap:
                 correlation = 'nsh'
             sfp_dict = {'name': name,