From: stevenvanrossem Date: Thu, 27 Apr 2017 13:10:59 +0000 (+0200) Subject: use unique vnf_id iso vnf_name to identify vnfs in the nsd/vnfd X-Git-Tag: v3.1~30^2~13^2 X-Git-Url: https://osm.etsi.org/gitweb/?p=osm%2Fvim-emu.git;a=commitdiff_plain;h=a58772a51328578fea11f2d5f388b639abf9e810 use unique vnf_id iso vnf_name to identify vnfs in the nsd/vnfd --- diff --git a/src/emuvim/api/sonata/dummygatekeeper.py b/src/emuvim/api/sonata/dummygatekeeper.py index 5214146..85aa5e8 100755 --- a/src/emuvim/api/sonata/dummygatekeeper.py +++ b/src/emuvim/api/sonata/dummygatekeeper.py @@ -149,7 +149,8 @@ class Service(object): self.local_docker_files = dict() self.remote_docker_image_urls = dict() self.instances = dict() - self.vnf_name2docker_name = dict() + #self.vnf_name2docker_name = dict() + # dict to find the vnf_name for any vnf id self.vnf_id2vnf_name = dict() def onboard(self): @@ -165,11 +166,6 @@ class Service(object): self._load_vnfd() if DEPLOY_SAP: self._load_saps() - # create dict to translate vnf names - self.vnf_id2vnf_name = defaultdict(lambda: "NotExistingNode", - reduce(lambda x, y: dict(x, **y), - map(lambda d: {d["vnf_id"]: d["vnf_name"]}, - self.nsd["network_functions"]))) # 3. prepare container images (e.g. download or build Dockerfile) if BUILD_DOCKERFILE: self._load_docker_files() @@ -199,12 +195,12 @@ class Service(object): if not GK_STANDALONE_MODE: #self._calculate_placement(FirstDcPlacement) self._calculate_placement(RoundRobinDcPlacementWithSAPs) - # 3. start all vnfds that we have in the service (except SAPs) - for vnfd in self.vnfds.itervalues(): + for vnf_id in self.vnfds: + vnfd = self.vnfds[vnf_id] vnfi = None if not GK_STANDALONE_MODE: - vnfi = self._start_vnfd(vnfd) + vnfi = self._start_vnfd(vnfd, vnf_id) self.instances[instance_uuid]["vnf_instances"].append(vnfi) # 4. start all SAPs in the service @@ -264,19 +260,22 @@ class Service(object): # last step: remove the instance from the list of all instances del self.instances[instance_uuid] - def _start_vnfd(self, vnfd): + def _start_vnfd(self, vnfd, vnf_id): """ Start a single VNFD of this service :param vnfd: vnfd descriptor dict + :param vnf_id: unique id of this vnf in the nsd :return: """ + # the vnf_name refers to the container image to be deployed + vnf_name = vnfd.get("name") + # iterate over all deployment units within each VNFDs for u in vnfd.get("virtual_deployment_units"): # 1. get the name of the docker image to start and the assigned DC - vnf_name = vnfd.get("name") - if vnf_name not in self.remote_docker_image_urls: - raise Exception("No image name for %r found. Abort." % vnf_name) - docker_name = self.remote_docker_image_urls.get(vnf_name) + if vnf_id not in self.remote_docker_image_urls: + raise Exception("No image name for %r found. Abort." % vnf_id) + docker_name = self.remote_docker_image_urls.get(vnf_id) target_dc = vnfd.get("dc") # 2. perform some checks to ensure we can start the container assert(docker_name is not None) @@ -308,16 +307,10 @@ class Service(object): mem_lim = int(mem_limit) cpu_period, cpu_quota = self._calculate_cpu_cfs_values(float(cpu_bw)) - vnf_name2id = defaultdict(lambda: "NotExistingNode", - reduce(lambda x, y: dict(x, **y), - map(lambda d: {d["vnf_name"]: d["vnf_id"]}, - self.nsd["network_functions"]))) - # check if we need to deploy the management ports (defined as type:management both on in the vnfd and nsd) intfs = vnfd.get("connection_points", []) mgmt_intf_names = [] if USE_DOCKER_MGMT: - vnf_id = vnf_name2id[vnf_name] mgmt_intfs = [vnf_id + ':' + intf['id'] for intf in intfs if intf.get('type') == 'management'] # check if any of these management interfaces are used in a management-type network in the nsd for nsd_intf_name in mgmt_intfs: @@ -333,8 +326,8 @@ class Service(object): # 4. generate the volume paths for the docker container volumes=list() # a volume to extract log files - docker_log_path = "/tmp/results/%s/%s"%(self.uuid,vnf_name) - LOG.debug("LOG path for vnf %s is %s."%(vnf_name,docker_log_path)) + docker_log_path = "/tmp/results/%s/%s"%(self.uuid,vnf_id) + LOG.debug("LOG path for vnf %s is %s."%(vnf_id,docker_log_path)) if not os.path.exists(docker_log_path): LOG.debug("Creating folder %s"%docker_log_path) os.makedirs(docker_log_path) @@ -347,13 +340,10 @@ class Service(object): # TODO: get all vnf id's from the nsd for this vnfd and use those as dockername # use the vnf_id in the nsd as docker name # so deployed containers can be easily mapped back to the nsd - - self.vnf_name2docker_name[vnf_name] = vnf_name2id[vnf_name] - - LOG.info("Starting %r as %r in DC %r" % (vnf_name, self.vnf_name2docker_name[vnf_name], vnfd.get("dc"))) - LOG.debug("Interfaces for %r: %r" % (vnf_name, intfs)) + LOG.info("Starting %r as %r in DC %r" % (vnf_name, vnf_id, vnfd.get("dc"))) + LOG.debug("Interfaces for %r: %r" % (vnf_id, intfs)) vnfi = target_dc.startCompute( - self.vnf_name2docker_name[vnf_name], + vnf_id, network=intfs, image=docker_name, flavor_name="small", @@ -384,16 +374,16 @@ class Service(object): LOG.info("Stopping the vnf instance contained in %r in DC %r" % (status["name"], dc)) dc.stopCompute(status["name"]) - def _get_vnf_instance(self, instance_uuid, name): + def _get_vnf_instance(self, instance_uuid, vnf_id): """ - Returns the Docker object for the given VNF name (or Docker name). + Returns the Docker object for the given VNF id (or Docker name). :param instance_uuid: UUID of the service instance to search in. :param name: VNF name or Docker name. We are fuzzy here. :return: """ - dn = name - if name in self.vnf_name2docker_name: - dn = self.vnf_name2docker_name[name] + dn = vnf_id + #if vnf_id in self.vnf_name2docker_name: + # dn = self.vnf_name2docker_name[name] for vnfi in self.instances[instance_uuid]["vnf_instances"]: if vnfi.name == dn: return vnfi @@ -471,6 +461,11 @@ class Service(object): make_relative_path(self.manifest.get("entry_service_template"))) self.nsd = load_yaml(nsd_path) GK.net.deployed_nsds.append(self.nsd) + # create dict to find the vnf_name for any vnf id + self.vnf_id2vnf_name = defaultdict(lambda: "NotExistingNode", + reduce(lambda x, y: dict(x, **y), + map(lambda d: {d["vnf_id"]: d["vnf_name"]}, + self.nsd["network_functions"]))) LOG.debug("Loaded NSD: %r" % self.nsd.get("name")) @@ -479,6 +474,9 @@ class Service(object): Load all VNFD YAML files referenced in MANIFEST.MF and keep them in dict. :return: """ + + # first make a list of all the vnfds in the package + vnfd_set = dict() if "package_content" in self.manifest: for pc in self.manifest.get("package_content"): if pc.get("content-type") == "application/sonata.function_descriptor": @@ -486,8 +484,12 @@ class Service(object): self.package_content_path, make_relative_path(pc.get("name"))) vnfd = load_yaml(vnfd_path) - self.vnfds[vnfd.get("name")] = vnfd - LOG.debug("Loaded VNFD: %r" % vnfd.get("name")) + vnfd_set[vnfd.get("name")] = vnfd + # then link each vnf_id in the nsd to its vnfd + for vnf_id in self.vnf_id2vnf_name: + vnf_name = self.vnf_id2vnf_name[vnf_id] + self.vnfds[vnf_id] = vnfd_set[vnf_name] + LOG.debug("Loaded VNFD: {0} id: {1}".format(vnf_name, vnf_id)) def _load_saps(self): # create list of all SAPs @@ -509,7 +511,7 @@ class Service(object): sap_net = SAP_SUBNETS.pop(0) self.saps[sap_docker_name] = {"name": sap_docker_name , "type": "external", "net": sap_net} # add SAP vnf to list in the NSD so it is deployed later on - # each SAP get a unique VNFD and vnf_id in the NSD and custom type (only defined in the dummygatekeeper) + # each SAP gets a unique VNFD and vnf_id in the NSD and custom type (only defined in the dummygatekeeper) self.nsd["network_functions"].append( {"vnf_id": sap_docker_name, "vnf_name": sap_docker_name, "vnf_type": "sap_ext"}) @@ -545,7 +547,7 @@ class Service(object): if sap["type"] == "internal": vnfi = None if not GK_STANDALONE_MODE: - vnfi = self._start_vnfd(sap) + vnfi = self._start_vnfd(sap, sap['name']) self.instances[instance_uuid]["vnf_instances"].append(vnfi) elif sap["type"] == "external": @@ -582,9 +584,9 @@ class Service(object): src_id = src_sap_id # set intf name to None so the chaining function will choose the first one src_if_name = None - src_name = self.vnf_id2vnf_name[src_id] - dst_name = self.vnf_id2vnf_name[dst_id] - dst_vnfi = self._get_vnf_instance(instance_uuid, dst_name) + #src_name = self.vnf_id2vnf_name[src_id] + #dst_name = self.vnf_id2vnf_name[dst_id] + dst_vnfi = self._get_vnf_instance(instance_uuid, dst_id) if dst_vnfi is not None: # choose first ip address in sap subnet sap_net = self.saps[src_sap_id]['net'] @@ -596,9 +598,9 @@ class Service(object): dst_id = dst_sap_id # set intf name to None so the chaining function will choose the first one dst_if_name = None - src_name = self.vnf_id2vnf_name[src_id] - dst_name = self.vnf_id2vnf_name[dst_id] - src_vnfi = self._get_vnf_instance(instance_uuid, src_name) + #src_name = self.vnf_id2vnf_name[src_id] + #dst_name = self.vnf_id2vnf_name[dst_id] + src_vnfi = self._get_vnf_instance(instance_uuid, src_id) if src_vnfi is not None: sap_net = self.saps[dst_sap_id]['net'] sap_ip = "{0}/{1}".format(str(sap_net[2]), sap_net.prefixlen) @@ -612,11 +614,11 @@ class Service(object): src_id = src_sap_id if dst_sap_id in self.saps_int: dst_id = dst_sap_id - src_name = self.vnf_id2vnf_name[src_id] - dst_name = self.vnf_id2vnf_name[dst_id] + #src_name = self.vnf_id2vnf_name[src_id] + #dst_name = self.vnf_id2vnf_name[dst_id] # re-configure the VNFs IP assignment and ensure that a new subnet is used for each E-Link - src_vnfi = self._get_vnf_instance(instance_uuid, src_name) - dst_vnfi = self._get_vnf_instance(instance_uuid, dst_name) + src_vnfi = self._get_vnf_instance(instance_uuid, src_id) + dst_vnfi = self._get_vnf_instance(instance_uuid, dst_id) if src_vnfi is not None and dst_vnfi is not None: eline_net = ELINE_SUBNETS.pop(0) ip1 = "{0}/{1}".format(str(eline_net[1]), eline_net.prefixlen) @@ -632,8 +634,8 @@ class Service(object): vnf_src_interface=src_if_name, vnf_dst_interface=dst_if_name, bidirectional=BIDIRECTIONAL_CHAIN, cmd="add-flow", cookie=cookie, priority=10) LOG.debug( - "Setting up E-Line link. %s(%s:%s) -> %s(%s:%s)" % ( - src_name, src_id, src_if_name, dst_name, dst_id, dst_if_name)) + "Setting up E-Line link. (%s:%s) -> (%s:%s)" % ( + src_id, src_if_name, dst_id, dst_if_name)) def _connect_elans(self, elan_fwd_links, instance_uuid): @@ -679,16 +681,16 @@ class Service(object): src_docker_name = vnf_sap_id vnf_id = vnf_sap_id - vnf_name = self.vnf_id2vnf_name[vnf_id] + #vnf_name = self.vnf_id2vnf_name[vnf_id] LOG.debug( "Setting up E-LAN interface. %s(%s:%s) -> %s" % ( - vnf_name, vnf_id, intf_name, ip_address)) + vnf_id, intf_name, ip_address)) - if vnf_name in self.vnfds: + if vnf_id in self.vnfds: # re-configure the VNFs IP assignment and ensure that a new subnet is used for each E-LAN # E-LAN relies on the learning switch capability of Ryu which has to be turned on in the topology # (DCNetwork(controller=RemoteController, enable_learning=True)), so no explicit chaining is necessary. - vnfi = self._get_vnf_instance(instance_uuid, vnf_name) + vnfi = self._get_vnf_instance(instance_uuid, vnf_id) if vnfi is not None: self._vnf_reconfigure_network(vnfi, intf_name, ip_address) # add this vnf and interface to the E-LAN for tagging @@ -820,7 +822,7 @@ class Service(object): return int(cpu_period), int(cpu_quota) def check_ext_saps(self, intf_list): - # check if the list of interfacs contains an externl SAP + # check if the list of interfacs contains an external SAP saps_ext = [self.saps[sap]['name'] for sap in self.saps if self.saps[sap]["type"] == "external"] for intf_name in intf_list: vnf_id, vnf_interface, vnf_sap_docker_name = parse_interface(intf_name) @@ -843,7 +845,7 @@ class FirstDcPlacement(object): Placement: Always use one and the same data center from the GK.dcs dict. """ def place(self, nsd, vnfds, saps, dcs): - for name, vnfd in vnfds.iteritems(): + for id, vnfd in vnfds.iteritems(): vnfd["dc"] = list(dcs.itervalues())[0] @@ -854,7 +856,7 @@ class RoundRobinDcPlacement(object): def place(self, nsd, vnfds, saps, dcs): c = 0 dcs_list = list(dcs.itervalues()) - for name, vnfd in vnfds.iteritems(): + for id, vnfd in vnfds.iteritems(): vnfd["dc"] = dcs_list[c % len(dcs_list)] c += 1 # inc. c to use next DC @@ -868,7 +870,7 @@ class RoundRobinDcPlacementWithSAPs(object): # place vnfs c = 0 dcs_list = list(dcs.itervalues()) - for name, vnfd in vnfds.iteritems(): + for id, vnfd in vnfds.iteritems(): vnfd["dc"] = dcs_list[c % len(dcs_list)] c += 1 # inc. c to use next DC @@ -877,11 +879,6 @@ class RoundRobinDcPlacementWithSAPs(object): eline_fwd_links = [l for l in vlinks if (l["connectivity_type"] == "E-Line")] elan_fwd_links = [l for l in vlinks if (l["connectivity_type"] == "E-LAN")] - vnf_id2vnf_name = defaultdict(lambda: "NotExistingNode", - reduce(lambda x, y: dict(x, **y), - map(lambda d: {d["vnf_id"]: d["vnf_name"]}, - nsd["network_functions"]))) - # SAPs on E-Line links are placed on the same DC as the VNF on the E-Line for link in eline_fwd_links: src_id, src_if_name, src_sap_id = parse_interface(link["connection_points_reference"][0]) @@ -889,15 +886,15 @@ class RoundRobinDcPlacementWithSAPs(object): # check if there is a SAP in the link if src_sap_id in saps: - dst_vnf_name = vnf_id2vnf_name[dst_id] + #dst_vnf_name = vnf_id2vnf_name[dst_id] # get dc where connected vnf is mapped to - dc = vnfds[dst_vnf_name]['dc'] + dc = vnfds[dst_id]['dc'] saps[src_sap_id]['dc'] = dc if dst_sap_id in saps: - src_vnf_name = vnf_id2vnf_name[src_id] + #src_vnf_name = vnf_id2vnf_name[src_id] # get dc where connected vnf is mapped to - dc = vnfds[src_vnf_name]['dc'] + dc = vnfds[src_id]['dc'] saps[dst_sap_id]['dc'] = dc # SAPs on E-LANs are placed on a random DC