diff options
Diffstat (limited to 'lcm/ns/vnfs/create_vnfs.py')
| -rw-r--r-- | lcm/ns/vnfs/create_vnfs.py | 267 |
1 files changed, 267 insertions, 0 deletions
diff --git a/lcm/ns/vnfs/create_vnfs.py b/lcm/ns/vnfs/create_vnfs.py new file mode 100644 index 00000000..83bb4443 --- /dev/null +++ b/lcm/ns/vnfs/create_vnfs.py @@ -0,0 +1,267 @@ +# Copyright 2016 ZTE Corporation. +# +# Licensed under the Apache License, Version 2.0 (the "License"); +# you may not use this file except in compliance with the License. +# You may obtain a copy of the License at +# +# http://www.apache.org/licenses/LICENSE-2.0 +# +# Unless required by applicable law or agreed to in writing, software +# distributed under the License is distributed on an "AS IS" BASIS, +# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. +# See the License for the specific language governing permissions and +# limitations under the License. +import json +import logging +import traceback +import uuid +from threading import Thread +from lcm.ns.const import OWNER_TYPE + +from lcm.ns.vnfs.const import VNF_STATUS, NFVO_VNF_INST_TIMEOUT_SECOND, INST_TYPE, INST_TYPE_NAME +from lcm.ns.vnfs.wait_job import wait_job_finish +from lcm.pub.database.models import NfPackageModel, NfInstModel, NSInstModel, VmInstModel, VNFFGInstModel, VLInstModel +from lcm.pub.exceptions import NSLCMException +from lcm.pub.msapi.extsys import get_vnfm_by_id +from lcm.pub.msapi.resmgr import create_vnf, create_vnf_creation_info +from lcm.pub.msapi.vnfmdriver import send_nf_init_request +from lcm.pub.utils.jobutil import JOB_MODEL_STATUS, JobUtil, JOB_TYPE +from lcm.pub.utils.share_lock import do_biz_with_share_lock +from lcm.pub.utils.timeutil import now_time +from lcm.pub.utils.values import ignore_case_get + +logger = logging.getLogger(__name__) + + +def prepare_create_params(): + nf_inst_id = str(uuid.uuid4()) + NfInstModel(nfinstid=nf_inst_id, status=VNF_STATUS.INSTANTIATING, create_time=now_time(), + lastuptime=now_time()).save() + job_id = JobUtil.create_job(INST_TYPE_NAME.VNF, JOB_TYPE.CREATE_VNF, nf_inst_id) + JobUtil.add_job_status(job_id, 0, 'create vnf record in database.', 0) + return nf_inst_id, job_id + + +class CreateVnfs(Thread): + def __init__(self, data, nf_inst_id, job_id): + super(CreateVnfs, self).__init__() + self.data = data + self.nf_inst_id = nf_inst_id + self.job_id = job_id + self.ns_inst_id = '' + self.vnf_id = '' + self.vnfd_id = '' + self.ns_inst_name = '' + self.nsd_model = '' + self.vnfd_model = '' + self.vnf_inst_name = '' + self.vnfm_inst_id = '' + self.inputs = '' + self.nf_package_info = '' + self.vnfm_nf_inst_id = '' + self.vnfm_job_id = '' + self.vnfm_inst_name = '' + self.vim_id = '' + + def run(self): + try: + self.get_params() + self.check_nf_name_exist() + self.get_vnfd_id() + self.check_nf_package_valid() + self.send_nf_init_request_to_vnfm() + self.send_get_vnfm_request_to_extsys() + self.send_create_vnf_request_to_resmgr() + self.wait_vnfm_job_finish() + self.write_vnf_creation_info() + self.save_info_to_db() + except NSLCMException as e: + self.vnf_inst_failed_handle(e.message) + except Exception: + logger.error(traceback.format_exc()) + self.vnf_inst_failed_handle('unexpected exception') + + def get_params(self): + self.ns_inst_id = self.data['ns_instance_id'] + vnf_index = int(float(self.data['vnf_index'])) - 1 + additional_vnf_info = self.data['additional_param_for_vnf'][vnf_index] + self.vnf_id = ignore_case_get(additional_vnf_info, 'vnfProfileId') + additional_param = ignore_case_get(additional_vnf_info, 'additionalParam') + self.vnfm_inst_id = ignore_case_get(additional_param, 'vnfmInstanceId') + para = ignore_case_get(additional_param, 'inputs') + self.inputs = json.loads(para) if isinstance(para, (str, unicode)) else para + self.vim_id = ignore_case_get(additional_param, 'vimId') + self.vnfd_id = ignore_case_get(additional_param, 'vnfdId') + + def check_nf_name_exist(self): + is_exist = NfInstModel.objects.filter(nf_name=self.vnf_inst_name).exists() + if is_exist: + logger.error('The name of NF instance already exists.') + raise NSLCMException('The name of NF instance already exists.') + + def get_vnfd_id(self): + if self.vnfd_id: + logger.debug("need not get vnfd_id") + self.nsd_model={'vnfs': [], 'vls': [], 'vnffgs': []} + self.vnf_inst_name = self.vnfd_id + str(uuid.uuid4()) + self.vnf_inst_name = self.vnf_inst_name[:30] + return + ns_inst_info = NSInstModel.objects.get(id=self.ns_inst_id) + self.ns_inst_name = ns_inst_info.name + self.nsd_model = json.loads(ns_inst_info.nsd_model) + for vnf_info in self.nsd_model['vnfs']: + if self.vnf_id == vnf_info['vnf_id']: + self.vnfd_id = vnf_info['properties']['id'] + if 'name' not in vnf_info['properties']: + self.vnf_inst_name = self.vnfd_id + str(uuid.uuid4()) + else: + self.vnf_inst_name = vnf_info['properties']['name'] + str(uuid.uuid4()) + self.vnf_inst_name = self.vnf_inst_name[:30] + return + logger.error('Can not found vnf in nsd model') + raise NSLCMException('Can not found vnf in nsd model') + + def check_nf_package_valid(self): + nf_package_info = NfPackageModel.objects.filter(vnfdid=self.vnfd_id) + if not nf_package_info: + logger.info('NF package not exist.') + raise NSLCMException('NF package not exist.') + self.nf_package_info = nf_package_info[0] + self.vnfd_model = json.loads(self.nf_package_info.vnfdmodel) + + def get_virtual_link_info(self, vnf_id): + virtual_link_list, ext_virtual_link = [], [] + for vnf_info in self.nsd_model['vnfs']: + if vnf_info['vnf_id'] != vnf_id: + continue + for network_info in vnf_info['networks']: + vl_instance = VLInstModel.objects.get( + vldid=network_info['vl_id'], + ownertype=OWNER_TYPE.NS, + ownerid=self.ns_inst_id) + vl_instance_id = vl_instance.vlinstanceid + network_name, subnet_name = self.get_network_info_of_vl(network_info['vl_id']) + virtual_link_list.append({ + 'network_name': network_name, + 'key_name': network_info['key_name'], + 'subnetwork_name': subnet_name, + 'vl_instance_id': vl_instance_id + }) + ext_virtual_link.append({ + "vlInstanceId": vl_instance_id, + "resourceId": vl_instance.relatednetworkid, + "resourceSubnetId": vl_instance.relatedsubnetworkid, + "cpdId": self.get_cpd_id_of_vl(network_info['key_name']), + "vim": { + "vimid": vl_instance.vimid + } + }) + return virtual_link_list, ext_virtual_link + + def get_cpd_id_of_vl(self, vl_key): + for cpd in self.vnfd_model["vnf_exposed"]["external_cps"]: + if vl_key == cpd["key_name"]: + return cpd["cpd_id"] + return "" + + def get_network_info_of_vl(self, vl_id): + for vnf_info in self.nsd_model['vls']: + if vnf_info['vl_id'] == vl_id: + return vnf_info['properties']['network_name'], vnf_info['properties']['name'] + return '', '' + + def send_nf_init_request_to_vnfm(self): + virtual_link_list, ext_virtual_link = self.get_virtual_link_info(self.vnf_id) + req_param = json.JSONEncoder().encode({ + 'vnfInstanceName': self.vnf_inst_name, + 'vnfPackageId': self.nf_package_info.nfpackageid, + 'vnfDescriptorId': self.vnfd_id, + 'extVirtualLink': ext_virtual_link, + 'additionalParam': {"inputs": self.inputs, + "vimId": self.vim_id, + "extVirtualLinks": virtual_link_list}}) + rsp = send_nf_init_request(self.vnfm_inst_id, req_param) + self.vnfm_job_id = ignore_case_get(rsp, 'jobId') + self.vnfm_nf_inst_id = ignore_case_get(rsp, 'vnfInstanceId') + + NfInstModel.objects.filter(nfinstid=self.nf_inst_id).update( + mnfinstid=self.vnfm_nf_inst_id, + nf_name=self.vnf_inst_name, + vnf_id=self.vnf_id, + package_id=self.nf_package_info.nfpackageid, + vnfm_inst_id=self.vnfm_inst_id, + ns_inst_id=self.ns_inst_id, + version=self.nf_package_info.vnfversion, + vendor=self.nf_package_info.vendor, + vnfd_model=self.vnfd_model, + input_params=json.JSONEncoder().encode(self.inputs), + lastuptime=now_time()) + + def send_get_vnfm_request_to_extsys(self): + resp_body = get_vnfm_by_id(self.vnfm_inst_id) + self.vnfm_inst_name = ignore_case_get(resp_body, 'name') + + def send_create_vnf_request_to_resmgr(self): + pkg_vnfd = json.loads(self.nf_package_info.vnfdmodel) + data = { + 'nf_inst_id': self.nf_inst_id, + 'vnfm_nf_inst_id': self.vnfm_nf_inst_id, + 'vnf_inst_name': self.vnf_inst_name, + 'ns_inst_id': self.ns_inst_id, + 'ns_inst_name': self.ns_inst_name, + 'nf_inst_name': self.vnf_inst_name, + 'vnfm_inst_id': self.vnfm_inst_id, + 'vnfm_inst_name': self.vnfm_inst_name, + 'vnfd_name': pkg_vnfd['metadata'].get('name', 'undefined'), + 'vnfd_id': self.vnfd_id, + 'job_id': self.job_id, + 'nf_inst_status': VNF_STATUS.INSTANTIATING, + 'vnf_type': pkg_vnfd['metadata'].get('vnf_type', 'undefined'), + 'nf_package_id': self.nf_package_info.nfpackageid} + create_vnf(data) + + def wait_vnfm_job_finish(self): + ret = wait_job_finish(vnfm_id=self.vnfm_inst_id, vnfo_job_id=self.job_id, + vnfm_job_id=self.vnfm_job_id, progress_range=[10, 90], + timeout=NFVO_VNF_INST_TIMEOUT_SECOND) + + if ret != JOB_MODEL_STATUS.FINISHED: + logger.error('VNF instantiation failed on VNFM side.') + raise NSLCMException('VNF instantiation failed on VNFM side.') + + def write_vnf_creation_info(self): + logger.debug("write_vnf_creation_info start") + vm_inst_infos = VmInstModel.objects.filter(insttype=INST_TYPE.VNF, instid=self.nf_inst_id) + data = { + 'nf_inst_id': self.nf_inst_id, + 'ns_inst_id': self.ns_inst_id, + 'vnfm_inst_id': self.vnfm_inst_id, + 'vms': [{'vmId': vm_inst_info.resouceid, 'vmName': vm_inst_info.vmname, 'vmStatus': 'ACTIVE'} for + vm_inst_info in vm_inst_infos]} + create_vnf_creation_info(data) + logger.debug("write_vnf_creation_info end") + + def save_info_to_db(self): + logger.debug("save_info_to_db start") + do_biz_with_share_lock("set-vnflist-in-vnffginst-%s" % self.ns_inst_id, self.save_vnf_inst_id_in_vnffg) + NfInstModel.objects.filter(nfinstid=self.nf_inst_id).update(status=VNF_STATUS.ACTIVE, lastuptime=now_time()) + JobUtil.add_job_status(self.job_id, 100, 'vnf instantiation success', 0) + logger.debug("save_info_to_db end") + + def vnf_inst_failed_handle(self, error_msg): + logger.error('VNF instantiation failed, detail message: %s' % error_msg) + NfInstModel.objects.filter(nfinstid=self.nf_inst_id).update(status=VNF_STATUS.FAILED, + lastuptime=now_time()) + JobUtil.add_job_status(self.job_id, 255, 'VNF instantiation failed, detail message: %s' % error_msg, 0) + + def save_vnf_inst_id_in_vnffg(self): + vnffgs = self.nsd_model['vnffgs'] + for vnffg in vnffgs: + if self.vnf_id not in vnffg['members']: + continue + vnffg_inst_infos = VNFFGInstModel.objects.filter(vnffgdid=vnffg['vnffg_Id'], nsinstid=self.ns_inst_id) + if not vnffg_inst_infos: + logger.error('Vnffg instance not exist.') + raise NSLCMException('Vnffg instance not exist.') + vnf_list = vnffg_inst_infos[0].vnflist + vnffg_inst_infos.update(vnf_list=vnf_list + ',' + self.nf_inst_id if vnf_list else self.nf_inst_id) |