lcm/ns/vnfs/create_vnfs.py

   1 # Copyright 2016 ZTE Corporation.
   2 #
   3 # Licensed under the Apache License, Version 2.0 (the "License");
   4 # you may not use this file except in compliance with the License.
   5 # You may obtain a copy of the License at
   6 #
   7 #         http://www.apache.org/licenses/LICENSE-2.0
   8 #
   9 # Unless required by applicable law or agreed to in writing, software
  10 # distributed under the License is distributed on an "AS IS" BASIS,
  11 # WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
  12 # See the License for the specific language governing permissions and
  13 # limitations under the License.
  14 import json
  15 import logging
  16 import traceback
  17 import uuid
  18 from threading import Thread
  19 from lcm.ns.const import OWNER_TYPE
  20
  21 from lcm.ns.vnfs.const import VNF_STATUS, NFVO_VNF_INST_TIMEOUT_SECOND, INST_TYPE, INST_TYPE_NAME
  22 from lcm.ns.vnfs.wait_job import wait_job_finish
  23 from lcm.pub.database.models import NfPackageModel, NfInstModel, NSInstModel, VmInstModel, VNFFGInstModel, VLInstModel
  24 from lcm.pub.exceptions import NSLCMException
  25 from lcm.pub.msapi.extsys import get_vnfm_by_id
  26 from lcm.pub.msapi.resmgr import create_vnf, create_vnf_creation_info
  27 from lcm.pub.msapi.vnfmdriver import send_nf_init_request
  28 from lcm.pub.utils.jobutil import JOB_MODEL_STATUS, JobUtil, JOB_TYPE
  29 from lcm.pub.utils.share_lock import do_biz_with_share_lock
  30 from lcm.pub.utils.timeutil import now_time
  31 from lcm.pub.utils.values import ignore_case_get
  32
  33 logger = logging.getLogger(__name__)
  34
  35
  36 def prepare_create_params():
  37     nf_inst_id = str(uuid.uuid4())
  38     NfInstModel(nfinstid=nf_inst_id, status=VNF_STATUS.INSTANTIATING, create_time=now_time(),
  39                 lastuptime=now_time()).save()
  40     job_id = JobUtil.create_job(INST_TYPE_NAME.VNF, JOB_TYPE.CREATE_VNF, nf_inst_id)
  41     JobUtil.add_job_status(job_id, 0, 'create vnf record in database.', 0)
  42     return nf_inst_id, job_id
  43
  44
  45 class CreateVnfs(Thread):
  46     def __init__(self, data, nf_inst_id, job_id):
  47         super(CreateVnfs, self).__init__()
  48         self.data = data
  49         self.nf_inst_id = nf_inst_id
  50         self.job_id = job_id
  51         self.ns_inst_id = ''
  52         self.vnf_id = ''
  53         self.vnfd_id = ''
  54         self.ns_inst_name = ''
  55         self.nsd_model = ''
  56         self.vnfd_model = ''
  57         self.vnf_inst_name = ''
  58         self.vnfm_inst_id = ''
  59         self.inputs = ''
  60         self.nf_package_info = ''
  61         self.vnfm_nf_inst_id = ''
  62         self.vnfm_job_id = ''
  63         self.vnfm_inst_name = ''
  64         self.vim_id = ''
  65
  66     def run(self):
  67         try:
  68             self.get_params()
  69             self.check_nf_name_exist()
  70             self.get_vnfd_id()
  71             self.check_nf_package_valid()
  72             self.send_nf_init_request_to_vnfm()
  73             self.send_get_vnfm_request_to_extsys()
  74             self.send_create_vnf_request_to_resmgr()
  75             self.wait_vnfm_job_finish()
  76             self.write_vnf_creation_info()
  77             self.save_info_to_db()
  78         except NSLCMException as e:
  79             self.vnf_inst_failed_handle(e.message)
  80         except Exception:
  81             logger.error(traceback.format_exc())
  82             self.vnf_inst_failed_handle('unexpected exception')
  83
  84     def get_params(self):
  85         self.ns_inst_id = self.data['ns_instance_id']
  86         vnf_index = int(float(self.data['vnf_index'])) - 1
  87         additional_vnf_info = self.data['additional_param_for_vnf'][vnf_index]
  88         self.vnf_id = ignore_case_get(additional_vnf_info, 'vnfProfileId')
  89         additional_param = ignore_case_get(additional_vnf_info, 'additionalParam')
  90         self.vnfm_inst_id = ignore_case_get(additional_param, 'vnfmInstanceId')
  91         para = ignore_case_get(additional_param, 'inputs')
  92         self.inputs = json.loads(para) if isinstance(para, (str, unicode)) else para
  93         self.vim_id = ignore_case_get(additional_param, 'vimId')
  94         self.vnfd_id = ignore_case_get(additional_param, 'vnfdId')
  95
  96     def check_nf_name_exist(self):
  97         is_exist = NfInstModel.objects.filter(nf_name=self.vnf_inst_name).exists()
  98         if is_exist:
  99             logger.error('The name of NF instance already exists.')
 100             raise NSLCMException('The name of NF instance already exists.')
 101
 102     def get_vnfd_id(self):
 103         if self.vnfd_id:
 104             logger.debug("need not get vnfd_id")
 105             self.nsd_model={'vnfs': [], 'vls': [], 'vnffgs': []}
 106             self.vnf_inst_name = self.vnfd_id + str(uuid.uuid4())
 107             self.vnf_inst_name = self.vnf_inst_name[:30]
 108             return
 109         ns_inst_info = NSInstModel.objects.get(id=self.ns_inst_id)
 110         self.ns_inst_name = ns_inst_info.name
 111         self.nsd_model = json.loads(ns_inst_info.nsd_model)
 112         for vnf_info in self.nsd_model['vnfs']:
 113             if self.vnf_id == vnf_info['vnf_id']:
 114                 self.vnfd_id = vnf_info['properties']['id']
 115                 if 'name' not in vnf_info['properties']:
 116                     self.vnf_inst_name = self.vnfd_id + str(uuid.uuid4())
 117                 else:
 118                     self.vnf_inst_name = vnf_info['properties']['name'] + str(uuid.uuid4())
 119                 self.vnf_inst_name = self.vnf_inst_name[:30]
 120                 return
 121         logger.error('Can not found vnf in nsd model')
 122         raise NSLCMException('Can not found vnf in nsd model')
 123
 124     def check_nf_package_valid(self):
 125         nf_package_info = NfPackageModel.objects.filter(vnfdid=self.vnfd_id)
 126         if not nf_package_info:
 127             logger.info('NF package not exist.')
 128             raise NSLCMException('NF package not exist.')
 129         self.nf_package_info = nf_package_info[0]
 130         self.vnfd_model = json.loads(self.nf_package_info.vnfdmodel)
 131
 132     def get_virtual_link_info(self, vnf_id):
 133         virtual_link_list, ext_virtual_link = [], []
 134         for vnf_info in self.nsd_model['vnfs']:
 135             if vnf_info['vnf_id'] != vnf_id:
 136                 continue
 137             for network_info in vnf_info['networks']:
 138                 vl_instance = VLInstModel.objects.get(
 139                     vldid=network_info['vl_id'],
 140                     ownertype=OWNER_TYPE.NS,
 141                     ownerid=self.ns_inst_id)
 142                 vl_instance_id = vl_instance.vlinstanceid
 143                 network_name, subnet_name = self.get_network_info_of_vl(network_info['vl_id'])
 144                 virtual_link_list.append({
 145                     'network_name': network_name,
 146                     'key_name': network_info['key_name'],
 147                     'subnetwork_name': subnet_name,
 148                     'vl_instance_id': vl_instance_id
 149                 })
 150                 ext_virtual_link.append({
 151                     "vlInstanceId": vl_instance_id,
 152                     "resourceId": vl_instance.relatednetworkid,
 153                     "resourceSubnetId": vl_instance.relatedsubnetworkid,
 154                     "cpdId": self.get_cpd_id_of_vl(network_info['key_name']),
 155                     "vim": {
 156                         "vimid": vl_instance.vimid
 157                     }
 158                 })
 159         return virtual_link_list, ext_virtual_link
 160
 161     def get_cpd_id_of_vl(self, vl_key):
 162         for cpd in self.vnfd_model["vnf_exposed"]["external_cps"]:
 163             if vl_key == cpd["key_name"]:
 164                 return cpd["cpd_id"]
 165         return ""
 166
 167     def get_network_info_of_vl(self, vl_id):
 168         for vnf_info in self.nsd_model['vls']:
 169             if vnf_info['vl_id'] == vl_id:
 170                 return vnf_info['properties']['network_name'], vnf_info['properties']['name']
 171         return '', ''
 172
 173     def send_nf_init_request_to_vnfm(self):
 174         virtual_link_list, ext_virtual_link = self.get_virtual_link_info(self.vnf_id)
 175         req_param = json.JSONEncoder().encode({
 176             'vnfInstanceName': self.vnf_inst_name,
 177             'vnfPackageId': self.nf_package_info.nfpackageid,
 178             'vnfDescriptorId': self.vnfd_id,
 179             'extVirtualLink': ext_virtual_link,
 180             'additionalParam': {"inputs": self.inputs,
 181                 "vimId": self.vim_id,
 182                 "extVirtualLinks": virtual_link_list}})
 183         rsp = send_nf_init_request(self.vnfm_inst_id, req_param)
 184         self.vnfm_job_id = ignore_case_get(rsp, 'jobId')
 185         self.vnfm_nf_inst_id = ignore_case_get(rsp, 'vnfInstanceId')
 186
 187         NfInstModel.objects.filter(nfinstid=self.nf_inst_id).update(
 188             mnfinstid=self.vnfm_nf_inst_id,
 189             nf_name=self.vnf_inst_name,
 190             vnf_id=self.vnf_id,
 191             package_id=self.nf_package_info.nfpackageid,
 192             vnfm_inst_id=self.vnfm_inst_id,
 193             ns_inst_id=self.ns_inst_id,
 194             version=self.nf_package_info.vnfversion,
 195             vendor=self.nf_package_info.vendor,
 196             vnfd_model=self.vnfd_model,
 197             input_params=json.JSONEncoder().encode(self.inputs),
 198             lastuptime=now_time())
 199
 200     def send_get_vnfm_request_to_extsys(self):
 201         resp_body = get_vnfm_by_id(self.vnfm_inst_id)
 202         self.vnfm_inst_name = ignore_case_get(resp_body, 'name')
 203
 204     def send_create_vnf_request_to_resmgr(self):
 205         pkg_vnfd = json.loads(self.nf_package_info.vnfdmodel)
 206         data = {
 207             'nf_inst_id': self.nf_inst_id,
 208             'vnfm_nf_inst_id': self.vnfm_nf_inst_id,
 209             'vnf_inst_name': self.vnf_inst_name,
 210             'ns_inst_id': self.ns_inst_id,
 211             'ns_inst_name': self.ns_inst_name,
 212             'nf_inst_name': self.vnf_inst_name,
 213             'vnfm_inst_id': self.vnfm_inst_id,
 214             'vnfm_inst_name': self.vnfm_inst_name,
 215             'vnfd_name': pkg_vnfd['metadata'].get('name', 'undefined'),
 216             'vnfd_id': self.vnfd_id,
 217             'job_id': self.job_id,
 218             'nf_inst_status': VNF_STATUS.INSTANTIATING,
 219             'vnf_type': pkg_vnfd['metadata'].get('vnf_type', 'undefined'),
 220             'nf_package_id': self.nf_package_info.nfpackageid}
 221         create_vnf(data)
 222
 223     def wait_vnfm_job_finish(self):
 224         ret = wait_job_finish(vnfm_id=self.vnfm_inst_id, vnfo_job_id=self.job_id,
 225             vnfm_job_id=self.vnfm_job_id, progress_range=[10, 90],
 226             timeout=NFVO_VNF_INST_TIMEOUT_SECOND)
 227
 228         if ret != JOB_MODEL_STATUS.FINISHED:
 229             logger.error('VNF instantiation failed on VNFM side.')
 230             raise NSLCMException('VNF instantiation failed on VNFM side.')
 231
 232     def write_vnf_creation_info(self):
 233         logger.debug("write_vnf_creation_info start")
 234         vm_inst_infos = VmInstModel.objects.filter(insttype=INST_TYPE.VNF, instid=self.nf_inst_id)
 235         data = {
 236             'nf_inst_id': self.nf_inst_id,
 237             'ns_inst_id': self.ns_inst_id,
 238             'vnfm_inst_id': self.vnfm_inst_id,
 239             'vms': [{'vmId': vm_inst_info.resouceid, 'vmName': vm_inst_info.vmname, 'vmStatus': 'ACTIVE'} for
 240                     vm_inst_info in vm_inst_infos]}
 241         create_vnf_creation_info(data)
 242         logger.debug("write_vnf_creation_info end")
 243
 244     def save_info_to_db(self):
 245         logger.debug("save_info_to_db start")
 246         do_biz_with_share_lock("set-vnflist-in-vnffginst-%s" % self.ns_inst_id, self.save_vnf_inst_id_in_vnffg)
 247         NfInstModel.objects.filter(nfinstid=self.nf_inst_id).update(status=VNF_STATUS.ACTIVE, lastuptime=now_time())
 248         JobUtil.add_job_status(self.job_id, 100, 'vnf instantiation success', 0)
 249         logger.debug("save_info_to_db end")
 250
 251     def vnf_inst_failed_handle(self, error_msg):
 252         logger.error('VNF instantiation failed, detail message: %s' % error_msg)
 253         NfInstModel.objects.filter(nfinstid=self.nf_inst_id).update(status=VNF_STATUS.FAILED,
 254                                                                     lastuptime=now_time())
 255         JobUtil.add_job_status(self.job_id, 255, 'VNF instantiation failed, detail message: %s' % error_msg, 0)
 256
 257     def save_vnf_inst_id_in_vnffg(self):
 258         vnffgs = self.nsd_model['vnffgs']
 259         for vnffg in vnffgs:
 260             if self.vnf_id not in vnffg['members']:
 261                 continue
 262             vnffg_inst_infos = VNFFGInstModel.objects.filter(vnffgdid=vnffg['vnffg_Id'], nsinstid=self.ns_inst_id)
 263             if not vnffg_inst_infos:
 264                 logger.error('Vnffg instance not exist.')
 265                 raise NSLCMException('Vnffg instance not exist.')
 266             vnf_list = vnffg_inst_infos[0].vnflist
 267             vnffg_inst_infos.update(vnf_list=vnf_list + ',' + self.nf_inst_id if vnf_list else self.nf_inst_id)