lcm/ns_vnfs/biz/terminate_nfs.py

   1 # Copyright 2016-2018 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
  15 import json
  16 import logging
  17 import threading
  18 import traceback
  19
  20 from lcm.pub.config.config import REPORT_TO_AAI
  21 from lcm.pub.database.models import NfInstModel, VmInstModel, OOFDataModel
  22 from lcm.pub.exceptions import NSLCMException
  23 from lcm.pub.msapi import resmgr
  24 from lcm.pub.msapi.aai import query_vnf_aai, delete_vnf_aai, query_vserver_aai, delete_vserver_aai
  25 from lcm.pub.msapi.extsys import split_vim_to_owner_region, get_vim_by_id
  26 from lcm.pub.msapi.vnfmdriver import send_nf_terminate_request
  27 from lcm.pub.utils.jobutil import JOB_MODEL_STATUS, JobUtil
  28 from lcm.pub.utils.values import ignore_case_get
  29 from lcm.ns_vnfs.const import NFVO_VNF_INST_TIMEOUT_SECOND
  30 from lcm.ns_vnfs.enum import VNF_STATUS, INST_TYPE
  31 from lcm.ns_vnfs.biz.wait_job import wait_job_finish
  32 from lcm.ns_vnfs.biz.subscribe import SubscriptionDeletion
  33
  34 logger = logging.getLogger(__name__)
  35
  36
  37 class TerminateVnfs(threading.Thread):
  38     def __init__(self, data, vnf_inst_id, job_id):
  39         threading.Thread.__init__(self)
  40         self.vnf_inst_id = vnf_inst_id
  41         self.job_id = job_id
  42         self.vnfm_inst_id = ''
  43         self.vnf_uuid = ''
  44         self.vnfm_job_id = ''
  45         self.terminationType = data['terminationType']
  46         self.gracefulTerminationTimeout = data['gracefulTerminationTimeout']
  47         if not self.gracefulTerminationTimeout:
  48             self.gracefulTerminationTimeout = 120
  49         else:
  50             self.gracefulTerminationTimeout = int(self.gracefulTerminationTimeout)
  51
  52         self.initdata()
  53
  54     def run(self):
  55         try:
  56             self.check_nf_valid()
  57             self.send_nf_terminate_to_vnfmDriver()
  58             self.wait_vnfm_job_finish()
  59             self.send_terminate_vnf_to_resMgr()
  60             if REPORT_TO_AAI:
  61                 self.delete_vserver_in_aai()
  62                 self.delete_vnf_in_aai()
  63             self.delete_subscription()
  64             self.delete_data_from_db()
  65         except NSLCMException as e:
  66             self.set_job_err(e.message)
  67         except Exception as ex:
  68             logger.error(traceback.format_exc())
  69             self.set_job_err(ex.message)
  70
  71     def set_vnf_status(self, vnf_inst_info):
  72         vnf_status = vnf_inst_info.status
  73         if (vnf_status == VNF_STATUS.TERMINATING):
  74             logger.info('[VNF terminate] VNF is dealing by other application,try again later.')
  75             raise NSLCMException('[VNF terminate] VNF is dealing by other application,try again later.')
  76         else:
  77             vnf_inst_info.status = VNF_STATUS.TERMINATING
  78             vnf_inst_info.save()
  79
  80     def get_vnf_inst(self):
  81         vnf_inst = NfInstModel.objects.filter(nfinstid=self.vnf_inst_id)
  82         if not vnf_inst.exists():
  83             logger.warning('[VNF terminate] Vnf terminate [%s] does not exist.' % self.vnf_inst_id)
  84             return None
  85         return vnf_inst[0]
  86
  87     def add_progress(self, progress, status_decs, error_code=""):
  88         JobUtil.add_job_status(self.job_id, progress, status_decs, error_code)
  89
  90     def initdata(self):
  91         vnf_inst_info = self.get_vnf_inst()
  92         if not vnf_inst_info:
  93             self.add_progress(100, "TERM_VNF_NOT_EXIST_SUCCESS", "finished")
  94         self.add_progress(2, "GET_VNF_INST_SUCCESS")
  95         self.vnfm_inst_id = vnf_inst_info.vnfm_inst_id
  96         self.vnf_uuid = vnf_inst_info.mnfinstid
  97         if not self.vnf_uuid:
  98             self.add_progress(100, "TERM_VNF_NOT_EXIST_SUCCESS", "finished")
  99
 100     def check_nf_valid(self):
 101         vnf_inst = NfInstModel.objects.filter(nfinstid=self.vnf_inst_id)
 102         if not vnf_inst.exists():
 103             logger.warning('[VNF terminate] Vnf instance [%s] is not exist.' % self.vnf_inst_id)
 104             raise NSLCMException('[VNF terminate] Vnf instance is not exist.')
 105         if not vnf_inst:
 106             self.add_progress(100, "TERM_VNF_NOT_EXIST_SUCCESS", "finished")
 107             raise NSLCMException('[VNF terminate] Vnf instance is not exist.')
 108         self.set_vnf_status(vnf_inst[0])
 109
 110     def set_job_err(self, error_msg):
 111         logger.error('VNF Terminate failed, detail message: %s' % error_msg)
 112         NfInstModel.objects.filter(nfinstid=self.vnf_inst_id).update(status=VNF_STATUS.FAILED)
 113         JobUtil.add_job_status(self.job_id, 255, 'VNF Terminate failed, detail message: %s' % error_msg, 0)
 114
 115     def send_nf_terminate_to_vnfmDriver(self):
 116         req_param = json.JSONEncoder().encode({
 117             'terminationType': self.terminationType,
 118             'gracefulTerminationTimeout': self.gracefulTerminationTimeout})
 119         rsp = send_nf_terminate_request(self.vnfm_inst_id, self.vnf_uuid, req_param)
 120         self.vnfm_job_id = ignore_case_get(rsp, 'jobId')
 121
 122     def send_terminate_vnf_to_resMgr(self):
 123         resmgr.terminate_vnf(self.vnf_inst_id)
 124
 125     def wait_vnfm_job_finish(self):
 126         if not self.vnfm_job_id:
 127             logger.warn("No Job, need not wait")
 128             return
 129         ret = wait_job_finish(vnfm_id=self.vnfm_inst_id,
 130                               vnfo_job_id=self.job_id,
 131                               vnfm_job_id=self.vnfm_job_id,
 132                               progress_range=[10, 90],
 133                               timeout=NFVO_VNF_INST_TIMEOUT_SECOND)
 134
 135         if ret != JOB_MODEL_STATUS.FINISHED:
 136             logger.error('VNF terminate failed on VNFM side.')
 137             raise NSLCMException('VNF terminate failed on VNFM side.')
 138
 139     def delete_subscription(self):
 140         SubscriptionDeletion(self.vnfm_inst_id, self.vnf_inst_id).do_biz()
 141
 142     def delete_data_from_db(self):
 143         NfInstModel.objects.filter(nfinstid=self.vnf_inst_id).delete()
 144         VmInstModel.objects.filter(instid=self.vnf_inst_id).delete()
 145         OOFDataModel.objects.filter(service_resource_id=self.vnf_inst_id).delete()
 146         JobUtil.add_job_status(self.job_id, 100, 'vnf terminate success', 0)
 147
 148     def delete_vnf_in_aai(self):
 149         logger.debug("TerminateVnfs::delete_vnf_in_aai::delete vnf instance[%s] in aai." % self.vnf_inst_id)
 150         try:
 151             # query vnf instance in aai, get resource_version
 152             customer_info = query_vnf_aai(self.vnf_inst_id)
 153             resource_version = customer_info["resource-version"]
 154
 155             # delete vnf instance from aai
 156             resp_data, resp_status = delete_vnf_aai(self.vnf_inst_id, resource_version)
 157             logger.debug(
 158                 "Success to delete vnf[%s] from aai, resp_status: [%s]." % (self.vnf_inst_id, resp_status))
 159         except NSLCMException as e:
 160             logger.debug("Fail to delete vnf from aai[%s], detail message: %s" % (self.vnf_inst_id, e.message))
 161         except:
 162             logger.error(traceback.format_exc())
 163
 164     def delete_vserver_in_aai(self):
 165         logger.debug("delete_vserver_in_aai start!")
 166         try:
 167             vm_inst_infos = VmInstModel.objects.filter(insttype=INST_TYPE.VNF, instid=self.vnf_inst_id)
 168             for vm_inst_info in vm_inst_infos:
 169                 vserver_id = vm_inst_info.resouceid
 170                 vim_id = vm_inst_info.vimid
 171                 cloud_owner, cloud_region_id = split_vim_to_owner_region(vim_id)
 172                 # query vim_info from aai, get tenant
 173                 vim_info = get_vim_by_id(vim_id)
 174                 tenant_id = vim_info["tenantId"]
 175
 176                 # query vserver instance in aai, get resource_version
 177                 vserver_info = query_vserver_aai(cloud_owner, cloud_region_id, tenant_id, vserver_id)
 178                 resource_version = vserver_info["resource-version"]
 179
 180                 # delete vserver instance from aai
 181                 resp_data, resp_status = delete_vserver_aai(cloud_owner, cloud_region_id,
 182                                                             tenant_id, vserver_id, resource_version)
 183                 logger.debug(
 184                     "Success to delete vserver instance[%s] from aai, resp_status: [%s]." %
 185                     (vserver_id, resp_status))
 186             logger.debug("delete_vserver_in_aai end!")
 187         except NSLCMException as e:
 188             logger.debug("Fail to delete vserver from aai, detail message: %s" % e.message)
 189         except:
 190             logger.error(traceback.format_exc())