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