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