lcm/lcm/nf/biz/terminate_vnf.py

   1 # Copyright 2017 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 traceback
  18 from threading import Thread
  19
  20 from lcm.nf.const import VNF_STATUS, RESOURCE_MAP
  21 from lcm.pub.database.models import (
  22     NfInstModel, VmInstModel, NetworkInstModel,
  23     StorageInstModel, PortInstModel, VNFCInstModel,
  24     FlavourInstModel, SubNetworkInstModel
  25 )
  26 from lcm.pub.exceptions import NFLCMException
  27 from lcm.pub.msapi.gvnfmdriver import prepare_notification_data
  28 from lcm.pub.msapi.gvnfmdriver import notify_lcm_to_nfvo
  29 from lcm.pub.utils.jobutil import JobUtil
  30 from lcm.pub.utils.timeutil import now_time
  31 from lcm.pub.utils.notificationsutil import NotificationsUtil
  32 from lcm.pub.utils.values import ignore_case_get
  33 from lcm.pub.vimapi import adaptor
  34 from lcm.nf.biz.grant_vnf import grant_resource
  35 from lcm.nf.const import CHANGE_TYPE, GRANT_TYPE, OPERATION_TYPE
  36 from lcm.nf.const import OPERATION_TASK
  37 from lcm.nf.const import OPERATION_STATE_TYPE
  38 from .operate_vnf_lcm_op_occ import VnfLcmOpOcc
  39
  40 logger = logging.getLogger(__name__)
  41
  42
  43 class TerminateVnf(Thread):
  44     def __init__(self, data, nf_inst_id, job_id):
  45         super(TerminateVnf, self).__init__()
  46         self.data = data
  47         self.nf_inst_id = nf_inst_id
  48         self.job_id = job_id
  49         self.terminationType = ignore_case_get(
  50             self.data,
  51             "terminationType"
  52         )
  53         self.gracefulTerminationTimeout = ignore_case_get(
  54             self.data,
  55             "gracefulTerminationTimeout"
  56         )
  57         self.inst_resource = {
  58             'volumn': [],
  59             'network': [],
  60             'subnet': [],
  61             'port': [],
  62             'flavor': [],
  63             'vm': []
  64         }
  65         self.grant_type = GRANT_TYPE.TERMINATE
  66         self.lcm_op_occ = VnfLcmOpOcc(
  67             vnf_inst_id=nf_inst_id,
  68             lcm_op_id=job_id,
  69             operation=OPERATION_TYPE.SCALE,
  70             task=OPERATION_TASK.SCALE
  71         )
  72
  73     def run(self):
  74         try:
  75             if self.term_pre():
  76                 vdus = VmInstModel.objects.filter(
  77                     instid=self.nf_inst_id,
  78                     is_predefined=1
  79                 )
  80                 self.lcm_op_occ.notify_lcm(OPERATION_STATE_TYPE.STARTING)
  81                 apply_result = grant_resource(
  82                     data=self.data,
  83                     nf_inst_id=self.nf_inst_id,
  84                     job_id=self.job_id,
  85                     grant_type=self.grant_type,
  86                     vdus=vdus
  87                 )
  88                 self.lcm_op_occ.notify_lcm(OPERATION_STATE_TYPE.PROCESSING)
  89                 logger.info("Grant resource end, response: %s" % apply_result)
  90                 JobUtil.add_job_status(
  91                     self.job_id,
  92                     20,
  93                     'Nf terminating grant_resource finish'
  94                 )
  95                 self.query_inst_resource()
  96                 self.query_notify_data()
  97                 self.delete_resource()
  98                 self.lcm_notify()
  99             JobUtil.add_job_status(
 100                 self.job_id,
 101                 100,
 102                 "Terminate Vnf success."
 103             )
 104         except NFLCMException as e:
 105             self.vnf_term_failed_handle(e.message)
 106         except Exception as e:
 107             logger.error(e.message)
 108             logger.error(traceback.format_exc())
 109             self.vnf_term_failed_handle(e.message)
 110
 111     def term_pre(self):
 112         vnf_insts = NfInstModel.objects.filter(nfinstid=self.nf_inst_id)
 113         if not vnf_insts.exists():
 114             logger.warn('VnfInst(%s) does not exist' % self.nf_inst_id)
 115             return False
 116         if self.terminationType == 'GRACEFUL' and not self.gracefulTerminationTimeout:
 117             logger.warn("Set Graceful default termination timeout = 60")
 118             self.gracefulTerminationTimeout = 60
 119         NfInstModel.objects.filter(nfinstid=self.nf_inst_id).update(status=VNF_STATUS.TERMINATING)
 120         JobUtil.add_job_status(self.job_id, 10, 'Nf terminating pre-check finish')
 121         logger.info("Nf terminating pre-check finish")
 122         return True
 123
 124     def query_inst_resource(self):
 125         logger.info('Query resource begin')
 126         for resource_type in RESOURCE_MAP.keys():
 127             resource_table = globals().get(resource_type + 'InstModel')
 128             resource_insts = resource_table.objects.filter(instid=self.nf_inst_id)
 129             for resource_inst in resource_insts:
 130                 if not resource_inst.resourceid:
 131                     continue
 132                 self.inst_resource[RESOURCE_MAP.get(resource_type)].append(self.get_resource(resource_inst))
 133         logger.info('Query resource end, resource=%s' % self.inst_resource)
 134
 135     def get_resource(self, resource):
 136         return {
 137             "vim_id": resource.vimid,
 138             "tenant_id": resource.tenant,
 139             "res_id": resource.resourceid,
 140             "is_predefined": resource.is_predefined
 141         }
 142
 143     def query_notify_data(self):
 144         self.notify_data = prepare_notification_data(
 145             self.nf_inst_id,
 146             self.job_id,
 147             CHANGE_TYPE.REMOVED,
 148             OPERATION_TYPE.TERMINATE
 149         )
 150         NetworkInstModel.objects.filter(instid=self.nf_inst_id)
 151         StorageInstModel.objects.filter(instid=self.nf_inst_id)
 152         PortInstModel.objects.filter(instid=self.nf_inst_id)
 153         VNFCInstModel.objects.filter(instid=self.nf_inst_id)
 154         FlavourInstModel.objects.filter(instid=self.nf_inst_id)
 155         SubNetworkInstModel.objects.filter(instid=self.nf_inst_id)
 156
 157     def delete_resource(self):
 158         logger.info('Rollback resource begin')
 159         adaptor.delete_vim_res(
 160             self.inst_resource,
 161             self.do_notify_delete
 162         )
 163         logger.info('Rollback resource complete')
 164
 165     def do_notify_delete(self, res_type, res_id):
 166         logger.debug('Deleting [%s] resource, resourceid [%s]' % (res_type, res_id))
 167         resource_type = RESOURCE_MAP.keys()[RESOURCE_MAP.values().index(res_type)]
 168         resource_table = globals().get(resource_type + 'InstModel')
 169         resource_table.objects.filter(instid=self.nf_inst_id, resourceid=res_id).delete()
 170
 171     def lcm_notify(self):
 172         NfInstModel.objects.filter(nfinstid=self.nf_inst_id).update(
 173             status='NOT_INSTANTIATED',
 174             lastuptime=now_time()
 175         )
 176         logger.info('Send notify request to nfvo')
 177         try:
 178             resp = notify_lcm_to_nfvo(json.dumps(self.notify_data))
 179             logger.info('Lcm notify end, response: %s' % resp)
 180             NotificationsUtil().send_notification(self.notify_data)
 181         except Exception as e:
 182             logger.error("Lcm terminate notify failed: %s", e.message)
 183
 184     def vnf_term_failed_handle(self, error_msg):
 185         logger.error('VNF termination failed, detail message: %s' % error_msg)
 186         NfInstModel.objects.filter(nfinstid=self.nf_inst_id).update(lastuptime=now_time())
 187         self.lcm_op_occ.notify_lcm(OPERATION_STATE_TYPE.FAILED, error_msg)
 188         JobUtil.add_job_status(self.job_id, 255, error_msg)