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, PortInstModel
  22 from lcm.pub.exceptions import NSLCMException
  23 from lcm.pub.msapi.aai import query_vnf_aai, delete_vnf_aai, query_vserver_aai, delete_vserver_aai
  24 from lcm.pub.msapi.extsys import split_vim_to_owner_region, get_vim_by_id
  25 from lcm.pub.msapi.vnfmdriver import send_nf_terminate_request
  26 from lcm.pub.utils.jobutil import JobUtil
  27 from lcm.jobs.enum import JOB_MODEL_STATUS
  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             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.args[0])
  66         except Exception as ex:
  67             logger.error(traceback.format_exc())
  68             self.set_job_err(ex.args[0])
  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             return None
  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 wait_vnfm_job_finish(self):
 123         if not self.vnfm_job_id:
 124             logger.warn("No Job, need not wait")
 125             return
 126         ret = wait_job_finish(vnfm_id=self.vnfm_inst_id,
 127                               vnfo_job_id=self.job_id,
 128                               vnfm_job_id=self.vnfm_job_id,
 129                               progress_range=[10, 90],
 130                               timeout=NFVO_VNF_INST_TIMEOUT_SECOND)
 131
 132         if ret != JOB_MODEL_STATUS.FINISHED:
 133             logger.error('VNF terminate failed on VNFM side.')
 134             raise NSLCMException('VNF terminate failed on VNFM side.')
 135
 136     def delete_subscription(self):
 137         try:
 138             SubscriptionDeletion(self.vnfm_inst_id, self.vnf_uuid).do_biz()
 139         except Exception as e:
 140             logger.error("delete_subscription failed: %s", e.args[0])
 141
 142     def delete_data_from_db(self):
 143         PortInstModel.objects.filter(instid=self.vnf_inst_id).delete()
 144         NfInstModel.objects.filter(nfinstid=self.vnf_inst_id).delete()
 145         VmInstModel.objects.filter(instid=self.vnf_inst_id).delete()
 146         OOFDataModel.objects.filter(service_resource_id=self.vnf_inst_id).delete()
 147         JobUtil.add_job_status(self.job_id, 100, 'vnf terminate success', 0)
 148
 149     def delete_vnf_in_aai(self):
 150         logger.debug("TerminateVnfs::delete_vnf_in_aai::delete vnf instance[%s] in aai." % self.vnf_inst_id)
 151         try:
 152             # query vnf instance in aai, get resource_version
 153             customer_info = query_vnf_aai(self.vnf_inst_id)
 154             resource_version = customer_info["resource-version"]
 155
 156             # delete vnf instance from aai
 157             resp_data, resp_status = delete_vnf_aai(self.vnf_inst_id, resource_version)
 158             logger.debug(
 159                 "Success to delete vnf[%s] from aai, resp_status: [%s]." % (self.vnf_inst_id, resp_status))
 160         except NSLCMException as e:
 161             logger.debug("Fail to delete vnf from aai[%s], detail message: %s" % (self.vnf_inst_id, e.args[0]))
 162         except:
 163             logger.error(traceback.format_exc())
 164
 165     def delete_vserver_in_aai(self):
 166         logger.debug("delete_vserver_in_aai start!")
 167         try:
 168             vm_inst_infos = VmInstModel.objects.filter(insttype=INST_TYPE.VNF, instid=self.vnf_inst_id)
 169             for vm_inst_info in vm_inst_infos:
 170                 vserver_id = vm_inst_info.resouceid
 171                 vim_id = vm_inst_info.vimid
 172                 cloud_owner, cloud_region_id = split_vim_to_owner_region(vim_id)
 173                 # query vim_info from aai, get tenant
 174                 vim_info = get_vim_by_id({"cloud_owner": cloud_owner, 'cloud_regionid': cloud_region_id})
 175                 tenant_id = vim_info["tenantId"]
 176
 177                 # query vserver instance in aai, get resource_version
 178                 vserver_info = query_vserver_aai(cloud_owner, cloud_region_id, tenant_id, vserver_id)
 179                 resource_version = vserver_info["resource-version"]
 180
 181                 # delete vserver instance from aai
 182                 resp_data, resp_status = delete_vserver_aai(cloud_owner, cloud_region_id,
 183                                                             tenant_id, vserver_id, resource_version)
 184                 logger.debug(
 185                     "Success to delete vserver instance[%s] from aai, resp_status: [%s]." %
 186                     (vserver_id, resp_status))
 187             logger.debug("delete_vserver_in_aai end!")
 188         except NSLCMException as e:
 189             logger.debug("Fail to delete vserver from aai, detail message: %s" % e.args[0])
 190         except:
 191             logger.error(traceback.format_exc())