lcm/ns/vnfs/terminate_nfs.py

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