lcm/ns_vls/biz/delete_vls.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 json
  16 import logging
  17 import traceback
  18
  19 from lcm.pub.config.config import REPORT_TO_AAI
  20 from lcm.pub.database.models import VLInstModel, VNFFGInstModel
  21 from lcm.pub.exceptions import NSLCMException
  22 from lcm.pub.msapi import extsys
  23 from lcm.pub.msapi.aai import query_network_aai, delete_network_aai
  24 from lcm.pub.nfvi.vim import vimadaptor
  25
  26 logger = logging.getLogger(__name__)
  27
  28
  29 class DeleteVls(object):
  30     def __init__(self, vl_inst_id):
  31         self.vl_inst_id = vl_inst_id
  32         self.ns_inst_id = ""
  33
  34     def do(self):
  35         try:
  36             vl_inst_info = VLInstModel.objects.filter(vlinstanceid=self.vl_inst_id)
  37             if not vl_inst_info:
  38                 logger.info("vl inst id(%s) is not exist or has been already deleted" % self.vl_inst_id)
  39                 return {"result": 0, "detail": "vl is not exist or has been already deleted"}
  40             self.ns_inst_id = vl_inst_info[0].ownerid
  41             # vim_id = vl_inst_info[0].vimid
  42             vim_id = json.JSONDecoder().decode(vl_inst_info[0].vimid) if isinstance(vl_inst_info[0].vimid, str) \
  43                 else vl_inst_info[0].vimid
  44             subnetwork_id_list = vl_inst_info[0].relatedsubnetworkid.split(",")
  45             network_id = vl_inst_info[0].relatednetworkid
  46             self.delete_vl_from_vim(vim_id, subnetwork_id_list, network_id)
  47             if REPORT_TO_AAI:
  48                 self.delete_network_and_subnet_in_aai()
  49             self.delete_vl_from_db(vl_inst_info)
  50             return {"result": 0, "detail": "delete vl success"}
  51         except NSLCMException as e:
  52             return self.exception_handle(e)
  53         except Exception as e:
  54             logger.error(traceback.format_exc())
  55             return self.exception_handle(e)
  56
  57     def exception_handle(self, e):
  58         detail = "vl delete failed, detail message: %s" % e.args[0]
  59         logger.error(detail)
  60         return {"result": 0, "detail": detail}
  61
  62     def delete_vl_from_vim(self, vim_id, subnetwork_id_list, network_id):
  63         vim_resp_body = extsys.get_vim_by_id(vim_id)
  64         data = {
  65             "vimid": vim_id,
  66             "vimtype": vim_resp_body["type"],
  67             "url": vim_resp_body["url"],
  68             "user": vim_resp_body["userName"],
  69             "passwd": vim_resp_body["password"],
  70             "tenant": vim_resp_body["tenant"]}
  71         vim_api = vimadaptor.VimAdaptor(data)
  72         for subnetwork_id in subnetwork_id_list:
  73             vim_api.delete_subnet(subnet_id=subnetwork_id)
  74         vim_api.delete_network(network_id=network_id)
  75
  76     def delete_vl_inst_id_in_vnffg(self):
  77         for vnffg_info in VNFFGInstModel.objects.filter(nsinstid=self.ns_inst_id):
  78             new_vl_id_list = ""
  79             for old_vl_id in vnffg_info.vllist.split(","):
  80                 if old_vl_id != self.vl_inst_id:
  81                     new_vl_id_list += old_vl_id + ","
  82             new_vl_id_list = new_vl_id_list[:-1]
  83             VNFFGInstModel.objects.filter(vnffginstid=vnffg_info.vnffginstid).update(vllist=new_vl_id_list)
  84
  85     def delete_network_and_subnet_in_aai(self):
  86         logger.debug("DeleteVls::delete_network_in_aai[%s] in aai.", self.vl_inst_id)
  87         try:
  88             # query network in aai, get resource_version
  89             customer_info = query_network_aai(self.vl_inst_id)
  90             resource_version = customer_info.get("resource-version")
  91
  92             # delete network from aai
  93             resp_data, resp_status = delete_network_aai(self.vl_inst_id, resource_version)
  94             logger.debug("Delete network[%s] from aai successfully, status: %s", self.vl_inst_id, resp_status)
  95         except NSLCMException as e:
  96             logger.debug("Fail to delete network[%s] from aai: %s", self.vl_inst_id, e.args[0])
  97         except Exception as e:
  98             logger.error("Exception occurs when delete network[%s] from aai: %s", self.vl_inst_id, e.args[0])
  99             logger.error(traceback.format_exc())
 100
 101     def delete_vl_from_db(self, vl_inst_info):
 102         # do_biz_with_share_lock("delete-vllist-in-vnffg-%s" % self.ns_inst_id, self.delete_vl_inst_id_in_vnffg)
 103         self.delete_vl_inst_id_in_vnffg()
 104         vl_inst_info.delete()