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