lcm/ns/views/views.py

   1 # Copyright 2016-2017 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 import json
  15 import logging
  16 import traceback
  17
  18 from drf_yasg.utils import swagger_auto_schema
  19 from lcm.ns.biz.ns_get import GetNSInfoService
  20 from lcm.ns.biz.ns_heal import NSHealService
  21 from lcm.ns.biz.ns_manual_scale import NSManualScaleService
  22 from lcm.ns.biz.ns_terminate import TerminateNsService
  23 from rest_framework import status
  24 from rest_framework.response import Response
  25 from rest_framework.views import APIView
  26
  27 from lcm.ns.biz.ns_delete import DeleteNsService
  28 from lcm.ns.serializers.ns_serializers import HealNsReqSerializer
  29 from lcm.ns.serializers.ns_serializers import InstNsPostDealReqSerializer
  30 from lcm.ns.serializers.ns_serializers import ManualScaleNsReqSerializer
  31 from lcm.ns.serializers.ns_serializers import NsOperateJobSerializer
  32 from lcm.ns.serializers.ns_serializers import QueryNsRespSerializer
  33 from lcm.ns.serializers.ns_serializers import TerminateNsReqSerializer
  34 from lcm.pub.database.models import NSInstModel, ServiceBaseInfoModel
  35 from lcm.pub.exceptions import NSLCMException
  36 from lcm.pub.utils.jobutil import JobUtil, JOB_TYPE
  37 from lcm.pub.utils.restcall import req_by_msb
  38 from lcm.pub.utils.values import ignore_case_get
  39
  40 logger = logging.getLogger(__name__)
  41
  42
  43 class TerminateNSView(APIView):
  44     @swagger_auto_schema(
  45         request_body=TerminateNsReqSerializer(),
  46         responses={
  47             status.HTTP_202_ACCEPTED: NsOperateJobSerializer(),
  48             status.HTTP_500_INTERNAL_SERVER_ERROR: "Inner error"
  49         }
  50     )
  51     def post(self, request, ns_instance_id):
  52         try:
  53             logger.debug("Enter TerminateNSView::post %s", request.data)
  54             req_serializer = TerminateNsReqSerializer(data=request.data)
  55             if not req_serializer.is_valid():
  56                 raise NSLCMException(req_serializer.errors)
  57
  58             termination_type = ignore_case_get(request.data, 'terminationType')
  59             graceful_termination_timeout = ignore_case_get(request.data, 'gracefulTerminationTimeout')
  60             job_id = JobUtil.create_job("VNF", JOB_TYPE.TERMINATE_VNF, ns_instance_id)
  61             TerminateNsService(ns_instance_id, termination_type, graceful_termination_timeout, job_id).start()
  62
  63             resp_serializer = NsOperateJobSerializer(data={'jobId': job_id})
  64             if not resp_serializer.is_valid():
  65                 raise NSLCMException(resp_serializer.errors)
  66             logger.debug("Leave TerminateNSView::post ret=%s", resp_serializer.data)
  67             return Response(data=resp_serializer.data, status=status.HTTP_202_ACCEPTED)
  68         except Exception as e:
  69             logger.error("Exception in CreateNS: %s", e.message)
  70             return Response(data={'error': e.message}, status=status.HTTP_500_INTERNAL_SERVER_ERROR)
  71
  72
  73 class NSHealView(APIView):
  74     @swagger_auto_schema(
  75         request_body=HealNsReqSerializer(),
  76         responses={
  77             status.HTTP_202_ACCEPTED: NsOperateJobSerializer(),
  78             status.HTTP_500_INTERNAL_SERVER_ERROR: "Inner error"
  79         }
  80     )
  81     def post(self, request, ns_instance_id):
  82         try:
  83             logger.debug("Enter HealNSView::post %s", request.data)
  84             logger.debug("Enter HealNSView:: %s", ns_instance_id)
  85             req_serializer = HealNsReqSerializer(data=request.data)
  86             if not req_serializer.is_valid():
  87                 raise NSLCMException(req_serializer.errors)
  88
  89             job_id = JobUtil.create_job("VNF", JOB_TYPE.HEAL_VNF, ns_instance_id)
  90             NSHealService(ns_instance_id, request.data, job_id).start()
  91
  92             resp_serializer = NsOperateJobSerializer(data={'jobId': job_id})
  93             if not resp_serializer.is_valid():
  94                 raise NSLCMException(resp_serializer.errors)
  95
  96             logger.debug("Leave HealNSView::post ret=%s", resp_serializer.data)
  97             return Response(data=resp_serializer.data, status=status.HTTP_202_ACCEPTED)
  98         except Exception as e:
  99             logger.error("Exception in HealNSView: %s", e.message)
 100             return Response(data={'error': e.message}, status=status.HTTP_500_INTERNAL_SERVER_ERROR)
 101
 102
 103 class NSDetailView(APIView):
 104     @swagger_auto_schema(
 105         request_body=None,
 106         responses={
 107             status.HTTP_200_OK: QueryNsRespSerializer(help_text="NS instance", many=True),
 108             status.HTTP_500_INTERNAL_SERVER_ERROR: "Inner error",
 109             status.HTTP_404_NOT_FOUND: "Ns instance does not exist"
 110         }
 111     )
 112     def get(self, request, ns_instance_id):
 113         try:
 114             logger.debug("Enter NSDetailView::get ns(%s)", ns_instance_id)
 115             ns_filter = {"ns_inst_id": ns_instance_id}
 116             ret = GetNSInfoService(ns_filter).get_ns_info()
 117             if not ret:
 118                 return Response(status=status.HTTP_404_NOT_FOUND)
 119             logger.debug("Leave NSDetailView::get::ret=%s", ret)
 120             resp_serializer = QueryNsRespSerializer(data=ret, many=True)
 121             if not resp_serializer.is_valid():
 122                 raise NSLCMException(resp_serializer.errors)
 123             return Response(data=resp_serializer.data, status=status.HTTP_200_OK)
 124         except Exception as e:
 125             logger.error(traceback.format_exc())
 126             logger.error("Exception in GetNSDetail: %s", e.message)
 127             return Response(data={'error': e.message}, status=status.HTTP_500_INTERNAL_SERVER_ERROR)
 128
 129     @swagger_auto_schema(
 130         request_body=None,
 131         responses={
 132             status.HTTP_204_NO_CONTENT: 'successful',
 133             status.HTTP_500_INTERNAL_SERVER_ERROR: "Inner error"
 134         }
 135     )
 136     def delete(self, request, ns_instance_id):
 137         try:
 138             logger.debug("Enter NSDetailView::delete ns(%s)", ns_instance_id)
 139             DeleteNsService(ns_instance_id).do_biz()
 140             return Response(data={}, status=status.HTTP_204_NO_CONTENT)
 141         except Exception as e:
 142             logger.error(traceback.format_exc())
 143             logger.error("Exception in delete NS: %s", e.message)
 144             return Response(data={'error': e.message}, status=status.HTTP_500_INTERNAL_SERVER_ERROR)
 145
 146
 147 class NSInstPostDealView(APIView):
 148     @swagger_auto_schema(
 149         request_body=InstNsPostDealReqSerializer(help_text="NS instant post deal"),
 150         responses={
 151             status.HTTP_202_ACCEPTED: "NS instant post deal success",
 152             status.HTTP_500_INTERNAL_SERVER_ERROR: "Inner error"
 153         }
 154     )
 155     def post(self, request, ns_instance_id):
 156         logger.debug("Enter NSInstPostDealView::post %s, %s", request.data, ns_instance_id)
 157         ns_post_status = ignore_case_get(request.data, 'status')
 158         ns_status = 'ACTIVE' if ns_post_status == 'true' else 'FAILED'
 159         ns_opr_status = 'success' if ns_post_status == 'true' else 'failed'
 160         try:
 161             req_serializer = InstNsPostDealReqSerializer(data=request.data)
 162             if not req_serializer.is_valid():
 163                 raise NSLCMException(req_serializer.errors)
 164             NSInstModel.objects.filter(id=ns_instance_id).update(status=ns_status)
 165             ServiceBaseInfoModel.objects.filter(service_id=ns_instance_id).update(
 166                 active_status=ns_status, status=ns_opr_status)
 167             nsd_info = NSInstModel.objects.filter(id=ns_instance_id)
 168             nsd_id = nsd_info[0].nsd_id
 169             nsd_model = json.loads(nsd_info[0].nsd_model)
 170             if "policies" in nsd_model and nsd_model["policies"]:
 171                 policy = nsd_model["policies"][0]
 172                 if "properties" in policy and policy["properties"]:
 173                     file_url = ignore_case_get(policy["properties"][0], "drl_file_url")
 174                 else:
 175                     file_url = ""
 176                 self.send_policy_request(ns_instance_id, nsd_id, file_url)
 177         except:
 178             logger.error(traceback.format_exc())
 179             return Response(data={'error': 'Failed to update status of NS(%s)' % ns_instance_id},
 180                             status=status.HTTP_500_INTERNAL_SERVER_ERROR)
 181         logger.debug("*****NS INST %s, %s******", ns_status, ns_opr_status)
 182         return Response(data={'success': 'Update status of NS(%s) to %s' % (ns_instance_id, ns_status)},
 183                         status=status.HTTP_202_ACCEPTED)
 184
 185     def send_policy_request(self, ns_instance_id, nsd_id, file_url):
 186         input_data = {
 187             "nsid": ns_instance_id,
 188             "nsdid": nsd_id,
 189             "fileUri": file_url
 190         }
 191         req_param = json.JSONEncoder().encode(input_data)
 192         policy_engine_url = 'api/polengine/v1/policyinfo'
 193         ret = req_by_msb(policy_engine_url, "POST", req_param)
 194         if ret[0] != 0:
 195             logger.error("Failed to send ns policy req")
 196
 197
 198 class NSManualScaleView(APIView):
 199     @swagger_auto_schema(
 200         request_body=ManualScaleNsReqSerializer(help_text="NS manual scale"),
 201         responses={
 202             status.HTTP_202_ACCEPTED: NsOperateJobSerializer(),
 203             status.HTTP_500_INTERNAL_SERVER_ERROR: "Inner error"
 204         }
 205     )
 206     def post(self, request, ns_instance_id):
 207         logger.debug("Enter NSManualScaleView::post %s, %s", request.data, ns_instance_id)
 208         job_id = JobUtil.create_job("NS", JOB_TYPE.MANUAL_SCALE_VNF, ns_instance_id)
 209         try:
 210             req_serializer = ManualScaleNsReqSerializer(data=request.data)
 211             if not req_serializer.is_valid():
 212                 raise NSLCMException(req_serializer.errors)
 213
 214             NSManualScaleService(ns_instance_id, request.data, job_id).start()
 215
 216             resp_serializer = NsOperateJobSerializer(data={'jobId': job_id})
 217             if not resp_serializer.is_valid():
 218                 raise NSLCMException(resp_serializer.errors)
 219
 220             return Response(data=resp_serializer.data, status=status.HTTP_202_ACCEPTED)
 221         except Exception as e:
 222             logger.error(traceback.format_exc())
 223             JobUtil.add_job_status(job_id, 255, 'NS scale failed: %s' % e.message)
 224             return Response(data={'error': 'NS scale failed: %s' % ns_instance_id},
 225                             status=status.HTTP_500_INTERNAL_SERVER_ERROR)