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