lcm/ns/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 os
  17 import traceback
  18
  19 from rest_framework import status
  20 from rest_framework.response import Response
  21 from rest_framework.views import APIView
  22
  23 from lcm.ns.ns_create import CreateNSService
  24 from lcm.ns.ns_get import GetNSInfoService
  25 from lcm.ns.ns_instant import InstantNSService
  26 from lcm.ns.ns_manual_scale import NSManualScaleService
  27 from lcm.ns.ns_heal import NSHealService
  28 from lcm.ns.ns_terminate import TerminateNsService, DeleteNsService
  29 from lcm.pub.database.models import NSInstModel, ServiceBaseInfoModel
  30 from lcm.pub.utils.jobutil import JobUtil, JOB_TYPE
  31 from lcm.pub.utils.values import ignore_case_get
  32 from lcm.pub.utils.restcall import req_by_msb
  33 from lcm.pub.exceptions import NSLCMException
  34
  35 logger = logging.getLogger(__name__)
  36
  37
  38 class CreateNSView(APIView):
  39     def get(self, request):
  40         logger.debug("CreateNSView::get")
  41         filter=None
  42         csarId = ignore_case_get(request.META, 'csarId')
  43         if csarId:
  44             filter ={
  45             "csarId":csarId
  46             }
  47
  48         ret = GetNSInfoService(filter).get_ns_info()
  49         logger.debug("CreateNSView::get::ret=%s", ret)
  50         return Response(data=ret, status=status.HTTP_200_OK)
  51
  52     def post(self, request):
  53         logger.debug("Enter CreateNS: %s", request.data)
  54         nsd_id = ignore_case_get(request.data, 'nsdId')
  55         ns_name = ignore_case_get(request.data, 'nsName')
  56         description = ignore_case_get(request.data, 'description')
  57         try:
  58             ns_inst_id = CreateNSService(nsd_id, ns_name, description).do_biz()
  59         except Exception as e:
  60             logger.error("Exception in CreateNS: %s", e.message)
  61             return Response(data={'error': e.message}, status=status.HTTP_500_INTERNAL_SERVER_ERROR)
  62         logger.debug("CreateNSView::post::ret={'nsInstanceId':%s}", ns_inst_id)
  63         return Response(data={'nsInstanceId': ns_inst_id}, status=status.HTTP_201_CREATED)
  64
  65
  66 class NSInstView(APIView):
  67     def post(self, request, ns_instance_id):
  68         ack = InstantNSService(ns_instance_id, request.data).do_biz()
  69         logger.debug("Leave NSInstView::post::ack=%s", ack)
  70         return Response(data=ack['data'], status=ack['status'])
  71
  72
  73 class TerminateNSView(APIView):
  74     def post(self, request, ns_instance_id):
  75         logger.debug("Enter TerminateNSView::post %s", request.data)
  76         termination_type = ignore_case_get(request.data, 'terminationType')
  77         graceful_termination_timeout = ignore_case_get(request.data, 'gracefulTerminationTimeout')
  78         job_id = JobUtil.create_job("VNF", JOB_TYPE.TERMINATE_VNF, ns_instance_id)
  79         try:
  80             TerminateNsService(ns_instance_id, termination_type, graceful_termination_timeout, job_id).start()
  81         except Exception as e:
  82             logger.error("Exception in CreateNS: %s", e.message)
  83             return Response(data={'error': e.message}, status=status.HTTP_500_INTERNAL_SERVER_ERROR)
  84         ret = {'jobId': job_id}
  85         logger.debug("Leave TerminateNSView::post ret=%s", ret)
  86         return Response(data=ret, status=status.HTTP_202_ACCEPTED)
  87
  88
  89 class NSHealView(APIView):
  90     def post(self, request, ns_instance_id):
  91         logger.debug("Enter HealNSView::post %s", request.data)
  92         job_id = JobUtil.create_job("VNF", JOB_TYPE.HEAL_VNF, ns_instance_id)
  93         try:
  94             NSHealService(ns_instance_id, request.data, job_id).start()
  95         except Exception as e:
  96             logger.error("Exception in HealNSView: %s", e.message)
  97             return Response(data={'error': e.message}, status=status.HTTP_500_INTERNAL_SERVER_ERROR)
  98         ret = {'jobId': job_id}
  99         logger.debug("Leave HealNSView::post ret=%s", ret)
 100         return Response(data=ret, status=status.HTTP_202_ACCEPTED)
 101
 102
 103 class NSDetailView(APIView):
 104     def get(self, request, ns_instance_id):
 105         logger.debug("Enter NSDetailView::get ns(%s)", ns_instance_id)
 106         ns_filter ={"ns_inst_id":ns_instance_id}
 107         ret = GetNSInfoService(ns_filter).get_ns_info()
 108         if not ret:
 109             return Response(status=status.HTTP_404_NOT_FOUND)
 110         logger.debug("Leave NSDetailView::get::ret=%s", ret)
 111         return Response(data=ret, status=status.HTTP_200_OK)
 112
 113     def delete(self, request, ns_instance_id):
 114         logger.debug("Enter NSDetailView::delete ns(%s)", ns_instance_id)
 115         DeleteNsService(ns_instance_id).do_biz()
 116         return Response(data={}, status=status.HTTP_204_NO_CONTENT)
 117
 118
 119 class SwaggerJsonView(APIView):
 120     def get(self, request):
 121         json_file = os.path.join(os.path.dirname(__file__), 'swagger.json')
 122         f = open(json_file)
 123         json_data = json.JSONDecoder().decode(f.read())
 124         f.close()
 125         return Response(json_data)
 126
 127
 128 class NSInstPostDealView(APIView):
 129
 130
 131     def post(self, request, ns_instance_id):
 132         logger.debug("Enter NSInstPostDealView::post %s, %s", request.data, ns_instance_id)
 133         ns_post_status = ignore_case_get(request.data, 'status')
 134         ns_status = 'ACTIVE' if ns_post_status == 'true' else 'FAILED'
 135         ns_opr_status = 'success' if ns_post_status == 'true' else 'failed'
 136         try:
 137             NSInstModel.objects.filter(id=ns_instance_id).update(status=ns_status)
 138             ServiceBaseInfoModel.objects.filter(service_id=ns_instance_id).update(
 139                 active_status=ns_status, status=ns_opr_status)
 140             nsd_info = NSInstModel.objects.filter(id=ns_instance_id)
 141             nsd_id = nsd_info[0].nsd_id
 142             nsd_model = json.loads(nsd_info[0].nsd_model)
 143             if "policies" in nsd_model and nsd_model["policies"]:
 144                 policy = nsd_model["policies"][0]
 145                 if "properties" in policy and policy["properties"]:
 146                     file_url = ignore_case_get(policy["properties"][0], "drl_file_url")
 147                 else:
 148                     file_url = ""
 149                 self.send_policy_request(ns_instance_id, nsd_id, file_url)
 150         except:
 151             logger.error(traceback.format_exc())
 152             return Response(data={'error': 'Failed to update status of NS(%s)' % ns_instance_id},
 153                             status=status.HTTP_500_INTERNAL_SERVER_ERROR)
 154         logger.debug("*****NS INST %s, %s******", ns_status, ns_opr_status)
 155         return Response(data={'success': 'Update status of NS(%s) to %s' % (ns_instance_id, ns_status)},
 156                         status=status.HTTP_202_ACCEPTED)
 157
 158     def send_policy_request(self,ns_instance_id, nsd_id, file_url):
 159         input_data = {
 160             "nsid": ns_instance_id,
 161             "nsdid": nsd_id,
 162             "fileUri":file_url
 163         }
 164         req_param = json.JSONEncoder().encode(input_data)
 165         policy_engine_url = 'api/polengine/v1/policyinfo'
 166         ret = req_by_msb(policy_engine_url, "POST", req_param)
 167         if ret[0] != 0:
 168             logger.error("Failed to send ns policy req")
 169             #raise NSLCMException('Failed to send ns policy req)')
 170
 171
 172 class NSManualScaleView(APIView):
 173     def post(self, request, ns_instance_id):
 174         logger.debug("Enter NSManualScaleView::post %s, %s", request.data, ns_instance_id)
 175         job_id = JobUtil.create_job("NS", JOB_TYPE.MANUAL_SCALE_VNF, ns_instance_id)
 176         try:
 177             NSManualScaleService(ns_instance_id, request.data, job_id).start()
 178         except Exception as e:
 179             logger.error(traceback.format_exc())
 180             JobUtil.add_job_status(job_id, 255, 'NS scale failed: %s' % e.message)
 181             return Response(data={'error': 'NS scale failed: %s' % ns_instance_id},
 182                             status=status.HTTP_500_INTERNAL_SERVER_ERROR)
 183         return Response(data={'jobId': job_id}, status=status.HTTP_202_ACCEPTED)