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# Copyright 2017 ZTE Corporation.
#
# Licensed under the Apache License, Version 2.0 (the "License");
# you may not use this file except in compliance with the License.
# You may obtain a copy of the License at
#
# http://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or agreed to in writing, software
# distributed under the License is distributed on an "AS IS" BASIS,
# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
# See the License for the specific language governing permissions and
# limitations under the License.
import json
import logging
import traceback
from threading import Thread
from lcm.nf.const import VNF_STATUS, RESOURCE_MAP
from lcm.pub.database.models import (
NfInstModel, VmInstModel, NetworkInstModel,
StorageInstModel, PortInstModel, VNFCInstModel,
FlavourInstModel, SubNetworkInstModel
)
from lcm.pub.exceptions import NFLCMException
from lcm.pub.msapi.gvnfmdriver import prepare_notification_data, notify_lcm_to_nfvo
from lcm.pub.utils.jobutil import JobUtil
from lcm.pub.utils.timeutil import now_time
from lcm.pub.utils.values import ignore_case_get
from lcm.pub.vimapi import adaptor
from lcm.nf.biz.grant_vnf import grant_resource
from lcm.nf.const import GRANT_TYPE
logger = logging.getLogger(__name__)
class TerminateVnf(Thread):
def __init__(self, data, nf_inst_id, job_id):
super(TerminateVnf, self).__init__()
self.data = data
self.nf_inst_id = nf_inst_id
self.job_id = job_id
self.terminationType = ignore_case_get(self.data, "terminationType")
self.gracefulTerminationTimeout = ignore_case_get(self.data, "gracefulTerminationTimeout")
self.inst_resource = {'volumn': [], 'network': [], 'subnet': [], 'port': [], 'flavor': [], 'vm': []}
self.grant_type = GRANT_TYPE.TERMINATE
def run(self):
try:
if self.term_pre():
vdus = VmInstModel.objects.filter(instid=self.nf_inst_id, is_predefined=1)
apply_result = grant_resource(data=self.data, nf_inst_id=self.nf_inst_id, job_id=self.job_id,
grant_type=self.grant_type, vdus=vdus)
logger.info("Grant resource end, response: %s" % apply_result)
JobUtil.add_job_status(self.job_id, 20, 'Nf terminating grant_resource finish')
self.query_inst_resource()
self.query_notify_data()
self.delete_resource()
self.lcm_notify()
JobUtil.add_job_status(self.job_id, 100, "Terminate Vnf success.")
except NFLCMException as e:
self.vnf_term_failed_handle(e.message)
except Exception as e:
logger.error(e.message)
self.vnf_term_failed_handle(traceback.format_exc())
def term_pre(self):
vnf_insts = NfInstModel.objects.filter(nfinstid=self.nf_inst_id)
if not vnf_insts.exists():
logger.warn('VnfInst(%s) does not exist' % self.nf_inst_id)
return False
if self.terminationType == 'GRACEFUL' and not self.gracefulTerminationTimeout:
logger.warn("Set Graceful default termination timeout = 60")
self.gracefulTerminationTimeout = 60
NfInstModel.objects.filter(nfinstid=self.nf_inst_id).update(status=VNF_STATUS.TERMINATING)
JobUtil.add_job_status(self.job_id, 10, 'Nf terminating pre-check finish')
logger.info("Nf terminating pre-check finish")
return True
def query_inst_resource(self):
logger.info('Query resource begin')
for resource_type in RESOURCE_MAP.keys():
resource_table = globals().get(resource_type + 'InstModel')
resource_insts = resource_table.objects.filter(instid=self.nf_inst_id)
for resource_inst in resource_insts:
if not resource_inst.resourceid:
continue
self.inst_resource[RESOURCE_MAP.get(resource_type)].append(self.get_resource(resource_inst))
logger.info('Query resource end, resource=%s' % self.inst_resource)
def get_resource(self, resource):
return {
"vim_id": resource.vimid,
"tenant_id": resource.tenant,
"res_id": resource.resourceid,
"is_predefined": resource.is_predefined
}
def query_notify_data(self):
self.notify_data = prepare_notification_data(self.nf_inst_id, self.job_id, "RMOVED")
NetworkInstModel.objects.filter(instid=self.nf_inst_id)
StorageInstModel.objects.filter(instid=self.nf_inst_id)
PortInstModel.objects.filter(instid=self.nf_inst_id)
VNFCInstModel.objects.filter(instid=self.nf_inst_id)
FlavourInstModel.objects.filter(instid=self.nf_inst_id)
SubNetworkInstModel.objects.filter(instid=self.nf_inst_id)
def delete_resource(self):
logger.info('Rollback resource begin')
adaptor.delete_vim_res(self.inst_resource, self.do_notify_delete)
logger.info('Rollback resource complete')
def do_notify_delete(self, res_type, res_id):
logger.error('Deleting [%s] resource, resourceid [%s]' % (res_type, res_id))
resource_type = RESOURCE_MAP.keys()[RESOURCE_MAP.values().index(res_type)]
resource_table = globals().get(resource_type + 'InstModel')
resource_table.objects.filter(instid=self.nf_inst_id, resourceid=res_id).delete()
def lcm_notify(self):
NfInstModel.objects.filter(nfinstid=self.nf_inst_id).update(status='NOT_INSTANTIATED', lastuptime=now_time())
logger.info('Send notify request to nfvo')
resp = notify_lcm_to_nfvo(json.dumps(self.notify_data))
logger.info('Lcm notify end, response: %s' % resp)
def vnf_term_failed_handle(self, error_msg):
logger.error('VNF termination failed, detail message: %s' % error_msg)
NfInstModel.objects.filter(nfinstid=self.nf_inst_id).update(status='failed', lastuptime=now_time())
JobUtil.add_job_status(self.job_id, 255, error_msg)
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