--- /dev/null
+# Copyright (C) 2018 Verizon. All Rights Reserved.
+#
+# 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 uuid
+import traceback
+from threading import Thread
+
+from lcm.nf.biz import common
+from lcm.nf.biz.grant_vnf import grant_resource
+from lcm.nf.const import VNF_STATUS, GRANT_TYPE, CHANGE_TYPE
+from lcm.nf.const import RESOURCE_MAP, OPERATION_STATE_TYPE
+from lcm.nf.const import INSTANTIATION_STATE
+from lcm.pub.database.models import NfInstModel
+from lcm.pub.database.models import VNFCInstModel, PortInstModel
+from lcm.pub.database.models import VmInstModel
+from lcm.pub.exceptions import NFLCMException
+from lcm.pub.utils.notificationsutil import NotificationsUtil, prepare_notification
+from lcm.pub.utils.values import ignore_case_get
+from lcm.pub.utils.jobutil import JobUtil
+from lcm.pub.utils.timeutil import now_time
+from lcm.pub.vimapi import adaptor
+
+logger = logging.getLogger(__name__)
+
+DEFAULT_STEPS = 1
+
+
+class ScaleVnf(Thread):
+ def __init__(self, data, nf_inst_id, job_id):
+ super(ScaleVnf, self).__init__()
+ self.data = data
+ self.nf_inst_id = nf_inst_id
+ self.job_id = job_id
+ self.vnf_insts = NfInstModel.objects.filter(nfinstid=self.nf_inst_id)
+
+ def run(self):
+ try:
+ self.heal_pre()
+ self.apply_grant()
+ self.do_operation()
+ JobUtil.add_job_status(self.job_id,
+ 100,
+ "Scale Vnf success.")
+ self.vnf_insts.update(status=INSTANTIATION_STATE.INSTANTIATED,
+ lastuptime=now_time())
+ except NFLCMException as e:
+ logger.error(e.message)
+ self.vnf_scale_failed_handle(e.message)
+ except Exception as e:
+ logger.error(e.message)
+ logger.error(traceback.format_exc())
+ self.vnf_scale_failed_handle(e.message)
+
+ def scale_pre(self):
+ self.scale_type = self.data.get("type")
+ self.aspect_id = self.data.get("aspectId")
+ self.number_of_steps = int(self.data.get("numberOfSteps", DEFAULT_STEPS))
+ self.additional_params = self.data.get("additionalParams", {})
+ self.is_scale_in = (self.scale_type == GRANT_TYPE.SCALE_IN)
+ self.vnfd_info = json.loads(self.vnf_insts[0].vnfd_model)
+ self.step_delta = self.get_scale_step_delta()
+ self.target_vdu, self.step_inst_num = self.get_vdu_scale_aspect_deltas()
+ self.scale_inst_num = self.number_of_steps * self.step_inst_num
+ self.min_instance_num, self.max_instance_num = self.get_instance_range()
+ self.check_if_can_scale()
+ self.scale_out_resource = {}
+
+ def apply_grant(self):
+ logger.debug("Start scale apply grant")
+ vdus = ignore_case_get(self.vnfd_info, "vdus")
+ scale_vdus = [vdu for vdu in vdus if vdu["vdu_id"] == self.target_vdu]
+ scale_vdus = scale_vdus * self.scale_inst_num
+ grant_result = grant_resource(data=self.data,
+ nf_inst_id=self.nf_inst_id,
+ job_id=self.job_id,
+ grant_type=self.scale_type,
+ vdus=scale_vdus)
+ logger.debug("Scale Grant result: %s", grant_result)
+ self.set_location(grant_result)
+
+ def do_operation(self):
+ logger.debug("Start %s VNF resource", self.scale_type)
+ logger.debug('VnfdInfo = %s' % self.vnfd_info)
+
+ if self.is_scale_in:
+ self.affected_vnfcs = []
+ self.scale_in_resource = self.get_scale_in_resource(self.affected_vnfcs)
+ adaptor.delete_vim_res(self.scale_in_resource, self.do_notify_del_vim_res)
+ else:
+ self.scale_out_resource = {
+ 'volumn': [],
+ 'network': [],
+ 'subnet': [],
+ 'port': [],
+ 'flavor': [],
+ 'vm': []
+ }
+ self.vnfd_info["volume_storages"] = []
+ self.vnfd_info["vls"] = []
+ self.vnfd_info["cps"] = self.vnfd_info["cps"] * self.scale_inst_num
+ for cp in self.vnfd_info["cps"]:
+ # TODO: how to set name for scale_out cp
+ cp["properties"]["name"] = cp["cp_id"] + str(uuid.uuid4())
+ cp_inst = PortInstModel.objects.filter(name__startswith=cp["cp_id"]).first()
+ if cp_inst:
+ cp["networkId"] = cp_inst.networkid
+ cp["subnetId"] = cp_inst.subnetworkid
+ else:
+ raise NFLCMException("CP(%s) does not exist" % cp["cp_id"])
+ self.vnfd_info["vdus"] = self.vnfd_info["vdus"] * self.scale_inst_num
+ for vdu in self.vnfd_info["vdus"]:
+ # TODO: how to set name for scale_out vdu
+ vdu["properties"]["name"] = vdu["properties"]["name"] + str(uuid.uuid4())
+
+ vim_cache = json.loads(self.vnf_insts[0].vimInfo)
+ res_cache = json.loads(self.vnf_insts[0].resInfo)
+ adaptor.create_vim_res(self.vnfd_info,
+ self.do_notify_create_vim_res,
+ vim_cache=vim_cache,
+ res_cache=res_cache)
+ self.vnf_insts.update(vimInfo=json.dumps(vim_cache),
+ resInfo=json.dumps(res_cache))
+ logger.debug("%s VNF resource finish", self.scale_type)
+
+ def send_notification(self):
+ data = prepare_notification(nfinstid=self.nf_inst_id,
+ jobid=self.job_id,
+ operation=self.op_type,
+ operation_state=OPERATION_STATE_TYPE.COMPLETED)
+
+ # TODO: need set changedExtConnectivity for data
+ if self.is_scale_in:
+ data["affectedVnfcs"] = self.affected_vnfcs
+ else:
+ for vm in self.scale_out_resource["vm"]:
+ self.set_affected_vnfcs(data["affectedVnfcs"], vm["res_id"])
+
+ logger.debug('Notify request data = %s' % data)
+ NotificationsUtil().send_notification(data)
+
+ def rollback_operation(self):
+ if self.is_scale_in:
+ # SCALE_IN operaion does not support rollback
+ return
+ adaptor.delete_vim_res(self.scale_out_resource, self.do_notify_del_vim_res)
+
+ def set_location(self, grant_result):
+ vim_connections = ignore_case_get(grant_result, "vimConnections")
+ access_info = ignore_case_get(vim_connections[0], "accessInfo")
+ tenant = ignore_case_get(access_info, "tenant")
+ vimid = ignore_case_get(vim_connections[0], "vimId")
+
+ for resource_type in ['vdus', 'vls', 'cps', 'volume_storages']:
+ for resource in ignore_case_get(self.vnfd_info, resource_type):
+ if "location_info" not in resource["properties"]:
+ resource["properties"]["location_info"] = {}
+ resource["properties"]["location_info"]["vimid"] = vimid
+ resource["properties"]["location_info"]["tenant"] = tenant
+
+ def do_notify_create_vim_res(self, res_type, ret):
+ logger.debug('Scaling out [%s] resource' % res_type)
+ resource_save_method = getattr(common, res_type + '_save')
+ resource_save_method(self.job_id, self.nf_inst_id, ret)
+ self.scale_out_resource[res_type].append(self.gen_del_resource(ret))
+
+ def do_notify_del_vim_res(self, res_type, res_id):
+ logger.debug('Scaling in [%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()
+ if res_type == "vm":
+ VNFCInstModel.objects.filter(instid=self.nf_inst_id, vmid=res_id).delete()
+
+ def get_scale_in_resource(self, affected_vnfcs):
+ scale_in_resource = {
+ 'volumn': [],
+ 'network': [],
+ 'subnet': [],
+ 'port': [],
+ 'flavor': [],
+ 'vm': []
+ }
+ scale_in_vms = VmInstModel.objects.filter(instid=self.nf_inst_id)
+ vms_count = scale_in_vms.count()
+ for index in range(self.scale_inst_num):
+ vm_index = vms_count - index - 1
+ scale_in_resource["vm"].append(self.gen_del_resource(scale_in_vms[vm_index]))
+ self.set_affected_vnfcs(affected_vnfcs, scale_in_vms[vm_index].resourceid)
+ return scale_in_resource
+
+ def gen_del_resource(self, res):
+ is_dict = isinstance(res, dict)
+ return {
+ "vim_id": res["vimId"] if is_dict else res.vimid,
+ "tenant_id": res["tenantId"] if is_dict else res.tenant,
+ "res_id": res["id"] if is_dict else res.resourceid,
+ "is_predefined": res["returnCode"] if is_dict else res.is_predefined
+ }
+
+ def get_scale_step_delta(self):
+ for policy in self.vnfd_info.get("policies", []):
+ if policy.get("type") != "tosca.policies.nfv.ScalingAspects":
+ continue
+ aspects = policy["properties"]["aspects"]
+ if self.aspect_id in aspects:
+ return aspects.get(self.aspect_id).get("step_deltas")[0]
+ raise NFLCMException("Aspect(%s) does not exist" % self.aspect_id)
+
+ def get_vdu_scale_aspect_deltas(self):
+ for policy in self.vnfd_info.get("policies", []):
+ if policy.get("type") != "tosca.policies.nfv.VduScalingAspectDeltas":
+ continue
+ target = policy.get("targets")[0]
+ deltas = policy["properties"]["deltas"]
+ if self.step_delta in deltas:
+ num = int(deltas.get(self.step_delta).get("number_of_instances"))
+ return target, num
+ raise NFLCMException("Aspect step delta(%s) does not exist" % self.step_delta)
+
+ def get_instance_range(self):
+ for vdu in self.vnfd_info["vdus"]:
+ if vdu["vdu_id"] == self.target_vdu:
+ vdu_profile = vdu["properties"]["vdu_profile"]
+ min_inst_num = int(vdu_profile["min_number_of_instances"])
+ max_inst_num = int(vdu_profile["max_number_of_instances"])
+ return min_inst_num, max_inst_num
+ raise NFLCMException("VDU(%s) does not exist" % self.target_vdu)
+
+ def check_if_can_scale(self):
+ cur_inst_num = VNFCInstModel.objects.filter(instid=self.nf_inst_id).count()
+ if self.is_scale_in:
+ if cur_inst_num - self.scale_inst_num < self.min_instance_num:
+ msg = "VNF(%s) cannot be scaled: less than min instance."
+ raise NFLCMException(msg % self.nf_inst_id)
+ else:
+ if cur_inst_num + self.scale_inst_num > self.max_instance_num:
+ msg = "VNF(%s) cannot be scaled: max instance exceeded."
+ raise NFLCMException(msg % self.nf_inst_id)
+
+ def set_affected_vnfcs(self, affected_vnfcs, vm_id):
+ chgtype = CHANGE_TYPE.REMOVED if self.is_scale_in else CHANGE_TYPE.ADDED
+ vnfcs = VNFCInstModel.objects.filter(instid=self.nf_inst_id, vmid=vm_id)
+ vm = VmInstModel.objects.filter(instid=self.nf_inst_id, resourceid=vm_id)
+ vm_resource = {}
+ if vm:
+ vm_resource = {
+ 'vimConnectionId': vm[0].vimid,
+ 'resourceId': vm[0].resourceid,
+ 'vimLevelResourceType': 'vm'
+ }
+ if vnfcs:
+ affected_vnfcs.append({
+ 'id': vnfcs[0].vnfcinstanceid,
+ 'vduId': vnfcs[0].vduid,
+ 'changeType': chgtype,
+ 'computeResource': vm_resource
+ })
+
+ def vnf_scale_failed_handle(self, error_msg):
+ logger.error('VNF scaling failed, detail message: %s', error_msg)
+ self.vnf_insts.update(status=VNF_STATUS.FAILED,
+ lastuptime=now_time())
+ JobUtil.add_job_status(self.job_id, 255, error_msg)
Code Review / vfc / gvnfm / vnflcm.git / blobdiff