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#!/usr/bin/env python
# -*- coding: utf-8 -*-
# Copyright (c) 2019, CMCC Technologies Co., Ltd.
# 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 logging
import json
import uuid
from django.conf import settings
from fcaps.vesagent.vespublish import publishAnyEventToVES
from common.utils import restcall
from common.msapi.helper import Helper as helper
from common.msapi import extsys
import datetime
import time
logger = logging.getLogger(__name__)
def get_epoch_now_usecond():
'''
get epoch timestamp of this moment in usecond
:return:
'''
now_time = datetime.datetime.now()
epoch_time_sec = time.mktime(now_time.timetuple())
return int(epoch_time_sec * 1e6 + now_time.microsecond)
def buildBacklog_pm_vm(vimid, backlog_input):
# build backlog with domain:"fault", type:"vm"
logger.info("vimid: %s" % vimid)
logger.debug("with input: %s" % backlog_input)
try:
# must resolve the tenant id and server id while building the backlog
tenant_id = backlog_input.get("tenantid", None)
server_id = backlog_input.get("sourceid", None)
server_name = backlog_input.get("source", None)
# should resolve the name to id later
if tenant_id is None:
tenant_name = backlog_input["tenant"]
# resolve tenant_name to tenant_id
auth_api_url_format = "/{f_vim_id}/identity/v2.0/tokens"
auth_api_url = auth_api_url_format.format(f_vim_id=vimid)
auth_api_data = {"auth": {"tenantName": tenant_name}}
base_url = settings.MULTICLOUD_PREFIX
extra_headers = ''
ret = restcall._call_req(base_url, "", "", 0, auth_api_url,
"POST", extra_headers, json.dumps(auth_api_data))
if ret[0] > 0 or ret[1] is None:
logger.critical("call url %s failed with status %s" % (auth_api_url, ret[0]))
return None
token_resp = json.JSONDecoder().decode(ret[1])
token = token_resp["access"]["token"]["id"]
tenant_id = token_resp["access"]["token"]["tenant"]["id"]
if server_id is None and server_name:
# resolve server_name to server_id in case no wildcast in server_name
vserver_api_url_format \
= "/{f_vim_id}/compute/v2.1/{f_tenant_id}/servers?name={f_server_name}"
vserver_api_url = vserver_api_url_format.format(f_vim_id=vimid,
f_tenant_id=tenant_id,
f_server_name=server_name)
base_url = settings.MULTICLOUD_PREFIX
extra_headers = {'X-Auth-Token': token}
ret = restcall._call_req(base_url, "", "", 0, vserver_api_url, "GET", extra_headers, "")
if ret[0] > 0 or ret[1] is None:
logger.critical("call url %s failed with status %s" % (vserver_api_url, ret[0]))
return None
server_resp = json.JSONDecoder().decode(ret[1])
# find out the server wanted
for s in server_resp.get("servers", []):
if s["name"] == server_name:
server_id = s["id"]
break
if server_id is None:
logger.warn("source %s cannot be found under tenant id %s "
% (server_name, tenant_id))
return None
# m.c. proxied OpenStack API
if server_id is None and server_name is None:
api_url = "/v2/samples"
else:
# monitor all VMs of the specified VIMs since no server_id can be resolved
api_url_fmt = "/v2/samples?q.field=resource_id&q.op=eq&q.value={f_server_id}"
api_url = api_url_fmt.format(
f_server_id=server_id)
backlog = {
"backlog_uuid":
str(uuid.uuid3(uuid.NAMESPACE_URL,
str("%s-%s-%s" % (vimid, tenant_id, server_id)))),
"tenant_id": tenant_id,
"server_id": server_id,
"api_method": "GET",
"api_link": api_url,
}
backlog.update(backlog_input)
except Exception as e:
logger.error("exception:%s" % str(e))
return None
logger.info("return")
logger.debug("with backlog: %s" % backlog)
return backlog
# process backlog with domain:"pm", type:"vm"
def processBacklog_pm_vm(vesAgentConfig, vesAgentState, oneBacklog):
logger.debug("vesAgentConfig:%s, vesAgentState:%s, oneBacklog: %s"
% (vesAgentConfig, vesAgentState, oneBacklog))
try:
# get token
# resolve tenant_name to tenant_id
vimid = vesAgentConfig["vimid"]
cloud_owner, regionid = extsys.decode_vim_id(vimid)
# should go via multicloud proxy so that the selflink is updated by multicloud
retcode, v2_token_resp_json, os_status = helper.MultiCloudIdentityHelper(
settings.MULTICLOUD_API_V1_PREFIX,
cloud_owner, regionid, "/v2.0/tokens")
if retcode > 0 or not v2_token_resp_json:
logger.error("authenticate fails:%s,%s, %s" %
(cloud_owner, regionid, v2_token_resp_json))
return
service_type = "metering"
resource_uri = oneBacklog["api_link"]
template_data = ''
logger.info("retrieve metering resources, URI:%s" % resource_uri)
retcode, content, os_status = helper.MultiCloudServiceHelper(cloud_owner,
regionid,
v2_token_resp_json,
service_type,
resource_uri,
template_data,
"GET")
meters = content if retcode == 0 and content else []
all_events = []
for meter in meters:
encodeData = data2event_pm_vm(meter)
encodeData['event']['commonEventHeader']['eventType'] = 'guestOS'
encodeData['event']['commonEventHeader']['reportingEntityId'] = vimid
encodeData['event']['commonEventHeader']['reportingEntityName'] = vimid
if encodeData is not None:
logger.debug("this event: %s" % encodeData)
all_events.append(encodeData.get("event", None))
# report data to VES
if len(all_events) > 0:
ves_subscription = vesAgentConfig.get("subscription", None)
publishAnyEventToVES(ves_subscription, all_events)
# store the latest data into cache, never expire
except Exception as e:
logger.error("exception:%s" % str(e))
return
logger.info("return")
return
def data2event_pm_vm(vm_data):
VES_EVENT_VERSION = 3.0
VES_EVENT_pm_VERSION = 2.0
VES_EVENT_pm_DOMAIN = "measurementsForVfScaling"
eventId = str(uuid.uuid1())
eventName = 'Mfvs_' + vm_data['resource_id']
eventType = ''
sourceId = vm_data['resource_id']
sourceName = vm_data['resource_id']
reportingEntityId = ''
reportingEntityName = ''
priority = 'Normal'
sequence = 1
startEpochMicrosec = int(time.mktime(time.strptime(vm_data['recorded_at'], '%Y-%m-%dT%H:%M:%S')))
lastEpochMicrosec = startEpochMicrosec
additionalMeasurements = []
arrayOfFields = []
arrayOfFields.append({'name': vm_data['meter'], 'value': str(vm_data['volume'])})
additionalMeasurements.append({'name': sourceId, 'arrayOfFields': arrayOfFields})
this_event = {
'event': {
'commonEventHeader': {
'version': VES_EVENT_VERSION,
'eventName': eventName,
'domain': VES_EVENT_pm_DOMAIN,
'eventId': eventId,
'eventType': eventType,
'sourceId': sourceId,
'sourceName': sourceName,
'reportingEntityId': reportingEntityId,
'reportingEntityName': reportingEntityName,
'priority': priority,
'startEpochMicrosec': startEpochMicrosec,
'lastEpochMicrosec': lastEpochMicrosec,
'sequence': sequence
},
'measurementsForVfScalingFields': {
'measurementsForVfScalingVersion': VES_EVENT_pm_VERSION,
'measurementInterval': 0,
'additionalMeasurements': additionalMeasurements
}
}
}
return this_event
def partition_samples(data):
# check all samples recorded at time
time_sates = []
for obj in data:
time_sates.append(obj['recorded_at'])
time_sates = list(set(time_sates))
# match time for each sample
meter_to_ves = []
for time_sate in time_sates:
additionalMeasurements = []
arrayOfFields = []
resource_id = ""
for obj in data:
if obj['recorded_at'] == time_sate:
arrayOfFields.append({'name':obj['meter'], 'value':str(obj['volume'])})
resource_id = obj['resource_id']
additionalMeasurements.append({'name':resource_id, 'arrayOfFields':arrayOfFields})
meter_to_ves.append({'resource_id':resource_id, 'recorded_at':time_sate, 'additionalMeasurements':additionalMeasurements})
return meter_to_ves
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