1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
287
288
289
290
291
292
293
294
295
296
297
298
299
300
301
302
303
304
305
306
307
308
309
310
311
312
313
314
315
316
317
318
319
320
321
322
323
324
325
326
327
328
329
330
331
332
333
334
335
336
337
338
339
340
341
342
343
344
345
346
347
348
349
350
351
352
353
354
355
356
357
358
359
360
361
362
363
364
365
366
367
368
369
|
# Copyright (c) 2017-2018 Wind River Systems, Inc.
#
# 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.
import json
import logging
# import re
import uuid
import threading
import datetime
import time
import traceback
# from common.exceptions import VimDriverNewtonException
from common.utils import restcall
from rest_framework import status
from django.core.cache import cache
logger = logging.getLogger(__name__)
# Helper of MultiCloud API invocation
class Helper(object):
@staticmethod
def MultiCloudIdentityHelper(multicloud_api_prefix, cloud_owner,
cloud_region_id, uri, data={}, header=''):
auth_api_url_format = "/{f_cloudowner}/{f_cloudregionid}/identity{f_uri}"
auth_api_url = auth_api_url_format.format(f_cloudowner=cloud_owner,
f_cloudregionid=cloud_region_id,
f_uri=uri)
extra_headers = header
ret = restcall._call_req(multicloud_api_prefix, "", "", 0, auth_api_url, "POST", extra_headers, json.dumps(data))
if ret[0] == 0 and ret[1]:
content = json.JSONDecoder().decode(ret[1])
ret[1] = content
return ret
# The consumer of this api must be attaching to the same management network of multicloud,
# The constraints comes from the returned catalog endpoint url e.g. "http://10.0.14.1:80/api/multicloud-titaniumcloud/v0/pod25_RegionOne/identity/v3"
@staticmethod
def MultiCloudServiceHelper(
cloud_owner, cloud_region_id, v2_token_resp_json, service_type,
uri, data=None, method="GET"):
# get endpoint from token response
token = v2_token_resp_json["access"]["token"]["id"]
catalogs = v2_token_resp_json["access"]["serviceCatalog"]
for catalog in catalogs:
if catalog['type'] == service_type:
# now we have endpoint
endpoint_url = catalog['endpoints'][0]['publicURL']
extra_headers = {'X-Auth-Token': token}
ret = restcall._call_req(endpoint_url, "", "", 0, uri, method, extra_headers, json.dumps(data) if data else "")
if ret[0] == 0 and ret[1]:
content = json.JSONDecoder().decode(ret[1])
ret[1] = content
return ret
return [1, None, status.HTTP_404_NOT_FOUND] # return resource not found in case no type found
# Helper of AAI resource access
class MultiCloudAAIHelper(object):
'''
Helper to register infrastructure resource into AAI
'''
def __init__(self, multicloud_prefix, aai_base_url):
logger.debug("MultiCloudAAIHelper __init__ traceback: %s" % traceback.format_exc())
self.proxy_prefix = multicloud_prefix
self.aai_base_url = aai_base_url
self._logger = logger
# super(MultiCloudAAIHelper, self).__init__()
def _get_list_resources(
self, resource_url, service_type, session, viminfo,
vimid, content_key):
service = {
'service_type': service_type,
'interface': 'public'
}
# identity service should not filtered by region since it is might be first call
# to figure out available region list
if service_type != 'identity':
service['region_name'] = viminfo['openstack_region_id']\
if viminfo.get('openstack_region_id') else viminfo['cloud_region_id']
self._logger.debug("making request with URI:%s,%s" % (resource_url, service))
resp = session.get(resource_url, endpoint_filter=service)
self._logger.debug("request returns with status %s" % resp.status_code)
if resp.status_code == status.HTTP_200_OK:
self._logger.debug("with content:%s" % resp.json())
content = resp.json()
return content.get(content_key)
return None # failed to discover resources
def _update_resoure(self, cloud_owner, cloud_region_id,
resoure_id, resource_info, resource_type):
if cloud_owner and cloud_region_id:
self._logger.debug(
("_update_resoure,vimid:%(cloud_owner)s"
"_%(cloud_region_id)s req_to_aai: %(resoure_id)s, "
"%(resource_type)s, %(resource_info)s")
% {
"cloud_owner": cloud_owner,
"cloud_region_id": cloud_region_id,
"resoure_id": resoure_id,
"resource_type": resource_type,
"resource_info": resource_info,
})
# get the resource first
resource_url = ("/cloud-infrastructure/cloud-regions/"
"cloud-region/%(cloud_owner)s/%(cloud_region_id)s/"
"%(resource_type)ss/%(resource_type)s/%(resoure_id)s"
% {
"cloud_owner": cloud_owner,
"cloud_region_id": cloud_region_id,
"resoure_id": resoure_id,
"resource_type": resource_type,
})
# get cloud-region
retcode, content, status_code = \
restcall.req_to_aai(resource_url, "GET")
# add resource-version
if retcode == 0 and content:
content = json.JSONDecoder().decode(content)
#resource_info["resource-version"] = content["resource-version"]
content.update(resource_info)
resource_info = content
#then update the resource
retcode, content, status_code = \
restcall.req_to_aai(resource_url, "PUT", content=resource_info)
self._logger.debug(
("_update_resoure,vimid:%(cloud_owner)s"
"_%(cloud_region_id)s req_to_aai: %(resoure_id)s, "
"return %(retcode)s, %(content)s, %(status_code)s")
% {
"cloud_owner": cloud_owner,
"cloud_region_id": cloud_region_id,
"resoure_id": resoure_id,
"retcode": retcode,
"content": content,
"status_code": status_code,
})
return retcode, content
# unknown cloud owner,region_id
return (
11,
"Unknown Cloud Region ID: %s ,%s" %(cloud_owner, cloud_region_id)
)
pass
# thread helper
class MultiCloudThreadHelper(object):
'''
Helper to manage LCM of an offloading thread
'''
@staticmethod
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 __init__(self, name=""):
# debug: dump the callstack to determine the callstack, hence the lcm
# logger.debug("MultiCloudThreadHelper __init__: %s" % traceback.format_exc())
# format of a backlog item:
# {
# "id": unique string to identify this item in backlog,
# "worker": pointer to helper method
# "payload": opaque object to pass to the worker for processing
# "repeat": interval in micro-seconds for repeating this worker, 0 for one time worker
# "timestamp": time stamp of last invocation of this worker, 0 for initial state
# "status": opaque object to represent the progress of the backlog processing
# }
# format of backlog:
# {"<id value of backlog item>": <backlog item>, ...}
self.backlog = {}
# expired backlog items
self.expired_backlog = {}
self.lock = threading.Lock()
self.state_ = 0 # 0: stopped, 1: started
self.cache_prefix = "bi_"+name+"_"
self.cache_expired_prefix = "biex_"+name+"_"
self.thread = MultiCloudThreadHelper.HelperThread(self)
self.thread.start()
def state(self):
return self.state_
def start(self):
self.lock.acquire()
if 0 == self.state_:
self.state_ = 1
# self.thread = MultiCloudThreadHelper.HelperThread(self)
# self.thread.start()
else:
pass
self.lock.release()
def stop(self):
self.state_ = 0
def add(self, backlog_item):
cache_for_query = None
if not hasattr(backlog_item, "worker"):
return None
if not hasattr(backlog_item, "id"):
backlog_item["id"] = str(uuid.uuid1())
else:
cache_for_query = {
"id": backlog_item["id"],
"status": backlog_item.get("status", None)
}
if not hasattr(backlog_item, "repeat"):
backlog_item["repeat"] = 0
backlog_item["timestamp"] = 0
# self.lock.acquire()
# make sure there is no identical backlog in expired backlog
if cache_for_query:
cache.set(self.cache_prefix + backlog_item["id"],
json.dumps(cache_for_query), 3600 * 24)
self.expired_backlog.pop(backlog_item["id"], None)
self.backlog.update(backlog_item["id"], backlog_item)
# self.lock.release()
return len(self.backlog)
def get(self, backlog_id):
item = self.backlog.get(backlog_id, None) or self.expired_backlog.get(backlog_id, None)
# check the cache
if not item:
cache_for_query_str = cache.get(self.cache_prefix + backlog_id)
if cache_for_query_str:
item = json.loads(cache_for_query_str)
else:
cache_for_query_str = cache.get(self.cache_expired_prefix + backlog_id)
if cache_for_query_str:
item = json.loads(cache_for_query_str)
return item
# check if the backlog item is in expired backlog
def expired(self, backlog_id):
if not self.backlog.get(backlog_id, None):
if self.expired_backlog.get(backlog_id, None):
return True
# check the cache
cache_for_query_str = cache.get(self.cache_prefix + backlog_id)
if not cache_for_query_str:
cache_for_query_str = cache.get(self.cache_expired_prefix + backlog_id)
if cache_for_query_str:
return True
return False
def remove(self, backlog_id):
# self.lock.acquire()
self.backlog.pop(backlog_id, None)
self.expired_backlog.pop(backlog_id, None)
cache.delete(self.cache_prefix + backlog_id)
cache.delete(self.cache_expired_prefix + backlog_id)
# self.lock.release()
def reset(self):
# self.lock.acquire()
self.backlog.clear()
self.expired_backlog.clear()
# self.lock.release()
#def count(self):
# return len(self.backlog)
class HelperThread(threading.Thread):
def __init__(self, owner):
threading.Thread.__init__(self)
self.daemon = True
self.duration = 0
self.owner = owner
# debug: dump the callstack to determine the callstack, hence the lcm
logger.debug("HelperThread __init__ : %s" % traceback.format_exc())
def run(self):
logger.debug("Start processing backlogs")
nexttimer = 0
while self.owner.state_ == 1: # and self.owner.count() > 0:
if nexttimer > 1000000:
# sleep in case of interval > 1 second
time.sleep(nexttimer // 1000000)
nexttimer = 30*1000000 # initial interval in us to be updated:30 seconds
for backlog_id, item in self.owner.backlog:
# check interval for repeatable backlog item
now = MultiCloudThreadHelper.get_epoch_now_usecond()
repeat_interval = item.get("repeat", 0)
if repeat_interval > 0:
timestamp = item.get("timestamp", 0)
timeleft = (now - timestamp
if now > timestamp
else repeat_interval)
nexttimer = timeleft if nexttimer > timeleft else nexttimer
# compare interval with elapsed time.
# workaround the case of timestamp turnaround
if repeat_interval > timeleft:
# not time to run this backlog item yet
continue
worker = item.get("worker", None)
payload = item.get("payload", None)
try:
item["status"] = worker(payload) or 0
except Exception as e:
item["status"] = e.message
cache_item_for_query = {
"id": item["id"],
"status": item["status"]
}
if item.get("repeat", 0) == 0:
self.owner.remove(backlog_id)
# keep only the id and status
self.owner.expired_backlog[backlog_id] = {"status": item["status"]}
#update cache
try:
cache.set(self.owner.cache_expired_prefix + cache_item_for_query["id"], cache_item_for_query, 3600*24)
cache.delete(self.owner.cache_prefix + cache_item_for_query["id"])
except Exception as e:
logger.error(e.message)
else:
item["timestamp"] = now
#update cache
try:
cache.set(self.owner.cache_prefix + cache_item_for_query["id"], cache_item_for_query, 3600*24)
except Exception as e:
logger.error(e.message)
pass
# end of loop
# while True:
# logger.debug("thread sleep for 5 seconds")
# time.sleep(5) # wait forever, testonly
logger.debug("stop processing backlogs")
self.owner.state_ = 0
# end of processing
|