rwlaunchpad/plugins/rwresmgr/rift/tasklets/rwresmgrtasklet/rwresmgr_core.py

   1 #
   2 #   Copyright 2016 RIFT.IO Inc
   3 #
   4 #   Licensed under the Apache License, Version 2.0 (the "License");
   5 #   you may not use this file except in compliance with the License.
   6 #   You may obtain a copy of the License at
   7 #
   8 #       http://www.apache.org/licenses/LICENSE-2.0
   9 #
  10 #   Unless required by applicable law or agreed to in writing, software
  11 #   distributed under the License is distributed on an "AS IS" BASIS,
  12 #   WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
  13 #   See the License for the specific language governing permissions and
  14 #   limitations under the License.
  15 #
  16
  17 import uuid
  18 import collections
  19 import asyncio
  20 import concurrent.futures
  21
  22 import gi
  23 gi.require_version('RwDts', '1.0')
  24 gi.require_version('RwYang', '1.0')
  25 gi.require_version('RwResourceMgrYang', '1.0')
  26 gi.require_version('RwLaunchpadYang', '1.0')
  27 gi.require_version('RwcalYang', '1.0')
  28 from gi.repository import (
  29     RwDts as rwdts,
  30     RwYang,
  31     RwResourceMgrYang,
  32     RwLaunchpadYang,
  33     RwcalYang,
  34 )
  35
  36 from gi.repository.RwTypes import RwStatus
  37
  38 class ResMgrCALNotPresent(Exception):
  39     pass
  40
  41 class ResMgrCloudAccountNotFound(Exception):
  42     pass
  43
  44 class ResMgrCloudAccountExists(Exception):
  45     pass
  46
  47 class ResMgrCloudAccountInUse(Exception):
  48     pass
  49
  50 class ResMgrDuplicatePool(Exception):
  51     pass
  52
  53 class ResMgrPoolNotAvailable(Exception):
  54     pass
  55
  56 class ResMgrPoolOperationFailed(Exception):
  57     pass
  58
  59 class ResMgrDuplicateEventId(Exception):
  60     pass
  61
  62 class ResMgrUnknownEventId(Exception):
  63     pass
  64
  65 class ResMgrUnknownResourceId(Exception):
  66     pass
  67
  68 class ResMgrResourceIdBusy(Exception):
  69     pass
  70
  71 class ResMgrResourceIdNotAllocated(Exception):
  72     pass
  73
  74 class ResMgrNoResourcesAvailable(Exception):
  75     pass
  76
  77 class ResMgrResourcesInitFailed(Exception):
  78     pass
  79
  80 class ResMgrCALOperationFailure(Exception):
  81     pass
  82
  83
  84
  85 class ResourceMgrCALHandler(object):
  86     def __init__(self, loop, executor, log, log_hdl, account):
  87         self._log = log
  88         self._loop = loop
  89         self._executor = executor
  90         self._account = account.cal_account_msg
  91         self._rwcal = account.cal
  92         if account.account_type == 'aws':
  93             self._subnets = ["172.31.97.0/24", "172.31.98.0/24", "172.31.99.0/24", "172.31.100.0/24", "172.31.101.0/24"]
  94         else:
  95             self._subnets = ["11.0.0.0/24",
  96                              "12.0.0.0/24",
  97                              "13.0.0.0/24",
  98                              "14.0.0.0/24",
  99                              "15.0.0.0/24",
 100                              "16.0.0.0/24",
 101                              "17.0.0.0/24",
 102                              "18.0.0.0/24",
 103                              "19.0.0.0/24",
 104                              "20.0.0.0/24",
 105                              "21.0.0.0/24",
 106                              "22.0.0.0/24",]
 107         self._subnet_ptr = 0
 108
 109     def _select_link_subnet(self):
 110         subnet = self._subnets[self._subnet_ptr]
 111         self._subnet_ptr += 1
 112         if self._subnet_ptr == len(self._subnets):
 113             self._subnet_ptr = 0
 114         return subnet
 115
 116     @asyncio.coroutine
 117     def create_virtual_network(self, req_params):
 118         #rc, rsp = self._rwcal.get_virtual_link_list(self._account)
 119         self._log.debug("Calling get_virtual_link_list API")
 120         rc, rsp = yield from self._loop.run_in_executor(self._executor,
 121                                                         self._rwcal.get_virtual_link_list,
 122                                                         self._account)
 123
 124         assert rc == RwStatus.SUCCESS
 125
 126         links = [vlink for vlink in rsp.virtual_link_info_list if vlink.name == req_params.name]
 127         if links:
 128             self._log.debug("Found existing virtual-network with matching name in cloud. Reusing the virtual-network with id: %s" %(links[0].virtual_link_id))
 129             return ('precreated', links[0].virtual_link_id)
 130         elif req_params.vim_network_name:
 131             self._log.error("Virtual-network-allocate operation failed for cloud account: %s Vim Network with name %s does not pre-exist",
 132                     self._account.name, req_params.vim_network_name)
 133             raise ResMgrCALOperationFailure("Virtual-network allocate operation failed for cloud account: %s Vim Network with name %s does not pre-exist"
 134                     %(self._account.name, req_params.vim_network_name))
 135
 136         params = RwcalYang.VirtualLinkReqParams()
 137         params.from_dict(req_params.as_dict())
 138         params.subnet = self._select_link_subnet()
 139         #rc, rs = self._rwcal.create_virtual_link(self._account, params)
 140         self._log.debug("Calling create_virtual_link API with params: %s" %(str(req_params)))
 141         rc, rs = yield from self._loop.run_in_executor(self._executor,
 142                                                        self._rwcal.create_virtual_link,
 143                                                        self._account,
 144                                                        params)
 145         if rc.status != RwStatus.SUCCESS:
 146             self._log.error("Virtual-network-allocate operation failed for cloud account: %s - error_msg: %s, Traceback: %s",
 147                     self._account.name, rc.error_msg, rc.traceback)
 148             raise ResMgrCALOperationFailure("Virtual-network allocate operation failed for cloud account: %s (%s)"
 149                     %(self._account.name, rc.error_msg))
 150
 151         return ('dynamic',rs)
 152
 153     @asyncio.coroutine
 154     def delete_virtual_network(self, network_id):
 155         #rc = self._rwcal.delete_virtual_link(self._account, network_id)
 156         self._log.debug("Calling delete_virtual_link API with id: %s" %(network_id))
 157         rc = yield from self._loop.run_in_executor(self._executor,
 158                                                    self._rwcal.delete_virtual_link,
 159                                                    self._account,
 160                                                    network_id)
 161         if rc != RwStatus.SUCCESS:
 162             self._log.error("Virtual-network-release operation failed for cloud account: %s. ResourceID: %s",
 163                             self._account.name,
 164                             network_id)
 165             raise ResMgrCALOperationFailure("Virtual-network release operation failed for cloud account: %s. ResourceId: %s" %(self._account.name, network_id))
 166
 167     @asyncio.coroutine
 168     def get_virtual_network_info(self, network_id):
 169         #rc, rs = self._rwcal.get_virtual_link(self._account, network_id)
 170         self._log.debug("Calling get_virtual_link_info API with id: %s" %(network_id))
 171         rc, rs = yield from self._loop.run_in_executor(self._executor,
 172                                                        self._rwcal.get_virtual_link,
 173                                                        self._account,
 174                                                        network_id)
 175         if rc != RwStatus.SUCCESS:
 176             self._log.error("Virtual-network-info operation failed for cloud account: %s. ResourceID: %s",
 177                             self._account.name,
 178                             network_id)
 179             raise ResMgrCALOperationFailure("Virtual-network-info operation failed for cloud account: %s. ResourceID: %s" %(self._account.name, network_id))
 180         return rs
 181
 182     @asyncio.coroutine
 183     def create_virtual_compute(self, req_params):
 184         #rc, rsp = self._rwcal.get_vdu_list(self._account)
 185         self._log.debug("Calling get_vdu_list API")
 186
 187         rc, rsp = yield from self._loop.run_in_executor(self._executor,
 188                                                         self._rwcal.get_vdu_list,
 189                                                         self._account)
 190         assert rc == RwStatus.SUCCESS
 191         vdus = [vm for vm in rsp.vdu_info_list if vm.name == req_params.name]
 192         if vdus:
 193             self._log.debug("Found existing virtual-compute with matching name in cloud. Reusing the virtual-compute element with id: %s" %(vdus[0].vdu_id))
 194             return vdus[0].vdu_id
 195
 196         params = RwcalYang.VDUInitParams()
 197         params.from_dict(req_params.as_dict())
 198
 199         if 'image_name' in req_params:
 200             image_checksum = req_params.image_checksum if req_params.has_field("image_checksum") else None
 201             params.image_id = yield from self.get_image_id_from_image_info(req_params.image_name, image_checksum)
 202
 203         #rc, rs = self._rwcal.create_vdu(self._account, params)
 204         self._log.debug("Calling create_vdu API with params %s" %(str(params)))
 205         rc, rs = yield from self._loop.run_in_executor(self._executor,
 206                                                        self._rwcal.create_vdu,
 207                                                        self._account,
 208                                                        params)
 209
 210         if rc.status != RwStatus.SUCCESS:
 211             self._log.error("Virtual-compute-create operation failed for cloud account: %s - error_msg: %s, Traceback: %s",
 212                     self._account.name, rc.error_msg, rc.traceback)
 213             raise ResMgrCALOperationFailure("Virtual-compute-create operation failed for cloud account: %s (%s)"
 214                     %(self._account.name, rc.error_msg))
 215
 216         return rs
 217
 218     @asyncio.coroutine
 219     def modify_virtual_compute(self, req_params):
 220         #rc = self._rwcal.modify_vdu(self._account, req_params)
 221         self._log.debug("Calling modify_vdu API with params: %s" %(str(req_params)))
 222         rc = yield from self._loop.run_in_executor(self._executor,
 223                                                    self._rwcal.modify_vdu,
 224                                                    self._account,
 225                                                    req_params)
 226         if rc != RwStatus.SUCCESS:
 227             self._log.error("Virtual-compute-modify operation failed for cloud account: %s", self._account.name)
 228             raise ResMgrCALOperationFailure("Virtual-compute-modify operation failed for cloud account: %s" %(self._account.name))
 229
 230     @asyncio.coroutine
 231     def delete_virtual_compute(self, compute_id):
 232         #rc = self._rwcal.delete_vdu(self._account, compute_id)
 233         self._log.debug("Calling delete_vdu API with id: %s" %(compute_id))
 234         rc = yield from self._loop.run_in_executor(self._executor,
 235                                                    self._rwcal.delete_vdu,
 236                                                    self._account,
 237                                                    compute_id)
 238         if rc != RwStatus.SUCCESS:
 239             self._log.error("Virtual-compute-release operation failed for cloud account: %s. ResourceID: %s",
 240                             self._account.name,
 241                             compute_id)
 242             raise ResMgrCALOperationFailure("Virtual-compute-release operation failed for cloud account: %s. ResourceID: %s" %(self._account.name, compute_id))
 243
 244     @asyncio.coroutine
 245     def get_virtual_compute_info(self, compute_id):
 246         #rc, rs = self._rwcal.get_vdu(self._account, compute_id)
 247         self._log.debug("Calling get_vdu API with id: %s" %(compute_id))
 248         rc, rs = yield from self._loop.run_in_executor(self._executor,
 249                                                        self._rwcal.get_vdu,
 250                                                        self._account,
 251                                                        compute_id)
 252         if rc != RwStatus.SUCCESS:
 253             self._log.error("Virtual-compute-info operation failed for cloud account: %s. ResourceID: %s",
 254                             self._account.name,
 255                             compute_id)
 256             raise ResMgrCALOperationFailure("Virtual-compute-info operation failed for cloud account: %s. ResourceID: %s" %(self._account.name, compute_id))
 257         return rs
 258
 259     @asyncio.coroutine
 260     def get_compute_flavor_info_list(self):
 261         #rc, rs = self._rwcal.get_flavor_list(self._account)
 262         self._log.debug("Calling get_flavor_list API")
 263         rc, rs = yield from self._loop.run_in_executor(self._executor,
 264                                                        self._rwcal.get_flavor_list,
 265                                                        self._account)
 266         if rc != RwStatus.SUCCESS:
 267             self._log.error("Get-flavor-info-list operation failed for cloud account: %s",
 268                             self._account.name)
 269             raise ResMgrCALOperationFailure("Get-flavor-info-list operation failed for cloud account: %s" %(self._account.name))
 270         return rs.flavorinfo_list
 271
 272     @asyncio.coroutine
 273     def create_compute_flavor(self, request):
 274         flavor = RwcalYang.FlavorInfoItem()
 275         flavor.name = str(uuid.uuid4())
 276         epa_types = ['vm_flavor', 'guest_epa', 'host_epa', 'host_aggregate']
 277         epa_dict = {k: v for k, v in request.as_dict().items() if k in epa_types}
 278         flavor.from_dict(epa_dict)
 279
 280         self._log.info("Creating flavor: %s", flavor)
 281         #rc, rs = self._rwcal.create_flavor(self._account, flavor)
 282         self._log.debug("Calling create_flavor API")
 283         rc, rs = yield from self._loop.run_in_executor(self._executor,
 284                                                        self._rwcal.create_flavor,
 285                                                        self._account,
 286                                                        flavor)
 287         if rc != RwStatus.SUCCESS:
 288             self._log.error("Create-flavor operation failed for cloud account: %s",
 289                             self._account.name)
 290             raise ResMgrCALOperationFailure("Create-flavor operation failed for cloud account: %s" %(self._account.name))
 291         return rs
 292
 293     @asyncio.coroutine
 294     def get_image_info_list(self):
 295         #rc, rs = self._rwcal.get_image_list(self._account)
 296         self._log.debug("Calling get_image_list API")
 297         rc, rs = yield from self._loop.run_in_executor(self._executor,
 298                                                        self._rwcal.get_image_list,
 299                                                        self._account)
 300         if rc != RwStatus.SUCCESS:
 301             self._log.error("Get-image-info-list operation failed for cloud account: %s",
 302                             self._account.name)
 303             raise ResMgrCALOperationFailure("Get-image-info-list operation failed for cloud account: %s" %(self._account.name))
 304         return rs.imageinfo_list
 305
 306     @asyncio.coroutine
 307     def get_image_id_from_image_info(self, image_name, image_checksum=None):
 308         self._log.debug("Looking up image id for image name %s and checksum %s on cloud account: %s",
 309                 image_name, image_checksum, self._account.name
 310                 )
 311
 312         image_list = yield from self.get_image_info_list()
 313         matching_images = [i for i in image_list if i.name == image_name]
 314
 315         # If the image checksum was filled in then further filter the images by the checksum
 316         if image_checksum is not None:
 317             matching_images = [i for i in matching_images if i.checksum == image_checksum]
 318         else:
 319             self._log.warning("Image checksum not provided.  Lookup using image name (%s) only.",
 320                               image_name)
 321
 322         if len(matching_images) == 0:
 323             raise ResMgrCALOperationFailure("Could not find image name {} (using checksum: {}) for cloud account: {}".format(
 324                 image_name, image_checksum, self._account.name
 325                 ))
 326
 327         elif len(matching_images) > 1:
 328             unique_checksums = {i.checksum for i in matching_images}
 329             if len(unique_checksums) > 1:
 330                 msg = ("Too many images with different checksums matched "
 331                        "image name of %s for cloud account: %s" % (image_name, self._account.name))
 332                 raise ResMgrCALOperationFailure(msg)
 333
 334         return matching_images[0].id
 335
 336     @asyncio.coroutine
 337     def get_image_info(self, image_id):
 338         #rc, rs = self._rwcal.get_image(self._account, image_id)
 339         self._log.debug("Calling get_image API for id: %s" %(image_id))
 340         rc, rs = yield from self._loop.run_in_executor(self._executor,
 341                                                        self._rwcal.get_image,
 342                                                        self._account,
 343                                                        image_id)
 344         if rc != RwStatus.SUCCESS:
 345             self._log.error("Get-image-info-list operation failed for cloud account: %s",
 346                             self._account.name)
 347             raise ResMgrCALOperationFailure("Get-image-info operation failed for cloud account: %s" %(self._account.name))
 348         return rs.imageinfo_list
 349
 350     def dynamic_flavor_supported(self):
 351         return getattr(self._account, self._account.account_type).dynamic_flavor_support
 352
 353
 354 class Resource(object):
 355     def __init__(self, resource_id, resource_type, request):
 356         self._id = resource_id
 357         self._type = resource_type
 358         self._request = request
 359
 360     @property
 361     def resource_id(self):
 362         return self._id
 363
 364     @property
 365     def resource_type(self):
 366         return self._type
 367
 368     @property
 369     def request(self):
 370         return self._request
 371
 372     def cleanup(self):
 373         pass
 374
 375
 376 class ComputeResource(Resource):
 377     pass
 378
 379
 380 class NetworkResource(Resource):
 381     pass
 382
 383
 384 class ResourcePoolInfo(object):
 385     def __init__(self, name, pool_type, resource_type, max_size):
 386         self.name = name
 387         self.pool_type = pool_type
 388         self.resource_type = resource_type
 389         self.max_size = max_size
 390
 391     @classmethod
 392     def from_dict(cls, pool_dict):
 393         return cls(
 394                 pool_dict["name"],
 395                 pool_dict["pool_type"],
 396                 pool_dict["resource_type"],
 397                 pool_dict["max_size"],
 398                 )
 399
 400
 401 class ResourcePool(object):
 402     def __init__(self, log, loop, pool_info, resource_class, cal):
 403         self._log = log
 404         self._loop = loop
 405         self._name = pool_info.name
 406         self._pool_type = pool_info.pool_type
 407         self._resource_type = pool_info.resource_type
 408         self._cal = cal
 409         self._resource_class = resource_class
 410
 411         self._max_size = pool_info.max_size
 412
 413         self._status = 'unlocked'
 414         ### A Dictionary of all the resources in this pool, keyed by CAL resource-id
 415         self._all_resources = {}
 416         ### A List of free resources in this pool
 417         self._free_resources = []
 418         ### A Dictionary of all the allocated resources in this pool, keyed by CAL resource-id
 419         self._allocated_resources = {}
 420
 421     @property
 422     def name(self):
 423         return self._name
 424
 425     @property
 426     def cal(self):
 427         """ This instance's ResourceMgrCALHandler """
 428         return self._cal
 429
 430     @property
 431     def pool_type(self):
 432         return self._pool_type
 433
 434     @property
 435     def resource_type(self):
 436         return self._resource_type
 437
 438     @property
 439     def max_size(self):
 440         return self._max_size
 441
 442     @property
 443     def status(self):
 444         return self._status
 445
 446     def in_use(self):
 447         if len(self._allocated_resources) != 0:
 448             return True
 449         else:
 450             return False
 451
 452     def update_cal_handler(self, cal):
 453         if self.in_use():
 454             raise ResMgrPoolOperationFailed(
 455                     "Cannot update CAL plugin for in use pool"
 456                     )
 457
 458         self._cal = cal
 459
 460     def lock_pool(self):
 461         self._log.info("Locking the pool :%s", self.name)
 462         self._status = 'locked'
 463
 464     def unlock_pool(self):
 465         self._log.info("Unlocking the pool :%s", self.name)
 466         self._status = 'unlocked'
 467
 468     def add_resource(self, resource_info):
 469         self._log.info("Adding static resource to Pool: %s, Resource-id: %s Resource-Type: %s",
 470                        self.name,
 471                        resource_info.resource_id,
 472                        self.resource_type)
 473
 474         ### Add static resources to pool
 475         resource = self._resource_class(resource_info.resource_id, 'static')
 476         assert resource.resource_id == resource_info.resource_id
 477         self._all_resources[resource.resource_id] = resource
 478         self._free_resources.append(resource)
 479
 480     def delete_resource(self, resource_id):
 481         if resource_id not in self._all_resources:
 482             self._log.error("Resource Id: %s not present in pool: %s. Delete operation failed", resource_id, self.name)
 483             raise ResMgrUnknownResourceId("Resource Id: %s requested for release is not found" %(resource_id))
 484
 485         if resource_id in self._allocated_resources:
 486             self._log.error("Resource Id: %s in use. Delete operation failed", resource_id)
 487             raise ResMgrResourceIdBusy("Resource Id: %s requested for release is in use" %(resource_id))
 488
 489         self._log.info("Deleting resource: %s from pool: %s, Resource-Type",
 490                        resource_id,
 491                        self.name,
 492                        self.resource_type)
 493
 494         resource = self._all_resources.pop(resource_id)
 495         self._free_resources.remove(resource)
 496         resource.cleanup()
 497         del resource
 498
 499     @asyncio.coroutine
 500     def read_resource_info(self, resource_id):
 501         if resource_id not in self._all_resources:
 502             self._log.error("Resource Id: %s not present in pool: %s. Read operation failed", resource_id, self.name)
 503             raise ResMgrUnknownResourceId("Resource Id: %s requested for read is not found" %(resource_id))
 504
 505         if resource_id not in self._allocated_resources:
 506             self._log.error("Resource Id: %s not in use. Read operation failed", resource_id)
 507             raise ResMgrResourceIdNotAllocated("Resource Id: %s not in use. Read operation failed" %(resource_id))
 508
 509         resource = self._allocated_resources[resource_id]
 510         resource_info = yield from self.get_resource_info(resource)
 511         return resource_info
 512
 513     def get_pool_info(self):
 514         info = RwResourceMgrYang.ResourceRecordInfo()
 515         self._log.info("Providing info for pool: %s", self.name)
 516         info.name = self.name
 517         if self.pool_type:
 518             info.pool_type = self.pool_type
 519         if self.resource_type:
 520             info.resource_type = self.resource_type
 521         if self.status:
 522             info.pool_status = self.status
 523
 524         info.total_resources = len(self._all_resources)
 525         info.free_resources = len(self._free_resources)
 526         info.allocated_resources = len(self._allocated_resources)
 527         return info
 528
 529     def cleanup(self):
 530         for _, v in self._all_resources.items():
 531             v.cleanup()
 532
 533     @asyncio.coroutine
 534     def _allocate_static_resource(self, request, resource_type):
 535         unit_type = {'compute': 'VDU', 'network':'VirtualLink'}
 536         match_found = False
 537         resource = None
 538         self._log.info("Doing resource match from pool :%s", self._free_resources)
 539         for resource in self._free_resources:
 540             resource_info = yield from self.get_resource_info(resource)
 541             self._log.info("Attempting to match %s-requirements for %s: %s with resource-id :%s",
 542                            resource_type, unit_type[resource_type],request.name, resource.resource_id)
 543             if self.match_epa_params(resource_info, request):
 544                 if self.match_image_params(resource_info, request):
 545                     match_found = True
 546                     self._log.info("%s-requirements matched for %s: %s with resource-id :%s",
 547                                    resource_type, unit_type[resource_type],request.name, resource.resource_id)
 548                     yield from self.initialize_resource_in_cal(resource, request)
 549             break
 550
 551         if not match_found:
 552             self._log.error("No match found for %s-requirements for %s: %s in pool: %s. %s instantiation failed",
 553                             resource_type,
 554                             unit_type[resource_type],
 555                             request.name,
 556                             self.name,
 557                             unit_type[resource_type])
 558             return None
 559         else:
 560             ### Move resource from free-list into allocated-list
 561             self._log.info("Allocating the static resource with resource-id: %s for %s: %s",
 562                            resource.resource_id,
 563                            unit_type[resource_type],request.name)
 564             self._free_resources.remove(resource)
 565             self._allocated_resources[resource.resource_id] = resource
 566
 567         return resource
 568
 569     @asyncio.coroutine
 570     def allocate_resource(self, request):
 571         resource = yield from self.allocate_resource_in_cal(request)
 572         resource_info =  yield from self.get_resource_info(resource)
 573         return resource.resource_id, resource_info
 574
 575     @asyncio.coroutine
 576     def release_resource(self, resource_id):
 577         self._log.debug("Releasing resource_id %s in pool %s", resource_id, self.name)
 578         if resource_id not in self._allocated_resources:
 579             self._log.error("Failed to release a resource with resource-id: %s in pool: %s. Resource not known",
 580                             resource_id,
 581                             self.name)
 582             raise ResMgrUnknownResourceId("Failed to release resource with resource-id: %s. Unknown resource-id" %(resource_id))
 583
 584         ### Get resource object
 585         resource = self._allocated_resources.pop(resource_id)
 586         yield from self.uninitialize_resource_in_cal(resource)
 587         yield from self.release_cal_resource(resource)
 588
 589
 590 class NetworkPool(ResourcePool):
 591     def __init__(self, log, loop, pool_info, cal):
 592         super(NetworkPool, self).__init__(log, loop, pool_info, NetworkResource, cal)
 593
 594     @asyncio.coroutine
 595     def allocate_resource_in_cal(self, request):
 596         resource = None
 597         if self.pool_type == 'static':
 598             self._log.info("Attempting network resource allocation from static pool: %s", self.name)
 599             ### Attempt resource allocation from static pool
 600             resource = yield from self._allocate_static_resource(request, 'network')
 601         elif self.pool_type == 'dynamic':
 602             ### Attempt resource allocation from dynamic pool
 603             self._log.info("Attempting network resource allocation from dynamic pool: %s", self.name)
 604             if len(self._free_resources) != 0:
 605                 self._log.info("Dynamic pool: %s has %d static resources, Attempting resource allocation from static resources",
 606                                self.name, len(self._free_resources))
 607                 resource =  yield from self._allocate_static_resource(request, 'network')
 608             if resource is None:
 609                 self._log.info("Could not resource from static resources. Going for dynamic resource allocation")
 610                 ## Not static resource available. Attempt dynamic resource from pool
 611                 resource = yield from self.allocate_dynamic_resource(request)
 612         if resource is None:
 613             raise ResMgrNoResourcesAvailable("No matching resource available for allocation from pool: %s" %(self.name))
 614         return resource
 615
 616     @asyncio.coroutine
 617     def allocate_dynamic_resource(self, request):
 618         resource_type, resource_id = yield from self._cal.create_virtual_network(request)
 619         if resource_id in self._all_resources:
 620             self._log.error("Resource with id %s name %s of type %s is already used", resource_id, request.name, resource_type)
 621             raise ResMgrNoResourcesAvailable("Resource with name %s of type network is already used" %(resource_id))
 622         resource = self._resource_class(resource_id, resource_type, request)
 623         self._all_resources[resource_id] = resource
 624         self._allocated_resources[resource_id] = resource
 625         self._log.info("Successfully allocated virtual-network resource from CAL with resource-id: %s", resource_id)
 626         return resource
 627
 628     @asyncio.coroutine
 629     def release_cal_resource(self, resource):
 630         if resource.resource_type == 'dynamic':
 631             self._log.debug("Deleting virtual network with network_id: %s", resource.resource_id)
 632             yield from self._cal.delete_virtual_network(resource.resource_id)
 633             self._all_resources.pop(resource.resource_id)
 634             self._log.info("Successfully released virtual-network resource in CAL with resource-id: %s", resource.resource_id)
 635         elif resource.resource_type == 'precreated':
 636             self._all_resources.pop(resource.resource_id)
 637             self._log.info("Successfully removed precreated virtual-network resource from allocated list: %s", resource.resource_id)
 638         else:
 639             self._log.info("Successfully released virtual-network resource with resource-id: %s into available-list", resource.resource_id)
 640             self._free_resources.append(resource)
 641
 642     @asyncio.coroutine
 643     def get_resource_info(self, resource):
 644         info = yield from self._cal.get_virtual_network_info(resource.resource_id)
 645         self._log.info("Successfully retrieved virtual-network information from CAL with resource-id: %s. Info: %s",
 646                        resource.resource_id, str(info))
 647         response = RwResourceMgrYang.VirtualLinkEventData_ResourceInfo()
 648         response.from_dict(info.as_dict())
 649         response.pool_name = self.name
 650         response.resource_state = 'active'
 651         return response
 652
 653     @asyncio.coroutine
 654     def get_info_by_id(self, resource_id):
 655         info = yield from self._cal.get_virtual_network_info(resource_id)
 656         self._log.info("Successfully retrieved virtual-network information from CAL with resource-id: %s. Info: %s",
 657                        resource_id, str(info))
 658         return info
 659
 660     def match_image_params(self, resource_info, request_params):
 661         return True
 662
 663     def match_epa_params(self, resource_info, request_params):
 664         if not hasattr(request_params, 'provider_network'):
 665             ### Its a match if nothing is requested
 666             return True
 667         else:
 668             required = getattr(request_params, 'provider_network')
 669
 670         if not hasattr(resource_info, 'provider_network'):
 671             ### Its no match
 672             return False
 673         else:
 674             available = getattr(resource_info, 'provider_network')
 675
 676         self._log.debug("Matching Network EPA params. Required: %s, Available: %s", required, available)
 677
 678         if required.has_field('name') and required.name!= available.name:
 679             self._log.debug("Provider Network mismatch. Required: %s, Available: %s",
 680                             required.name,
 681                             available.name)
 682             return False
 683
 684         self._log.debug("Matching EPA params physical network name")
 685
 686         if required.has_field('physical_network') and required.physical_network != available.physical_network:
 687             self._log.debug("Physical Network mismatch. Required: %s, Available: %s",
 688                             required.physical_network,
 689                             available.physical_network)
 690             return False
 691
 692         self._log.debug("Matching EPA params overlay type")
 693         if required.has_field('overlay_type') and required.overlay_type != available.overlay_type:
 694             self._log.debug("Overlay type mismatch. Required: %s, Available: %s",
 695                             required.overlay_type,
 696                             available.overlay_type)
 697             return False
 698
 699         self._log.debug("Matching EPA params SegmentationID")
 700         if required.has_field('segmentation_id') and required.segmentation_id != available.segmentation_id:
 701             self._log.debug("Segmentation-Id mismatch. Required: %s, Available: %s",
 702                             required.segmentation_id,
 703                             available.segmentation_id)
 704             return False
 705         return True
 706
 707     @asyncio.coroutine
 708     def initialize_resource_in_cal(self, resource, request):
 709         pass
 710
 711     @asyncio.coroutine
 712     def uninitialize_resource_in_cal(self, resource):
 713         pass
 714
 715
 716 class ComputePool(ResourcePool):
 717     def __init__(self, log, loop, pool_info, cal):
 718         super(ComputePool, self).__init__(log, loop, pool_info, ComputeResource, cal)
 719
 720     @asyncio.coroutine
 721     def allocate_resource_in_cal(self, request):
 722         resource = None
 723         if self.pool_type == 'static':
 724             self._log.info("Attempting compute resource allocation from static pool: %s", self.name)
 725             ### Attempt resource allocation from static pool
 726             resource = yield from self._allocate_static_resource(request, 'compute')
 727         elif self.pool_type == 'dynamic':
 728             ### Attempt resource allocation from dynamic pool
 729             self._log.info("Attempting compute resource allocation from dynamic pool: %s", self.name)
 730             if len(self._free_resources) != 0:
 731                 self._log.info("Dynamic pool: %s has %d static resources, Attempting resource allocation from static resources",
 732                                len(self._free_resources),
 733                                self.name)
 734                 resource = yield from self._allocate_static_resource(request, 'compute')
 735             if resource is None:
 736                 self._log.info("Attempting for dynamic resource allocation")
 737                 resource = yield from self.allocate_dynamic_resource(request)
 738         if resource is None:
 739             raise ResMgrNoResourcesAvailable("No matching resource available for allocation from pool: %s" %(self.name))
 740
 741         requested_params = RwcalYang.VDUInitParams()
 742         requested_params.from_dict(request.as_dict())
 743         resource.requested_params = requested_params
 744         return resource
 745
 746     @asyncio.coroutine
 747     def allocate_dynamic_resource(self, request):
 748         #request.flavor_id = yield from self.select_resource_flavor(request)
 749         resource_id = yield from self._cal.create_virtual_compute(request)
 750         resource = self._resource_class(resource_id, 'dynamic', request)
 751         self._all_resources[resource_id] = resource
 752         self._allocated_resources[resource_id] = resource
 753         self._log.info("Successfully allocated virtual-compute resource from CAL with resource-id: %s", resource_id)
 754         return resource
 755
 756     @asyncio.coroutine
 757     def release_cal_resource(self, resource):
 758         if hasattr(resource, 'requested_params'):
 759             delattr(resource, 'requested_params')
 760         if resource.resource_type == 'dynamic':
 761             yield from self._cal.delete_virtual_compute(resource.resource_id)
 762             self._all_resources.pop(resource.resource_id)
 763             self._log.info("Successfully released virtual-compute resource in CAL with resource-id: %s", resource.resource_id)
 764         else:
 765             self._log.info("Successfully released virtual-compute resource with resource-id: %s into available-list", resource.resource_id)
 766             self._free_resources.append(resource)
 767
 768     @asyncio.coroutine
 769     def get_resource_info(self, resource):
 770         info = yield from self._cal.get_virtual_compute_info(resource.resource_id)
 771
 772         self._log.info("Successfully retrieved virtual-compute information from CAL with resource-id: %s. Info: %s",
 773                        resource.resource_id, str(info))
 774         response = RwResourceMgrYang.VDUEventData_ResourceInfo()
 775         response.from_dict(info.as_dict())
 776         response.pool_name = self.name
 777         response.resource_state = self._get_resource_state(info, resource.requested_params)
 778         return response
 779
 780     @asyncio.coroutine
 781     def get_info_by_id(self, resource_id):
 782         info = yield from self._cal.get_virtual_compute_info(resource_id)
 783         self._log.info("Successfully retrieved virtual-compute information from CAL with resource-id: %s. Info: %s",
 784                        resource_id, str(info))
 785         return info
 786
 787     def _get_resource_state(self, resource_info, requested_params):
 788
 789
 790         def conn_pts_len_equal():
 791             # if explicit mgmt network is defined then the allocated ports might
 792             # one more than the expected.
 793             allocated_ports = len(resource_info.connection_points)
 794             requested_ports = len(requested_params.connection_points)
 795
 796             if not requested_params.mgmt_network:
 797                 allocated_ports -= 1
 798
 799             return allocated_ports == requested_ports
 800
 801         if resource_info.state == 'failed':
 802             self._log.error("<Compute-Resource: %s> Reached failed state.",
 803                             resource_info.name)
 804             return 'failed'
 805
 806         if resource_info.state != 'active':
 807             self._log.info("<Compute-Resource: %s> Not reached active state.",
 808                            resource_info.name)
 809             return 'pending'
 810
 811         if not resource_info.has_field('management_ip') or resource_info.management_ip == '':
 812             self._log.info("<Compute-Resource: %s> Management IP not assigned.",
 813                            resource_info.name)
 814             return 'pending'
 815
 816         if (requested_params.has_field('allocate_public_address')) and (requested_params.allocate_public_address == True):
 817             if not resource_info.has_field('public_ip'):
 818                 self._log.warning("<Compute-Resource: %s> Management IP not assigned- waiting for public ip, %s",
 819                                   resource_info.name, requested_params)
 820                 return 'pending'
 821
 822         if not conn_pts_len_equal():
 823             self._log.warning("<Compute-Resource: %s> Waiting for requested number of ports to be assigned to virtual-compute, requested: %d, assigned: %d",
 824                               resource_info.name,
 825                               len(requested_params.connection_points),
 826                               len(resource_info.connection_points))
 827             return 'pending'
 828
 829         #not_active = [c for c in resource_info.connection_points
 830         #              if c.state != 'active']
 831
 832         #if not_active:
 833         #    self._log.warning("<Compute-Resource: %s> Management IP not assigned- waiting for connection_points , %s",
 834         #                      resource_info.name, resource_info)
 835         #    return 'pending'
 836
 837         ## Find the connection_points which are in active state but does not have IP address
 838         no_address = [c for c in resource_info.connection_points
 839                       if (c.state == 'active') and (not c.has_field('ip_address'))]
 840
 841         if no_address:
 842             self._log.warning("<Compute-Resource: %s> Management IP not assigned- waiting for connection_points , %s",
 843                               resource_info.name, resource_info)
 844             return 'pending'
 845
 846         return 'active'
 847
 848     @asyncio.coroutine
 849     def select_resource_flavor(self, request):
 850         flavors = yield from self._cal.get_compute_flavor_info_list()
 851         self._log.debug("Received %d flavor information from RW.CAL", len(flavors))
 852         flavor_id = None
 853         match_found = False
 854         for flv in flavors:
 855             self._log.info("Attempting to match compute requirement for VDU: %s with flavor %s",
 856                            request.name, flv)
 857             if self.match_epa_params(flv, request):
 858                 self._log.info("Flavor match found for compute requirements for VDU: %s with flavor name: %s, flavor-id: %s",
 859                                request.name, flv.name, flv.id)
 860                 match_found = True
 861                 flavor_id = flv.id
 862                 break
 863
 864         if not match_found:
 865             ### Check if CAL account allows dynamic flavor creation
 866             if self._cal.dynamic_flavor_supported():
 867                 self._log.info("Attempting to create a new flavor for required compute-requirement for VDU: %s", request.name)
 868                 flavor_id = yield from self._cal.create_compute_flavor(request)
 869             else:
 870                 ### No match with existing flavors and CAL does not support dynamic flavor creation
 871                 self._log.error("Unable to create flavor for compute requirement for VDU: %s. VDU instantiation failed", request.name)
 872                 raise ResMgrNoResourcesAvailable("No resource available with matching EPA attributes")
 873         else:
 874             ### Found flavor
 875             self._log.info("Found flavor with id: %s for compute requirement for VDU: %s",
 876                            flavor_id, request.name)
 877         return flavor_id
 878
 879     def _match_vm_flavor(self, required, available):
 880         self._log.info("Matching VM Flavor attributes")
 881         if available.vcpu_count != required.vcpu_count:
 882             self._log.debug("VCPU requirement mismatch. Required: %d, Available: %d",
 883                             required.vcpu_count,
 884                             available.vcpu_count)
 885             return False
 886         if available.memory_mb != required.memory_mb:
 887             self._log.debug("Memory requirement mismatch. Required: %d MB, Available: %d MB",
 888                             required.memory_mb,
 889                             available.memory_mb)
 890             return False
 891         if available.storage_gb != required.storage_gb:
 892             self._log.debug("Storage requirement mismatch. Required: %d GB, Available: %d GB",
 893                             required.storage_gb,
 894                             available.storage_gb)
 895             return False
 896         self._log.debug("VM Flavor match found")
 897         return True
 898
 899     def _match_guest_epa(self, required, available):
 900         self._log.info("Matching Guest EPA attributes")
 901         if required.has_field('pcie_device'):
 902             self._log.debug("Matching pcie_device")
 903             if available.has_field('pcie_device') == False:
 904                 self._log.debug("Matching pcie_device failed. Not available in flavor")
 905                 return False
 906             else:
 907                 for dev in required.pcie_device:
 908                     if not [ d for d in available.pcie_device
 909                              if ((d.device_id == dev.device_id) and (d.count == dev.count)) ]:
 910                         self._log.debug("Matching pcie_device failed. Required: %s, Available: %s", required.pcie_device, available.pcie_device)
 911                         return False
 912         elif available.has_field('pcie_device'):
 913             self._log.debug("Rejecting available flavor because pcie_device not required but available")
 914             return False
 915
 916
 917         if required.has_field('mempage_size'):
 918             self._log.debug("Matching mempage_size")
 919             if available.has_field('mempage_size') == False:
 920                 self._log.debug("Matching mempage_size failed. Not available in flavor")
 921                 return False
 922             else:
 923                 if required.mempage_size != available.mempage_size:
 924                     self._log.debug("Matching mempage_size failed. Required: %s, Available: %s", required.mempage_size, available.mempage_size)
 925                     return False
 926         elif available.has_field('mempage_size'):
 927             self._log.debug("Rejecting available flavor because mempage_size not required but available")
 928             return False
 929
 930         if required.has_field('cpu_pinning_policy'):
 931             self._log.debug("Matching cpu_pinning_policy")
 932             if required.cpu_pinning_policy != 'ANY':
 933                 if available.has_field('cpu_pinning_policy') == False:
 934                     self._log.debug("Matching cpu_pinning_policy failed. Not available in flavor")
 935                     return False
 936                 else:
 937                     if required.cpu_pinning_policy != available.cpu_pinning_policy:
 938                         self._log.debug("Matching cpu_pinning_policy failed. Required: %s, Available: %s", required.cpu_pinning_policy, available.cpu_pinning_policy)
 939                         return False
 940         elif available.has_field('cpu_pinning_policy'):
 941             self._log.debug("Rejecting available flavor because cpu_pinning_policy not required but available")
 942             return False
 943
 944         if required.has_field('cpu_thread_pinning_policy'):
 945             self._log.debug("Matching cpu_thread_pinning_policy")
 946             if available.has_field('cpu_thread_pinning_policy') == False:
 947                 self._log.debug("Matching cpu_thread_pinning_policy failed. Not available in flavor")
 948                 return False
 949             else:
 950                 if required.cpu_thread_pinning_policy != available.cpu_thread_pinning_policy:
 951                     self._log.debug("Matching cpu_thread_pinning_policy failed. Required: %s, Available: %s", required.cpu_thread_pinning_policy, available.cpu_thread_pinning_policy)
 952                     return False
 953         elif available.has_field('cpu_thread_pinning_policy'):
 954             self._log.debug("Rejecting available flavor because cpu_thread_pinning_policy not required but available")
 955             return False
 956
 957         if required.has_field('trusted_execution'):
 958             self._log.debug("Matching trusted_execution")
 959             if required.trusted_execution == True:
 960                 if available.has_field('trusted_execution') == False:
 961                     self._log.debug("Matching trusted_execution failed. Not available in flavor")
 962                     return False
 963                 else:
 964                     if required.trusted_execution != available.trusted_execution:
 965                         self._log.debug("Matching trusted_execution failed. Required: %s, Available: %s", required.trusted_execution, available.trusted_execution)
 966                         return False
 967         elif available.has_field('trusted_execution'):
 968             self._log.debug("Rejecting available flavor because trusted_execution not required but available")
 969             return False
 970
 971         if required.has_field('numa_node_policy'):
 972             self._log.debug("Matching numa_node_policy")
 973             if available.has_field('numa_node_policy') == False:
 974                 self._log.debug("Matching numa_node_policy failed. Not available in flavor")
 975                 return False
 976             else:
 977                 if required.numa_node_policy.has_field('node_cnt'):
 978                     self._log.debug("Matching numa_node_policy node_cnt")
 979                     if available.numa_node_policy.has_field('node_cnt') == False:
 980                         self._log.debug("Matching numa_node_policy node_cnt failed. Not available in flavor")
 981                         return False
 982                     else:
 983                         if required.numa_node_policy.node_cnt != available.numa_node_policy.node_cnt:
 984                             self._log.debug("Matching numa_node_policy node_cnt failed. Required: %s, Available: %s",required.numa_node_policy.node_cnt, available.numa_node_policy.node_cnt)
 985                             return False
 986                 elif available.numa_node_policy.has_field('node_cnt'):
 987                     self._log.debug("Rejecting available flavor because numa node count not required but available")
 988                     return False
 989
 990                 if required.numa_node_policy.has_field('mem_policy'):
 991                     self._log.debug("Matching numa_node_policy mem_policy")
 992                     if available.numa_node_policy.has_field('mem_policy') == False:
 993                         self._log.debug("Matching numa_node_policy mem_policy failed. Not available in flavor")
 994                         return False
 995                     else:
 996                         if required.numa_node_policy.mem_policy != available.numa_node_policy.mem_policy:
 997                             self._log.debug("Matching numa_node_policy mem_policy failed. Required: %s, Available: %s", required.numa_node_policy.mem_policy, available.numa_node_policy.mem_policy)
 998                             return False
 999                 elif available.numa_node_policy.has_field('mem_policy'):
1000                     self._log.debug("Rejecting available flavor because num node mem_policy not required but available")
1001                     return False
1002
1003                 if required.numa_node_policy.has_field('node'):
1004                     self._log.debug("Matching numa_node_policy nodes configuration")
1005                     if available.numa_node_policy.has_field('node') == False:
1006                         self._log.debug("Matching numa_node_policy nodes configuration failed. Not available in flavor")
1007                         return False
1008                     for required_node in required.numa_node_policy.node:
1009                         self._log.debug("Matching numa_node_policy nodes configuration for node %s", required_node)
1010                         numa_match = False
1011                         for available_node in available.numa_node_policy.node:
1012                             if required_node.id != available_node.id:
1013                                 self._log.debug("Matching numa_node_policy nodes configuration failed. Required: %s, Available: %s", required_node, available_node)
1014                                 continue
1015                             if required_node.vcpu != available_node.vcpu:
1016                                 self._log.debug("Matching numa_node_policy nodes configuration failed. Required: %s, Available: %s", required_node, available_node)
1017                                 continue
1018                             if required_node.memory_mb != available_node.memory_mb:
1019                                 self._log.debug("Matching numa_node_policy nodes configuration failed. Required: %s, Available: %s", required_node, available_node)
1020                                 continue
1021                             numa_match = True
1022                         if numa_match == False:
1023                             return False
1024                 elif available.numa_node_policy.has_field('node'):
1025                     self._log.debug("Rejecting available flavor because numa nodes not required but available")
1026                     return False
1027         elif available.has_field('numa_node_policy'):
1028             self._log.debug("Rejecting available flavor because numa_node_policy not required but available")
1029             return False
1030         self._log.info("Successful match for Guest EPA attributes")
1031         return True
1032
1033     def _match_vswitch_epa(self, required, available):
1034         self._log.debug("VSwitch EPA match found")
1035         return True
1036
1037     def _match_hypervisor_epa(self, required, available):
1038         self._log.debug("Hypervisor EPA match found")
1039         return True
1040
1041     def _match_host_epa(self, required, available):
1042         self._log.info("Matching Host EPA attributes")
1043         if required.has_field('cpu_model'):
1044             self._log.debug("Matching CPU model")
1045             if available.has_field('cpu_model') == False:
1046                 self._log.debug("Matching CPU model failed. Not available in flavor")
1047                 return False
1048             else:
1049                 #### Convert all PREFER to REQUIRE since flavor will only have REQUIRE attributes
1050                 if required.cpu_model.replace('PREFER', 'REQUIRE') != available.cpu_model:
1051                     self._log.debug("Matching CPU model failed. Required: %s, Available: %s", required.cpu_model, available.cpu_model)
1052                     return False
1053         elif available.has_field('cpu_model'):
1054             self._log.debug("Rejecting available flavor because cpu_model not required but available")
1055             return False
1056
1057         if required.has_field('cpu_arch'):
1058             self._log.debug("Matching CPU architecture")
1059             if available.has_field('cpu_arch') == False:
1060                 self._log.debug("Matching CPU architecture failed. Not available in flavor")
1061                 return False
1062             else:
1063                 #### Convert all PREFER to REQUIRE since flavor will only have REQUIRE attributes
1064                 if required.cpu_arch.replace('PREFER', 'REQUIRE') != available.cpu_arch:
1065                     self._log.debug("Matching CPU architecture failed. Required: %s, Available: %s", required.cpu_arch, available.cpu_arch)
1066                     return False
1067         elif available.has_field('cpu_arch'):
1068             self._log.debug("Rejecting available flavor because cpu_arch not required but available")
1069             return False
1070
1071         if required.has_field('cpu_vendor'):
1072             self._log.debug("Matching CPU vendor")
1073             if available.has_field('cpu_vendor') == False:
1074                 self._log.debug("Matching CPU vendor failed. Not available in flavor")
1075                 return False
1076             else:
1077                 #### Convert all PREFER to REQUIRE since flavor will only have REQUIRE attributes
1078                 if required.cpu_vendor.replace('PREFER', 'REQUIRE') != available.cpu_vendor:
1079                     self._log.debug("Matching CPU vendor failed. Required: %s, Available: %s", required.cpu_vendor, available.cpu_vendor)
1080                     return False
1081         elif available.has_field('cpu_vendor'):
1082             self._log.debug("Rejecting available flavor because cpu_vendor not required but available")
1083             return False
1084
1085         if required.has_field('cpu_socket_count'):
1086             self._log.debug("Matching CPU socket count")
1087             if available.has_field('cpu_socket_count') == False:
1088                 self._log.debug("Matching CPU socket count failed. Not available in flavor")
1089                 return False
1090             else:
1091                 if required.cpu_socket_count != available.cpu_socket_count:
1092                     self._log.debug("Matching CPU socket count failed. Required: %s, Available: %s", required.cpu_socket_count, available.cpu_socket_count)
1093                     return False
1094         elif available.has_field('cpu_socket_count'):
1095             self._log.debug("Rejecting available flavor because cpu_socket_count not required but available")
1096             return False
1097
1098         if required.has_field('cpu_core_count'):
1099             self._log.debug("Matching CPU core count")
1100             if available.has_field('cpu_core_count') == False:
1101                 self._log.debug("Matching CPU core count failed. Not available in flavor")
1102                 return False
1103             else:
1104                 if required.cpu_core_count != available.cpu_core_count:
1105                     self._log.debug("Matching CPU core count failed. Required: %s, Available: %s", required.cpu_core_count, available.cpu_core_count)
1106                     return False
1107         elif available.has_field('cpu_core_count'):
1108             self._log.debug("Rejecting available flavor because cpu_core_count not required but available")
1109             return False
1110
1111         if required.has_field('cpu_core_thread_count'):
1112             self._log.debug("Matching CPU core thread count")
1113             if available.has_field('cpu_core_thread_count') == False:
1114                 self._log.debug("Matching CPU core thread count failed. Not available in flavor")
1115                 return False
1116             else:
1117                 if required.cpu_core_thread_count != available.cpu_core_thread_count:
1118                     self._log.debug("Matching CPU core thread count failed. Required: %s, Available: %s", required.cpu_core_thread_count, available.cpu_core_thread_count)
1119                     return False
1120         elif available.has_field('cpu_core_thread_count'):
1121             self._log.debug("Rejecting available flavor because cpu_core_thread_count not required but available")
1122             return False
1123
1124         if required.has_field('cpu_feature'):
1125             self._log.debug("Matching CPU feature list")
1126             if available.has_field('cpu_feature') == False:
1127                 self._log.debug("Matching CPU feature list failed. Not available in flavor")
1128                 return False
1129             else:
1130                 for feature in required.cpu_feature:
1131                     if feature not in available.cpu_feature:
1132                         self._log.debug("Matching CPU feature list failed. Required feature: %s is not present. Available features: %s", feature, available.cpu_feature)
1133                         return False
1134         elif available.has_field('cpu_feature'):
1135             self._log.debug("Rejecting available flavor because cpu_feature not required but available")
1136             return False
1137         self._log.info("Successful match for Host EPA attributes")
1138         return True
1139
1140
1141     def _match_placement_group_inputs(self, required, available):
1142         self._log.info("Matching Host aggregate attributes")
1143
1144         if not required and not available:
1145             # Host aggregate not required and not available => success
1146             self._log.info("Successful match for Host Aggregate attributes")
1147             return True
1148         if required and available:
1149             # Host aggregate requested and available => Do a match and decide
1150             xx = [ x.as_dict() for x in required ]
1151             yy = [ y.as_dict() for y in available ]
1152             for i in xx:
1153                 if i not in yy:
1154                     self._log.debug("Rejecting available flavor because host Aggregate mismatch. Required: %s, Available: %s ", required, available)
1155                     return False
1156             self._log.info("Successful match for Host Aggregate attributes")
1157             return True
1158         else:
1159             # Either of following conditions => Failure
1160             #  - Host aggregate required but not available
1161             #  - Host aggregate not required but available
1162             self._log.debug("Rejecting available flavor because host Aggregate mismatch. Required: %s, Available: %s ", required, available)
1163             return False
1164
1165
1166     def match_image_params(self, resource_info, request_params):
1167         return True
1168
1169     def match_epa_params(self, resource_info, request_params):
1170         result = self._match_vm_flavor(getattr(request_params, 'vm_flavor'),
1171                                        getattr(resource_info, 'vm_flavor'))
1172         if result == False:
1173             self._log.debug("VM Flavor mismatched")
1174             return False
1175
1176         result = self._match_guest_epa(getattr(request_params, 'guest_epa'),
1177                                        getattr(resource_info, 'guest_epa'))
1178         if result == False:
1179             self._log.debug("Guest EPA mismatched")
1180             return False
1181
1182         result = self._match_vswitch_epa(getattr(request_params, 'vswitch_epa'),
1183                                          getattr(resource_info, 'vswitch_epa'))
1184         if result == False:
1185             self._log.debug("Vswitch EPA mismatched")
1186             return False
1187
1188         result = self._match_hypervisor_epa(getattr(request_params, 'hypervisor_epa'),
1189                                             getattr(resource_info, 'hypervisor_epa'))
1190         if result == False:
1191             self._log.debug("Hypervisor EPA mismatched")
1192             return False
1193
1194         result = self._match_host_epa(getattr(request_params, 'host_epa'),
1195                                       getattr(resource_info, 'host_epa'))
1196         if result == False:
1197             self._log.debug("Host EPA mismatched")
1198             return False
1199
1200         result = self._match_placement_group_inputs(getattr(request_params, 'host_aggregate'),
1201                                                     getattr(resource_info, 'host_aggregate'))
1202
1203         if result == False:
1204             self._log.debug("Host Aggregate mismatched")
1205             return False
1206
1207         return True
1208
1209     @asyncio.coroutine
1210     def initialize_resource_in_cal(self, resource, request):
1211         self._log.info("Initializing the compute-resource with id: %s in RW.CAL", resource.resource_id)
1212         modify_params = RwcalYang.VDUModifyParams()
1213         modify_params.vdu_id = resource.resource_id
1214         modify_params.image_id = request.image_id
1215
1216         for c_point in request.connection_points:
1217             self._log.debug("Adding connection point for VDU: %s to virtual-compute with id: %s  Connection point Name: %s",
1218                             request.name,resource.resource_id,c_point.name)
1219             point = modify_params.connection_points_add.add()
1220             point.name = c_point.name
1221             point.virtual_link_id = c_point.virtual_link_id
1222         yield from self._cal.modify_virtual_compute(modify_params)
1223
1224     @asyncio.coroutine
1225     def uninitialize_resource_in_cal(self, resource):
1226         self._log.info("Un-initializing the compute-resource with id: %s in RW.CAL", resource.resource_id)
1227         modify_params = RwcalYang.VDUModifyParams()
1228         modify_params.vdu_id = resource.resource_id
1229         resource_info =  yield from self.get_resource_info(resource)
1230         for c_point in resource_info.connection_points:
1231             self._log.debug("Removing connection point: %s from VDU: %s ",
1232                             c_point.name,resource_info.name)
1233             point = modify_params.connection_points_remove.add()
1234             point.connection_point_id = c_point.connection_point_id
1235         yield from self._cal.modify_virtual_compute(modify_params)
1236
1237
1238 class ResourceMgrCore(object):
1239     def __init__(self, dts, log, log_hdl, loop, parent):
1240         self._log = log
1241         self._log_hdl = log_hdl
1242         self._dts = dts
1243         self._loop = loop
1244         self._executor = concurrent.futures.ThreadPoolExecutor(max_workers=1)
1245         self._parent = parent
1246         self._cloud_cals = {}
1247         # Dictionary of pool objects keyed by name
1248         self._cloud_pool_table = {}
1249         # Dictionary of tuples (resource_id, cloud_account_name, pool_name) keyed by event_id
1250         self._resource_table = {}
1251         self._pool_class = {'compute': ComputePool,
1252                             'network': NetworkPool}
1253
1254     def _get_cloud_pool_table(self, cloud_account_name):
1255         if cloud_account_name not in self._cloud_pool_table:
1256             msg = "Cloud account %s not found" % cloud_account_name
1257             self._log.error(msg)
1258             raise ResMgrCloudAccountNotFound(msg)
1259
1260         return self._cloud_pool_table[cloud_account_name]
1261
1262     def _get_cloud_cal_plugin(self, cloud_account_name):
1263         if cloud_account_name not in self._cloud_cals:
1264             msg = "Cloud account %s not found" % cloud_account_name
1265             self._log.error(msg)
1266             raise ResMgrCloudAccountNotFound(msg)
1267
1268         return self._cloud_cals[cloud_account_name]
1269
1270     def _add_default_cloud_pools(self, cloud_account_name):
1271         self._log.debug("Adding default compute and network pools for cloud account %s",
1272                         cloud_account_name)
1273         default_pools = [
1274                     {
1275                         'name': '____default_compute_pool',
1276                         'resource_type': 'compute',
1277                         'pool_type': 'dynamic',
1278                         'max_size': 128,
1279                     },
1280                     {
1281                         'name': '____default_network_pool',
1282                         'resource_type': 'network',
1283                         'pool_type': 'dynamic',
1284                         'max_size': 128,
1285                     },
1286                 ]
1287
1288         for pool_dict in default_pools:
1289             pool_info = ResourcePoolInfo.from_dict(pool_dict)
1290             self._log.info("Applying configuration for cloud account %s pool: %s",
1291                            cloud_account_name, pool_info.name)
1292
1293             self.add_resource_pool(cloud_account_name, pool_info)
1294             self.unlock_resource_pool(cloud_account_name, pool_info.name)
1295
1296     def get_cloud_account_names(self):
1297         """ Returns a list of configured cloud account names """
1298         return self._cloud_cals.keys()
1299
1300     def add_cloud_account(self, account):
1301         self._log.debug("Received CAL account. Account Name: %s, Account Type: %s",
1302                         account.name, account.account_type)
1303
1304         ### Add cal handler to all the pools
1305         if account.name in self._cloud_cals:
1306             raise ResMgrCloudAccountExists("Cloud account already exists in res mgr: %s",
1307                                            account.name)
1308
1309         self._cloud_pool_table[account.name] = {}
1310
1311         cal = ResourceMgrCALHandler(self._loop, self._executor, self._log, self._log_hdl, account)
1312         self._cloud_cals[account.name] = cal
1313
1314         self._add_default_cloud_pools(account.name)
1315
1316     def update_cloud_account(self, account):
1317         raise NotImplementedError("Update cloud account not implemented")
1318
1319     def delete_cloud_account(self, account_name, dry_run=False):
1320         cloud_pool_table = self._get_cloud_pool_table(account_name)
1321         for pool in cloud_pool_table.values():
1322             if pool.in_use():
1323                 raise ResMgrCloudAccountInUse("Cannot delete cloud which is currently in use")
1324
1325         # If dry_run is specified, do not actually delete the cloud account
1326         if dry_run:
1327             return
1328
1329         for pool in list(cloud_pool_table):
1330             self.delete_resource_pool(account_name, pool)
1331
1332         del self._cloud_pool_table[account_name]
1333         del self._cloud_cals[account_name]
1334
1335     def add_resource_pool(self, cloud_account_name, pool_info):
1336         cloud_pool_table = self._get_cloud_pool_table(cloud_account_name)
1337         if pool_info.name in cloud_pool_table:
1338             raise ResMgrDuplicatePool("Pool with name: %s already exists", pool_info.name)
1339
1340         cloud_cal = self._get_cloud_cal_plugin(cloud_account_name)
1341         pool = self._pool_class[pool_info.resource_type](self._log, self._loop, pool_info, cloud_cal)
1342
1343         cloud_pool_table[pool_info.name] = pool
1344
1345     def delete_resource_pool(self, cloud_account_name, pool_name):
1346         cloud_pool_table = self._get_cloud_pool_table(cloud_account_name)
1347         if pool_name not in cloud_pool_table:
1348             self._log.error("Pool: %s not found for deletion", pool_name)
1349             return
1350         pool = cloud_pool_table[pool_name]
1351
1352         if pool.in_use():
1353             # Can't delete a pool in use
1354             self._log.error("Pool: %s in use. Can not delete in-use pool", pool.name)
1355             return
1356
1357         pool.cleanup()
1358         del cloud_pool_table[pool_name]
1359         self._log.info("Resource Pool: %s successfully deleted", pool_name)
1360
1361     def modify_resource_pool(self, cloud_account_name, pool):
1362         pass
1363
1364     def lock_resource_pool(self, cloud_account_name, pool_name):
1365         cloud_pool_table = self._get_cloud_pool_table(cloud_account_name)
1366         if pool_name not in cloud_pool_table:
1367             self._log.info("Pool: %s is not available for lock operation")
1368             return
1369
1370         pool = cloud_pool_table[pool_name]
1371         pool.lock_pool()
1372
1373     def unlock_resource_pool(self, cloud_account_name, pool_name):
1374         cloud_pool_table = self._get_cloud_pool_table(cloud_account_name)
1375         if pool_name not in cloud_pool_table:
1376             self._log.info("Pool: %s is not available for unlock operation")
1377             return
1378
1379         pool = cloud_pool_table[pool_name]
1380         pool.unlock_pool()
1381
1382     def get_resource_pool_info(self, cloud_account_name, pool_name):
1383         cloud_pool_table = self._get_cloud_pool_table(cloud_account_name)
1384         if pool_name in cloud_pool_table:
1385             pool = cloud_pool_table[pool_name]
1386             return pool.get_pool_info()
1387         else:
1388             return None
1389
1390     def get_resource_pool_list(self, cloud_account_name):
1391         return [v for _, v in self._get_cloud_pool_table(cloud_account_name).items()]
1392
1393     def _select_resource_pools(self, cloud_account_name, resource_type):
1394         pools = [pool for pool in self.get_resource_pool_list(cloud_account_name) if pool.resource_type == resource_type and pool.status == 'unlocked']
1395         if not pools:
1396             raise ResMgrPoolNotAvailable("No %s pool found for resource allocation", resource_type)
1397
1398         return pools[0]
1399
1400     @asyncio.coroutine
1401     def allocate_virtual_resource(self, event_id, cloud_account_name, request, resource_type):
1402         ### Check if event_id is unique or already in use
1403         if event_id in self._resource_table:
1404             r_id, cloud_account_name, pool_name = self._resource_table[event_id]
1405             self._log.warning("Requested event-id :%s for resource-allocation already active with pool: %s",
1406                               event_id, pool_name)
1407             # If resource-type matches then return the same resource
1408             cloud_pool_table = self._get_cloud_pool_table(cloud_account_name)
1409             pool = cloud_pool_table[pool_name]
1410             if pool.resource_type == resource_type:
1411
1412                 info = yield from pool.read_resource_info(r_id)
1413                 return info
1414             else:
1415                 self._log.error("Event-id conflict. Duplicate event-id: %s", event_id)
1416                 raise ResMgrDuplicateEventId("Requested event-id :%s already active with pool: %s" %(event_id, pool_name))
1417
1418         ### All-OK, lets go ahead with resource allocation
1419         pool = self._select_resource_pools(cloud_account_name, resource_type)
1420         self._log.info("Selected pool %s for resource allocation", pool.name)
1421
1422         r_id, r_info = yield from pool.allocate_resource(request)
1423
1424         self._resource_table[event_id] = (r_id, cloud_account_name, pool.name)
1425         return r_info
1426
1427     @asyncio.coroutine
1428     def reallocate_virtual_resource(self, event_id, cloud_account_name, request, resource_type, resource):
1429         ### Check if event_id is unique or already in use
1430         if event_id in self._resource_table:
1431             r_id, cloud_account_name, pool_name = self._resource_table[event_id]
1432             self._log.warning("Requested event-id :%s for resource-allocation already active with pool: %s",
1433                               event_id, pool_name)
1434             # If resource-type matches then return the same resource
1435             cloud_pool_table = self._get_cloud_pool_table(cloud_account_name)
1436             pool = cloud_pool_table[pool_name]
1437             if pool.resource_type == resource_type:
1438                 info = yield from pool.read_resource_info(r_id)
1439                 return info
1440             else:
1441                 self._log.error("Event-id conflict. Duplicate event-id: %s", event_id)
1442                 raise ResMgrDuplicateEventId("Requested event-id :%s already active with pool: %s" %(event_id, pool_name))
1443
1444         r_info = None
1445         cloud_pool_table = self._get_cloud_pool_table(cloud_account_name)
1446         pool = cloud_pool_table[resource.pool_name]
1447         if pool.resource_type == resource_type:
1448             if resource_type == 'network':
1449               r_id = resource.virtual_link_id
1450               r_info = yield from pool.get_info_by_id(resource.virtual_link_id)
1451             elif resource_type == 'compute':
1452               r_id = resource.vdu_id
1453               r_info = yield from pool.get_info_by_id(resource.vdu_id)
1454
1455         if r_info is None:
1456             r_id, r_info = yield from pool.allocate_resource(request)
1457             self._resource_table[event_id] = (r_id, cloud_account_name, resource.pool_name)
1458             return r_info
1459
1460         self._resource_table[event_id] = (r_id, cloud_account_name, resource.pool_name)
1461         new_resource = pool._resource_class(r_id, 'dynamic', request)
1462         if resource_type == 'compute':
1463             requested_params = RwcalYang.VDUInitParams()
1464             requested_params.from_dict(request.as_dict())
1465             new_resource.requested_params = requested_params
1466         pool._all_resources[r_id] = new_resource
1467         pool._allocated_resources[r_id] = new_resource
1468         return r_info
1469
1470     @asyncio.coroutine
1471     def release_virtual_resource(self, event_id, resource_type):
1472         ### Check if event_id exists
1473         if event_id not in self._resource_table:
1474             self._log.error("Received resource-release-request with unknown Event-id :%s", event_id)
1475             raise ResMgrUnknownEventId("Received resource-release-request with unknown Event-id :%s" %(event_id))
1476
1477         ## All-OK, lets proceed with resource release
1478         r_id, cloud_account_name, pool_name = self._resource_table.pop(event_id)
1479         self._log.debug("Attempting to release virtual resource id %s from pool %s",
1480                         r_id, pool_name)
1481
1482         cloud_pool_table = self._get_cloud_pool_table(cloud_account_name)
1483         pool = cloud_pool_table[pool_name]
1484         yield from pool.release_resource(r_id)
1485
1486     @asyncio.coroutine
1487     def read_virtual_resource(self, event_id, resource_type):
1488         ### Check if event_id exists
1489         if event_id not in self._resource_table:
1490             self._log.error("Received resource-read-request with unknown Event-id :%s", event_id)
1491             raise ResMgrUnknownEventId("Received resource-read-request with unknown Event-id :%s" %(event_id))
1492
1493         ## All-OK, lets proceed
1494         r_id, cloud_account_name, pool_name = self._resource_table[event_id]
1495         cloud_pool_table = self._get_cloud_pool_table(cloud_account_name)
1496         pool = cloud_pool_table[pool_name]
1497         info = yield from pool.read_resource_info(r_id)
1498         return info