sfa/senslab/slabslices.py

   1 from sfa.util.xrn import get_authority, urn_to_hrn
   2 from sfa.util.sfalogging import logger
   3
   4
   5 MAXINT =  2L**31-1
   6
   7 class SlabSlices:
   8
   9     rspec_to_slice_tag = {'max_rate':'net_max_rate'}
  10
  11     #def __init__(self, api, ttl = .5, origin_hrn=None):
  12         #self.api = api
  13         ##filepath = path + os.sep + filename
  14         #self.policy = Policy(self.api)
  15         #self.origin_hrn = origin_hrn
  16         #self.registry = api.registries[api.hrn]
  17         #self.credential = api.getCredential()
  18         #self.nodes = []
  19         #self.persons = []
  20
  21
  22     def __init__(self, driver):
  23         self.driver = driver
  24
  25     ##Used in SFACE?
  26     #def get_slivers(self, xrn, node=None):
  27         #hrn, hrn_type = urn_to_hrn(xrn)
  28
  29         #slice_name = hrn_to_pl_slicename(hrn)
  30         ## XX Should we just call PLCAPI.GetSliceTicket(slice_name) instead
  31         ## of doing all of this?
  32         ##return self.api.driver.GetSliceTicket(self.auth, slice_name)
  33
  34
  35
  36         #sfa_slice = self.driver.GetSlices(slice_filter = slice_name, \
  37         #                                   slice_filter_type = 'slice_hrn')
  38
  39
  40         ## Get user information
  41         ##TODO
  42         #alchemy_person = dbsession.query(RegRecord).filter_by(record_id = \
  43                                         #sfa_slice['record_id_user']).first()
  44
  45         #slivers = []
  46         #sliver_attributes = []
  47
  48         #if sfa_slice['oar_job_id'] is not -1:
  49             #nodes_all = self.driver.GetNodes({'hostname': \
  50                                                     #sfa_slice['node_ids']},
  51                             #['node_id', 'hostname','site','boot_state'])
  52             #nodeall_byhostname = dict([(n['hostname'], n) for n in nodes_all])
  53             #nodes = sfa_slice['node_ids']
  54
  55             #for node in nodes:
  56                 ##for sliver_attribute in filter(lambda a: a['node_id'] == \
  57                                                 #node['node_id'], slice_tags):
  58                 #sliver_attribute['tagname'] = 'slab-tag'
  59                 #sliver_attribute['value'] = 'slab-value'
  60                 #sliver_attributes.append(sliver_attribute['tagname'])
  61                 #attributes.append({'tagname': sliver_attribute['tagname'],
  62                                     #'value': sliver_attribute['value']})
  63
  64             ## set nodegroup slice attributes
  65             #for slice_tag in filter(lambda a: a['nodegroup_id'] \
  66                                         #in node['nodegroup_ids'], slice_tags):
  67                 ## Do not set any nodegroup slice attributes for
  68                 ## which there is at least one sliver attribute
  69                 ## already set.
  70                 #if slice_tag not in slice_tags:
  71                     #attributes.append({'tagname': slice_tag['tagname'],
  72                         #'value': slice_tag['value']})
  73
  74             #for slice_tag in filter(lambda a: a['node_id'] is None, \
  75                                                             #slice_tags):
  76                 ## Do not set any global slice attributes for
  77                 ## which there is at least one sliver attribute
  78                 ## already set.
  79                 #if slice_tag['tagname'] not in sliver_attributes:
  80                     #attributes.append({'tagname': slice_tag['tagname'],
  81                                    #'value': slice_tag['value']})
  82
  83             ## XXX Sanity check; though technically this should
  84             ## be a system invariant
  85             ## checked with an assertion
  86             #if sfa_slice['expires'] > MAXINT:  sfa_slice['expires']= MAXINT
  87
  88             #slivers.append({
  89                 #'hrn': hrn,
  90                 #'name': sfa_slice['name'],
  91                 #'slice_id': sfa_slice['slice_id'],
  92                 #'instantiation': sfa_slice['instantiation'],
  93                 #'expires': sfa_slice['expires'],
  94                 #'keys': keys,
  95                 #'attributes': attributes
  96             #})
  97
  98         #return slivers
  99
 100
 101
 102
 103
 104         #return slivers
 105     def get_peer(self, xrn):
 106         hrn, hrn_type = urn_to_hrn(xrn)
 107         #Does this slice belong to a local site or a peer senslab site?
 108         peer = None
 109
 110         # get this slice's authority (site)
 111         slice_authority = get_authority(hrn)
 112         site_authority = slice_authority
 113         # get this site's authority (sfa root authority or sub authority)
 114         #site_authority = get_authority(slice_authority).lower()
 115         logger.debug("SLABSLICES \ get_peer slice_authority  %s \
 116                     site_authority %s hrn %s" %(slice_authority, \
 117                                         site_authority, hrn))
 118         # check if we are already peered with this site_authority, if so
 119         #peers = self.driver.GetPeers({})
 120         peers = self.driver.GetPeers(peer_filter = slice_authority)
 121         for peer_record in peers:
 122
 123             if site_authority == peer_record.hrn:
 124                 peer = peer_record
 125         logger.debug(" SLABSLICES \tget_peer peer  %s " %(peer))
 126         return peer
 127
 128     def get_sfa_peer(self, xrn):
 129         hrn, hrn_type = urn_to_hrn(xrn)
 130
 131         # return the authority for this hrn or None if we are the authority
 132         sfa_peer = None
 133         slice_authority = get_authority(hrn)
 134         site_authority = get_authority(slice_authority)
 135
 136         if site_authority != self.driver.hrn:
 137             sfa_peer = site_authority
 138
 139         return sfa_peer
 140
 141
 142     def verify_slice_leases(self, sfa_slice, requested_leases, kept_leases, \
 143         peer):
 144
 145         leases = self.driver.GetLeases({'name':sfa_slice['name']}, ['lease_id'])
 146         grain = self.driver.GetLeaseGranularity()
 147         if leases :
 148             current_leases = [lease['lease_id'] for lease in leases]
 149             deleted_leases = list(set(current_leases).difference(kept_leases))
 150
 151             try:
 152                 if peer:
 153                     self.driver.UnBindObjectFromPeer('slice', \
 154                                     sfa_slice['slice_id'], peer['shortname'])
 155                 deleted = self.driver.DeleteLeases(deleted_leases)
 156                 for lease in requested_leases:
 157                     added = self.driver.AddLeases(lease['hostname'], \
 158                             sfa_slice['name'], int(lease['start_time']), \
 159                             int(lease['duration']))
 160             #TODO : catch other exception?
 161             except KeyError:
 162                 logger.log_exc('Failed to add/remove slice leases')
 163
 164         return leases
 165
 166     def verify_slice_nodes(self, sfa_slice, requested_slivers, peer):
 167         current_slivers = []
 168         deleted_nodes = []
 169
 170         if sfa_slice['node_ids']:
 171             nodes = self.driver.GetNodes(sfa_slice['node_ids'], ['hostname'])
 172             current_slivers = [node['hostname'] for node in nodes]
 173
 174             # remove nodes not in rspec
 175             deleted_nodes = list(set(current_slivers).\
 176                                                 difference(requested_slivers))
 177
 178         # add nodes from rspec
 179         added_nodes = list(set(requested_slivers).difference(current_slivers))
 180         try:
 181             #if peer:
 182                 #self.driver.UnBindObjectFromPeer('slice', slice['slice_id'], \
 183                                                         #peer['shortname'])
 184             #PI is a list, get the only username in this list
 185             #so that the OAR/LDAP knows the user:
 186             #remove the authority from the name
 187             tmp = sfa_slice['PI'][0].split(".")
 188             username = tmp[(len(tmp)-1)]
 189             #Update the table with the nodes that populate the slice
 190             self.driver.db.update_job(sfa_slice['name'], nodes = added_nodes)
 191             logger.debug("SLABSLICES \tverify_slice_nodes slice %s "\
 192                                                              %(sfa_slice))
 193             #If there is a timeslot specified, then a job can be launched
 194             try:
 195                 #slot = sfa_slice['timeslot']
 196                 self.driver.LaunchExperimentOnOAR(sfa_slice, added_nodes, \
 197                                                                     username)
 198             except KeyError:
 199                 logger.log_exc("SLABSLICES \verify_slice_nodes KeyError \
 200                                                 sfa_slice %s  " %(sfa_slice))
 201
 202
 203             if deleted_nodes:
 204                 self.driver.DeleteSliceFromNodes(sfa_slice['name'], \
 205                                                                 deleted_nodes)
 206
 207         except:
 208             logger.log_exc('Failed to add/remove slice from nodes')
 209
 210
 211     def free_egre_key(self):
 212         used = set()
 213         for tag in self.driver.GetSliceTags({'tagname': 'egre_key'}):
 214             used.add(int(tag['value']))
 215
 216         for i in range(1, 256):
 217             if i not in used:
 218                 key = i
 219                 break
 220         else:
 221             raise KeyError("No more EGRE keys available")
 222
 223         return str(key)
 224
 225
 226
 227
 228
 229
 230     def handle_peer(self, site, sfa_slice, persons, peer):
 231         if peer:
 232             # bind site
 233             try:
 234                 if site:
 235                     self.driver.BindObjectToPeer('site', site['site_id'], \
 236                                         peer['shortname'], sfa_slice['site_id'])
 237             except Exception, error:
 238                 self.driver.DeleteSite(site['site_id'])
 239                 raise error
 240
 241             # bind slice
 242             try:
 243                 if sfa_slice:
 244                     self.driver.BindObjectToPeer('slice', slice['slice_id'], \
 245                                     peer['shortname'], sfa_slice['slice_id'])
 246             except Exception, error:
 247                 self.driver.DeleteSlice(sfa_slice['slice_id'])
 248                 raise error
 249
 250             # bind persons
 251             for person in persons:
 252                 try:
 253                     self.driver.BindObjectToPeer('person', \
 254                                     person['person_id'], peer['shortname'], \
 255                                     person['peer_person_id'])
 256
 257                     for (key, remote_key_id) in zip(person['keys'], \
 258                                                         person['key_ids']):
 259                         try:
 260                             self.driver.BindObjectToPeer( 'key', \
 261                                             key['key_id'], peer['shortname'], \
 262                                             remote_key_id)
 263                         except:
 264                             self.driver.DeleteKey(key['key_id'])
 265                             logger.log_exc("failed to bind key: %s \
 266                                             to peer: %s " % (key['key_id'], \
 267                                             peer['shortname']))
 268                 except Exception, error:
 269                     self.driver.DeletePerson(person['person_id'])
 270                     raise error
 271
 272         return sfa_slice
 273
 274     #def verify_site(self, slice_xrn, slice_record={}, peer=None, \
 275                                         #sfa_peer=None, options={}):
 276         #(slice_hrn, type) = urn_to_hrn(slice_xrn)
 277         #site_hrn = get_authority(slice_hrn)
 278         ## login base can't be longer than 20 characters
 279         ##slicename = hrn_to_pl_slicename(slice_hrn)
 280         #authority_name = slice_hrn.split('.')[0]
 281         #login_base = authority_name[:20]
 282         #logger.debug(" SLABSLICES.PY \tverify_site authority_name %s  \
 283                                         #login_base %s slice_hrn %s" \
 284                                         #%(authority_name,login_base,slice_hrn)
 285
 286         #sites = self.driver.GetSites(login_base)
 287         #if not sites:
 288             ## create new site record
 289             #site = {'name': 'geni.%s' % authority_name,
 290                     #'abbreviated_name': authority_name,
 291                     #'login_base': login_base,
 292                     #'max_slices': 100,
 293                     #'max_slivers': 1000,
 294                     #'enabled': True,
 295                     #'peer_site_id': None}
 296             #if peer:
 297                 #site['peer_site_id'] = slice_record.get('site_id', None)
 298             #site['site_id'] = self.driver.AddSite(site)
 299             ## exempt federated sites from monitor policies
 300             #self.driver.AddSiteTag(site['site_id'], 'exempt_site_until', \
 301                                                                 #"20200101")
 302
 303             ### is this still necessary?
 304             ### add record to the local registry
 305             ##if sfa_peer and slice_record:
 306                 ##peer_dict = {'type': 'authority', 'hrn': site_hrn, \
 307                              ##'peer_authority': sfa_peer, 'pointer': \
 308                                                         #site['site_id']}
 309                 ##self.registry.register_peer_object(self.credential, peer_dict)
 310         #else:
 311             #site =  sites[0]
 312             #if peer:
 313                 ## unbind from peer so we can modify if necessary.
 314                 ## Will bind back later
 315                 #self.driver.UnBindObjectFromPeer('site', site['site_id'], \
 316                                                             #peer['shortname'])
 317
 318         #return site
 319
 320     def verify_slice(self, slice_hrn, slice_record, peer, sfa_peer, options={}):
 321
 322         #login_base = slice_hrn.split(".")[0]
 323         slicename = slice_hrn
 324         sl = self.driver.GetSlices(slice_filter = slicename, \
 325                                             slice_filter_type = 'slice_hrn')
 326         if sl:
 327
 328             logger.debug("SLABSLICE \tverify_slice slicename %s sl %s \
 329                                 slice_record %s"%(slicename, sl, slice_record))
 330             sfa_slice = sl
 331             sfa_slice.update(slice_record)
 332             #del slice['last_updated']
 333             #del slice['date_created']
 334             #if peer:
 335                 #slice['peer_slice_id'] = slice_record.get('slice_id', None)
 336                 ## unbind from peer so we can modify if necessary.
 337                 ## Will bind back later
 338                 #self.driver.UnBindObjectFromPeer('slice', slice['slice_id'], \
 339                                                             #peer['shortname'])
 340                 #Update existing record (e.g. expires field)
 341                 #it with the latest info.
 342             ##if slice_record and slice['expires'] != slice_record['expires']:
 343                 ##self.driver.UpdateSlice( slice['slice_id'], {'expires' : \
 344                                                     #slice_record['expires']})
 345         else:
 346             logger.debug(" SLABSLICES \tverify_slice Oups \
 347                         slice_record %s peer %s sfa_peer %s "\
 348                         %(slice_record, peer,sfa_peer))
 349             sfa_slice = {'slice_hrn': slicename,
 350                      #'url': slice_record.get('url', slice_hrn),
 351                      #'description': slice_record.get('description', slice_hrn)
 352                      'node_list' : [],
 353                      'record_id_user' : slice_record['person_ids'][0],
 354                      'record_id_slice': slice_record['record_id'],
 355                      'peer_authority':str(peer.hrn)
 356
 357                      }
 358             # add the slice
 359             self.driver.AddSlice(sfa_slice)
 360             #slice['slice_id'] = self.driver.AddSlice(slice)
 361             logger.debug("SLABSLICES \tverify_slice ADDSLICE OK")
 362             #slice['node_ids']=[]
 363             #slice['person_ids'] = []
 364             #if peer:
 365                 #slice['peer_slice_id'] = slice_record.get('slice_id', None)
 366             # mark this slice as an sfa peer record
 367             #if sfa_peer:
 368                 #peer_dict = {'type': 'slice', 'hrn': slice_hrn,
 369                              #'peer_authority': sfa_peer, 'pointer': \
 370                                                     #slice['slice_id']}
 371                 #self.registry.register_peer_object(self.credential, peer_dict)
 372
 373
 374
 375         return sfa_slice
 376
 377
 378     def verify_persons(self, slice_hrn, slice_record, users,  peer, sfa_peer, \
 379                                                                 options={}):
 380         users_by_id = {}
 381         users_by_hrn = {}
 382         users_dict = {}
 383
 384         for user in users:
 385
 386             if 'urn' in user and (not 'hrn' in user ) :
 387                 user['hrn'], user['type'] = urn_to_hrn(user['urn'])
 388
 389             if 'person_id' in user and 'hrn' in user:
 390                 users_by_id[user['person_id']] = user
 391                 users_dict[user['person_id']] = {'person_id':\
 392                                         user['person_id'], 'hrn':user['hrn']}
 393
 394                 users_by_hrn[user['hrn']] = user
 395                 users_dict[user['hrn']] = {'person_id':user['person_id'], \
 396                                                         'hrn':user['hrn']}
 397
 398         logger.debug( "SLABSLICE.PY \tverify_person  \
 399                         users_dict %s \r\n user_by_hrn %s \r\n \
 400                         \tusers_by_id %s " \
 401                         %(users_dict,users_by_hrn, users_by_id))
 402
 403         existing_user_ids = []
 404         existing_user_hrns = []
 405         existing_users = []
 406         #Check if user is in LDAP using its hrn.
 407         #Assuming Senslab is centralised :  one LDAP for all sites,
 408         # user_id unknown from LDAP
 409         # LDAP does not provide users id, therfore we rely on hrns
 410         if users_by_hrn:
 411             #Construct the list of filters for GetPersons
 412             filter_user = []
 413             for hrn in users_by_hrn:
 414                 #filter_user.append ( {'hrn':hrn})
 415                 filter_user.append (users_by_hrn[hrn])
 416             logger.debug(" SLABSLICE.PY \tverify_person  filter_user %s " \
 417                                                     %(filter_user))
 418             existing_users = self.driver.GetPersons(filter_user)
 419             #existing_users = self.driver.GetPersons({'hrn': \
 420                                             #users_by_hrn.keys()})
 421             #existing_users = self.driver.GetPersons({'hrn': \
 422                                                     #users_by_hrn.keys()}, \
 423                                                     #['hrn','pkey'])
 424             if existing_users:
 425                 for user in existing_users :
 426                     #for  k in users_dict[user['hrn']] :
 427                     existing_user_hrns.append(users_dict[user['hrn']]['hrn'])
 428                     existing_user_ids.\
 429                                     append(users_dict[user['hrn']]['person_id'])
 430
 431             #User from another federated site ,
 432             #does not have a senslab account yet?
 433             #or have multiple SFA accounts
 434             #Check before adding  them to LDAP
 435
 436             else:
 437
 438                 if isinstance(users, list):
 439                     ldap_reslt = self.driver.ldap.LdapSearch(users[0])
 440                 else:
 441                     ldap_reslt = self.driver.ldap.LdapSearch(users)
 442                 if ldap_reslt:
 443                     existing_users = ldap_reslt[0]
 444                     existing_user_hrns.append(users_dict[user['hrn']]['hrn'])
 445                     existing_user_ids.\
 446                                     append(users_dict[user['hrn']]['person_id'])
 447                 else:
 448                     #User not existing in LDAP
 449
 450                     logger.debug(" SLABSLICE.PY \tverify_person users \
 451                                 not in ldap ... %s \r\n \t ldap_reslt %s "  \
 452                                                 %(users, ldap_reslt))
 453
 454
 455         # requested slice users
 456         requested_user_ids = users_by_id.keys()
 457         requested_user_hrns = users_by_hrn.keys()
 458         logger.debug("SLABSLICE.PY \tverify_person requested_user_ids  %s \
 459                         user_by_hrn %s " %(requested_user_ids, users_by_hrn))
 460         # existing slice users
 461
 462         #existing_slice_users_filter = {'hrn': slice_record['PI'][0]}
 463         #logger.debug(" SLABSLICE.PY \tverify_person requested_user_ids %s \
 464         #existing_slice_users_filter %s slice_record %s" %(requested_user_ids,\
 465         #existing_slice_users_filter,slice_record))
 466
 467         #existing_slice_users = \
 468                         #self.driver.GetPersons([existing_slice_users_filter])
 469         #existing_slice_users = \
 470                         #self.driver.GetPersons(existing_slice_users_filter, \
 471                         #['hrn','pkey'])
 472         #logger.debug("SLABSLICE.PY \tverify_person  existing_slice_users %s " \
 473                                     #%(existing_slice_users))
 474         #Check that the user of the slice in the slice record
 475         #matches the existing users
 476         try:
 477             if slice_record['record_id_user'] in requested_user_ids and \
 478                                 slice_record['PI'][0] in requested_user_hrns:
 479                 logger.debug(" SLABSLICE  \tverify_person  \
 480                         requested_user_ids %s = \
 481                         slice_record['record_id_user'] %s" \
 482                         %(requested_user_ids,slice_record['record_id_user']))
 483
 484         except KeyError:
 485             pass
 486
 487         #existing_slice_user_hrns = [user['hrn'] for \
 488                                         #user in existing_slice_users]
 489
 490         # users to be added, removed or updated
 491         #One user in one senslab slice : there should be no need
 492         #to remove/ add any user from/to a slice.
 493         #However a user from SFA which is not registered in Senslab yet
 494         #should be added to the LDAP.
 495
 496         added_user_hrns = set(requested_user_hrns).\
 497                                             difference(set(existing_user_hrns))
 498
 499         #self.verify_keys(existing_slice_users, updated_users_list, \
 500                                                             #peer, append)
 501
 502         added_persons = []
 503         # add new users
 504         for added_user_hrn in added_user_hrns:
 505             added_user = users_dict[added_user_hrn]
 506             #hrn, type = urn_to_hrn(added_user['urn'])
 507             person = {
 508                 'first_name': added_user.get('first_name', hrn),
 509                 'last_name': added_user.get('last_name', hrn),
 510                 'person_id': added_user['person_id'],
 511                 'peer_person_id': None,
 512                 'keys': [],
 513                 'key_ids': added_user.get('key_ids', []),
 514
 515             }
 516             person['person_id'] = self.driver.AddPerson(person)
 517             if peer:
 518                 person['peer_person_id'] = added_user['person_id']
 519             added_persons.append(person)
 520
 521             # enable the account
 522             self.driver.UpdatePerson(person['person_id'], {'enabled': True})
 523
 524             # add person to site
 525             #self.driver.AddPersonToSite(added_user_id, login_base)
 526
 527             #for key_string in added_user.get('keys', []):
 528                 #key = {'key':key_string, 'key_type':'ssh'}
 529                 #key['key_id'] = self.driver.AddPersonKey(person['person_id'], \
 530                                                 #                       key)
 531                 #person['keys'].append(key)
 532
 533             # add the registry record
 534             #if sfa_peer:
 535                 #peer_dict = {'type': 'user', 'hrn': hrn, 'peer_authority': \
 536                                                 #sfa_peer, \
 537                                                 #'pointer': person['person_id']}
 538                 #self.registry.register_peer_object(self.credential, peer_dict)
 539         #for added_slice_user_hrn in \
 540                                 #added_slice_user_hrns.union(added_user_hrns):
 541             #self.driver.AddPersonToSlice(added_slice_user_hrn, \
 542                                                     #slice_record['name'])
 543         #for added_slice_user_id in \
 544                                     #added_slice_user_ids.union(added_user_ids):
 545             # add person to the slice
 546             #self.driver.AddPersonToSlice(added_slice_user_id, \
 547                                                 #slice_record['name'])
 548             # if this is a peer record then it
 549             # should already be bound to a peer.
 550             # no need to return worry about it getting bound later
 551
 552         return added_persons
 553
 554     #Unused
 555     def verify_keys(self, persons, users, peer, options={}):
 556         # existing keys
 557         key_ids = []
 558         for person in persons:
 559             key_ids.extend(person['key_ids'])
 560         keylist = self.driver.GetKeys(key_ids, ['key_id', 'key'])
 561         keydict = {}
 562         for key in keylist:
 563             keydict[key['key']] = key['key_id']
 564         existing_keys = keydict.keys()
 565         persondict = {}
 566         for person in persons:
 567             persondict[person['email']] = person
 568
 569         # add new keys
 570         requested_keys = []
 571         updated_persons = []
 572         for user in users:
 573             user_keys = user.get('keys', [])
 574             updated_persons.append(user)
 575             for key_string in user_keys:
 576                 requested_keys.append(key_string)
 577                 if key_string not in existing_keys:
 578                     key = {'key': key_string, 'key_type': 'ssh'}
 579                     try:
 580                         if peer:
 581                             person = persondict[user['email']]
 582                             self.driver.UnBindObjectFromPeer('person', \
 583                                         person['person_id'], peer['shortname'])
 584                         key['key_id'] = \
 585                                 self.driver.AddPersonKey(user['email'], key)
 586                         if peer:
 587                             key_index = user_keys.index(key['key'])
 588                             remote_key_id = user['key_ids'][key_index]
 589                             self.driver.BindObjectToPeer('key', \
 590                                             key['key_id'], peer['shortname'], \
 591                                             remote_key_id)
 592
 593                     finally:
 594                         if peer:
 595                             self.driver.BindObjectToPeer('person', \
 596                                     person['person_id'], peer['shortname'], \
 597                                     user['person_id'])
 598
 599         # remove old keys (only if we are not appending)
 600         append = options.get('append', True)
 601         if append == False:
 602             removed_keys = set(existing_keys).difference(requested_keys)
 603             for existing_key_id in keydict:
 604                 if keydict[existing_key_id] in removed_keys:
 605                     try:
 606                         if peer:
 607                             self.driver.UnBindObjectFromPeer('key', \
 608                                             existing_key_id, peer['shortname'])
 609                         self.driver.DeleteKey(existing_key_id)
 610                     except:
 611                         pass
 612
 613     #def verify_slice_attributes(self, slice, requested_slice_attributes, \
 614                                             #append=False, admin=False):
 615         ## get list of attributes users ar able to manage
 616         #filter = {'category': '*slice*'}
 617         #if not admin:
 618             #filter['|roles'] = ['user']
 619         #slice_attributes = self.driver.GetTagTypes(filter)
 620         #valid_slice_attribute_names = [attribute['tagname'] \
 621                                             #for attribute in slice_attributes]
 622
 623         ## get sliver attributes
 624         #added_slice_attributes = []
 625         #removed_slice_attributes = []
 626         #ignored_slice_attribute_names = []
 627         #existing_slice_attributes = self.driver.GetSliceTags({'slice_id': \
 628                                                             #slice['slice_id']})
 629
 630         ## get attributes that should be removed
 631         #for slice_tag in existing_slice_attributes:
 632             #if slice_tag['tagname'] in ignored_slice_attribute_names:
 633                 ## If a slice already has a admin only role
 634                 ## it was probably given to them by an
 635                 ## admin, so we should ignore it.
 636                 #ignored_slice_attribute_names.append(slice_tag['tagname'])
 637             #else:
 638                 ## If an existing slice attribute was not
 639                 ## found in the request it should
 640                 ## be removed
 641                 #attribute_found=False
 642                 #for requested_attribute in requested_slice_attributes:
 643                     #if requested_attribute['name'] == slice_tag['tagname'] \
 644                         #and requested_attribute['value'] == slice_tag['value']:
 645                         #attribute_found=True
 646                         #break
 647
 648             #if not attribute_found and not append:
 649                 #removed_slice_attributes.append(slice_tag)
 650
 651         ## get attributes that should be added:
 652         #for requested_attribute in requested_slice_attributes:
 653             ## if the requested attribute wasn't found  we should add it
 654             #if requested_attribute['name'] in valid_slice_attribute_names:
 655                 #attribute_found = False
 656                 #for existing_attribute in existing_slice_attributes:
 657                     #if requested_attribute['name'] == \
 658                         #existing_attribute['tagname'] and \
 659                        #requested_attribute['value'] == \
 660                        #existing_attribute['value']:
 661                         #attribute_found=True
 662                         #break
 663                 #if not attribute_found:
 664                     #added_slice_attributes.append(requested_attribute)
 665
 666
 667         ## remove stale attributes
 668         #for attribute in removed_slice_attributes:
 669             #try:
 670                 #self.driver.DeleteSliceTag(attribute['slice_tag_id'])
 671             #except Exception, error:
 672                 #self.logger.warn('Failed to remove sliver attribute. name: \
 673                                 #%s, value: %s, node_id: %s\nCause:%s'\
 674                                 #% (name, value,  node_id, str(error)))
 675
 676         ## add requested_attributes
 677         #for attribute in added_slice_attributes:
 678             #try:
 679                 #self.driver.AddSliceTag(slice['name'], attribute['name'], \
 680                             #attribute['value'], attribute.get('node_id', None))
 681             #except Exception, error:
 682                 #self.logger.warn('Failed to add sliver attribute. name: %s, \
 683                                 #value: %s, node_id: %s\nCause:%s'\
 684                                 #% (name, value,  node_id, str(error)))
 685
 686     #def create_slice_aggregate(self, xrn, rspec):
 687         #hrn, type = urn_to_hrn(xrn)
 688         ## Determine if this is a peer slice
 689         #peer = self.get_peer(hrn)
 690         #sfa_peer = self.get_sfa_peer(hrn)
 691
 692         #spec = RSpec(rspec)
 693         ## Get the slice record from sfa
 694         #slicename = hrn_to_pl_slicename(hrn)
 695         #slice = {}
 696         #slice_record = None
 697         #registry = self.api.registries[self.api.hrn]
 698         #credential = self.api.getCredential()
 699
 700         #site_id, remote_site_id = self.verify_site(registry, \
 701                                         #credential, hrn, peer, sfa_peer)
 702         #slice = self.verify_slice(registry, credential, \
 703                                 #hrn, site_id, remote_site_id, peer, sfa_peer)
 704
 705         ## find out where this slice is currently running
 706         #nodelist = self.driver.GetNodes(slice['node_ids'], ['hostname'])
 707         #hostnames = [node['hostname'] for node in nodelist]
 708
 709         ## get netspec details
 710         #nodespecs = spec.getDictsByTagName('NodeSpec')
 711
 712         ## dict in which to store slice attributes to set for the nodes
 713         #nodes = {}
 714         #for nodespec in nodespecs:
 715             #if isinstance(nodespec['name'], list):
 716                 #for nodename in nodespec['name']:
 717                     #nodes[nodename] = {}
 718                     #for k in nodespec.keys():
 719                         #rspec_attribute_value = nodespec[k]
 720                         #if (self.rspec_to_slice_tag.has_key(k)):
 721                             #slice_tag_name = self.rspec_to_slice_tag[k]
 722                             #nodes[nodename][slice_tag_name] = \
 723                                                         #rspec_attribute_value
 724             #elif isinstance(nodespec['name'], StringTypes):
 725                 #nodename = nodespec['name']
 726                 #nodes[nodename] = {}
 727                 #for k in nodespec.keys():
 728                     #rspec_attribute_value = nodespec[k]
 729                     #if (self.rspec_to_slice_tag.has_key(k)):
 730                         #slice_tag_name = self.rspec_to_slice_tag[k]
 731                         #nodes[nodename][slice_tag_name] = rspec_attribute_value
 732
 733                 #for k in nodespec.keys():
 734                     #rspec_attribute_value = nodespec[k]
 735                     #if (self.rspec_to_slice_tag.has_key(k)):
 736                         #slice_tag_name = self.rspec_to_slice_tag[k]
 737                         #nodes[nodename][slice_tag_name] = rspec_attribute_value
 738
 739         #node_names = nodes.keys()
 740         ## remove nodes not in rspec
 741         #deleted_nodes = list(set(hostnames).difference(node_names))
 742         ## add nodes from rspec
 743         #added_nodes = list(set(node_names).difference(hostnames))
 744
 745         #try:
 746             #if peer:
 747                 #self.driver.UnBindObjectFromPeer('slice', \
 748                                                     #slice['slice_id'], peer)
 749
 750             #self.driver.LaunchExperimentOnOAR(slicename, added_nodes)
 751
 752             ## Add recognized slice tags
 753             #for node_name in node_names:
 754                 #node = nodes[node_name]
 755                 #for slice_tag in node.keys():
 756                     #value = node[slice_tag]
 757                     #if (isinstance(value, list)):
 758                         #value = value[0]
 759
 760                     #self.driver.AddSliceTag(slicename, slice_tag, \
 761                                                         #value, node_name)
 762
 763             #self.driver.DeleteSliceFromNodes(slicename, deleted_nodes)
 764         #finally:
 765             #if peer:
 766                 #self.driver.BindObjectToPeer('slice', slice['slice_id'], \
 767                                                 #peer, slice['peer_slice_id'])
 768
 769         #return 1
 770