sfa/nitos/nitosslices.py

   1 from types import StringTypes
   2 from collections import defaultdict
   3
   4 from sfa.util.sfatime import utcparse, datetime_to_epoch
   5 from sfa.util.sfalogging import logger
   6 from sfa.util.xrn import Xrn, get_leaf, get_authority, urn_to_hrn
   7
   8 from sfa.rspecs.rspec import RSpec
   9
  10 from sfa.nitos.nitosxrn import NitosXrn, hrn_to_nitos_slicename, xrn_to_hostname
  11
  12 MAXINT =  2L**31-1
  13
  14 class NitosSlices:
  15
  16     def __init__(self, driver):
  17         self.driver = driver
  18
  19
  20     def get_sfa_peer(self, xrn):
  21         hrn, type = urn_to_hrn(xrn)
  22
  23         # return the authority for this hrn or None if we are the authority
  24         sfa_peer = None
  25         slice_authority = get_authority(hrn)
  26         site_authority = get_authority(slice_authority)
  27
  28         if site_authority != self.driver.hrn:
  29             sfa_peer = site_authority
  30
  31         return sfa_peer
  32
  33     def verify_slice_leases_nodes(self, slice, rspec_requested_nodes):
  34         nodes = self.driver.shell.getNodes({}, [])
  35
  36         requested_nodes = []
  37         for node in rspec_requested_nodes:
  38              requested_node = {}
  39              nitos_nodes = []
  40              nitos_nodes.extend(nodes)
  41              slice_name = hrn_to_nitos_slicename(node['slice_id'])
  42              if slice_name != slice['slice_name']:
  43                  continue
  44              hostname = xrn_to_hostname(node['component_id'])
  45              nitos_node = self.driver.filter_nitos_results(nitos_nodes, {'hostname': hostname})
  46              if not nitos_node:
  47                  continue
  48              nitos_node = nitos_node[0]
  49              # fill the requested node with nitos ids
  50              requested_node['slice_id'] = slice['slice_id']
  51              requested_node['node_id'] = nitos_node['node_id']
  52              requested_node['start_time'] = node['start_time']
  53              requested_node['end_time'] = str(int(node['duration']) * int(self.driver.testbedInfo['grain']) + int(node['start_time']))
  54              requested_nodes.append(requested_node)
  55
  56         # get actual nodes reservation data for the slice
  57         reserved_nodes = self.driver.filter_nitos_results(self.driver.shell.getReservedNodes({}, []), {'slice_id': slice['slice_id']})
  58
  59         reserved_nodes_by_id = {}
  60         for node in reserved_nodes:
  61              reserved_nodes_by_id[node['reservation_id']] = {'slice_id': node['slice_id'], \
  62                                       'node_id': node['node_id'], 'start_time': node['start_time'], \
  63                                       'end_time': node['end_time']}
  64
  65         added_nodes = []
  66         kept_nodes_id = []
  67         deleted_nodes_id = []
  68         for reservation_id in reserved_nodes_by_id:
  69              if reserved_nodes_by_id[reservation_id] not in requested_nodes:
  70                  deleted_nodes_id.append(reservation_id)
  71              else:
  72                  kept_nodes_id.append(reservation_id)
  73                  requested_nodes.remove(reserved_nodes_by_id[reservation_id])
  74         added_nodes = requested_nodes
  75
  76         print "NODES: \nAdded: %s \nDeleted: %s\nKept: %s" %(added_nodes,deleted_nodes_id,kept_nodes_id)
  77
  78         try:
  79             deleted=self.driver.shell.releaseNodes({'reservation_ids': deleted_nodes_id})
  80             for node in added_nodes:
  81                 added=self.driver.shell.reserveNodes({'slice_id': slice['slice_id'], 'start_time': node['start_time'], 'end_time': node['end_time'], 'nodes': [node['node_id']]})
  82
  83         except:
  84             logger.log_exc('Failed to add/remove slice leases nodes')
  85
  86         return added_nodes
  87
  88
  89     def verify_slice_leases_channels(self, slice, rspec_requested_channels):
  90         channels = self.driver.shell.getChannels({}, [])
  91
  92         requested_channels = []
  93         for channel in rspec_requested_channels:
  94              requested_channel = {}
  95              nitos_channels = []
  96              nitos_channels.extend(channels)
  97              slice_name = hrn_to_nitos_slicename(channel['slice_id'])
  98              if slice_name != slice['slice_name']:
  99                  continue
 100              channel_num = channel['channel_num']
 101              nitos_channel = self.driver.filter_nitos_results(nitos_channels, {'channel': channel_num})[0]
 102              # fill the requested channel with nitos ids
 103              requested_channel['slice_id'] = slice['slice_id']
 104              requested_channel['channel_id'] = nitos_channel['channel_id']
 105              requested_channel['start_time'] = channel['start_time']
 106              requested_channel['end_time'] = str(int(channel['duration']) * int(self.driver.testbedInfo['grain']) + int(channel['start_time']))
 107              requested_channels.append(requested_channel)
 108
 109         # get actual channel reservation data for the slice
 110         reserved_channels = self.driver.filter_nitos_results(self.driver.shell.getReservedChannels(), {'slice_id': slice['slice_id']})
 111
 112         reserved_channels_by_id = {}
 113         for channel in reserved_channels:
 114              reserved_channels_by_id[channel['reservation_id']] = {'slice_id': channel['slice_id'], \
 115                                       'channel_id': channel['channel_id'], 'start_time': channel['start_time'], \
 116                                       'end_time': channel['end_time']}
 117
 118         added_channels = []
 119         kept_channels_id = []
 120         deleted_channels_id = []
 121         for reservation_id in reserved_channels_by_id:
 122              if reserved_channels_by_id[reservation_id] not in requested_channels:
 123                  deleted_channels_id.append(reservation_id)
 124              else:
 125                  kept_channels_id.append(reservation_id)
 126                  requested_channels.remove(reserved_channels_by_id[reservation_id])
 127         added_channels = requested_channels
 128
 129         print "CHANNELS: \nAdded: %s \nDeleted: %s\nKept: %s" %(added_channels,deleted_channels_id,kept_channels_id)
 130
 131         try:
 132             deleted=self.driver.shell.releaseChannels({'reservation_ids': deleted_channels_id})
 133             for channel in added_channels:
 134                 added=self.driver.shell.reserveChannels({'slice_id': slice['slice_id'], 'start_time': channel['start_time'], 'end_time': channel['end_time'], 'channels': [channel['channel_id']]})
 135
 136         except:
 137             logger.log_exc('Failed to add/remove slice leases channels')
 138
 139         return added_channels
 140
 141
 142     def free_egre_key(self):
 143         used = set()
 144         for tag in self.driver.shell.GetSliceTags({'tagname': 'egre_key'}):
 145                 used.add(int(tag['value']))
 146
 147         for i in range(1, 256):
 148             if i not in used:
 149                 key = i
 150                 break
 151         else:
 152             raise KeyError("No more EGRE keys available")
 153
 154         return str(key)
 155
 156
 157
 158     def verify_slice(self, slice_hrn, slice_record, sfa_peer, options={}):
 159         slicename = hrn_to_nitos_slicename(slice_hrn)
 160         slices = self.driver.shell.getSlices({}, [])
 161         slices = self.driver.filter_nitos_results(slices, {'slice_name': slicename})
 162         if not slices:
 163             slice = {'slice_name': slicename}
 164             # add the slice
 165             slice['slice_id'] = self.driver.shell.addSlice(slice)
 166             slice['node_ids'] = []
 167             slice['user_ids'] = []
 168         else:
 169             slice = slices[0]
 170
 171         return slice
 172
 173     #def get_existing_persons(self, users):
 174     def verify_users(self, slice_hrn, slice_record, users, sfa_peer, options={}):
 175
 176         slice_user_ids = slice_record['user_ids']
 177         all_users = self.driver.shell.getUsers()
 178         # filter slice users
 179         slice_users = [user for user in all_users if user['user_id'] in slice_user_ids]
 180
 181         slicename = hrn_to_nitos_slicename(slice_hrn)
 182         slices = self.driver.shell.getSlices({}, [])
 183         slices = self.driver.filter_nitos_results(slices, {'slice_name': slicename})
 184
 185         slice_user
 186         users_by_email = {}
 187         users_by_site = defaultdict(list)
 188         users_dict = {}
 189         for user in users:
 190             user['urn'] = user['urn'].lower()
 191             hrn, type = urn_to_hrn(user['urn'])
 192             username = get_leaf(hrn)
 193             login_base = PlXrn(xrn=user['urn']).pl_login_base()
 194             user['username'] = username
 195             user['site'] = login_base
 196
 197             if 'email' in user:
 198                 user['email'] = user['email'].lower()
 199                 users_by_email[user['email']] = user
 200                 users_dict[user['email']] = user
 201             else:
 202                 users_by_site[user['site']].append(user)
 203
 204         # start building a list of existing users
 205         existing_user_ids = []
 206         existing_user_ids_filter = []
 207         if users_by_email:
 208             existing_user_ids_filter.extend(users_by_email.keys())
 209         if users_by_site:
 210             for login_base in users_by_site:
 211                 users = users_by_site[login_base]
 212                 for user in users:
 213                     existing_user_ids_filter.append(user['username']+'@geni.net')
 214         if existing_user_ids_filter:
 215             # get existing users by email
 216             existing_users = self.driver.shell.GetPersons({'email': existing_user_ids_filter},
 217                                                         ['person_id', 'key_ids', 'email'])
 218             existing_user_ids.extend([user['email'] for user in existing_users])
 219
 220         if users_by_site:
 221             # get a list of user sites (based on requeste user urns
 222             site_list = self.driver.shell.GetSites(users_by_site.keys(), \
 223                 ['site_id', 'login_base', 'person_ids'])
 224             # get all existing users at these sites
 225             sites = {}
 226             site_user_ids = []
 227             for site in site_list:
 228                 sites[site['site_id']] = site
 229                 site_user_ids.extend(site['person_ids'])
 230
 231             existing_site_persons_list = self.driver.shell.GetPersons(site_user_ids,
 232                                                                     ['person_id', 'key_ids', 'email', 'site_ids'])
 233
 234             # all requested users are either existing users or new (added) users
 235             for login_base in users_by_site:
 236                 requested_site_users = users_by_site[login_base]
 237                 for requested_user in requested_site_users:
 238                     user_found = False
 239                     for existing_user in existing_site_persons_list:
 240                         for site_id in existing_user['site_ids']:
 241                             if site_id in sites:
 242                                 site = sites[site_id]
 243                                 if login_base == site['login_base'] and \
 244                                    existing_user['email'].startswith(requested_user['username']+'@'):
 245                                     existing_user_ids.append(existing_user['email'])
 246                                     requested_user['email'] = existing_user['email']
 247                                     users_dict[existing_user['email']] = requested_user
 248                                     user_found = True
 249                                     break
 250                         if user_found:
 251                             break
 252
 253                     if user_found == False:
 254                         fake_email = requested_user['username'] + '@geni.net'
 255                         requested_user['email'] = fake_email
 256                         users_dict[fake_email] = requested_user
 257
 258         # requested slice users
 259         requested_user_ids = users_dict.keys()
 260         # existing slice users
 261         existing_slice_users_filter = {'person_id': slice_record.get('person_ids', [])}
 262         existing_slice_users = self.driver.shell.GetPersons(existing_slice_users_filter,
 263                                                           ['person_id', 'key_ids', 'email'])
 264         existing_slice_user_ids = [user['email'] for user in existing_slice_users]
 265
 266         # users to be added, removed or updated
 267         added_user_ids = set(requested_user_ids).difference(existing_user_ids)
 268         added_slice_user_ids = set(requested_user_ids).difference(existing_slice_user_ids)
 269         removed_user_ids = set(existing_slice_user_ids).difference(requested_user_ids)
 270         updated_user_ids = set(existing_slice_user_ids).intersection(requested_user_ids)
 271
 272         # Remove stale users (only if we are not appending).
 273         # Append by default.
 274         append = options.get('append', True)
 275         if append == False:
 276             for removed_user_id in removed_user_ids:
 277                 self.driver.shell.DeletePersonFromSlice(removed_user_id, slice_record['name'])
 278         # update_existing users
 279         updated_users_list = [user for user in users_dict.values() if user['email'] in \
 280           updated_user_ids]
 281         self.verify_keys(existing_slice_users, updated_users_list, peer, options)
 282
 283         added_persons = []
 284         # add new users
 285         for added_user_id in added_user_ids:
 286             added_user = users_dict[added_user_id]
 287             hrn, type = urn_to_hrn(added_user['urn'])
 288             person = {
 289                 'first_name': added_user.get('first_name', hrn),
 290                 'last_name': added_user.get('last_name', hrn),
 291                 'email': added_user_id,
 292                 'peer_person_id': None,
 293                 'keys': [],
 294                 'key_ids': added_user.get('key_ids', []),
 295             }
 296             person['person_id'] = self.driver.shell.AddPerson(person)
 297             if peer:
 298                 person['peer_person_id'] = added_user['person_id']
 299             added_persons.append(person)
 300
 301             # enable the account
 302             self.driver.shell.UpdatePerson(person['person_id'], {'enabled': True})
 303
 304             # add person to site
 305             self.driver.shell.AddPersonToSite(added_user_id, added_user['site'])
 306
 307             for key_string in added_user.get('keys', []):
 308                 key = {'key':key_string, 'key_type':'ssh'}
 309                 key['key_id'] = self.driver.shell.AddPersonKey(person['person_id'], key)
 310                 person['keys'].append(key)
 311
 312             # add the registry record
 313 #            if sfa_peer:
 314 #                peer_dict = {'type': 'user', 'hrn': hrn, 'peer_authority': sfa_peer, \
 315 #                    'pointer': person['person_id']}
 316 #                self.registry.register_peer_object(self.credential, peer_dict)
 317
 318         for added_slice_user_id in added_slice_user_ids.union(added_user_ids):
 319             # add person to the slice
 320             self.driver.shell.AddPersonToSlice(added_slice_user_id, slice_record['name'])
 321             # if this is a peer record then it should already be bound to a peer.
 322             # no need to return worry about it getting bound later
 323
 324         return added_persons
 325
 326
 327     def verify_keys(self, persons, users, options={}):
 328         # existing keys
 329         key_ids = []
 330         for person in persons:
 331             key_ids.extend(person['key_ids'])
 332         keylist = self.driver.shell.GetKeys(key_ids, ['key_id', 'key'])
 333         keydict = {}
 334         for key in keylist:
 335             keydict[key['key']] = key['key_id']
 336         existing_keys = keydict.keys()
 337         persondict = {}
 338         for person in persons:
 339             persondict[person['email']] = person
 340
 341         # add new keys
 342         requested_keys = []
 343         updated_persons = []
 344         for user in users:
 345             user_keys = user.get('keys', [])
 346             updated_persons.append(user)
 347             for key_string in user_keys:
 348                 requested_keys.append(key_string)
 349                 if key_string not in existing_keys:
 350                     key = {'key': key_string, 'key_type': 'ssh'}
 351                     try:
 352                         if peer:
 353                             person = persondict[user['email']]
 354                             self.driver.shell.UnBindObjectFromPeer('person', person['person_id'], peer['shortname'])
 355                         key['key_id'] = self.driver.shell.AddPersonKey(user['email'], key)
 356                         if peer:
 357                             key_index = user_keys.index(key['key'])
 358                             remote_key_id = user['key_ids'][key_index]
 359                             self.driver.shell.BindObjectToPeer('key', key['key_id'], peer['shortname'], remote_key_id)
 360
 361                     finally:
 362                         if peer:
 363                             self.driver.shell.BindObjectToPeer('person', person['person_id'], peer['shortname'], user['person_id'])
 364
 365         # remove old keys (only if we are not appending)
 366         append = options.get('append', True)
 367         if append == False:
 368             removed_keys = set(existing_keys).difference(requested_keys)
 369             for existing_key_id in keydict:
 370                 if keydict[existing_key_id] in removed_keys:
 371                     try:
 372                         if peer:
 373                             self.driver.shell.UnBindObjectFromPeer('key', existing_key_id, peer['shortname'])
 374                         self.driver.shell.DeleteKey(existing_key_id)
 375                     except:
 376                         pass
 377
 378