sfa/senslab/slabaggregate.py

   1 import time
   2 from sfa.util.xrn import hrn_to_urn, urn_to_hrn, get_authority
   3
   4 from sfa.rspecs.rspec import RSpec
   5 from sfa.rspecs.elements.versions.slabv1Node import SlabPosition
   6 from sfa.rspecs.elements.location import Location
   7 from sfa.rspecs.elements.hardware_type import HardwareType
   8 from sfa.rspecs.elements.login import Login
   9 from sfa.rspecs.elements.services import Services
  10 from sfa.rspecs.elements.sliver import Sliver
  11 from sfa.rspecs.elements.lease import Lease
  12 from sfa.rspecs.elements.granularity import Granularity
  13 from sfa.rspecs.version_manager import VersionManager
  14
  15
  16 from sfa.rspecs.elements.versions.slabv1Node import SlabNode
  17 from sfa.util.sfalogging import logger
  18
  19 from sfa.util.xrn import Xrn
  20
  21 def slab_xrn_to_hostname(xrn):
  22     return Xrn.unescape(Xrn(xrn=xrn, type='node').get_leaf())
  23
  24 def slab_xrn_object(root_auth, hostname):
  25     """Attributes are urn and hrn.
  26     Get the hostname using slab_xrn_to_hostname on the urn.
  27
  28     """
  29     return Xrn('.'.join( [root_auth, Xrn.escape(hostname)]), type='node')
  30
  31 class SlabAggregate:
  32
  33     sites = {}
  34     nodes = {}
  35     api = None
  36     interfaces = {}
  37     links = {}
  38     node_tags = {}
  39
  40     prepared = False
  41
  42     user_options = {}
  43
  44     def __init__(self, driver):
  45         self.driver = driver
  46
  47     def get_slice_and_slivers(self, slice_xrn):
  48         """
  49         Returns a dict of slivers keyed on the sliver's node_id
  50         """
  51         slivers = {}
  52         sfa_slice = None
  53         if not slice_xrn:
  54             return (sfa_slice, slivers)
  55         slice_urn = hrn_to_urn(slice_xrn, 'slice')
  56         slice_hrn, _ = urn_to_hrn(slice_xrn)
  57         slice_name = slice_hrn
  58
  59         slices = self.driver.GetSlices(slice_filter= str(slice_name), \
  60                                                 slice_filter_type = 'slice_hrn')
  61         logger.debug("Slabaggregate api \tget_slice_and_slivers \
  62                         slices %s self.driver.hrn %s" \
  63                         %(slices, self.driver.hrn))
  64         if not slices:
  65             return (sfa_slice, slivers)
  66         #if isinstance(sfa_slice, list):
  67             #sfa_slice = slices[0]
  68         #else:
  69             #sfa_slice = slices
  70
  71         # sort slivers by node id , if there is a job
  72         #and therfore, node allocated to this slice
  73         for sfa_slice in slices:
  74             try:
  75                 node_ids_list =  sfa_slice['node_ids']
  76             except KeyError:
  77                 logger.log_exc("SLABAGGREGATE \t \
  78                                         get_slice_and_slivers KeyError ")
  79                 continue
  80
  81             for node in node_ids_list:
  82                 sliver_xrn = Xrn(slice_urn, type='sliver', id=node)
  83                 sliver_xrn.set_authority(self.driver.hrn)
  84                 #node_id = self.driver.root_auth + '.' + node_id
  85                 sliver = Sliver({'sliver_id':sliver_xrn.urn,
  86                                 'name': sfa_slice['hrn'],
  87                                 'type': 'slab-node',
  88                                 'tags': []})
  89
  90                 slivers[node] = sliver
  91
  92
  93         #Add default sliver attribute :
  94         #connection information for senslab
  95         if get_authority (sfa_slice['hrn']) == self.driver.root_auth:
  96             tmp = sfa_slice['hrn'].split('.')
  97             ldap_username = tmp[1].split('_')[0]
  98             vmaddr = 'ssh ' + ldap_username + '@grenoble.senslab.info'
  99             slivers['default_sliver'] =  {'vm': vmaddr , 'login': ldap_username}
 100
 101         #TODO get_slice_and_slivers Find the login of the external user
 102
 103         logger.debug("SLABAGGREGATE api get_slice_and_slivers  slivers %s "\
 104                                                              %(slivers))
 105         return (slices, slivers)
 106
 107
 108
 109     def get_nodes(self, slices=None, slivers=[], options={}):
 110         # NT: the semantic of this function is not clear to me :
 111         # if slice is not defined, then all the nodes should be returned
 112         # if slice is defined, we should return only the nodes that
 113         # are part of this slice
 114         # but what is the role of the slivers parameter ?
 115         # So i assume that slice['node_ids'] will be the same as slivers for us
 116         #filter_dict = {}
 117         #if slice_xrn:
 118             #if not slices or not slices['node_ids']:
 119                 #return ([],[])
 120         #tags_filter = {}
 121
 122         # get the granularity in second for the reservation system
 123         grain = self.driver.GetLeaseGranularity()
 124
 125         # Commenting this part since all nodes should be returned,
 126         # even if a slice is provided
 127         #if slice :
 128         #    if 'node_ids' in slice and slice['node_ids']:
 129         #        #first case, a non empty slice was provided
 130         #        filter['hostname'] = slice['node_ids']
 131         #        tags_filter=filter.copy()
 132         #        nodes = self.driver.GetNodes(filter['hostname'])
 133         #    else :
 134         #        #second case, a slice was provided, but is empty
 135         #        nodes={}
 136         #else :
 137         #    #third case, no slice was provided
 138         #    nodes = self.driver.GetNodes()
 139         nodes = self.driver.GetNodes()
 140         #geni_available = options.get('geni_available')
 141         #if geni_available:
 142             #filter['boot_state'] = 'boot'
 143
 144         #filter.update({'peer_id': None})
 145         #nodes = self.driver.GetNodes(filter['hostname'])
 146
 147         #site_ids = []
 148         #interface_ids = []
 149         #tag_ids = []
 150         nodes_dict = {}
 151         for node in nodes:
 152
 153             nodes_dict[node['node_id']] = node
 154         #logger.debug("SLABAGGREGATE api get_nodes nodes  %s "\
 155                                                              #%(nodes ))
 156         # get sites
 157         #sites_dict  = self.get_sites({'site_id': site_ids})
 158         # get interfaces
 159         #interfaces = self.get_interfaces({'interface_id':interface_ids})
 160         # get tags
 161         #node_tags = self.get_node_tags(tags_filter)
 162
 163         #if slices, this means we got to list all the nodes given to this slice
 164         # Make a list of all the nodes in the slice before getting their attributes
 165         rspec_nodes = []
 166         slice_nodes_list = []
 167         logger.debug("SLABAGGREGATE api get_nodes slice_nodes_list  %s "\
 168                                                              %(slices ))
 169         if slices:
 170             for one_slice in slices:
 171                 try:
 172                     slice_nodes_list = one_slice['node_ids']
 173                 except KeyError:
 174                     pass
 175                 #for node in one_slice['node_ids']:
 176                     #slice_nodes_list.append(node)
 177
 178         reserved_nodes = self.driver.GetNodesCurrentlyInUse()
 179         logger.debug("SLABAGGREGATE api get_nodes slice_nodes_list  %s "\
 180                                                              %(slice_nodes_list))
 181         for node in nodes:
 182             # skip whitelisted nodes
 183             #if node['slice_ids_whitelist']:
 184                 #if not slice or slice['slice_id'] not in node['slice_ids_whitelist']:
 185                     #continue
 186             #rspec_node = Node()
 187             #logger.debug("SLABAGGREGATE api get_nodes node  %s "\
 188                                                              #%(node))
 189             if slice_nodes_list == [] or node['hostname'] in slice_nodes_list:
 190
 191                 rspec_node = SlabNode()
 192                 # xxx how to retrieve site['login_base']
 193                 #site_id=node['site_id']
 194                 #site=sites_dict[site_id]
 195                 rspec_node['mobile'] = node['mobile']
 196                 rspec_node['archi'] = node['archi']
 197                 rspec_node['radio'] = node['radio']
 198
 199                 slab_xrn = slab_xrn_object(self.driver.root_auth, node['hostname'])
 200                 rspec_node['component_id'] = slab_xrn.urn
 201                 rspec_node['component_name'] = node['hostname']
 202                 rspec_node['component_manager_id'] = \
 203                                 hrn_to_urn(self.driver.root_auth, 'authority+sa')
 204
 205                 # Senslab's nodes are federated : there is only one authority
 206                 # for all Senslab sites, registered in SFA.
 207                 # Removing the part including the site
 208                 # in authority_id SA 27/07/12
 209                 rspec_node['authority_id'] = rspec_node['component_manager_id']
 210
 211                 # do not include boot state (<available> element)
 212                 #in the manifest rspec
 213
 214
 215                 rspec_node['boot_state'] = node['boot_state']
 216                 if node['hostname'] in reserved_nodes:
 217                     rspec_node['boot_state'] = "Reserved"
 218                 rspec_node['exclusive'] = 'true'
 219                 rspec_node['hardware_types'] = [HardwareType({'name': 'slab-node'})]
 220
 221                 # only doing this because protogeni rspec needs
 222                 # to advertise available initscripts
 223                 # add site/interface info to nodes.
 224                 # assumes that sites, interfaces and tags have already been prepared.
 225                 #site = sites_dict[node['site_id']]
 226                 location = Location({'country':'France'})
 227                 rspec_node['location'] = location
 228
 229
 230                 position = SlabPosition()
 231                 for field in position :
 232                     try:
 233                         position[field] = node[field]
 234                     except KeyError, error :
 235                         logger.log_exc("SLABAGGREGATE\t get_nodes \
 236                                                         position %s "%(error))
 237
 238                 rspec_node['position'] = position
 239                 #rspec_node['interfaces'] = []
 240
 241                 # Granularity
 242                 granularity = Granularity({'grain': grain})
 243                 rspec_node['granularity'] = granularity
 244                 rspec_node['tags'] = []
 245                 if node['hostname'] in slivers:
 246                     # add sliver info
 247                     sliver = slivers[node['hostname']]
 248                     rspec_node['sliver_id'] = sliver['sliver_id']
 249                     rspec_node['client_id'] = node['hostname']
 250                     rspec_node['slivers'] = [sliver]
 251
 252                     # slivers always provide the ssh service
 253                     login = Login({'authentication': 'ssh-keys', 'hostname': node['hostname'], 'port':'22', 'username': sliver['name']})
 254                     service = Services({'login': login})
 255                     rspec_node['services'] = [service]
 256                 rspec_nodes.append(rspec_node)
 257
 258         return (rspec_nodes)
 259
 260     def get_leases(self, slice_record = None, options = {}):
 261
 262         now = int(time.time())
 263         lease_filter = {'clip': now }
 264
 265         #if slice_record:
 266             #lease_filter.update({'name': slice_record['name']})
 267         return_fields = ['lease_id', 'hostname', 'site_id', \
 268                             'name', 'start_time', 'duration']
 269         #leases = self.driver.GetLeases(lease_filter)
 270         leases = self.driver.GetLeases()
 271         grain = self.driver.GetLeaseGranularity()
 272         site_ids = []
 273         rspec_leases = []
 274         for lease in leases:
 275             #as many leases as there are nodes in the job
 276             for node in lease['reserved_nodes']:
 277                 rspec_lease = Lease()
 278                 rspec_lease['lease_id'] = lease['lease_id']
 279                 #site = node['site_id']
 280                 slab_xrn = slab_xrn_object(self.driver.root_auth, node)
 281                 rspec_lease['component_id'] = slab_xrn.urn
 282                 #rspec_lease['component_id'] = hostname_to_urn(self.driver.hrn, \
 283                                         #site, node['hostname'])
 284                 rspec_lease['slice_id'] = lease['slice_id']
 285                 rspec_lease['start_time'] = lease['t_from']
 286                 rspec_lease['duration'] = (lease['t_until'] - lease['t_from']) \
 287                                                                     / grain
 288                 rspec_leases.append(rspec_lease)
 289         return rspec_leases
 290
 291
 292         #rspec_leases = []
 293         #for lease in leases:
 294
 295             #rspec_lease = Lease()
 296
 297             ## xxx how to retrieve site['login_base']
 298
 299             #rspec_lease['lease_id'] = lease['lease_id']
 300             #rspec_lease['component_id'] = hostname_to_urn(self.driver.hrn, \
 301                                         #site['login_base'], lease['hostname'])
 302             #slice_hrn = slicename_to_hrn(self.driver.hrn, lease['name'])
 303             #slice_urn = hrn_to_urn(slice_hrn, 'slice')
 304             #rspec_lease['slice_id'] = slice_urn
 305             #rspec_lease['t_from'] = lease['t_from']
 306             #rspec_lease['t_until'] = lease['t_until']
 307             #rspec_leases.append(rspec_lease)
 308         #return rspec_leases
 309 #from plc/aggregate.py
 310     def get_rspec(self, slice_xrn=None, version = None, options={}):
 311
 312         rspec = None
 313         version_manager = VersionManager()
 314         version = version_manager.get_version(version)
 315         logger.debug("SlabAggregate \t get_rspec ***version %s \
 316                     version.type %s  version.version %s options %s \r\n" \
 317                     %(version,version.type,version.version,options))
 318
 319         if not slice_xrn:
 320             rspec_version = version_manager._get_version(version.type, \
 321                                                     version.version, 'ad')
 322
 323         else:
 324             rspec_version = version_manager._get_version(version.type, \
 325                                                 version.version, 'manifest')
 326
 327         slices, slivers = self.get_slice_and_slivers(slice_xrn)
 328         #at this point sliver may be empty if no senslab job
 329         #is running for this user/slice.
 330         rspec = RSpec(version=rspec_version, user_options=options)
 331
 332
 333         #if slice and 'expires' in slice:
 334            #rspec.xml.set('expires',  datetime_to_epoch(slice['expires']))
 335          # add sliver defaults
 336         #nodes, links = self.get_nodes(slice, slivers)
 337         logger.debug("\r\n \r\n SlabAggregate \tget_rspec ******* slice_xrn %s slices  %s\r\n \r\n"\
 338                                             %(slice_xrn, slices))
 339
 340         try:
 341             lease_option = options['list_leases']
 342         except KeyError:
 343             #If no options are specified, at least print the resources
 344             lease_option = 'all'
 345            #if slice_xrn :
 346                #lease_option = 'all'
 347             pass
 348
 349         if lease_option in ['all', 'resources']:
 350         #if not options.get('list_leases') or options.get('list_leases') and options['list_leases'] != 'leases':
 351             nodes = self.get_nodes(slices, slivers)
 352             #In case creating a job,  slice_xrn is not set to None
 353             rspec.version.add_nodes(nodes)
 354             if slice_xrn :
 355                 #Get user associated with this slice
 356                 #user = dbsession.query(RegRecord).filter_by(record_id = \
 357                                                 #slices['record_id_user']).first()
 358
 359                 #ldap_username = (user.hrn).split('.')[1]
 360
 361
 362                 #for one_slice in slices :
 363                 ldap_username = slices[0]['hrn']
 364                 tmp = ldap_username.split('.')
 365                 ldap_username = tmp[1].split('_')[0]
 366
 367                 if version.type == "Slab":
 368                     rspec.version.add_connection_information(ldap_username)
 369
 370             default_sliver = slivers.get('default_sliver', [])
 371             if default_sliver:
 372                 #default_sliver_attribs = default_sliver.get('tags', [])
 373                 logger.debug("SlabAggregate \tget_rspec **** \
 374                         default_sliver%s \r\n" %(default_sliver))
 375                 for attrib in default_sliver:
 376                     rspec.version.add_default_sliver_attribute(attrib, \
 377                                                                default_sliver[attrib])
 378         if lease_option in ['all','leases']:
 379         #if options.get('list_leases') or options.get('list_leases') and options['list_leases'] != 'resources':
 380             leases = self.get_leases(slices)
 381             rspec.version.add_leases(leases)
 382
 383         #logger.debug("SlabAggregate \tget_rspec ******* rspec_toxml %s \r\n"\
 384                                             #%(rspec.toxml()))
 385         return rspec.toxml()