sfa/senslab/slabaggregate.py

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