sfa/senslab/slabaggregate.py

   1 #import httplib
   2 #import json
   3 import time
   4
   5
   6 #from sfa.util.config import Config
   7 from sfa.util.xrn import hrn_to_urn, urn_to_hrn, urn_to_sliver_id
   8 from sfa.planetlab.plxrn import PlXrn, hostname_to_urn, slicename_to_hrn
   9
  10 from sfa.rspecs.rspec import RSpec
  11 from sfa.rspecs.elements.location import Location
  12 from sfa.rspecs.elements.hardware_type import HardwareType
  13 from sfa.rspecs.elements.node import Node
  14 #from sfa.rspecs.elements.login import Login
  15 #from sfa.rspecs.elements.services import Services
  16 from sfa.rspecs.elements.sliver import Sliver
  17 from sfa.rspecs.elements.lease import Lease
  18 from sfa.rspecs.elements.granularity import Granularity
  19 from sfa.rspecs.version_manager import VersionManager
  20
  21 #from sfa.util.sfatime import datetime_to_epoch
  22
  23
  24 from sfa.util.sfalogging import logger
  25
  26
  27 def hostname_to_hrn(root_auth, login_base, hostname):
  28     return PlXrn(auth=root_auth, hostname=login_base + '_' +hostname).get_hrn()
  29
  30 class SlabAggregate:
  31
  32     sites = {}
  33     nodes = {}
  34     api = None
  35     interfaces = {}
  36     links = {}
  37     node_tags = {}
  38
  39     prepared = False
  40
  41     user_options = {}
  42
  43     def __init__(self, driver):
  44         self.driver = driver
  45
  46     def get_slice_and_slivers(self, slice_xrn):
  47         """
  48         Returns a dict of slivers keyed on the sliver's node_id
  49         """
  50         slivers = {}
  51         sfa_slice = None
  52         if not slice_xrn:
  53             return (sfa_slice, slivers)
  54         slice_urn = hrn_to_urn(slice_xrn, 'slice')
  55         slice_hrn, _ = urn_to_hrn(slice_xrn)
  56         slice_name = slice_hrn
  57
  58         slices = self.driver.GetSlices(slice_filter= str(slice_name), \
  59                                                 slice_filter_type = 'slice_hrn')
  60         logger.debug("Slabaggregate api \tget_slice_and_slivers  slices %s " \
  61                                                                     %(slices))
  62         if not slices:
  63             return (sfa_slice, slivers)
  64         if isinstance(sfa_slice, list):
  65             sfa_slice = slices[0]
  66         else:
  67             sfa_slice = slices
  68
  69         # sort slivers by node id , if there is a job
  70         #and therfore, node allocated to this slice
  71         if sfa_slice['oar_job_id'] is not -1:
  72             try:
  73
  74                 for node_id in sfa_slice['node_ids']:
  75                     #node_id = self.driver.root_auth + '.' + node_id
  76                     sliver = Sliver({'sliver_id': urn_to_sliver_id(slice_urn, \
  77                                     sfa_slice['record_id_slice'], node_id),
  78                                     'name': sfa_slice['slice_hrn'],
  79                                     'type': 'slab-node',
  80                                     'tags': []})
  81                     slivers[node_id] = sliver
  82             except KeyError:
  83                 logger.log_exc("SLABAGGREGATE \t \
  84                                         get_slice_and_slivers KeyError ")
  85         ## sort sliver attributes by node id
  86         ##tags = self.driver.GetSliceTags({'slice_tag_id': slice['slice_tag_ids']})
  87         ##for tag in tags:
  88             ### most likely a default/global sliver attribute (node_id == None)
  89             ##if tag['node_id'] not in slivers:
  90                 ##sliver = Sliver({'sliver_id': urn_to_sliver_id(slice_urn, slice['slice_id'], ""),
  91                                  ##'name': 'slab-vm',
  92                                  ##'tags': []})
  93                 ##slivers[tag['node_id']] = sliver
  94             ##slivers[tag['node_id']]['tags'].append(tag)
  95         logger.debug("SLABAGGREGATE api get_slice_and_slivers  slivers %s "\
  96                                                              %(slivers))
  97         return (sfa_slice, slivers)
  98
  99
 100
 101     def get_nodes(self, slices=None, slivers=[], options={}):
 102         # NT: the semantic of this function is not clear to me :
 103         # if slice is not defined, then all the nodes should be returned
 104         # if slice is defined, we should return only the nodes that
 105         # are part of this slice
 106         # but what is the role of the slivers parameter ?
 107         # So i assume that slice['node_ids'] will be the same as slivers for us
 108         #filter_dict = {}
 109         tags_filter = {}
 110
 111         # get the granularity in second for the reservation system
 112         grain = self.driver.GetLeaseGranularity()
 113
 114         # Commenting this part since all nodes should be returned,
 115         # even if a slice is provided
 116         #if slice :
 117         #    if 'node_ids' in slice and slice['node_ids']:
 118         #        #first case, a non empty slice was provided
 119         #        filter['hostname'] = slice['node_ids']
 120         #        tags_filter=filter.copy()
 121         #        nodes = self.driver.GetNodes(filter['hostname'])
 122         #    else :
 123         #        #second case, a slice was provided, but is empty
 124         #        nodes={}
 125         #else :
 126         #    #third case, no slice was provided
 127         #    nodes = self.driver.GetNodes()
 128         nodes = self.driver.GetNodes()
 129         #geni_available = options.get('geni_available')
 130         #if geni_available:
 131             #filter['boot_state'] = 'boot'
 132
 133         #filter.update({'peer_id': None})
 134         #nodes = self.driver.GetNodes(filter['hostname'])
 135
 136         #site_ids = []
 137         #interface_ids = []
 138         #tag_ids = []
 139         nodes_dict = {}
 140         for node in nodes:
 141             #site_ids.append(node['site_id'])
 142             #interface_ids.extend(node['interface_ids'])
 143             #tag_ids.extend(node['node_tag_ids'])
 144             nodes_dict[node['node_id']] = node
 145
 146         # get sites
 147         #sites_dict  = self.get_sites({'site_id': site_ids})
 148         # get interfaces
 149         #interfaces = self.get_interfaces({'interface_id':interface_ids})
 150         # get tags
 151         #node_tags = self.get_node_tags(tags_filter)
 152
 153
 154         reserved_nodes = self.driver.GetNodesCurrentlyInUse()
 155         rspec_nodes = []
 156         for node in nodes:
 157             # skip whitelisted nodes
 158             #if node['slice_ids_whitelist']:
 159                 #if not slice or slice['slice_id'] not in node['slice_ids_whitelist']:
 160                     #continue
 161             rspec_node = Node()
 162             # xxx how to retrieve site['login_base']
 163             #site_id=node['site_id']
 164             #site=sites_dict[site_id]
 165             rspec_node['component_id'] = \
 166                                         hostname_to_urn(self.driver.root_auth, \
 167                                         node['site'], node['hostname'])
 168             rspec_node['component_name'] = node['hostname']
 169             rspec_node['component_manager_id'] = \
 170                             hrn_to_urn(self.driver.root_auth, 'authority+sa')
 171             #rspec_node['component_manager_id'] = Xrn(self.driver.root_auth, 'authority+sa').get_urn()
 172             rspec_node['authority_id'] = \
 173                 hrn_to_urn(PlXrn.site_hrn(self.driver.root_auth, \
 174                                                 node['site']), 'authority+sa')
 175             # do not include boot state (<available> element) in the manifest rspec
 176
 177             #if not slice:
 178             #    rspec_node['boot_state'] = node['boot_state']
 179             #    if node['hostname'] in reserved_nodes:
 180             #        rspec_node['boot_state'] = "Reserved"
 181             rspec_node['boot_state'] = node['boot_state']
 182             if node['hostname'] in reserved_nodes:
 183                 rspec_node['boot_state'] = "Reserved"
 184             rspec_node['exclusive'] = 'True'
 185             rspec_node['hardware_types'] = [HardwareType({'name': 'slab-node'})]
 186
 187             # only doing this because protogeni rspec needs
 188             # to advertise available initscripts
 189             #rspec_node['pl_initscripts'] = None
 190             # add site/interface info to nodes.
 191             # assumes that sites, interfaces and tags have already been prepared.
 192             #site = sites_dict[node['site_id']]
 193
 194             try:
 195                 if node['posx'] and node['posy']:
 196                     location = Location({'longitude':node['posx'], \
 197                                                     'latitude': node['posy']})
 198                     rspec_node['location'] = location
 199             except KeyError:
 200                 pass
 201             #rspec_node['interfaces'] = []
 202             #if_count=0
 203             #for if_id in node['interface_ids']:
 204                 #interface = Interface(interfaces[if_id])
 205                 #interface['ipv4'] = interface['ip']
 206                 #interface['component_id'] = PlXrn(auth=self.driver.hrn,
 207                                                 #interface='node%s:eth%s' % (node['node_id'], if_count)).get_urn()
 208                 # interfaces in the manifest need a client id
 209                 #if slice:
 210                     #interface['client_id'] = "%s:%s" % (node['node_id'], if_id)
 211                 #rspec_node['interfaces'].append(interface)
 212                 #if_count+=1
 213
 214             #tags = [PLTag(node_tags[tag_id]) for tag_id in node['node_tag_ids']]
 215             # Granularity
 216             granularity = Granularity({'grain': grain})
 217             rspec_node['granularity'] = granularity
 218             rspec_node['tags'] = []
 219             if node['hostname'] in slivers:
 220                 # add sliver info
 221                 sliver = slivers[node['hostname']]
 222                 rspec_node['sliver_id'] = sliver['sliver_id']
 223                 rspec_node['client_id'] = node['hostname']
 224                 rspec_node['slivers'] = [sliver]
 225
 226                 # slivers always provide the ssh service
 227                 #login = Login({'authentication': 'ssh-keys', 'hostname': node['hostname'], 'port':'22', 'username': sliver['name']})
 228                 #service = Services({'login': login})
 229                 #rspec_node['services'] = [service]
 230             rspec_nodes.append(rspec_node)
 231
 232         return (rspec_nodes)
 233
 234     def get_leases(self, slice_record = None, options = {}):
 235
 236         now = int(time.time())
 237         lease_filter = {'clip': now }
 238         #if slice_record:
 239             #lease_filter.update({'name': slice_record['name']})
 240         return_fields = ['lease_id', 'hostname', 'site_id', \
 241                             'name', 'start_time', 'duration']
 242         #leases = self.driver.GetLeases(lease_filter)
 243         leases = self.driver.GetLeases()
 244         grain = self.driver.GetLeaseGranularity()
 245         site_ids = []
 246         rspec_leases = []
 247         for lease in leases:
 248             #as many leases as there are nodes in the job
 249             for node in lease['reserved_nodes']:
 250                 rspec_lease = Lease()
 251                 rspec_lease['lease_id'] = lease['lease_id']
 252                 site = node['site_id']
 253                 rspec_lease['component_id'] = hostname_to_urn(self.driver.hrn, \
 254                                         site, node['hostname'])
 255                 rspec_lease['slice_id'] = lease['slice_id']
 256                 rspec_lease['start_time'] = lease['t_from']
 257                 rspec_lease['duration'] = (lease['t_until'] - lease['t_from']) / grain
 258                 rspec_leases.append(rspec_lease)
 259         return rspec_leases
 260
 261
 262         #rspec_leases = []
 263         #for lease in leases:
 264
 265             #rspec_lease = Lease()
 266
 267             ## xxx how to retrieve site['login_base']
 268
 269             #rspec_lease['lease_id'] = lease['lease_id']
 270             #rspec_lease['component_id'] = hostname_to_urn(self.driver.hrn, \
 271                                         #site['login_base'], lease['hostname'])
 272             #slice_hrn = slicename_to_hrn(self.driver.hrn, lease['name'])
 273             #slice_urn = hrn_to_urn(slice_hrn, 'slice')
 274             #rspec_lease['slice_id'] = slice_urn
 275             #rspec_lease['t_from'] = lease['t_from']
 276             #rspec_lease['t_until'] = lease['t_until']
 277             #rspec_leases.append(rspec_lease)
 278         #return rspec_leases
 279 #from plc/aggregate.py
 280     def get_rspec(self, slice_xrn=None, version = None, options={}):
 281
 282         rspec = None
 283         version_manager = VersionManager()
 284         version = version_manager.get_version(version)
 285         logger.debug("SlabAggregate \t get_rspec ***version %s \
 286                     version.type %s  version.version %s options %s \r\n" \
 287                     %(version,version.type,version.version,options))
 288
 289         if not slice_xrn:
 290             rspec_version = version_manager._get_version(version.type, \
 291                                                     version.version, 'ad')
 292
 293         else:
 294             rspec_version = version_manager._get_version(version.type, \
 295                                                 version.version, 'manifest')
 296
 297         slices, slivers = self.get_slice_and_slivers(slice_xrn)
 298         #at this point sliver may be empty if no senslab job is running for this user/slice.
 299         rspec = RSpec(version=rspec_version, user_options=options)
 300
 301
 302         #if slice and 'expires' in slice:
 303            #rspec.xml.set('expires',  datetime_to_epoch(slice['expires']))
 304          # add sliver defaults
 305         #nodes, links = self.get_nodes(slice, slivers)
 306         if not options.get('list_leases') or options.get('list_leases') and options['list_leases'] != 'leases':
 307             nodes = self.get_nodes(slices, slivers)
 308             rspec.version.add_nodes(nodes)
 309
 310             default_sliver = slivers.get(None, [])
 311             if default_sliver:
 312                 default_sliver_attribs = default_sliver.get('tags', [])
 313                 logger.debug("SlabAggregate \tget_rspec **** \
 314                         default_sliver_attribs %s \r\n" %(default_sliver_attribs))
 315                 for attrib in default_sliver_attribs:
 316
 317
 318                     rspec.version.add_default_sliver_attribute(attrib['tagname'], \
 319                                                                 attrib['value'])
 320         if options.get('list_leases') or options.get('list_leases') and options['list_leases'] != 'resources':
 321             leases = self.get_leases(slices)
 322             rspec.version.add_leases(leases)
 323
 324         logger.debug("SlabAggregate \tget_rspec ******* rspec_toxml %s \r\n"\
 325                                             %(rspec.toxml()))
 326         return rspec.toxml()