sfa/planetlab/plaggregate.py

   1 #!/usr/bin/python
   2 from sfa.util.xrn import Xrn, hrn_to_urn, urn_to_hrn
   3 from sfa.util.sfatime import utcparse, datetime_to_string
   4 from sfa.util.sfalogging import logger
   5
   6 from sfa.rspecs.rspec import RSpec
   7 from sfa.rspecs.elements.hardware_type import HardwareType
   8 from sfa.rspecs.elements.node import Node
   9 from sfa.rspecs.elements.link import Link
  10 from sfa.rspecs.elements.sliver import Sliver
  11 from sfa.rspecs.elements.login import Login
  12 from sfa.rspecs.elements.location import Location
  13 from sfa.rspecs.elements.interface import Interface
  14 from sfa.rspecs.elements.services import Services
  15 from sfa.rspecs.elements.pltag import PLTag
  16 from sfa.rspecs.elements.lease import Lease
  17 from sfa.rspecs.elements.granularity import Granularity
  18 from sfa.rspecs.version_manager import VersionManager
  19
  20 from sfa.planetlab.plxrn import PlXrn, hostname_to_urn, hrn_to_pl_slicename, slicename_to_hrn
  21 from sfa.planetlab.vlink import get_tc_rate
  22 from sfa.planetlab.topology import Topology
  23
  24 import time
  25
  26 class PlAggregate:
  27
  28     def __init__(self, driver):
  29         self.driver = driver
  30
  31     def get_sites(self, filter={}):
  32         sites = {}
  33         for site in self.driver.shell.GetSites(filter):
  34             sites[site['site_id']] = site
  35         return sites
  36
  37     def get_interfaces(self, filter={}):
  38         interfaces = {}
  39         for interface in self.driver.shell.GetInterfaces(filter):
  40             iface = Interface()
  41             if interface['bwlimit']:
  42                 interface['bwlimit'] = str(int(interface['bwlimit'])/1000)
  43             interfaces[interface['interface_id']] = interface
  44         return interfaces
  45
  46     def get_links(self, sites, nodes, interfaces):
  47
  48         topology = Topology()
  49         links = []
  50         for (site_id1, site_id2) in topology:
  51             site_id1 = int(site_id1)
  52             site_id2 = int(site_id2)
  53             link = Link()
  54             if not site_id1 in sites or site_id2 not in sites:
  55                 continue
  56             site1 = sites[site_id1]
  57             site2 = sites[site_id2]
  58             # get hrns
  59             site1_hrn = self.driver.hrn + '.' + site1['login_base']
  60             site2_hrn = self.driver.hrn + '.' + site2['login_base']
  61
  62             for s1_node_id in site1['node_ids']:
  63                 for s2_node_id in site2['node_ids']:
  64                     if s1_node_id not in nodes or s2_node_id not in nodes:
  65                         continue
  66                     node1 = nodes[s1_node_id]
  67                     node2 = nodes[s2_node_id]
  68                     # set interfaces
  69                     # just get first interface of the first node
  70                     if1_xrn = PlXrn(auth=self.driver.hrn, interface='node%s:eth0' % (node1['node_id']))
  71                     if1_ipv4 = interfaces[node1['interface_ids'][0]]['ip']
  72                     if2_xrn = PlXrn(auth=self.driver.hrn, interface='node%s:eth0' % (node2['node_id']))
  73                     if2_ipv4 = interfaces[node2['interface_ids'][0]]['ip']
  74
  75                     if1 = Interface({'component_id': if1_xrn.urn, 'ipv4': if1_ipv4} )
  76                     if2 = Interface({'component_id': if2_xrn.urn, 'ipv4': if2_ipv4} )
  77
  78                     # set link
  79                     link = Link({'capacity': '1000000', 'latency': '0', 'packet_loss': '0', 'type': 'ipv4'})
  80                     link['interface1'] = if1
  81                     link['interface2'] = if2
  82                     link['component_name'] = "%s:%s" % (site1['login_base'], site2['login_base'])
  83                     link['component_id'] = PlXrn(auth=self.driver.hrn, interface=link['component_name']).get_urn()
  84                     link['component_manager_id'] =  hrn_to_urn(self.driver.hrn, 'authority+am')
  85                     links.append(link)
  86
  87         return links
  88
  89     def get_node_tags(self, filter={}):
  90         node_tags = {}
  91         for node_tag in self.driver.shell.GetNodeTags(filter):
  92             node_tags[node_tag['node_tag_id']] = node_tag
  93         return node_tags
  94
  95     def get_pl_initscripts(self, filter={}):
  96         pl_initscripts = {}
  97         filter.update({'enabled': True})
  98         for initscript in self.driver.shell.GetInitScripts(filter):
  99             pl_initscripts[initscript['initscript_id']] = initscript
 100         return pl_initscripts
 101
 102
 103     def get_slice_and_slivers(self, slice_xrn):
 104         """
 105         Returns a dict of slivers keyed on the sliver's node_id
 106         """
 107         slivers = {}
 108         slice = None
 109         if not slice_xrn:
 110             return (slice, slivers)
 111         slice_urn = hrn_to_urn(slice_xrn, 'slice')
 112         slice_hrn, _ = urn_to_hrn(slice_xrn)
 113         slice_name = hrn_to_pl_slicename(slice_hrn)
 114         slices = self.driver.shell.GetSlices(slice_name)
 115         if not slices:
 116             return (slice, slivers)
 117         slice = slices[0]
 118
 119         # sort slivers by node id
 120         for node_id in slice['node_ids']:
 121             sliver_xrn = Xrn(slice_urn, type='sliver', id=node_id)
 122             sliver_xrn.set_authority(self.driver.hrn)
 123             sliver = Sliver({'sliver_id': sliver_xrn.urn,
 124                              'name': slice['name'],
 125                              'type': 'plab-vserver',
 126                              'tags': []})
 127             slivers[node_id]= sliver
 128
 129         # sort sliver attributes by node id
 130         tags = self.driver.shell.GetSliceTags({'slice_tag_id': slice['slice_tag_ids']})
 131         for tag in tags:
 132             # most likely a default/global sliver attribute (node_id == None)
 133             if tag['node_id'] not in slivers:
 134                 sliver_xrn = Xrn(slice_urn, type='sliver', id=tag['node_id'])
 135                 sliver_xrn.set_authority(self.driver.hrn)
 136                 sliver = Sliver({'sliver_id': sliver_xrn.urn,
 137                                  'name': slice['name'],
 138                                  'type': 'plab-vserver',
 139                                  'tags': []})
 140                 slivers[tag['node_id']] = sliver
 141             slivers[tag['node_id']]['tags'].append(tag)
 142
 143         return (slice, slivers)
 144
 145     def get_nodes_and_links(self, slice_xrn, slice=None,slivers=[], options={}, requested_slivers={}):
 146         # if we are dealing with a slice that has no node just return
 147         # and empty list
 148         if slice_xrn:
 149             if not slice or not slice['node_ids']:
 150                 return ([],[])
 151
 152         filter = {}
 153         tags_filter = {}
 154         if slice and 'node_ids' in slice and slice['node_ids']:
 155             filter['node_id'] = slice['node_ids']
 156             tags_filter=filter.copy()
 157
 158         geni_available = options.get('geni_available')
 159         if geni_available == True:
 160             filter['boot_state'] = 'boot'
 161
 162         filter.update({'peer_id': None})
 163         nodes = self.driver.shell.GetNodes(filter)
 164
 165         # get the granularity in second for the reservation system
 166         grain = self.driver.shell.GetLeaseGranularity()
 167
 168         site_ids = []
 169         interface_ids = []
 170         tag_ids = []
 171         nodes_dict = {}
 172         for node in nodes:
 173             site_ids.append(node['site_id'])
 174             interface_ids.extend(node['interface_ids'])
 175             tag_ids.extend(node['node_tag_ids'])
 176             nodes_dict[node['node_id']] = node
 177
 178         # get sites
 179         sites_dict  = self.get_sites({'site_id': site_ids})
 180         # get interfaces
 181         interfaces = self.get_interfaces({'interface_id':interface_ids})
 182         # get tags
 183         node_tags = self.get_node_tags(tags_filter)
 184         # get initscripts
 185         pl_initscripts = self.get_pl_initscripts()
 186
 187         links = self.get_links(sites_dict, nodes_dict, interfaces)
 188
 189         rspec_nodes = []
 190         for node in nodes:
 191             # skip whitelisted nodes
 192             if node['slice_ids_whitelist']:
 193                 if not slice or slice['slice_id'] not in node['slice_ids_whitelist']:
 194                     continue
 195             rspec_node = Node()
 196             # xxx how to retrieve site['login_base']
 197             site_id=node['site_id']
 198             site=sites_dict[site_id]
 199             rspec_node['component_id'] = hostname_to_urn(self.driver.hrn, site['login_base'], node['hostname'])
 200             rspec_node['component_name'] = node['hostname']
 201             rspec_node['component_manager_id'] = Xrn(self.driver.hrn, 'authority+cm').get_urn()
 202             rspec_node['authority_id'] = hrn_to_urn(PlXrn.site_hrn(self.driver.hrn, site['login_base']), 'authority+sa')
 203             if requested_slivers and node['hostname'] in requested_slivers:
 204                 requested_sliver = requested_slivers[node['hostname']]
 205                 if requested_sliver.get('client_id'):
 206                     rspec_node['client_id'] = requested_sliver['client_id']
 207             # do not include boot state (<available> element) in the manifest rspec
 208             if not slice:
 209                 rspec_node['boot_state'] = node['boot_state']
 210             rspec_node['exclusive'] = 'false'
 211             rspec_node['hardware_types'] = [HardwareType({'name': 'plab-pc'}),
 212                                             HardwareType({'name': 'pc'})]
 213             # only doing this because protogeni rspec needs
 214             # to advertise available initscripts
 215             rspec_node['pl_initscripts'] = pl_initscripts.values()
 216              # add site/interface info to nodes.
 217             # assumes that sites, interfaces and tags have already been prepared.
 218             site = sites_dict[node['site_id']]
 219             if site['longitude'] and site['latitude']:
 220                 location = Location({'longitude': site['longitude'], 'latitude': site['latitude'], 'country': 'unknown'})
 221                 rspec_node['location'] = location
 222             # Granularity
 223             granularity = Granularity({'grain': grain})
 224             rspec_node['granularity'] = granularity
 225
 226             rspec_node['interfaces'] = []
 227             if_count=0
 228             for if_id in node['interface_ids']:
 229                 interface = Interface(interfaces[if_id])
 230                 interface['ipv4'] = interface['ip']
 231                 interface['component_id'] = PlXrn(auth=self.driver.hrn,
 232                                                   interface='node%s:eth%s' % (node['node_id'], if_count)).get_urn()
 233                 # interfaces in the manifest need a client id
 234                 if slice:
 235                     interface['client_id'] = "%s:%s" % (node['node_id'], if_id)
 236                 rspec_node['interfaces'].append(interface)
 237                 if_count+=1
 238
 239             tags = [PLTag(node_tags[tag_id]) for tag_id in node['node_tag_ids']]
 240             rspec_node['tags'] = tags
 241             if node['node_id'] in slivers:
 242                 # add sliver info
 243                 sliver = slivers[node['node_id']]
 244                 rspec_node['sliver_id'] = sliver['sliver_id']
 245                 rspec_node['slivers'] = [sliver]
 246
 247                 # slivers always provide the ssh service
 248                 login = Login({'authentication': 'ssh-keys', 'hostname': node['hostname'], 'port':'22', 'username': sliver['name']})
 249                 service = Services({'login': login})
 250                 rspec_node['services'] = [service]
 251             rspec_nodes.append(rspec_node)
 252         return (rspec_nodes, links)
 253
 254
 255     def get_leases(self, slice=None, options={}):
 256
 257         now = int(time.time())
 258         filter={}
 259         filter.update({'clip':now})
 260         if slice:
 261            filter.update({'name':slice['name']})
 262         return_fields = ['lease_id', 'hostname', 'site_id', 'name', 't_from', 't_until']
 263         leases = self.driver.shell.GetLeases(filter)
 264         grain = self.driver.shell.GetLeaseGranularity()
 265
 266         site_ids = []
 267         for lease in leases:
 268             site_ids.append(lease['site_id'])
 269
 270         # get sites
 271         sites_dict  = self.get_sites({'site_id': site_ids})
 272
 273         rspec_leases = []
 274         for lease in leases:
 275
 276             rspec_lease = Lease()
 277
 278             # xxx how to retrieve site['login_base']
 279             site_id=lease['site_id']
 280             site=sites_dict[site_id]
 281
 282             rspec_lease['lease_id'] = lease['lease_id']
 283             rspec_lease['component_id'] = hostname_to_urn(self.driver.hrn, site['login_base'], lease['hostname'])
 284             slice_hrn = slicename_to_hrn(self.driver.hrn, lease['name'])
 285             slice_urn = hrn_to_urn(slice_hrn, 'slice')
 286             rspec_lease['slice_id'] = slice_urn
 287             rspec_lease['start_time'] = lease['t_from']
 288             rspec_lease['duration'] = (lease['t_until'] - lease['t_from']) / grain
 289             rspec_leases.append(rspec_lease)
 290         return rspec_leases
 291
 292
 293     def get_rspec(self, slice_xrn=None, version = None, options={}, requested_slivers={}):
 294
 295         version_manager = VersionManager()
 296         version = version_manager.get_version(version)
 297         if not slice_xrn:
 298             rspec_version = version_manager._get_version(version.type, version.version, 'ad')
 299         else:
 300             rspec_version = version_manager._get_version(version.type, version.version, 'manifest')
 301
 302         slice, slivers = self.get_slice_and_slivers(slice_xrn)
 303         rspec = RSpec(version=rspec_version, user_options=options)
 304         if slice and 'expires' in slice:
 305             rspec.xml.set('expires',  datetime_to_string(utcparse(slice['expires'])))
 306
 307         if not options.get('list_leases') or options.get('list_leases') and options['list_leases'] != 'leases':
 308             nodes, links = self.get_nodes_and_links(slice_xrn, slice, slivers, options,
 309                                                     requested_slivers=requested_slivers)
 310             rspec.version.add_nodes(nodes)
 311             rspec.version.add_links(links)
 312             # add sliver defaults
 313             default_sliver = slivers.get(None, [])
 314             if default_sliver:
 315                 default_sliver_attribs = default_sliver.get('tags', [])
 316                 for attrib in default_sliver_attribs:
 317                     logger.info(attrib)
 318                     rspec.version.add_default_sliver_attribute(attrib['tagname'], attrib['value'])
 319
 320         if not options.get('list_leases') or options.get('list_leases') and options['list_leases'] != 'resources':
 321            leases = self.get_leases(slice)
 322            rspec.version.add_leases(leases)
 323
 324         return rspec.toxml()
 325
 326