sfa/planetlab/plaggregate.py

   1 #!/usr/bin/python
   2 from collections import defaultdict
   3 from sfa.util.xrn import Xrn, hrn_to_urn, urn_to_hrn
   4 from sfa.util.sfatime import utcparse, datetime_to_string
   5 from sfa.util.sfalogging import logger
   6 from sfa.util.faults import SliverDoesNotExist
   7 from sfa.rspecs.rspec import RSpec
   8 from sfa.rspecs.elements.hardware_type import HardwareType
   9 from sfa.rspecs.elements.node import Node
  10 from sfa.rspecs.elements.link import Link
  11 from sfa.rspecs.elements.sliver import Sliver
  12 from sfa.rspecs.elements.login import Login
  13 from sfa.rspecs.elements.location import Location
  14 from sfa.rspecs.elements.interface import Interface
  15 from sfa.rspecs.elements.services import Services
  16 from sfa.rspecs.elements.pltag import PLTag
  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.planetlab.plxrn import PlXrn, hostname_to_urn, hrn_to_pl_slicename, slicename_to_hrn
  22 from sfa.planetlab.vlink import get_tc_rate
  23 from sfa.planetlab.topology import Topology
  24 from sfa.storage.alchemy import dbsession
  25 from sfa.storage.model import SliverAllocation
  26
  27
  28 import time
  29
  30 class PlAggregate:
  31
  32     def __init__(self, driver):
  33         self.driver = driver
  34
  35     def get_nodes(self, options={}):
  36         filter = {'peer_id': None}
  37         geni_available = options.get('geni_available')
  38         if geni_available == True:
  39             filter['boot_state'] = 'boot'
  40         nodes = self.driver.shell.GetNodes(filter)
  41
  42         return nodes
  43
  44     def get_sites(self, filter={}):
  45         sites = {}
  46         for site in self.driver.shell.GetSites(filter):
  47             sites[site['site_id']] = site
  48         return sites
  49
  50     def get_interfaces(self, filter={}):
  51         interfaces = {}
  52         for interface in self.driver.shell.GetInterfaces(filter):
  53             iface = Interface()
  54             if interface['bwlimit']:
  55                 interface['bwlimit'] = str(int(interface['bwlimit'])/1000)
  56             interfaces[interface['interface_id']] = interface
  57         return interfaces
  58
  59     def get_links(self, sites, nodes, interfaces):
  60
  61         topology = Topology()
  62         links = []
  63         for (site_id1, site_id2) in topology:
  64             site_id1 = int(site_id1)
  65             site_id2 = int(site_id2)
  66             link = Link()
  67             if not site_id1 in sites or site_id2 not in sites:
  68                 continue
  69             site1 = sites[site_id1]
  70             site2 = sites[site_id2]
  71             # get hrns
  72             site1_hrn = self.driver.hrn + '.' + site1['login_base']
  73             site2_hrn = self.driver.hrn + '.' + site2['login_base']
  74
  75             for s1_node_id in site1['node_ids']:
  76                 for s2_node_id in site2['node_ids']:
  77                     if s1_node_id not in nodes or s2_node_id not in nodes:
  78                         continue
  79                     node1 = nodes[s1_node_id]
  80                     node2 = nodes[s2_node_id]
  81                     # set interfaces
  82                     # just get first interface of the first node
  83                     if1_xrn = PlXrn(auth=self.driver.hrn, interface='node%s:eth0' % (node1['node_id']))
  84                     if1_ipv4 = interfaces[node1['interface_ids'][0]]['ip']
  85                     if2_xrn = PlXrn(auth=self.driver.hrn, interface='node%s:eth0' % (node2['node_id']))
  86                     if2_ipv4 = interfaces[node2['interface_ids'][0]]['ip']
  87
  88                     if1 = Interface({'component_id': if1_xrn.urn, 'ipv4': if1_ipv4} )
  89                     if2 = Interface({'component_id': if2_xrn.urn, 'ipv4': if2_ipv4} )
  90
  91                     # set link
  92                     link = Link({'capacity': '1000000', 'latency': '0', 'packet_loss': '0', 'type': 'ipv4'})
  93                     link['interface1'] = if1
  94                     link['interface2'] = if2
  95                     link['component_name'] = "%s:%s" % (site1['login_base'], site2['login_base'])
  96                     link['component_id'] = PlXrn(auth=self.driver.hrn, interface=link['component_name']).get_urn()
  97                     link['component_manager_id'] =  hrn_to_urn(self.driver.hrn, 'authority+am')
  98                     links.append(link)
  99
 100         return links
 101
 102     def get_node_tags(self, filter={}):
 103         node_tags = {}
 104         for node_tag in self.driver.shell.GetNodeTags(filter):
 105             node_tags[node_tag['node_tag_id']] = node_tag
 106         return node_tags
 107
 108     def get_pl_initscripts(self, filter={}):
 109         pl_initscripts = {}
 110         filter.update({'enabled': True})
 111         for initscript in self.driver.shell.GetInitScripts(filter):
 112             pl_initscripts[initscript['initscript_id']] = initscript
 113         return pl_initscripts
 114
 115     def get_slivers(self, urns, options={}):
 116         names = set()
 117         slice_ids = set()
 118         node_ids = []
 119         for urn in urns:
 120             xrn = PlXrn(xrn=urn)
 121             if xrn.type == 'sliver':
 122                  # id: slice_id-node_id
 123                 id_parts = xrn.leaf.split('-')
 124                 slice_ids.add(id_parts[0])
 125                 node_ids.append(id_parts[1])
 126             else:
 127                 names.add(xrn.pl_slicename())
 128             if xrn.id:
 129                 ids.add(xrn.id)
 130
 131         filter = {}
 132         if names:
 133             filter['name'] = list(names)
 134         if slice_ids:
 135             filter['slice_id'] = list(slice_ids)
 136         slices = self.driver.shell.GetSlices(filter)
 137         if not slices:
 138             return []
 139         slice = slices[0]
 140         if node_ids:
 141             slice['node_ids'] = node_ids
 142         tags_dict = self.get_slice_tags(slice)
 143         nodes_dict = self.get_slice_nodes(slice, options)
 144         slivers = []
 145         for node in nodes_dict.values():
 146             node.update(slices[0])
 147             node['tags'] = tags_dict[node['node_id']]
 148             sliver_hrn = '%s.%s-%s' % (self.driver.hrn, slice['slice_id'], node['node_id'])
 149             node['sliver_id'] = Xrn(sliver_hrn, type='sliver').urn
 150             node['urn'] = node['sliver_id']
 151             slivers.append(node)
 152         return slivers
 153
 154     def node_to_rspec_node(self, node, sites, interfaces, node_tags, pl_initscripts=[], grain=None, options={}):
 155         rspec_node = Node()
 156         # xxx how to retrieve site['login_base']
 157         site=sites[node['site_id']]
 158         rspec_node['component_id'] = hostname_to_urn(self.driver.hrn, site['login_base'], node['hostname'])
 159         rspec_node['component_name'] = node['hostname']
 160         rspec_node['component_manager_id'] = Xrn(self.driver.hrn, 'authority+cm').get_urn()
 161         rspec_node['authority_id'] = hrn_to_urn(PlXrn.site_hrn(self.driver.hrn, site['login_base']), 'authority+sa')
 162         # do not include boot state (<available> element) in the manifest rspec
 163         rspec_node['boot_state'] = node['boot_state']
 164         if node['boot_state'] == 'boot':
 165             rspec_node['available'] = 'true'
 166         else:
 167             rspec_node['available'] = 'false'
 168         rspec_node['exclusive'] = 'false'
 169         rspec_node['hardware_types'] = [HardwareType({'name': 'plab-pc'}),
 170                                         HardwareType({'name': 'pc'})]
 171         # only doing this because protogeni rspec needs
 172         # to advertise available initscripts
 173         rspec_node['pl_initscripts'] = pl_initscripts.values()
 174         # add site/interface info to nodes.
 175         # assumes that sites, interfaces and tags have already been prepared.
 176         if site['longitude'] and site['latitude']:
 177             location = Location({'longitude': site['longitude'], 'latitude': site['latitude'], 'country': 'unknown'})
 178             rspec_node['location'] = location
 179         # Granularity
 180         granularity = Granularity({'grain': grain})
 181         rspec_node['granularity'] = granularity
 182         rspec_node['interfaces'] = []
 183         if_count=0
 184         for if_id in node['interface_ids']:
 185             interface = Interface(interfaces[if_id])
 186             interface['ipv4'] = interface['ip']
 187             interface['component_id'] = PlXrn(auth=self.driver.hrn,
 188                                               interface='node%s:eth%s' % (node['node_id'], if_count)).get_urn()
 189             # interfaces in the manifest need a client id
 190             if slice:
 191                 interface['client_id'] = "%s:%s" % (node['node_id'], if_id)
 192             rspec_node['interfaces'].append(interface)
 193             if_count+=1
 194         tags = [PLTag(node_tags[tag_id]) for tag_id in node['node_tag_ids']]
 195         rspec_node['tags'] = tags
 196         return rspec_node
 197
 198     def sliver_to_rspec_node(self, sliver, sites, interfaces, node_tags, pl_initscripts):
 199         # get the granularity in second for the reservation system
 200         grain = self.driver.shell.GetLeaseGranularity()
 201         rspec_node = self.node_to_rspec_node(sliver, sites, interfaces, node_tags, pl_initscripts, grain)
 202         # xxx how to retrieve site['login_base']
 203         rspec_node['expires'] = datetime_to_string(utcparse(sliver['expires']))
 204         # remove interfaces from manifest
 205         rspec_node['interfaces'] = []
 206         # add sliver info
 207         rspec_sliver = Sliver({'sliver_id': sliver['urn'],
 208                          'name': sliver['name'],
 209                          'type': 'plab-vserver',
 210                          'tags': []})
 211         rspec_node['sliver_id'] = rspec_sliver['sliver_id']
 212         rspec_node['client_id'] = sliver['hostname']
 213         rspec_node['slivers'] = [rspec_sliver]
 214
 215         # slivers always provide the ssh service
 216         login = Login({'authentication': 'ssh-keys', 'hostname': sliver['hostname'], 'port':'22', 'username': sliver['name']})
 217         service = Services({'login': login})
 218         rspec_node['services'] = [service]
 219         return rspec_node
 220
 221     def get_slice_tags(self, slice):
 222         slice_tag_ids = []
 223         slice_tag_ids.extend(slice['slice_tag_ids'])
 224         tags = self.driver.shell.GetSliceTags({'slice_tag_id': slice_tag_ids})
 225         # sorted by node_id
 226         tags_dict = defaultdict(list)
 227         for tag in tags:
 228             tags_dict[tag['node_id']] = tag
 229         return tags_dict
 230
 231     def get_slice_nodes(self, slice, options={}):
 232         nodes_dict = {}
 233         filter = {'peer_id': None}
 234         tags_filter = {}
 235         if slice and slice.get('node_ids'):
 236             filter['node_id'] = slice['node_ids']
 237         else:
 238             # there are no nodes to look up
 239             return nodes_dict
 240         tags_filter=filter.copy()
 241         geni_available = options.get('geni_available')
 242         if geni_available == True:
 243             filter['boot_state'] = 'boot'
 244         nodes = self.driver.shell.GetNodes(filter)
 245         for node in nodes:
 246             nodes_dict[node['node_id']] = node
 247         return nodes_dict
 248
 249     def rspec_node_to_geni_sliver(self, rspec_node, sliver_allocations = {}):
 250         if rspec_node['sliver_id'] in sliver_allocations:
 251             # set sliver allocation and operational status
 252             sliver_allocation = sliver_allocations[rspec_node['sliver_id']]
 253             if sliver_allocation:
 254                 allocation_status = sliver_allocation.allocation_state
 255                 if allocation_status == 'geni_allocated':
 256                     op_status =  'geni_pending_allocation'
 257                 elif allocation_status == 'geni_provisioned':
 258                     if rspec_node['boot_state'] == 'boot':
 259                         op_status = 'geni_ready'
 260                     else:
 261                         op_status = 'geni_failed'
 262                 else:
 263                     op_status = 'geni_unknown'
 264             else:
 265                 allocation_status = 'geni_unallocated'
 266         # required fields
 267         geni_sliver = {'geni_sliver_urn': rspec_node['sliver_id'],
 268                        'geni_expires': rspec_node['expires'],
 269                        'geni_allocation_status' : allocation_status,
 270                        'geni_operational_status': op_status,
 271                        'geni_error': None,
 272                        }
 273         return geni_sliver
 274
 275     def get_leases(self, slice=None, options={}):
 276
 277         now = int(time.time())
 278         filter={}
 279         filter.update({'clip':now})
 280         if slice:
 281            filter.update({'name':slice['name']})
 282         return_fields = ['lease_id', 'hostname', 'site_id', 'name', 't_from', 't_until']
 283         leases = self.driver.shell.GetLeases(filter)
 284         grain = self.driver.shell.GetLeaseGranularity()
 285
 286         site_ids = []
 287         for lease in leases:
 288             site_ids.append(lease['site_id'])
 289
 290         # get sites
 291         sites_dict  = self.get_sites({'site_id': site_ids})
 292
 293         rspec_leases = []
 294         for lease in leases:
 295
 296             rspec_lease = Lease()
 297
 298             # xxx how to retrieve site['login_base']
 299             site_id=lease['site_id']
 300             site=sites_dict[site_id]
 301
 302             rspec_lease['lease_id'] = lease['lease_id']
 303             rspec_lease['component_id'] = hostname_to_urn(self.driver.hrn, site['login_base'], lease['hostname'])
 304             slice_hrn = slicename_to_hrn(self.driver.hrn, lease['name'])
 305             slice_urn = hrn_to_urn(slice_hrn, 'slice')
 306             rspec_lease['slice_id'] = slice_urn
 307             rspec_lease['start_time'] = lease['t_from']
 308             rspec_lease['duration'] = (lease['t_until'] - lease['t_from']) / grain
 309             rspec_leases.append(rspec_lease)
 310         return rspec_leases
 311
 312
 313     def list_resources(self, version = None, options={}):
 314
 315         version_manager = VersionManager()
 316         version = version_manager.get_version(version)
 317         rspec_version = version_manager._get_version(version.type, version.version, 'ad')
 318         rspec = RSpec(version=rspec_version, user_options=options)
 319
 320         if not options.get('list_leases') or options['list_leases'] != 'leases':
 321             # get nodes
 322             nodes  = self.get_nodes(options)
 323             site_ids = []
 324             interface_ids = []
 325             tag_ids = []
 326             nodes_dict = {}
 327             for node in nodes:
 328                 site_ids.append(node['site_id'])
 329                 interface_ids.extend(node['interface_ids'])
 330                 tag_ids.extend(node['node_tag_ids'])
 331                 nodes_dict[node['node_id']] = node
 332             sites = self.get_sites({'site_id': site_ids})
 333             interfaces = self.get_interfaces({'interface_id':interface_ids})
 334             node_tags = self.get_node_tags({'node_tag_id': tag_ids})
 335             pl_initscripts = self.get_pl_initscripts()
 336             # convert nodes to rspec nodes
 337             rspec_nodes = []
 338             for node in nodes:
 339                 rspec_node = self.node_to_rspec_node(node, sites, interfaces, node_tags, pl_initscripts)
 340                 rspec_nodes.append(rspec_node)
 341             rspec.version.add_nodes(rspec_nodes)
 342
 343             # add links
 344             links = self.get_links(sites, nodes_dict, interfaces)
 345             rspec.version.add_links(links)
 346         return rspec.toxml()
 347
 348     def describe(self, urns, version=None, options={}):
 349         version_manager = VersionManager()
 350         version = version_manager.get_version(version)
 351         rspec_version = version_manager._get_version(version.type, version.version, 'manifest')
 352         rspec = RSpec(version=rspec_version, user_options=options)
 353
 354         # get slivers
 355         geni_slivers = []
 356         slivers = self.get_slivers(urns, options)
 357         if len(slivers) == 0:
 358             raise SliverDoesNotExist("You have not allocated any slivers here for %s" % str(urns))
 359         rspec.xml.set('expires',  datetime_to_string(utcparse(slivers[0]['expires'])))
 360
 361         # lookup the sliver allocations
 362         sliver_ids = [sliver['sliver_id'] for sliver in slivers]
 363         constraint = SliverAllocation.sliver_id.in_(sliver_ids)
 364         sliver_allocations = dbsession.query(SliverAllocation).filter(constraint)
 365         sliver_allocation_dict = {}
 366         for sliver_allocation in sliver_allocations:
 367             sliver_allocation_dict[sliver_allocation.sliver_id] = sliver_allocation
 368
 369         if not options.get('list_leases') or options['list_leases'] != 'leases':
 370             # add slivers
 371             site_ids = []
 372             interface_ids = []
 373             tag_ids = []
 374             nodes_dict = {}
 375             for sliver in slivers:
 376                 site_ids.append(sliver['site_id'])
 377                 interface_ids.extend(sliver['interface_ids'])
 378                 tag_ids.extend(sliver['node_tag_ids'])
 379                 nodes_dict[sliver['node_id']] = sliver
 380             sites = self.get_sites({'site_id': site_ids})
 381             interfaces = self.get_interfaces({'interface_id':interface_ids})
 382             node_tags = self.get_node_tags({'node_tag_id': tag_ids})
 383             pl_initscripts = self.get_pl_initscripts()
 384             rspec_nodes = []
 385             for sliver in slivers:
 386                 if sliver['slice_ids_whitelist'] and sliver['slice_id'] not in sliver['slice_ids_whitelist']:
 387                     continue
 388                 rspec_node = self.sliver_to_rspec_node(sliver, sites, interfaces, node_tags, pl_initscripts)
 389                 # manifest node element shouldn't contain available attribute
 390                 rspec_node.pop('available')
 391                 rspec_nodes.append(rspec_node)
 392                 geni_sliver = self.rspec_node_to_geni_sliver(rspec_node, sliver_allocation_dict)
 393                 geni_slivers.append(geni_sliver)
 394             rspec.version.add_nodes(rspec_nodes)
 395
 396             # add sliver defaults
 397             #default_sliver = slivers.get(None, [])
 398             #if default_sliver:
 399             #    default_sliver_attribs = default_sliver.get('tags', [])
 400             #    for attrib in default_sliver_attribs:
 401             #        rspec.version.add_default_sliver_attribute(attrib['tagname'], attrib['value'])
 402
 403             # add links
 404             links = self.get_links(sites, nodes_dict, interfaces)
 405             rspec.version.add_links(links)
 406
 407         if not options.get('list_leases') or options['list_leases'] != 'resources':
 408             leases = self.get_leases(slivers[0])
 409             rspec.version.add_leases(leases)
 410
 411
 412         return {'geni_urn': urns[0],
 413                 'geni_rspec': rspec.toxml(),
 414                 'geni_slivers': geni_slivers}