2 File providing methods to generate valid RSpecs for the Iotlab testbed.
3 Contains methods to get information on slice, slivers, nodes and leases,
4 formatting them and turn it into a RSpec.
6 from sfa.util.xrn import hrn_to_urn, urn_to_hrn, get_authority
8 from sfa.rspecs.rspec import RSpec
9 #from sfa.rspecs.elements.location import Location
10 from sfa.rspecs.elements.hardware_type import HardwareType
11 from sfa.rspecs.elements.login import Login
12 from sfa.rspecs.elements.services import Services
13 from sfa.rspecs.elements.sliver import Sliver
14 from sfa.rspecs.elements.lease import Lease
15 from sfa.rspecs.elements.granularity import Granularity
16 from sfa.rspecs.version_manager import VersionManager
18 from sfa.rspecs.elements.versions.iotlabv1Node import IotlabPosition, \
19 IotlabNode, IotlabLocation
21 from sfa.util.sfalogging import logger
22 from sfa.util.xrn import Xrn
25 def iotlab_xrn_to_hostname(xrn):
26 """Returns a node's hostname from its xrn.
27 :param xrn: The nodes xrn identifier.
28 :type xrn: Xrn (from sfa.util.xrn)
30 :returns: node's hostname.
34 return Xrn.unescape(Xrn(xrn=xrn, type='node').get_leaf())
37 def iotlab_xrn_object(root_auth, hostname):
38 """Creates a valid xrn object from the node's hostname and the authority
41 :param hostname: the node's hostname.
42 :param root_auth: the SFA root authority.
43 :type hostname: string
44 :type root_auth: string
46 :returns: the iotlab node's xrn
50 return Xrn('.'.join([root_auth, Xrn.escape(hostname)]), type='node')
53 class IotlabAggregate:
54 """Aggregate manager class for Iotlab. """
67 def __init__(self, driver):
70 def get_slice_and_slivers(self, slice_xrn, login=None):
72 Get the slices and the associated leases if any from the iotlab
73 testbed. One slice can have mutliple leases.
74 For each slice, get the nodes in the associated lease
75 and create a sliver with the necessary info and insert it into the
76 sliver dictionary, keyed on the node hostnames.
77 Returns a dict of slivers based on the sliver's node_id.
81 :param slice_xrn: xrn of the slice
82 :param login: user's login on iotlab ldap
84 :type slice_xrn: string
86 :returns: a list of slices dict and a list of Sliver object
89 .. note: There is no real slivers in iotlab, only leases. The goal
90 is to be consistent with the SFA standard.
96 return (sfa_slice, slivers)
97 slice_urn = hrn_to_urn(slice_xrn, 'slice')
98 slice_hrn, _ = urn_to_hrn(slice_xrn)
99 slice_name = slice_hrn
101 slices = self.driver.iotlab_api.GetSlices(slice_filter=str(slice_name),
102 slice_filter_type='slice_hrn',
105 logger.debug("IotlabAggregate api \tget_slice_and_slivers \
106 sfa_slice %s \r\n slices %s self.driver.hrn %s"
107 % (sfa_slice, slices, self.driver.hrn))
109 return (sfa_slice, slivers)
111 # sort slivers by node id , if there is a job
112 #and therefore, node allocated to this slice
113 for sfa_slice in slices:
115 node_ids_list = sfa_slice['node_ids']
117 logger.log_exc("IOTLABAGGREGATE \t \
118 get_slice_and_slivers No nodes in the slice \
122 for node in node_ids_list:
123 sliver_xrn = Xrn(slice_urn, type='sliver', id=node)
124 sliver_xrn.set_authority(self.driver.hrn)
125 sliver = Sliver({'sliver_id': sliver_xrn.urn,
126 'name': sfa_slice['hrn'],
127 'type': 'iotlab-node',
130 slivers[node] = sliver
132 #Add default sliver attribute :
133 #connection information for iotlab
134 if get_authority(sfa_slice['hrn']) == self.driver.iotlab_api.root_auth:
135 tmp = sfa_slice['hrn'].split('.')
136 ldap_username = tmp[1].split('_')[0]
138 slivers['default_sliver'] = {'ssh': ssh_access,
139 'login': ldap_username}
141 #TODO get_slice_and_slivers Find the login of the external user
143 logger.debug("IOTLABAGGREGATE api get_slice_and_slivers slivers %s "
145 return (slices, slivers)
148 def get_nodes(self, slices=None, slivers=[], options=None):
149 """Returns the nodes in the slice using the rspec format, with all the
152 Fetch the nodes ids in the slices dictionary and get all the nodes
153 properties from OAR. Makes a rspec dicitonary out of this and returns
154 it. If the slice does not have any job running or scheduled, that is
155 it has no reserved nodes, then returns an empty list.
157 :param slices: list of slices (record dictionaries)
158 :param slivers: the list of slivers in all the slices
159 :type slices: list of dicts
160 :type slivers: list of Sliver object (dictionaries)
161 :returns: An empty list if the slice has no reserved nodes, a rspec
162 list with all the nodes and their properties (a dict per node)
166 .. seealso:: get_slice_and_slivers
169 # NT: the semantic of this function is not clear to me :
170 # if slice is not defined, then all the nodes should be returned
171 # if slice is defined, we should return only the nodes that
172 # are part of this slice
173 # but what is the role of the slivers parameter ?
174 # So i assume that slice['node_ids'] will be the same as slivers for us
175 if slices is not None:
176 for one_slice in slices:
178 slice_nodes_list = one_slice['node_ids']
179 # if we are dealing with a slice that has no node just
180 # return an empty list. In iotlab a slice can have multiple
181 # jobs scheduled, so it either has at least one lease or
186 # get the granularity in second for the reservation system
187 grain = self.driver.iotlab_api.GetLeaseGranularity()
189 nodes = self.driver.iotlab_api.GetNodes()
193 #if slices, this means we got to list all the nodes given to this slice
194 # Make a list of all the nodes in the slice before getting their
197 slice_nodes_list = []
198 logger.debug("IOTLABAGGREGATE api get_nodes slice_nodes_list %s "
202 reserved_nodes = self.driver.iotlab_api.GetNodesCurrentlyInUse()
203 logger.debug("IOTLABAGGREGATE api get_nodes slice_nodes_list %s "
204 % (slice_nodes_list))
206 nodes_dict[node['node_id']] = node
207 if slice_nodes_list == [] or node['hostname'] in slice_nodes_list:
209 rspec_node = IotlabNode()
210 # xxx how to retrieve site['login_base']
211 #site_id=node['site_id']
212 #site=sites_dict[site_id]
214 rspec_node['mobile'] = node['mobile']
215 rspec_node['archi'] = node['archi']
216 rspec_node['radio'] = node['radio']
218 iotlab_xrn = iotlab_xrn_object(self.driver.iotlab_api.root_auth,
220 rspec_node['component_id'] = iotlab_xrn.urn
221 rspec_node['component_name'] = node['hostname']
222 rspec_node['component_manager_id'] = \
223 hrn_to_urn(self.driver.iotlab_api.root_auth,
226 # Iotlab's nodes are federated : there is only one authority
227 # for all Iotlab sites, registered in SFA.
228 # Removing the part including the site
229 # in authority_id SA 27/07/12
230 rspec_node['authority_id'] = rspec_node['component_manager_id']
232 # do not include boot state (<available> element)
233 #in the manifest rspec
236 rspec_node['boot_state'] = node['boot_state']
237 if node['hostname'] in reserved_nodes:
238 rspec_node['boot_state'] = "Reserved"
239 rspec_node['exclusive'] = 'true'
240 rspec_node['hardware_types'] = [HardwareType({'name': \
244 location = IotlabLocation({'country':'France', 'site': \
246 rspec_node['location'] = location
249 position = IotlabPosition()
250 for field in position :
252 position[field] = node[field]
253 except KeyError, error :
254 logger.log_exc("IOTLABAGGREGATE\t get_nodes \
255 position %s "% (error))
257 rspec_node['position'] = position
258 #rspec_node['interfaces'] = []
261 granularity = Granularity({'grain': grain})
262 rspec_node['granularity'] = granularity
263 rspec_node['tags'] = []
264 if node['hostname'] in slivers:
266 sliver = slivers[node['hostname']]
267 rspec_node['sliver_id'] = sliver['sliver_id']
268 rspec_node['client_id'] = node['hostname']
269 rspec_node['slivers'] = [sliver]
271 # slivers always provide the ssh service
272 login = Login({'authentication': 'ssh-keys', \
273 'hostname': node['hostname'], 'port':'22', \
274 'username': sliver['name']})
275 service = Services({'login': login})
276 rspec_node['services'] = [service]
277 rspec_nodes.append(rspec_node)
281 def get_all_leases(self):
284 Get list of lease dictionaries which all have the mandatory keys
285 ('lease_id', 'hostname', 'site_id', 'name', 'start_time', 'duration').
286 All the leases running or scheduled are returned.
288 :returns: rspec lease dictionary with keys lease_id, component_id,
289 slice_id, start_time, duration.
292 .. note::There is no filtering of leases within a given time frame.
293 All the running or scheduled leases are returned. options
294 removed SA 15/05/2013
299 #now = int(time.time())
300 #lease_filter = {'clip': now }
303 #lease_filter.update({'name': slice_record['name']})
305 #leases = self.driver.iotlab_api.GetLeases(lease_filter)
306 leases = self.driver.iotlab_api.GetLeases()
307 grain = self.driver.iotlab_api.GetLeaseGranularity()
311 #as many leases as there are nodes in the job
312 for node in lease['reserved_nodes']:
313 rspec_lease = Lease()
314 rspec_lease['lease_id'] = lease['lease_id']
315 #site = node['site_id']
316 iotlab_xrn = iotlab_xrn_object(self.driver.iotlab_api.root_auth,
318 rspec_lease['component_id'] = iotlab_xrn.urn
319 #rspec_lease['component_id'] = hostname_to_urn(self.driver.hrn,\
320 #site, node['hostname'])
322 rspec_lease['slice_id'] = lease['slice_id']
324 #No info on the slice used in iotlab_xp table
326 rspec_lease['start_time'] = lease['t_from']
327 rspec_lease['duration'] = (lease['t_until'] - lease['t_from']) \
329 rspec_leases.append(rspec_lease)
332 def get_rspec(self, slice_xrn=None, login=None, version=None,
337 - a full advertisement rspec with the testbed resources if slice_xrn
338 is not specified.If a lease option is given, also returns the
339 leases scheduled on the testbed.
340 - a manifest Rspec with the leases and nodes in slice's leases
341 if slice_xrn is not None.
343 :param slice_xrn: srn of the slice
344 :param login: user'uid (ldap login) on iotlab
345 :param version: can be set to sfa or iotlab
346 :param options: used to specify if the leases should also be included in
348 :type slice_xrn: string
350 :type version: RSpecVersion
360 version_manager = VersionManager()
361 version = version_manager.get_version(version)
362 logger.debug("IotlabAggregate \t get_rspec ***version %s \
363 version.type %s version.version %s options %s \r\n"
364 % (version, version.type, version.version, options))
366 if slice_xrn is None:
367 rspec_version = version_manager._get_version(version.type,
368 version.version, 'ad')
371 rspec_version = version_manager._get_version(
372 version.type, version.version, 'manifest')
374 slices, slivers = self.get_slice_and_slivers(slice_xrn, login)
375 #at this point sliver may be empty if no iotlab job
376 #is running for this user/slice.
377 rspec = RSpec(version=rspec_version, user_options=options)
379 logger.debug("\r\n \r\n IotlabAggregate \tget_rspec *** \
380 slice_xrn %s slices %s\r\n \r\n"
381 % (slice_xrn, slices))
383 if options is not None:
384 lease_option = options['list_leases']
386 #If no options are specified, at least print the resources
389 #lease_option = 'all'
391 if lease_option in ['all', 'resources']:
392 #if not options.get('list_leases') or options.get('list_leases')
393 #and options['list_leases'] != 'leases':
394 nodes = self.get_nodes(slices, slivers)
395 logger.debug("\r\n \r\n IotlabAggregate \t lease_option %s \
396 get rspec ******* nodes %s"
397 % (lease_option, nodes[0]))
399 sites_set = set([node['location']['site'] for node in nodes])
401 #In case creating a job, slice_xrn is not set to None
402 rspec.version.add_nodes(nodes)
404 #Get user associated with this slice
405 #for one_slice in slices :
406 ldap_username = slices[0]['hrn']
407 tmp = ldap_username.split('.')
408 ldap_username = tmp[1].split('_')[0]
410 if version.type == "Iotlab":
411 rspec.version.add_connection_information(
412 ldap_username, sites_set)
414 default_sliver = slivers.get('default_sliver', [])
416 #default_sliver_attribs = default_sliver.get('tags', [])
417 logger.debug("IotlabAggregate \tget_rspec **** \
418 default_sliver%s \r\n" % (default_sliver))
419 for attrib in default_sliver:
420 rspec.version.add_default_sliver_attribute(
421 attrib, default_sliver[attrib])
423 if lease_option in ['all','leases']:
424 leases = self.get_all_leases()
425 rspec.version.add_leases(leases)