9 from types import StringTypes
10 from sfa.util.namespace import *
11 from sfa.util.rspec import *
12 from sfa.util.specdict import *
13 from sfa.util.faults import *
14 from sfa.util.record import SfaRecord
15 from sfa.util.policy import Policy
16 from sfa.util.prefixTree import prefixTree
22 rspec_to_slice_tag = {'max_rate':'net_max_rate'}
24 def __init__(self, api, ttl = .5, origin_hrn=None):
26 #filepath = path + os.sep + filename
27 self.policy = Policy(self.api)
28 self.origin_hrn = origin_hrn
30 def get_slivers(self, xrn, node=None):
31 hrn, type = urn_to_hrn(xrn)
33 slice_name = hrn_to_pl_slicename(hrn)
34 # XX Should we just call PLCAPI.GetSliceTicket(slice_name) instead
35 # of doing all of this?
36 #return self.api.GetSliceTicket(self.auth, slice_name)
38 # from PLCAPI.GetSlivers.get_slivers()
39 slice_fields = ['slice_id', 'name', 'instantiation', 'expires', 'person_ids', 'slice_tag_ids']
40 slices = self.api.plshell.GetSlices(self.api.plauth, slice_name, slice_fields)
41 # Build up list of users and slice attributes
43 all_slice_tag_ids = set()
45 person_ids.update(slice['person_ids'])
46 all_slice_tag_ids.update(slice['slice_tag_ids'])
47 person_ids = list(person_ids)
48 all_slice_tag_ids = list(all_slice_tag_ids)
49 # Get user information
50 all_persons_list = self.api.plshell.GetPersons(self.api.plauth, {'person_id':person_ids,'enabled':True}, ['person_id', 'enabled', 'key_ids'])
52 for person in all_persons_list:
53 all_persons[person['person_id']] = person
55 # Build up list of keys
57 for person in all_persons.values():
58 key_ids.update(person['key_ids'])
59 key_ids = list(key_ids)
60 # Get user account keys
61 all_keys_list = self.api.plshell.GetKeys(self.api.plauth, key_ids, ['key_id', 'key', 'key_type'])
63 for key in all_keys_list:
64 all_keys[key['key_id']] = key
65 # Get slice attributes
66 all_slice_tags_list = self.api.plshell.GetSliceTags(self.api.plauth, all_slice_tag_ids)
68 for slice_tag in all_slice_tags_list:
69 all_slice_tags[slice_tag['slice_tag_id']] = slice_tag
74 for person_id in slice['person_ids']:
75 if person_id in all_persons:
76 person = all_persons[person_id]
77 if not person['enabled']:
79 for key_id in person['key_ids']:
80 if key_id in all_keys:
81 key = all_keys[key_id]
82 keys += [{'key_type': key['key_type'],
85 # All (per-node and global) attributes for this slice
87 for slice_tag_id in slice['slice_tag_ids']:
88 if slice_tag_id in all_slice_tags:
89 slice_tags.append(all_slice_tags[slice_tag_id])
90 # Per-node sliver attributes take precedence over global
91 # slice attributes, so set them first.
92 # Then comes nodegroup slice attributes
93 # Followed by global slice attributes
94 sliver_attributes = []
97 for sliver_attribute in filter(lambda a: a['node_id'] == node['node_id'], slice_tags):
98 sliver_attributes.append(sliver_attribute['tagname'])
99 attributes.append({'tagname': sliver_attribute['tagname'],
100 'value': sliver_attribute['value']})
102 # set nodegroup slice attributes
103 for slice_tag in filter(lambda a: a['nodegroup_id'] in node['nodegroup_ids'], slice_tags):
104 # Do not set any nodegroup slice attributes for
105 # which there is at least one sliver attribute
107 if slice_tag not in slice_tags:
108 attributes.append({'tagname': slice_tag['tagname'],
109 'value': slice_tag['value']})
111 for slice_tag in filter(lambda a: a['node_id'] is None, slice_tags):
112 # Do not set any global slice attributes for
113 # which there is at least one sliver attribute
115 if slice_tag['tagname'] not in sliver_attributes:
116 attributes.append({'tagname': slice_tag['tagname'],
117 'value': slice_tag['value']})
119 # XXX Sanity check; though technically this should be a system invariant
120 # checked with an assertion
121 if slice['expires'] > MAXINT: slice['expires']= MAXINT
125 'name': slice['name'],
126 'slice_id': slice['slice_id'],
127 'instantiation': slice['instantiation'],
128 'expires': slice['expires'],
130 'attributes': attributes
135 def get_peer(self, xrn):
136 hrn, type = urn_to_hrn(xrn)
137 # Becaues of myplc federation, we first need to determine if this
138 # slice belongs to out local plc or a myplc peer. We will assume it
139 # is a local site, unless we find out otherwise
142 # get this slice's authority (site)
143 slice_authority = get_authority(hrn)
145 # get this site's authority (sfa root authority or sub authority)
146 site_authority = get_authority(slice_authority).lower()
148 # check if we are already peered with this site_authority, if so
149 peers = self.api.plshell.GetPeers(self.api.plauth, {}, ['peer_id', 'peername', 'shortname', 'hrn_root'])
150 for peer_record in peers:
151 names = [name.lower() for name in peer_record.values() if isinstance(name, StringTypes)]
152 if site_authority in names:
153 peer = peer_record['shortname']
157 def get_sfa_peer(self, xrn):
158 hrn, type = urn_to_hrn(xrn)
160 # return the authority for this hrn or None if we are the authority
162 slice_authority = get_authority(hrn)
163 site_authority = get_authority(slice_authority)
165 if site_authority != self.api.hrn:
166 sfa_peer = site_authority
170 def verify_site(self, registry, credential, slice_hrn, peer, sfa_peer, reg_objects=None):
171 authority = get_authority(slice_hrn)
172 authority_urn = hrn_to_urn(authority, 'authority')
175 site = reg_objects['site']
177 site_records = registry.Resolve(authority_urn, [credential])
179 for site_record in site_records:
180 if site_record['type'] == 'authority':
183 raise RecordNotFound(authority)
185 remote_site_id = site.pop('site_id')
187 login_base = get_leaf(authority)
188 sites = self.api.plshell.GetSites(self.api.plauth, login_base)
191 site_id = self.api.plshell.AddSite(self.api.plauth, site)
194 self.api.plshell.BindObjectToPeer(self.api.plauth, 'site', site_id, peer, remote_site_id)
196 self.api.plshell.DeleteSite(self.api.plauth, site_id)
198 # mark this site as an sfa peer record
199 if sfa_peer and not reg_objects:
200 peer_dict = {'type': 'authority', 'hrn': authority, 'peer_authority': sfa_peer, 'pointer': site_id}
201 registry.register_peer_object(credential, peer_dict)
203 site_id = sites[0]['site_id']
204 remote_site_id = sites[0]['peer_site_id']
207 #the site is already on the remote agg. Let us update(e.g. max_slices field) it with the latest info.
208 self.sync_site(old_site, site, peer)
211 return (site_id, remote_site_id)
213 def verify_slice(self, registry, credential, slice_hrn, site_id, remote_site_id, peer, sfa_peer, reg_objects=None):
216 authority = get_authority(slice_hrn)
219 slice_record = reg_objects['slice_record']
221 slice_records = registry.Resolve(slice_hrn, [credential])
223 for record in slice_records:
224 if record['type'] in ['slice']:
225 slice_record = record
227 raise RecordNotFound(hrn)
230 slicename = hrn_to_pl_slicename(slice_hrn)
231 parts = slicename.split("_")
232 login_base = parts[0]
233 slices = self.api.plshell.GetSlices(self.api.plauth, [slicename])
236 slice_keys = ['name', 'url', 'description']
237 for key in slice_keys:
238 if key in slice_record and slice_record[key]:
239 slice_fields[key] = slice_record[key]
242 slice_id = self.api.plshell.AddSlice(self.api.plauth, slice_fields)
244 slice['slice_id'] = slice_id
246 # mark this slice as an sfa peer record
248 peer_dict = {'type': 'slice', 'hrn': slice_hrn, 'peer_authority': sfa_peer, 'pointer': slice_id}
249 registry.register_peer_object(credential, peer_dict)
251 #this belongs to a peer
254 self.api.plshell.BindObjectToPeer(self.api.plauth, 'slice', slice_id, peer, slice_record['pointer'])
256 self.api.plshell.DeleteSlice(self.api.plauth,slice_id)
258 slice['node_ids'] = []
261 slice_id = slice['slice_id']
262 site_id = slice['site_id']
263 #the slice is alredy on the remote agg. Let us update(e.g. expires field) it with the latest info.
264 self.sync_slice(slice, slice_record, peer)
266 slice['peer_slice_id'] = slice_record['pointer']
267 self.verify_persons(registry, credential, slice_record, site_id, remote_site_id, peer, sfa_peer, reg_objects)
271 def verify_persons(self, registry, credential, slice_record, site_id, remote_site_id, peer, sfa_peer, reg_objects=None):
272 # get the list of valid slice users from the registry and make
273 # sure they are added to the slice
274 slicename = hrn_to_pl_slicename(slice_record['hrn'])
276 researchers = reg_objects['users'].keys()
278 researchers = slice_record.get('researcher', [])
279 for researcher in researchers:
281 person_dict = reg_objects['users'][researcher]
283 person_records = registry.Resolve(researcher, [credential])
284 for record in person_records:
285 if record['type'] in ['user'] and record['enabled']:
286 person_record = record
287 if not person_record:
289 person_dict = person_record
293 peer_id = self.api.plshell.GetPeers(self.api.plauth, {'shortname': peer}, ['peer_id'])[0]['peer_id']
294 persons = self.api.plshell.GetPersons(self.api.plauth, {'email': [person_dict['email']], 'peer_id': peer_id}, ['person_id', 'key_ids'])
296 persons = self.api.plshell.GetPersons(self.api.plauth, [person_dict['email']], ['person_id', 'key_ids'])
301 persons = self.api.plshell.GetPersons(self.api.plauth, [person_dict['email']], ['person_id', 'key_ids'])
304 person_id=self.api.plshell.AddPerson(self.api.plauth, person_dict)
305 self.api.plshell.UpdatePerson(self.api.plauth, person_id, {'enabled' : True})
307 # mark this person as an sfa peer record
309 peer_dict = {'type': 'user', 'hrn': researcher, 'peer_authority': sfa_peer, 'pointer': person_id}
310 registry.register_peer_object(credential, peer_dict)
314 self.api.plshell.BindObjectToPeer(self.api.plauth, 'person', person_id, peer, person_dict['pointer'])
316 self.api.plshell.DeletePerson(self.api.plauth,person_id)
320 person_id = persons[0]['person_id']
321 key_ids = persons[0]['key_ids']
324 # if this is a peer person, we must unbind them from the peer or PLCAPI will throw
327 if peer and not local_person:
328 self.api.plshell.UnBindObjectFromPeer(self.api.plauth, 'person', person_id, peer)
330 self.api.plshell.UnBindObjectFromPeer(self.api.plauth, 'site', site_id, peer)
332 self.api.plshell.AddPersonToSlice(self.api.plauth, person_dict['email'], slicename)
333 self.api.plshell.AddPersonToSite(self.api.plauth, person_dict['email'], site_id)
336 try: self.api.plshell.BindObjectToPeer(self.api.plauth, 'site', site_id, peer, remote_site_id)
338 if peer and not local_person:
339 try: self.api.plshell.BindObjectToPeer(self.api.plauth, 'person', person_id, peer, person_dict['pointer'])
342 self.verify_keys(registry, credential, person_dict, key_ids, person_id, peer, local_person)
344 def verify_keys(self, registry, credential, person_dict, key_ids, person_id, peer, local_person):
345 keylist = self.api.plshell.GetKeys(self.api.plauth, key_ids, ['key'])
346 keys = [key['key'] for key in keylist]
348 #add keys that arent already there
349 key_ids = person_dict['key_ids']
350 for personkey in person_dict['keys']:
351 if personkey not in keys:
352 key = {'key_type': 'ssh', 'key': personkey}
355 self.api.plshell.UnBindObjectFromPeer(self.api.plauth, 'person', person_id, peer)
356 key_id = self.api.plshell.AddPersonKey(self.api.plauth, person_dict['email'], key)
358 if peer and not local_person:
359 self.api.plshell.BindObjectToPeer(self.api.plauth, 'person', person_id, peer, person_dict['pointer'])
361 # xxx - thierry how are we getting the peer_key_id in here ?
362 try: self.api.plshell.BindObjectToPeer(self.api.plauth, 'key', key_id, peer, key_ids.pop(0))
365 def create_slice_aggregate(self, xrn, rspec):
366 hrn, type = urn_to_hrn(xrn)
367 # Determine if this is a peer slice
368 peer = self.get_peer(hrn)
369 sfa_peer = self.get_sfa_peer(hrn)
372 # Get the slice record from sfa
373 slicename = hrn_to_pl_slicename(hrn)
376 registry = self.api.registries[self.api.hrn]
377 credential = self.api.getCredential()
379 site_id, remote_site_id = self.verify_site(registry, credential, hrn, peer, sfa_peer)
380 slice = self.verify_slice(registry, credential, hrn, site_id, remote_site_id, peer, sfa_peer)
382 # find out where this slice is currently running
383 nodelist = self.api.plshell.GetNodes(self.api.plauth, slice['node_ids'], ['hostname'])
384 hostnames = [node['hostname'] for node in nodelist]
386 # get netspec details
387 nodespecs = spec.getDictsByTagName('NodeSpec')
389 # dict in which to store slice attributes to set for the nodes
391 for nodespec in nodespecs:
392 if isinstance(nodespec['name'], list):
393 for nodename in nodespec['name']:
395 for k in nodespec.keys():
396 rspec_attribute_value = nodespec[k]
397 if (self.rspec_to_slice_tag.has_key(k)):
398 slice_tag_name = self.rspec_to_slice_tag[k]
399 nodes[nodename][slice_tag_name] = rspec_attribute_value
400 elif isinstance(nodespec['name'], StringTypes):
401 nodename = nodespec['name']
403 for k in nodespec.keys():
404 rspec_attribute_value = nodespec[k]
405 if (self.rspec_to_slice_tag.has_key(k)):
406 slice_tag_name = self.rspec_to_slice_tag[k]
407 nodes[nodename][slice_tag_name] = rspec_attribute_value
409 for k in nodespec.keys():
410 rspec_attribute_value = nodespec[k]
411 if (self.rspec_to_slice_tag.has_key(k)):
412 slice_tag_name = self.rspec_to_slice_tag[k]
413 nodes[nodename][slice_tag_name] = rspec_attribute_value
415 node_names = nodes.keys()
416 # remove nodes not in rspec
417 deleted_nodes = list(set(hostnames).difference(node_names))
418 # add nodes from rspec
419 added_nodes = list(set(node_names).difference(hostnames))
423 self.api.plshell.UnBindObjectFromPeer(self.api.plauth, 'slice', slice['slice_id'], peer)
425 self.api.plshell.AddSliceToNodes(self.api.plauth, slicename, added_nodes)
427 # Add recognized slice tags
428 for node_name in node_names:
429 node = nodes[node_name]
430 for slice_tag in node.keys():
431 value = node[slice_tag]
432 if (isinstance(value, list)):
435 self.api.plshell.AddSliceTag(self.api.plauth, slicename, slice_tag, value, node_name)
437 self.api.plshell.DeleteSliceFromNodes(self.api.plauth, slicename, deleted_nodes)
440 self.api.plshell.BindObjectToPeer(self.api.plauth, 'slice', slice['slice_id'], peer, slice['peer_slice_id'])
444 def sync_site(self, old_record, new_record, peer):
445 if old_record['max_slices'] != new_record['max_slices'] or old_record['max_slivers'] != new_record['max_slivers']:
448 self.api.plshell.UnBindObjectFromPeer(self.api.plauth, 'site', old_record['site_id'], peer)
449 if old_record['max_slices'] != new_record['max_slices']:
450 self.api.plshell.UpdateSite(self.api.plauth, old_record['site_id'], {'max_slices' : new_record['max_slices']})
451 if old_record['max_slivers'] != new_record['max_slivers']:
452 self.api.plshell.UpdateSite(self.api.plauth, old_record['site_id'], {'max_slivers' : new_record['max_slivers']})
455 self.api.plshell.BindObjectToPeer(self.api.plauth, 'site', old_record['site_id'], peer, old_record['peer_site_id'])
458 def sync_slice(self, old_record, new_record, peer):
459 if old_record['expires'] != new_record['expires']:
462 self.api.plshell.UnBindObjectFromPeer(self.api.plauth, 'slice', old_record['slice_id'], peer)
463 self.api.plshell.UpdateSlice(self.api.plauth, old_record['slice_id'], {'expires' : new_record['expires']})
466 self.api.plshell.BindObjectToPeer(self.api.plauth, 'slice', old_record['slice_id'], peer, old_record['peer_slice_id'])