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']
176 login_base = site['login_base']
178 site_records = registry.Resolve(authority_urn, [credential])
180 for site_record in site_records:
181 if site_record['type'] == 'authority':
184 raise RecordNotFound(authority)
186 remote_site_id = site.pop('site_id')
188 if login_base is None:
189 login_base = get_leaf(authority)
190 sites = self.api.plshell.GetSites(self.api.plauth, login_base)
193 site_id = self.api.plshell.AddSite(self.api.plauth, site)
196 self.api.plshell.BindObjectToPeer(self.api.plauth, 'site', site_id, peer, remote_site_id)
198 self.api.plshell.DeleteSite(self.api.plauth, site_id)
200 # mark this site as an sfa peer record
201 if sfa_peer and not reg_objects:
202 peer_dict = {'type': 'authority', 'hrn': authority, 'peer_authority': sfa_peer, 'pointer': site_id}
203 registry.register_peer_object(credential, peer_dict)
205 site_id = sites[0]['site_id']
206 remote_site_id = sites[0]['peer_site_id']
209 #the site is already on the remote agg. Let us update(e.g. max_slices field) it with the latest info.
210 self.sync_site(old_site, site, peer)
213 return (site_id, remote_site_id)
215 def verify_slice(self, registry, credential, slice_hrn, site_id, remote_site_id, peer, sfa_peer, reg_objects=None):
218 authority = get_authority(slice_hrn)
221 slice_record = reg_objects['slice_record']
223 slice_records = registry.Resolve(slice_hrn, [credential])
225 for record in slice_records:
226 if record['type'] in ['slice']:
227 slice_record = record
229 raise RecordNotFound(hrn)
232 slicename = hrn_to_pl_slicename(slice_hrn)
233 parts = slicename.split("_")
234 login_base = parts[0]
235 slices = self.api.plshell.GetSlices(self.api.plauth, [slicename])
238 slice_keys = ['name', 'url', 'description']
239 for key in slice_keys:
240 if key in slice_record and slice_record[key]:
241 slice_fields[key] = slice_record[key]
243 slice_id = self.api.plshell.AddSlice(self.api.plauth, slice_fields)
245 slice['slice_id'] = slice_id
247 # mark this slice as an sfa peer record
249 peer_dict = {'type': 'slice', 'hrn': slice_hrn, 'peer_authority': sfa_peer, 'pointer': slice_id}
250 registry.register_peer_object(credential, peer_dict)
252 #this belongs to a peer
255 self.api.plshell.BindObjectToPeer(self.api.plauth, 'slice', slice_id, peer, slice_record['pointer'])
257 self.api.plshell.DeleteSlice(self.api.plauth,slice_id)
259 slice['node_ids'] = []
262 slice_id = slice['slice_id']
263 site_id = slice['site_id']
264 #the slice is alredy on the remote agg. Let us update(e.g. expires field) it with the latest info.
265 self.sync_slice(slice, slice_record, peer)
267 slice['peer_slice_id'] = slice_record['pointer']
268 self.verify_persons(registry, credential, slice_record, site_id, remote_site_id, peer, sfa_peer, reg_objects)
272 def verify_persons(self, registry, credential, slice_record, site_id, remote_site_id, peer, sfa_peer, reg_objects=None):
273 # get the list of valid slice users from the registry and make
274 # sure they are added to the slice
275 slicename = hrn_to_pl_slicename(slice_record['hrn'])
277 researchers = reg_objects['users'].keys()
279 researchers = slice_record.get('researcher', [])
280 for researcher in researchers:
282 person_dict = reg_objects['users'][researcher]
284 person_records = registry.Resolve(researcher, [credential])
285 for record in person_records:
286 if record['type'] in ['user'] and record['enabled']:
287 person_record = record
288 if not person_record:
290 person_dict = person_record
294 peer_id = self.api.plshell.GetPeers(self.api.plauth, {'shortname': peer}, ['peer_id'])[0]['peer_id']
295 persons = self.api.plshell.GetPersons(self.api.plauth, {'email': [person_dict['email']], 'peer_id': peer_id}, ['person_id', 'key_ids'])
297 persons = self.api.plshell.GetPersons(self.api.plauth, [person_dict['email']], ['person_id', 'key_ids'])
302 persons = self.api.plshell.GetPersons(self.api.plauth, [person_dict['email']], ['person_id', 'key_ids'])
305 person_id=self.api.plshell.AddPerson(self.api.plauth, person_dict)
306 self.api.plshell.UpdatePerson(self.api.plauth, person_id, {'enabled' : True})
308 # mark this person as an sfa peer record
310 peer_dict = {'type': 'user', 'hrn': researcher, 'peer_authority': sfa_peer, 'pointer': person_id}
311 registry.register_peer_object(credential, peer_dict)
315 self.api.plshell.BindObjectToPeer(self.api.plauth, 'person', person_id, peer, person_dict['pointer'])
317 self.api.plshell.DeletePerson(self.api.plauth,person_id)
321 person_id = persons[0]['person_id']
322 key_ids = persons[0]['key_ids']
325 # if this is a peer person, we must unbind them from the peer or PLCAPI will throw
328 if peer and not local_person:
329 self.api.plshell.UnBindObjectFromPeer(self.api.plauth, 'person', person_id, peer)
331 self.api.plshell.UnBindObjectFromPeer(self.api.plauth, 'site', site_id, peer)
333 self.api.plshell.AddPersonToSlice(self.api.plauth, person_dict['email'], slicename)
334 self.api.plshell.AddPersonToSite(self.api.plauth, person_dict['email'], site_id)
337 try: self.api.plshell.BindObjectToPeer(self.api.plauth, 'site', site_id, peer, remote_site_id)
339 if peer and not local_person:
340 try: self.api.plshell.BindObjectToPeer(self.api.plauth, 'person', person_id, peer, person_dict['pointer'])
343 self.verify_keys(registry, credential, person_dict, key_ids, person_id, peer, local_person)
345 def verify_keys(self, registry, credential, person_dict, key_ids, person_id, peer, local_person):
346 keylist = self.api.plshell.GetKeys(self.api.plauth, key_ids, ['key'])
347 keys = [key['key'] for key in keylist]
349 #add keys that arent already there
350 key_ids = person_dict['key_ids']
351 for personkey in person_dict['keys']:
352 if personkey not in keys:
353 key = {'key_type': 'ssh', 'key': personkey}
356 self.api.plshell.UnBindObjectFromPeer(self.api.plauth, 'person', person_id, peer)
357 key_id = self.api.plshell.AddPersonKey(self.api.plauth, person_dict['email'], key)
359 if peer and not local_person:
360 self.api.plshell.BindObjectToPeer(self.api.plauth, 'person', person_id, peer, person_dict['pointer'])
362 # xxx - thierry how are we getting the peer_key_id in here ?
363 try: self.api.plshell.BindObjectToPeer(self.api.plauth, 'key', key_id, peer, key_ids.pop(0))
366 def create_slice_aggregate(self, xrn, rspec):
367 hrn, type = urn_to_hrn(xrn)
368 # Determine if this is a peer slice
369 peer = self.get_peer(hrn)
370 sfa_peer = self.get_sfa_peer(hrn)
373 # Get the slice record from sfa
374 slicename = hrn_to_pl_slicename(hrn)
377 registry = self.api.registries[self.api.hrn]
378 credential = self.api.getCredential()
380 site_id, remote_site_id = self.verify_site(registry, credential, hrn, peer, sfa_peer)
381 slice = self.verify_slice(registry, credential, hrn, site_id, remote_site_id, peer, sfa_peer)
383 # find out where this slice is currently running
384 nodelist = self.api.plshell.GetNodes(self.api.plauth, slice['node_ids'], ['hostname'])
385 hostnames = [node['hostname'] for node in nodelist]
387 # get netspec details
388 nodespecs = spec.getDictsByTagName('NodeSpec')
390 # dict in which to store slice attributes to set for the nodes
392 for nodespec in nodespecs:
393 if isinstance(nodespec['name'], list):
394 for nodename in nodespec['name']:
396 for k in nodespec.keys():
397 rspec_attribute_value = nodespec[k]
398 if (self.rspec_to_slice_tag.has_key(k)):
399 slice_tag_name = self.rspec_to_slice_tag[k]
400 nodes[nodename][slice_tag_name] = rspec_attribute_value
401 elif isinstance(nodespec['name'], StringTypes):
402 nodename = nodespec['name']
404 for k in nodespec.keys():
405 rspec_attribute_value = nodespec[k]
406 if (self.rspec_to_slice_tag.has_key(k)):
407 slice_tag_name = self.rspec_to_slice_tag[k]
408 nodes[nodename][slice_tag_name] = rspec_attribute_value
410 for k in nodespec.keys():
411 rspec_attribute_value = nodespec[k]
412 if (self.rspec_to_slice_tag.has_key(k)):
413 slice_tag_name = self.rspec_to_slice_tag[k]
414 nodes[nodename][slice_tag_name] = rspec_attribute_value
416 node_names = nodes.keys()
417 # remove nodes not in rspec
418 deleted_nodes = list(set(hostnames).difference(node_names))
419 # add nodes from rspec
420 added_nodes = list(set(node_names).difference(hostnames))
424 self.api.plshell.UnBindObjectFromPeer(self.api.plauth, 'slice', slice['slice_id'], peer)
426 self.api.plshell.AddSliceToNodes(self.api.plauth, slicename, added_nodes)
428 # Add recognized slice tags
429 for node_name in node_names:
430 node = nodes[node_name]
431 for slice_tag in node.keys():
432 value = node[slice_tag]
433 if (isinstance(value, list)):
436 self.api.plshell.AddSliceTag(self.api.plauth, slicename, slice_tag, value, node_name)
438 self.api.plshell.DeleteSliceFromNodes(self.api.plauth, slicename, deleted_nodes)
441 self.api.plshell.BindObjectToPeer(self.api.plauth, 'slice', slice['slice_id'], peer, slice['peer_slice_id'])
445 def sync_site(self, old_record, new_record, peer):
446 if old_record['max_slices'] != new_record['max_slices'] or old_record['max_slivers'] != new_record['max_slivers']:
449 self.api.plshell.UnBindObjectFromPeer(self.api.plauth, 'site', old_record['site_id'], peer)
450 if old_record['max_slices'] != new_record['max_slices']:
451 self.api.plshell.UpdateSite(self.api.plauth, old_record['site_id'], {'max_slices' : new_record['max_slices']})
452 if old_record['max_slivers'] != new_record['max_slivers']:
453 self.api.plshell.UpdateSite(self.api.plauth, old_record['site_id'], {'max_slivers' : new_record['max_slivers']})
456 self.api.plshell.BindObjectToPeer(self.api.plauth, 'site', old_record['site_id'], peer, old_record['peer_site_id'])
459 def sync_slice(self, old_record, new_record, peer):
460 if old_record['expires'] != new_record['expires']:
463 self.api.plshell.UnBindObjectFromPeer(self.api.plauth, 'slice', old_record['slice_id'], peer)
464 self.api.plshell.UpdateSlice(self.api.plauth, old_record['slice_id'], {'expires' : new_record['expires']})
467 self.api.plshell.BindObjectToPeer(self.api.plauth, 'slice', old_record['slice_id'], peer, old_record['peer_slice_id'])