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
17 from sfa.util.debug import log
23 rspec_to_slice_tag = {'max_rate':'net_max_rate'}
25 def __init__(self, api, ttl = .5, origin_hrn=None):
27 #filepath = path + os.sep + filename
28 self.policy = Policy(self.api)
29 self.origin_hrn = origin_hrn
31 def get_slivers(self, xrn, node=None):
32 hrn, type = urn_to_hrn(xrn)
34 slice_name = hrn_to_pl_slicename(hrn)
35 # XX Should we just call PLCAPI.GetSliceTicket(slice_name) instead
36 # of doing all of this?
37 #return self.api.GetSliceTicket(self.auth, slice_name)
39 # from PLCAPI.GetSlivers.get_slivers()
40 slice_fields = ['slice_id', 'name', 'instantiation', 'expires', 'person_ids', 'slice_tag_ids']
41 slices = self.api.plshell.GetSlices(self.api.plauth, slice_name, slice_fields)
42 # Build up list of users and slice attributes
44 all_slice_tag_ids = set()
46 person_ids.update(slice['person_ids'])
47 all_slice_tag_ids.update(slice['slice_tag_ids'])
48 person_ids = list(person_ids)
49 all_slice_tag_ids = list(all_slice_tag_ids)
50 # Get user information
51 all_persons_list = self.api.plshell.GetPersons(self.api.plauth, {'person_id':person_ids,'enabled':True}, ['person_id', 'enabled', 'key_ids'])
53 for person in all_persons_list:
54 all_persons[person['person_id']] = person
56 # Build up list of keys
58 for person in all_persons.values():
59 key_ids.update(person['key_ids'])
60 key_ids = list(key_ids)
61 # Get user account keys
62 all_keys_list = self.api.plshell.GetKeys(self.api.plauth, key_ids, ['key_id', 'key', 'key_type'])
64 for key in all_keys_list:
65 all_keys[key['key_id']] = key
66 # Get slice attributes
67 all_slice_tags_list = self.api.plshell.GetSliceTags(self.api.plauth, all_slice_tag_ids)
69 for slice_tag in all_slice_tags_list:
70 all_slice_tags[slice_tag['slice_tag_id']] = slice_tag
75 for person_id in slice['person_ids']:
76 if person_id in all_persons:
77 person = all_persons[person_id]
78 if not person['enabled']:
80 for key_id in person['key_ids']:
81 if key_id in all_keys:
82 key = all_keys[key_id]
83 keys += [{'key_type': key['key_type'],
86 # All (per-node and global) attributes for this slice
88 for slice_tag_id in slice['slice_tag_ids']:
89 if slice_tag_id in all_slice_tags:
90 slice_tags.append(all_slice_tags[slice_tag_id])
91 # Per-node sliver attributes take precedence over global
92 # slice attributes, so set them first.
93 # Then comes nodegroup slice attributes
94 # Followed by global slice attributes
95 sliver_attributes = []
98 for sliver_attribute in filter(lambda a: a['node_id'] == node['node_id'], slice_tags):
99 sliver_attributes.append(sliver_attribute['tagname'])
100 attributes.append({'tagname': sliver_attribute['tagname'],
101 'value': sliver_attribute['value']})
103 # set nodegroup slice attributes
104 for slice_tag in filter(lambda a: a['nodegroup_id'] in node['nodegroup_ids'], slice_tags):
105 # Do not set any nodegroup slice attributes for
106 # which there is at least one sliver attribute
108 if slice_tag not in slice_tags:
109 attributes.append({'tagname': slice_tag['tagname'],
110 'value': slice_tag['value']})
112 for slice_tag in filter(lambda a: a['node_id'] is None, slice_tags):
113 # Do not set any global slice attributes for
114 # which there is at least one sliver attribute
116 if slice_tag['tagname'] not in sliver_attributes:
117 attributes.append({'tagname': slice_tag['tagname'],
118 'value': slice_tag['value']})
120 # XXX Sanity check; though technically this should be a system invariant
121 # checked with an assertion
122 if slice['expires'] > MAXINT: slice['expires']= MAXINT
126 'name': slice['name'],
127 'slice_id': slice['slice_id'],
128 'instantiation': slice['instantiation'],
129 'expires': slice['expires'],
131 'attributes': attributes
136 def get_peer(self, xrn):
137 hrn, type = urn_to_hrn(xrn)
138 # Becaues of myplc federation, we first need to determine if this
139 # slice belongs to out local plc or a myplc peer. We will assume it
140 # is a local site, unless we find out otherwise
143 # get this slice's authority (site)
144 slice_authority = get_authority(hrn)
146 # get this site's authority (sfa root authority or sub authority)
147 site_authority = get_authority(slice_authority).lower()
149 # check if we are already peered with this site_authority, if so
150 peers = self.api.plshell.GetPeers(self.api.plauth, {}, ['peer_id', 'peername', 'shortname', 'hrn_root'])
151 for peer_record in peers:
152 names = [name.lower() for name in peer_record.values() if isinstance(name, StringTypes)]
153 if site_authority in names:
154 peer = peer_record['shortname']
158 def get_sfa_peer(self, xrn):
159 hrn, type = urn_to_hrn(xrn)
161 # return the authority for this hrn or None if we are the authority
163 slice_authority = get_authority(hrn)
164 site_authority = get_authority(slice_authority)
166 if site_authority != self.api.hrn:
167 sfa_peer = site_authority
171 def verify_site(self, registry, credential, slice_hrn, peer, sfa_peer, reg_objects=None):
172 authority = get_authority(slice_hrn)
173 authority_urn = hrn_to_urn(authority, 'authority')
176 site = reg_objects['site']
178 site_records = registry.resolve(credential, authority_urn)
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 login_base = get_leaf(authority)
189 sites = self.api.plshell.GetSites(self.api.plauth, login_base)
192 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)
195 # mark this site as an sfa peer record
196 if sfa_peer and not reg_objects:
197 peer_dict = {'type': 'authority', 'hrn': authority, 'peer_authority': sfa_peer, 'pointer': site_id}
198 registry.register_peer_object(credential, peer_dict)
200 site_id = sites[0]['site_id']
201 remote_site_id = sites[0]['peer_site_id']
204 #the site is already on the remote agg. Let us update(e.g. max_slices field) it with the latest info.
205 self.sync_site(old_site, site, peer)
208 return (site_id, remote_site_id)
210 def verify_slice(self, registry, credential, slice_hrn, site_id, remote_site_id, peer, sfa_peer, reg_objects=None):
213 authority = get_authority(slice_hrn)
214 slice_records = registry.resolve(credential, slice_hrn)
216 for record in slice_records:
217 if record['type'] in ['slice']:
218 slice_record = record
220 raise RecordNotFound(hrn)
221 slicename = hrn_to_pl_slicename(slice_hrn)
222 parts = slicename.split("_")
223 login_base = parts[0]
224 slices = self.api.plshell.GetSlices(self.api.plauth, [slicename])
227 slice_keys = ['name', 'url', 'description']
228 for key in slice_keys:
229 if key in slice_record and slice_record[key]:
230 slice_fields[key] = slice_record[key]
233 slice_id = self.api.plshell.AddSlice(self.api.plauth, slice_fields)
235 slice['slice_id'] = slice_id
237 # mark this slice as an sfa peer record
239 peer_dict = {'type': 'slice', 'hrn': slice_hrn, 'peer_authority': sfa_peer, 'pointer': slice_id}
240 registry.register_peer_object(credential, peer_dict)
242 #this belongs to a peer
244 self.api.plshell.BindObjectToPeer(self.api.plauth, 'slice', slice_id, peer, slice_record['pointer'])
245 slice['node_ids'] = []
248 slice_id = slice['slice_id']
249 site_id = slice['site_id']
250 #the slice is alredy on the remote agg. Let us update(e.g. expires field) it with the latest info.
251 self.sync_slice(slice, slice_record, peer)
253 slice['peer_slice_id'] = slice_record['pointer']
254 self.verify_persons(registry, credential, slice_record, site_id, remote_site_id, peer, sfa_peer)
258 def verify_persons(self, registry, credential, slice_record, site_id, remote_site_id, peer, sfa_peer):
259 # get the list of valid slice users from the registry and make
260 # sure they are added to the slice
261 slicename = hrn_to_pl_slicename(slice_record['hrn'])
262 researchers = slice_record.get('researcher', [])
263 for researcher in researchers:
265 person_records = registry.resolve(credential, researcher)
266 for record in person_records:
267 if record['type'] in ['user'] and record['enabled']:
268 person_record = record
269 if not person_record:
271 person_dict = person_record
274 peer_id = self.api.plshell.GetPeers(self.api.plauth, {'shortname': peer}, ['peer_id'])[0]['peer_id']
275 persons = self.api.plshell.GetPersons(self.api.plauth, {'email': [person_dict['email']], 'peer_id': peer_id}, ['person_id', 'key_ids'])
277 persons = self.api.plshell.GetPersons(self.api.plauth, [person_dict['email']], ['person_id', 'key_ids'])
282 persons = self.api.plshell.GetPersons(self.api.plauth, [person_dict['email']], ['person_id', 'key_ids'])
285 person_id=self.api.plshell.AddPerson(self.api.plauth, person_dict)
286 self.api.plshell.UpdatePerson(self.api.plauth, person_id, {'enabled' : True})
288 # mark this person as an sfa peer record
290 peer_dict = {'type': 'user', 'hrn': researcher, 'peer_authority': sfa_peer, 'pointer': person_id}
291 registry.register_peer_object(credential, peer_dict)
294 self.api.plshell.BindObjectToPeer(self.api.plauth, 'person', person_id, peer, person_dict['pointer'])
297 person_id = persons[0]['person_id']
298 key_ids = persons[0]['key_ids']
301 # if this is a peer person, we must unbind them from the peer or PLCAPI will throw
304 self.api.plshell.UnBindObjectFromPeer(self.api.plauth, 'person', person_id, peer)
305 self.api.plshell.UnBindObjectFromPeer(self.api.plauth, 'site', site_id, peer)
307 self.api.plshell.AddPersonToSlice(self.api.plauth, person_dict['email'], slicename)
308 self.api.plshell.AddPersonToSite(self.api.plauth, person_dict['email'], site_id)
309 if peer and not local_person:
310 self.api.plshell.BindObjectToPeer(self.api.plauth, 'person', person_id, peer, person_dict['pointer'])
312 self.api.plshell.BindObjectToPeer(self.api.plauth, 'site', site_id, peer, remote_site_id)
314 self.verify_keys(registry, credential, person_dict, key_ids, person_id, peer, local_person)
316 def verify_keys(self, registry, credential, person_dict, key_ids, person_id, peer, local_person):
317 keylist = self.api.plshell.GetKeys(self.api.plauth, key_ids, ['key'])
318 keys = [key['key'] for key in keylist]
320 #add keys that arent already there
321 key_ids = person_dict['key_ids']
322 for personkey in person_dict['keys']:
323 if personkey not in keys:
324 key = {'key_type': 'ssh', 'key': personkey}
326 self.api.plshell.UnBindObjectFromPeer(self.api.plauth, 'person', person_id, peer)
327 key_id = self.api.plshell.AddPersonKey(self.api.plauth, person_dict['email'], key)
328 if peer and not local_person:
329 self.api.plshell.BindObjectToPeer(self.api.plauth, 'person', person_id, peer, person_dict['pointer'])
331 try: self.api.plshell.BindObjectToPeer(self.api.plauth, 'key', key_id, peer, key_ids.pop(0))
335 def create_slice_aggregate(self, xrn, rspec):
336 hrn, type = urn_to_hrn(xrn)
337 # Determine if this is a peer slice
338 peer = self.get_peer(hrn)
339 sfa_peer = self.get_sfa_peer(hrn)
342 # Get the slice record from sfa
343 slicename = hrn_to_pl_slicename(hrn)
346 registry = self.api.registries[self.api.hrn]
347 credential = self.api.getCredential()
349 site_id, remote_site_id = self.verify_site(registry, credential, hrn, peer, sfa_peer)
350 slice = self.verify_slice(registry, credential, hrn, site_id, remote_site_id, peer, sfa_peer)
352 # find out where this slice is currently running
353 nodelist = self.api.plshell.GetNodes(self.api.plauth, slice['node_ids'], ['hostname'])
354 hostnames = [node['hostname'] for node in nodelist]
356 # get netspec details
357 nodespecs = spec.getDictsByTagName('NodeSpec')
359 # dict in which to store slice attributes to set for the nodes
361 for nodespec in nodespecs:
362 if isinstance(nodespec['name'], list):
363 for nodename in nodespec['name']:
365 for k in nodespec.keys():
366 rspec_attribute_value = nodespec[k]
367 if (self.rspec_to_slice_tag.has_key(k)):
368 slice_tag_name = self.rspec_to_slice_tag[k]
369 nodes[nodename][slice_tag_name] = rspec_attribute_value
370 elif isinstance(nodespec['name'], StringTypes):
371 nodename = nodespec['name']
373 for k in nodespec.keys():
374 rspec_attribute_value = nodespec[k]
375 if (self.rspec_to_slice_tag.has_key(k)):
376 slice_tag_name = self.rspec_to_slice_tag[k]
377 nodes[nodename][slice_tag_name] = rspec_attribute_value
379 for k in nodespec.keys():
380 rspec_attribute_value = nodespec[k]
381 if (self.rspec_to_slice_tag.has_key(k)):
382 slice_tag_name = self.rspec_to_slice_tag[k]
383 nodes[nodename][slice_tag_name] = rspec_attribute_value
385 node_names = nodes.keys()
386 # remove nodes not in rspec
387 deleted_nodes = list(set(hostnames).difference(node_names))
388 # add nodes from rspec
389 added_nodes = list(set(node_names).difference(hostnames))
392 self.api.plshell.UnBindObjectFromPeer(self.api.plauth, 'slice', slice['slice_id'], peer)
394 self.api.plshell.AddSliceToNodes(self.api.plauth, slicename, added_nodes)
396 # Add recognized slice tags
397 for node_name in node_names:
398 node = nodes[node_name]
399 for slice_tag in node.keys():
400 value = node[slice_tag]
401 if (isinstance(value, list)):
404 self.api.plshell.AddSliceTag(self.api.plauth, slicename, slice_tag, value, node_name)
406 self.api.plshell.DeleteSliceFromNodes(self.api.plauth, slicename, deleted_nodes)
408 self.api.plshell.BindObjectToPeer(self.api.plauth, 'slice', slice['slice_id'], peer, slice['peer_slice_id'])
412 def sync_site(self, old_record, new_record, peer):
413 if old_record['max_slices'] != new_record['max_slices'] or old_record['max_slivers'] != new_record['max_slivers']:
415 self.api.plshell.UnBindObjectFromPeer(self.api.plauth, 'site', old_record['site_id'], peer)
416 if old_record['max_slices'] != new_record['max_slices']:
417 self.api.plshell.UpdateSite(self.api.plauth, old_record['site_id'], {'max_slices' : new_record['max_slices']})
418 if old_record['max_slivers'] != new_record['max_slivers']:
419 self.api.plshell.UpdateSite(self.api.plauth, old_record['site_id'], {'max_slivers' : new_record['max_slivers']})
421 self.api.plshell.BindObjectToPeer(self.api.plauth, 'site', old_record['site_id'], peer, old_record['peer_site_id'])
424 def sync_slice(self, old_record, new_record, peer):
425 if old_record['expires'] != new_record['expires']:
427 self.api.plshell.UnBindObjectFromPeer(self.api.plauth, 'slice', old_record['slice_id'], peer)
428 self.api.plshell.UpdateSlice(self.api.plauth, old_record['slice_id'], {'expires' : new_record['expires']})
430 self.api.plshell.BindObjectToPeer(self.api.plauth, 'slice', old_record['slice_id'], peer, old_record['peer_slice_id'])