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):
172 authority = get_authority(slice_hrn)
173 authority_urn = hrn_to_urn(authority, 'authority')
174 site_records = registry.resolve(credential, authority_urn)
177 for site_record in site_records:
178 if site_record['type'] == 'authority':
181 raise RecordNotFound(authority)
182 remote_site_id = site.pop('site_id')
184 login_base = get_leaf(authority)
185 sites = self.api.plshell.GetSites(self.api.plauth, login_base)
187 site_id = self.api.plshell.AddSite(self.api.plauth, site)
189 self.api.plshell.BindObjectToPeer(self.api.plauth, 'site', site_id, peer, remote_site_id)
190 # mark this site as an sfa peer record
192 peer_dict = {'type': 'authority', 'hrn': authority, 'peer_authority': sfa_peer, 'pointer': site_id}
193 registry.register_peer_object(credential, peer_dict)
195 site_id = sites[0]['site_id']
196 remote_site_id = sites[0]['peer_site_id']
198 #the site is alredy on the remote agg. Let us update(e.g. max_slices field) it with the latest info.
199 self.sync_site(old_site, site, peer)
202 return (site_id, remote_site_id)
204 def verify_slice(self, registry, credential, slice_hrn, site_id, remote_site_id, peer, sfa_peer):
207 authority = get_authority(slice_hrn)
208 slice_records = registry.resolve(credential, slice_hrn)
210 for record in slice_records:
211 if record['type'] in ['slice']:
212 slice_record = record
214 raise RecordNotFound(hrn)
215 slicename = hrn_to_pl_slicename(slice_hrn)
216 parts = slicename.split("_")
217 login_base = parts[0]
218 slices = self.api.plshell.GetSlices(self.api.plauth, [slicename])
221 slice_keys = ['name', 'url', 'description']
222 for key in slice_keys:
223 if key in slice_record and slice_record[key]:
224 slice_fields[key] = slice_record[key]
227 slice_id = self.api.plshell.AddSlice(self.api.plauth, slice_fields)
229 slice['slice_id'] = slice_id
231 # mark this slice as an sfa peer record
233 peer_dict = {'type': 'slice', 'hrn': slice_hrn, 'peer_authority': sfa_peer, 'pointer': slice_id}
234 registry.register_peer_object(credential, peer_dict)
236 #this belongs to a peer
238 self.api.plshell.BindObjectToPeer(self.api.plauth, 'slice', slice_id, peer, slice_record['pointer'])
239 slice['node_ids'] = []
242 slice_id = slice['slice_id']
243 site_id = slice['site_id']
244 #the slice is alredy on the remote agg. Let us update(e.g. expires field) it with the latest info.
245 self.sync_slice(slice, slice_record, peer)
247 slice['peer_slice_id'] = slice_record['pointer']
248 self.verify_persons(registry, credential, slice_record, site_id, remote_site_id, peer, sfa_peer)
252 def verify_persons(self, registry, credential, slice_record, site_id, remote_site_id, peer, sfa_peer):
253 # get the list of valid slice users from the registry and make
254 # sure they are added to the slice
255 slicename = hrn_to_pl_slicename(slice_record['hrn'])
256 researchers = slice_record.get('researcher', [])
257 for researcher in researchers:
259 person_records = registry.resolve(credential, researcher)
260 for record in person_records:
261 if record['type'] in ['user'] and record['enabled']:
262 person_record = record
263 if not person_record:
265 person_dict = person_record
268 peer_id = self.api.plshell.GetPeers(self.api.plauth, {'shortname': peer}, ['peer_id'])[0]['peer_id']
269 persons = self.api.plshell.GetPersons(self.api.plauth, {'email': [person_dict['email']], 'peer_id': peer_id}, ['person_id', 'key_ids'])
271 persons = self.api.plshell.GetPersons(self.api.plauth, [person_dict['email']], ['person_id', 'key_ids'])
276 persons = self.api.plshell.GetPersons(self.api.plauth, [person_dict['email']], ['person_id', 'key_ids'])
279 person_id=self.api.plshell.AddPerson(self.api.plauth, person_dict)
280 self.api.plshell.UpdatePerson(self.api.plauth, person_id, {'enabled' : True})
282 # mark this person as an sfa peer record
284 peer_dict = {'type': 'user', 'hrn': researcher, 'peer_authority': sfa_peer, 'pointer': person_id}
285 registry.register_peer_object(credential, peer_dict)
288 self.api.plshell.BindObjectToPeer(self.api.plauth, 'person', person_id, peer, person_dict['pointer'])
291 person_id = persons[0]['person_id']
292 key_ids = persons[0]['key_ids']
295 # if this is a peer person, we must unbind them from the peer or PLCAPI will throw
298 self.api.plshell.UnBindObjectFromPeer(self.api.plauth, 'person', person_id, peer)
299 self.api.plshell.UnBindObjectFromPeer(self.api.plauth, 'site', site_id, peer)
301 self.api.plshell.AddPersonToSlice(self.api.plauth, person_dict['email'], slicename)
302 self.api.plshell.AddPersonToSite(self.api.plauth, person_dict['email'], site_id)
303 if peer and not local_person:
304 self.api.plshell.BindObjectToPeer(self.api.plauth, 'person', person_id, peer, person_dict['pointer'])
306 self.api.plshell.BindObjectToPeer(self.api.plauth, 'site', site_id, peer, remote_site_id)
308 self.verify_keys(registry, credential, person_dict, key_ids, person_id, peer, local_person)
310 def verify_keys(self, registry, credential, person_dict, key_ids, person_id, peer, local_person):
311 keylist = self.api.plshell.GetKeys(self.api.plauth, key_ids, ['key'])
312 keys = [key['key'] for key in keylist]
314 #add keys that arent already there
315 key_ids = person_dict['key_ids']
316 for personkey in person_dict['keys']:
317 if personkey not in keys:
318 key = {'key_type': 'ssh', 'key': personkey}
320 self.api.plshell.UnBindObjectFromPeer(self.api.plauth, 'person', person_id, peer)
321 key_id = self.api.plshell.AddPersonKey(self.api.plauth, person_dict['email'], key)
322 if peer and not local_person:
323 self.api.plshell.BindObjectToPeer(self.api.plauth, 'person', person_id, peer, person_dict['pointer'])
325 try: self.api.plshell.BindObjectToPeer(self.api.plauth, 'key', key_id, peer, key_ids.pop(0))
329 def create_slice_aggregate(self, xrn, rspec):
330 hrn, type = urn_to_hrn(xrn)
331 # Determine if this is a peer slice
332 peer = self.get_peer(hrn)
333 sfa_peer = self.get_sfa_peer(hrn)
336 # Get the slice record from sfa
337 slicename = hrn_to_pl_slicename(hrn)
340 registry = self.api.registries[self.api.hrn]
341 credential = self.api.getCredential()
343 site_id, remote_site_id = self.verify_site(registry, credential, hrn, peer, sfa_peer)
344 slice = self.verify_slice(registry, credential, hrn, site_id, remote_site_id, peer, sfa_peer)
346 # find out where this slice is currently running
347 nodelist = self.api.plshell.GetNodes(self.api.plauth, slice['node_ids'], ['hostname'])
348 hostnames = [node['hostname'] for node in nodelist]
350 # get netspec details
351 nodespecs = spec.getDictsByTagName('NodeSpec')
353 # dict in which to store slice attributes to set for the nodes
355 for nodespec in nodespecs:
356 if isinstance(nodespec['name'], list):
357 for nodename in nodespec['name']:
359 for k in nodespec.keys():
360 rspec_attribute_value = nodespec[k]
361 if (self.rspec_to_slice_tag.has_key(k)):
362 slice_tag_name = self.rspec_to_slice_tag[k]
363 nodes[nodename][slice_tag_name] = rspec_attribute_value
364 elif isinstance(nodespec['name'], StringTypes):
365 nodename = nodespec['name']
367 for k in nodespec.keys():
368 rspec_attribute_value = nodespec[k]
369 if (self.rspec_to_slice_tag.has_key(k)):
370 slice_tag_name = self.rspec_to_slice_tag[k]
371 nodes[nodename][slice_tag_name] = rspec_attribute_value
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 node_names = nodes.keys()
380 # remove nodes not in rspec
381 deleted_nodes = list(set(hostnames).difference(node_names))
382 # add nodes from rspec
383 added_nodes = list(set(node_names).difference(hostnames))
386 self.api.plshell.UnBindObjectFromPeer(self.api.plauth, 'slice', slice['slice_id'], peer)
388 self.api.plshell.AddSliceToNodes(self.api.plauth, slicename, added_nodes)
390 # Add recognized slice tags
391 for node_name in node_names:
392 node = nodes[node_name]
393 for slice_tag in node.keys():
394 value = node[slice_tag]
395 if (isinstance(value, list)):
398 self.api.plshell.AddSliceTag(self.api.plauth, slicename, slice_tag, value, node_name)
400 self.api.plshell.DeleteSliceFromNodes(self.api.plauth, slicename, deleted_nodes)
402 self.api.plshell.BindObjectToPeer(self.api.plauth, 'slice', slice['slice_id'], peer, slice['peer_slice_id'])
406 def sync_site(self, old_record, new_record, peer):
407 if old_record['max_slices'] != new_record['max_slices'] or old_record['max_slivers'] != new_record['max_slivers']:
409 self.api.plshell.UnBindObjectFromPeer(self.api.plauth, 'site', old_record['site_id'], peer)
410 if old_record['max_slices'] != new_record['max_slices']:
411 self.api.plshell.UpdateSite(self.api.plauth, old_record['site_id'], {'max_slices' : new_record['max_slices']})
412 if old_record['max_slivers'] != new_record['max_slivers']:
413 self.api.plshell.UpdateSite(self.api.plauth, old_record['site_id'], {'max_slivers' : new_record['max_slivers']})
415 self.api.plshell.BindObjectToPeer(self.api.plauth, 'site', old_record['site_id'], peer, old_record['peer_site_id'])
418 def sync_slice(self, old_record, new_record, peer):
419 if old_record['expires'] != new_record['expires']:
421 self.api.plshell.UnBindObjectFromPeer(self.api.plauth, 'slice', old_record['slice_id'], peer)
422 self.api.plshell.UpdateSlice(self.api.plauth, old_record['slice_id'], {'expires' : new_record['expires']})
424 self.api.plshell.BindObjectToPeer(self.api.plauth, 'slice', old_record['slice_id'], peer, old_record['peer_slice_id'])