6 from types import StringTypes
7 from sfa.util.xrn import get_leaf, get_authority, hrn_to_urn, urn_to_hrn
8 from sfa.util.plxrn import hrn_to_pl_slicename
9 from sfa.util.rspec import *
10 from sfa.util.specdict import *
11 from sfa.util.faults import *
12 from sfa.util.record import SfaRecord
13 from sfa.util.policy import Policy
14 from sfa.util.prefixTree import prefixTree
20 rspec_to_slice_tag = {'max_rate':'net_max_rate'}
22 def __init__(self, api, ttl = .5, origin_hrn=None):
24 #filepath = path + os.sep + filename
25 self.policy = Policy(self.api)
26 self.origin_hrn = origin_hrn
28 def get_slivers(self, xrn, node=None):
29 hrn, type = urn_to_hrn(xrn)
31 slice_name = hrn_to_pl_slicename(hrn)
32 # XX Should we just call PLCAPI.GetSliceTicket(slice_name) instead
33 # of doing all of this?
34 #return self.api.GetSliceTicket(self.auth, slice_name)
36 # from PLCAPI.GetSlivers.get_slivers()
37 slice_fields = ['slice_id', 'name', 'instantiation', 'expires', 'person_ids', 'slice_tag_ids']
38 slices = self.api.plshell.GetSlices(self.api.plauth, slice_name, slice_fields)
39 # Build up list of users and slice attributes
41 all_slice_tag_ids = set()
43 person_ids.update(slice['person_ids'])
44 all_slice_tag_ids.update(slice['slice_tag_ids'])
45 person_ids = list(person_ids)
46 all_slice_tag_ids = list(all_slice_tag_ids)
47 # Get user information
48 all_persons_list = self.api.plshell.GetPersons(self.api.plauth, {'person_id':person_ids,'enabled':True}, ['person_id', 'enabled', 'key_ids'])
50 for person in all_persons_list:
51 all_persons[person['person_id']] = person
53 # Build up list of keys
55 for person in all_persons.values():
56 key_ids.update(person['key_ids'])
57 key_ids = list(key_ids)
58 # Get user account keys
59 all_keys_list = self.api.plshell.GetKeys(self.api.plauth, key_ids, ['key_id', 'key', 'key_type'])
61 for key in all_keys_list:
62 all_keys[key['key_id']] = key
63 # Get slice attributes
64 all_slice_tags_list = self.api.plshell.GetSliceTags(self.api.plauth, all_slice_tag_ids)
66 for slice_tag in all_slice_tags_list:
67 all_slice_tags[slice_tag['slice_tag_id']] = slice_tag
72 for person_id in slice['person_ids']:
73 if person_id in all_persons:
74 person = all_persons[person_id]
75 if not person['enabled']:
77 for key_id in person['key_ids']:
78 if key_id in all_keys:
79 key = all_keys[key_id]
80 keys += [{'key_type': key['key_type'],
83 # All (per-node and global) attributes for this slice
85 for slice_tag_id in slice['slice_tag_ids']:
86 if slice_tag_id in all_slice_tags:
87 slice_tags.append(all_slice_tags[slice_tag_id])
88 # Per-node sliver attributes take precedence over global
89 # slice attributes, so set them first.
90 # Then comes nodegroup slice attributes
91 # Followed by global slice attributes
92 sliver_attributes = []
95 for sliver_attribute in filter(lambda a: a['node_id'] == node['node_id'], slice_tags):
96 sliver_attributes.append(sliver_attribute['tagname'])
97 attributes.append({'tagname': sliver_attribute['tagname'],
98 'value': sliver_attribute['value']})
100 # set nodegroup slice attributes
101 for slice_tag in filter(lambda a: a['nodegroup_id'] in node['nodegroup_ids'], slice_tags):
102 # Do not set any nodegroup slice attributes for
103 # which there is at least one sliver attribute
105 if slice_tag not in slice_tags:
106 attributes.append({'tagname': slice_tag['tagname'],
107 'value': slice_tag['value']})
109 for slice_tag in filter(lambda a: a['node_id'] is None, slice_tags):
110 # Do not set any global slice attributes for
111 # which there is at least one sliver attribute
113 if slice_tag['tagname'] not in sliver_attributes:
114 attributes.append({'tagname': slice_tag['tagname'],
115 'value': slice_tag['value']})
117 # XXX Sanity check; though technically this should be a system invariant
118 # checked with an assertion
119 if slice['expires'] > MAXINT: slice['expires']= MAXINT
123 'name': slice['name'],
124 'slice_id': slice['slice_id'],
125 'instantiation': slice['instantiation'],
126 'expires': slice['expires'],
128 'attributes': attributes
133 def get_peer(self, xrn):
134 hrn, type = urn_to_hrn(xrn)
135 # Becaues of myplc federation, we first need to determine if this
136 # slice belongs to out local plc or a myplc peer. We will assume it
137 # is a local site, unless we find out otherwise
140 # get this slice's authority (site)
141 slice_authority = get_authority(hrn)
143 # get this site's authority (sfa root authority or sub authority)
144 site_authority = get_authority(slice_authority).lower()
146 # check if we are already peered with this site_authority, if so
147 peers = self.api.plshell.GetPeers(self.api.plauth, {}, ['peer_id', 'peername', 'shortname', 'hrn_root'])
148 for peer_record in peers:
149 names = [name.lower() for name in peer_record.values() if isinstance(name, StringTypes)]
150 if site_authority in names:
151 peer = peer_record['shortname']
155 def get_sfa_peer(self, xrn):
156 hrn, type = urn_to_hrn(xrn)
158 # return the authority for this hrn or None if we are the authority
160 slice_authority = get_authority(hrn)
161 site_authority = get_authority(slice_authority)
163 if site_authority != self.api.hrn:
164 sfa_peer = site_authority
168 def verify_site(self, registry, credential, slice_hrn, peer, sfa_peer, reg_objects=None):
169 authority = get_authority(slice_hrn)
170 authority_urn = hrn_to_urn(authority, 'authority')
173 site = reg_objects['site']
174 login_base = site['login_base']
176 site_records = registry.Resolve(authority_urn, [credential])
178 for site_record in site_records:
179 if site_record['type'] == 'authority':
182 raise RecordNotFound(authority)
184 remote_site_id = site.pop('site_id')
186 if login_base is None:
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 # exempt federated sites from monitor policies
204 self.api.plshell.AddSiteTag(site_id, 'exempt_site_until', "20200101")
207 site_id = sites[0]['site_id']
208 remote_site_id = sites[0]['peer_site_id']
210 #the site is already on the remote agg. Let us update(e.g. max_slices field) it with the latest info.
211 self.sync_site(old_site, site, peer)
214 return (site_id, remote_site_id)
216 def verify_slice(self, registry, credential, slice_hrn, site_id, remote_site_id, peer, sfa_peer, reg_objects=None):
219 authority = get_authority(slice_hrn)
222 slice_record = reg_objects['slice_record']
224 slice_records = registry.Resolve(slice_hrn, [credential])
226 for record in slice_records:
227 if record['type'] in ['slice']:
228 slice_record = record
230 raise RecordNotFound(hrn)
233 slicename = hrn_to_pl_slicename(slice_hrn)
234 parts = slicename.split("_")
235 login_base = parts[0]
236 slices = self.api.plshell.GetSlices(self.api.plauth, [slicename])
239 slice_keys = ['name', 'url', 'description']
240 for key in slice_keys:
241 if key in slice_record and slice_record[key]:
242 slice_fields[key] = slice_record[key]
244 slice_id = self.api.plshell.AddSlice(self.api.plauth, slice_fields)
246 slice['slice_id'] = slice_id
248 # mark this slice as an sfa peer record
250 peer_dict = {'type': 'slice', 'hrn': slice_hrn, 'peer_authority': sfa_peer, 'pointer': slice_id}
251 registry.register_peer_object(credential, peer_dict)
253 #this belongs to a peer
256 self.api.plshell.BindObjectToPeer(self.api.plauth, 'slice', slice_id, peer, slice_record['pointer'])
258 self.api.plshell.DeleteSlice(self.api.plauth,slice_id)
260 slice['node_ids'] = []
263 slice_id = slice['slice_id']
264 site_id = slice['site_id']
265 #the slice is alredy on the remote agg. Let us update(e.g. expires field) it with the latest info.
266 self.sync_slice(slice, slice_record, peer)
268 slice['peer_slice_id'] = slice_record['pointer']
269 self.verify_persons(registry, credential, slice_record, site_id, remote_site_id, peer, sfa_peer, reg_objects)
273 def verify_persons(self, registry, credential, slice_record, site_id, remote_site_id, peer, sfa_peer, reg_objects=None):
274 # get the list of valid slice users from the registry and make
275 # sure they are added to the slice
276 slicename = hrn_to_pl_slicename(slice_record['hrn'])
278 researchers = reg_objects['users'].keys()
280 researchers = slice_record.get('researcher', [])
281 for researcher in researchers:
283 person_dict = reg_objects['users'][researcher]
285 person_records = registry.Resolve(researcher, [credential])
286 for record in person_records:
287 if record['type'] in ['user'] and record['enabled']:
288 person_record = record
289 if not person_record:
291 person_dict = person_record
295 peer_id = self.api.plshell.GetPeers(self.api.plauth, {'shortname': peer}, ['peer_id'])[0]['peer_id']
296 persons = self.api.plshell.GetPersons(self.api.plauth, {'email': [person_dict['email']], 'peer_id': peer_id}, ['person_id', 'key_ids'])
298 persons = self.api.plshell.GetPersons(self.api.plauth, [person_dict['email']], ['person_id', 'key_ids'])
303 persons = self.api.plshell.GetPersons(self.api.plauth, [person_dict['email']], ['person_id', 'key_ids'])
306 person_id=self.api.plshell.AddPerson(self.api.plauth, person_dict)
307 self.api.plshell.UpdatePerson(self.api.plauth, person_id, {'enabled' : True})
309 # mark this person as an sfa peer record
311 peer_dict = {'type': 'user', 'hrn': researcher, 'peer_authority': sfa_peer, 'pointer': person_id}
312 registry.register_peer_object(credential, peer_dict)
316 self.api.plshell.BindObjectToPeer(self.api.plauth, 'person', person_id, peer, person_dict['pointer'])
318 self.api.plshell.DeletePerson(self.api.plauth,person_id)
322 person_id = persons[0]['person_id']
323 key_ids = persons[0]['key_ids']
326 # if this is a peer person, we must unbind them from the peer or PLCAPI will throw
329 if peer and not local_person:
330 self.api.plshell.UnBindObjectFromPeer(self.api.plauth, 'person', person_id, peer)
332 self.api.plshell.UnBindObjectFromPeer(self.api.plauth, 'site', site_id, peer)
334 self.api.plshell.AddPersonToSlice(self.api.plauth, person_dict['email'], slicename)
335 self.api.plshell.AddPersonToSite(self.api.plauth, person_dict['email'], site_id)
338 try: self.api.plshell.BindObjectToPeer(self.api.plauth, 'site', site_id, peer, remote_site_id)
340 if peer and not local_person:
341 try: self.api.plshell.BindObjectToPeer(self.api.plauth, 'person', person_id, peer, person_dict['pointer'])
344 self.verify_keys(registry, credential, person_dict, key_ids, person_id, peer, local_person)
346 def verify_keys(self, registry, credential, person_dict, key_ids, person_id, peer, local_person):
347 keylist = self.api.plshell.GetKeys(self.api.plauth, key_ids, ['key'])
348 keys = [key['key'] for key in keylist]
350 #add keys that arent already there
351 key_ids = person_dict['key_ids']
352 for personkey in person_dict['keys']:
353 if personkey not in keys:
354 key = {'key_type': 'ssh', 'key': personkey}
357 self.api.plshell.UnBindObjectFromPeer(self.api.plauth, 'person', person_id, peer)
358 key_id = self.api.plshell.AddPersonKey(self.api.plauth, person_dict['email'], key)
360 if peer and not local_person:
361 self.api.plshell.BindObjectToPeer(self.api.plauth, 'person', person_id, peer, person_dict['pointer'])
363 # xxx - thierry how are we getting the peer_key_id in here ?
364 try: self.api.plshell.BindObjectToPeer(self.api.plauth, 'key', key_id, peer, key_ids.pop(0))
367 def create_slice_aggregate(self, xrn, rspec):
368 hrn, type = urn_to_hrn(xrn)
369 # Determine if this is a peer slice
370 peer = self.get_peer(hrn)
371 sfa_peer = self.get_sfa_peer(hrn)
374 # Get the slice record from sfa
375 slicename = hrn_to_pl_slicename(hrn)
378 registry = self.api.registries[self.api.hrn]
379 credential = self.api.getCredential()
381 site_id, remote_site_id = self.verify_site(registry, credential, hrn, peer, sfa_peer)
382 slice = self.verify_slice(registry, credential, hrn, site_id, remote_site_id, peer, sfa_peer)
384 # find out where this slice is currently running
385 nodelist = self.api.plshell.GetNodes(self.api.plauth, slice['node_ids'], ['hostname'])
386 hostnames = [node['hostname'] for node in nodelist]
388 # get netspec details
389 nodespecs = spec.getDictsByTagName('NodeSpec')
391 # dict in which to store slice attributes to set for the nodes
393 for nodespec in nodespecs:
394 if isinstance(nodespec['name'], list):
395 for nodename in nodespec['name']:
397 for k in nodespec.keys():
398 rspec_attribute_value = nodespec[k]
399 if (self.rspec_to_slice_tag.has_key(k)):
400 slice_tag_name = self.rspec_to_slice_tag[k]
401 nodes[nodename][slice_tag_name] = rspec_attribute_value
402 elif isinstance(nodespec['name'], StringTypes):
403 nodename = nodespec['name']
405 for k in nodespec.keys():
406 rspec_attribute_value = nodespec[k]
407 if (self.rspec_to_slice_tag.has_key(k)):
408 slice_tag_name = self.rspec_to_slice_tag[k]
409 nodes[nodename][slice_tag_name] = rspec_attribute_value
411 for k in nodespec.keys():
412 rspec_attribute_value = nodespec[k]
413 if (self.rspec_to_slice_tag.has_key(k)):
414 slice_tag_name = self.rspec_to_slice_tag[k]
415 nodes[nodename][slice_tag_name] = rspec_attribute_value
417 node_names = nodes.keys()
418 # remove nodes not in rspec
419 deleted_nodes = list(set(hostnames).difference(node_names))
420 # add nodes from rspec
421 added_nodes = list(set(node_names).difference(hostnames))
425 self.api.plshell.UnBindObjectFromPeer(self.api.plauth, 'slice', slice['slice_id'], peer)
427 self.api.plshell.AddSliceToNodes(self.api.plauth, slicename, added_nodes)
429 # Add recognized slice tags
430 for node_name in node_names:
431 node = nodes[node_name]
432 for slice_tag in node.keys():
433 value = node[slice_tag]
434 if (isinstance(value, list)):
437 self.api.plshell.AddSliceTag(self.api.plauth, slicename, slice_tag, value, node_name)
439 self.api.plshell.DeleteSliceFromNodes(self.api.plauth, slicename, deleted_nodes)
442 self.api.plshell.BindObjectToPeer(self.api.plauth, 'slice', slice['slice_id'], peer, slice['peer_slice_id'])
446 def sync_site(self, old_record, new_record, peer):
447 if old_record['max_slices'] != new_record['max_slices'] or old_record['max_slivers'] != new_record['max_slivers']:
450 self.api.plshell.UnBindObjectFromPeer(self.api.plauth, 'site', old_record['site_id'], peer)
451 if old_record['max_slices'] != new_record['max_slices']:
452 self.api.plshell.UpdateSite(self.api.plauth, old_record['site_id'], {'max_slices' : new_record['max_slices']})
453 if old_record['max_slivers'] != new_record['max_slivers']:
454 self.api.plshell.UpdateSite(self.api.plauth, old_record['site_id'], {'max_slivers' : new_record['max_slivers']})
457 self.api.plshell.BindObjectToPeer(self.api.plauth, 'site', old_record['site_id'], peer, old_record['peer_site_id'])
460 def sync_slice(self, old_record, new_record, peer):
461 if old_record['expires'] != new_record['expires']:
464 self.api.plshell.UnBindObjectFromPeer(self.api.plauth, 'slice', old_record['slice_id'], peer)
465 self.api.plshell.UpdateSlice(self.api.plauth, old_record['slice_id'], {'expires' : new_record['expires']})
468 self.api.plshell.BindObjectToPeer(self.api.plauth, 'slice', old_record['slice_id'], peer, old_record['peer_slice_id'])