3 from geni.util.misc import *
4 from geni.util.rspec import *
5 from geni.util.specdict import *
6 from geni.util.excep import *
7 from geni.util.storage import *
8 from geni.util.policy import Policy
9 from geni.util.debug import log
10 from geni.aggregate import Aggregates
11 from geni.registry import Registries
13 class Slices(SimpleStorage):
15 def __init__(self, api, ttl = .5):
19 path = self.api.config.basepath
20 filename = ".".join([self.api.interface, self.api.hrn, "slices"])
21 filepath = path + os.sep + filename
22 self.slices_file = filepath
23 SimpleStorage.__init__(self, self.slices_file)
24 self.policy = Policy(self.api)
30 Update the cached list of slices
32 # Reload components list
33 now = datetime.datetime.now()
34 if not self.has_key('threshold') or not self.has_key('timestamp') or \
35 now > datetime.datetime.fromtimestamp(time.mktime(time.strptime(self['threshold'], self.api.time_format))):
36 if self.api.interface in ['aggregate']:
37 self.refresh_slices_aggregate()
38 elif self.api.interface in ['slicemgr']:
39 self.refresh_slices_smgr()
41 def refresh_slices_aggregate(self):
42 slices = self.api.plshell.GetSlices(self.api.plauth, {'peer_id': None}, ['name'])
43 slice_hrns = [slicename_to_hrn(self.api.hrn, slice['name']) for slice in slices]
45 # update timestamp and threshold
46 timestamp = datetime.datetime.now()
47 hr_timestamp = timestamp.strftime(self.api.time_format)
48 delta = datetime.timedelta(hours=self.ttl)
49 threshold = timestamp + delta
50 hr_threshold = threshold.strftime(self.api.time_format)
52 slice_details = {'hrn': slice_hrns,
53 'timestamp': hr_timestamp,
54 'threshold': hr_threshold
56 self.update(slice_details)
60 def refresh_slices_smgr(self):
62 aggregates = Aggregates(self.api)
63 credential = self.api.getCredential()
64 for aggregate in aggregates:
66 slices = aggregates[aggregate].get_slices(credential)
67 slice_hrns.extend(slices)
69 print >> log, "Error calling slices at aggregate %(aggregate)s" % locals()
70 # update timestamp and threshold
71 timestamp = datetime.datetime.now()
72 hr_timestamp = timestamp.strftime(self.api.time_format)
73 delta = datetime.timedelta(hours=self.ttl)
74 threshold = timestamp + delta
75 hr_threshold = threshold.strftime(self.api.time_format)
77 slice_details = {'hrn': slice_hrns,
78 'timestamp': hr_timestamp,
79 'threshold': hr_threshold
81 self.update(slice_details)
85 def delete_slice(self, hrn):
86 if self.api.interface in ['aggregate']:
87 self.delete_slice_aggregate(hrn)
88 elif self.api.interface in ['slicemgr']:
89 self.delete_slice_smgr(hrn)
91 def delete_slice_aggregate(self, hrn):
92 slicename = hrn_to_pl_slicename(hrn)
93 slices = self.api.plshell.GetSlices(self.api.plauth, {'peer_id': None, 'name': slicename})
98 self.api.plshell.DeleteSliceFromNodes(self.api.plauth, slicename, slice['node_ids'])
101 def delete_slice_smgr(self, hrn):
102 credential = self.api.getCredential()
103 aggregates = Aggregates(self.api)
104 for aggregate in aggregates:
106 aggregates[aggregate].delete_slice(credential, hrn)
108 def create_slice(self, hrn, rspec):
109 # check our slice policy before we procede
110 whitelist = self.policy['slice_whitelist']
111 blacklist = self.policy['slice_blacklist']
113 if whitelist and hrn not in whitelist or \
114 blacklist and hrn in blacklist:
115 policy_file = self.policy.policy_file
116 print >> log, "Slice %(hrn)s not allowed by policy %(policy_file)s" % locals()
118 if self.api.interface in ['aggregate']:
119 self.create_slice_aggregate(hrn, rspec)
120 elif self.api.interface in ['slicemgr']:
121 self.create_slice_smgr(hrn, rspec)
123 def create_slice_aggregate(self, hrn, rspec):
125 # Get the slice record from geni
127 registries = Registries(self.api)
128 registry = registries[self.api.hrn]
129 credential = self.api.getCredential()
130 records = registry.resolve(credential, hrn)
131 for record in records:
132 if record.get_type() in ['slice']:
133 slice = record.as_dict()
135 raise RecordNotFound(slice_hrn)
137 # Make sure slice exists at plc, if it doesnt add it
138 slicename = hrn_to_pl_slicename(hrn)
139 slices = self.api.plshell.GetSlices(self.api.plauth, [slicename], ['node_ids'])
141 parts = slicename.split("_")
142 login_base = parts[0]
143 # if site doesnt exist add it
144 sites = self.api.plshell.GetSites(self.api.plauth, [login_base])
146 authority = get_authority(hrn)
147 site_records = registry.resolve(credential, authority)
150 raise RecordNotFound(authority)
151 site_record = site_records[0]
152 site = site_record.as_dict()
156 site_id = self.api.plshell.AddSite(self.api.plauth, site)
160 self.api.plshell.AddSlice(self.api.plauth, slice)
162 # get the list of valid slice users from the registry and make
163 # they are added to the slice
164 researchers = slice.get('researcher', [])
165 for researcher in researchers:
167 person_records = registry.resolve(credential, researcher)
168 for record in person_records:
169 if record.get_type() in ['user']:
170 person_record = record
171 if not person_record:
173 person_dict = person_record.as_dict()
174 persons = self.api.plshell.GetPersons(self.api.plauth, [person_dict['email']], ['person_id', 'key_ids'])
176 # Create the person record
178 self.api.plshell.AddPerson(self.api.plauth, person_dict)
181 key_ids = persons[0]['key_ids']
183 self.api.plshell.AddPersonToSlice(self.api.plauth, person_dict['email'], slicename)
185 # Get this users local keys
186 keylist = self.api.plshell.GetKeys(self.api.plauth, key_ids, ['key'])
187 keys = [key['key'] for key in keylist]
189 # add keys that arent already there
190 for personkey in person_dict['keys']:
191 if personkey not in keys:
192 key = {'key_type': 'ssh', 'key': personkey}
193 self.api.plshell.AddPersonKey(self.api.plauth, person_dict['email'], key)
195 # find out where this slice is currently running
196 nodelist = self.api.plshell.GetNodes(self.api.plauth, slice['node_ids'], ['hostname'])
197 hostnames = [node['hostname'] for node in nodelist]
199 # get netspec details
200 nodespecs = spec.getDictsByTagName('NodeSpec')
202 for nodespec in nodespecs:
203 if isinstance(nodespec['name'], list):
204 nodes.extend(nodespec['name'])
205 elif isinstance(nodespec['name'], StringTypes):
206 nodes.append(nodespec['name'])
208 # remove nodes not in rspec
209 deleted_nodes = list(set(hostnames).difference(nodes))
210 # add nodes from rspec
211 added_nodes = list(set(nodes).difference(hostnames))
213 self.api.plshell.AddSliceToNodes(self.api.plauth, slicename, added_nodes)
214 self.api.plshell.DeleteSliceFromNodes(self.api.plauth, slicename, deleted_nodes)
218 def create_slice_smgr(self, hrn, rspec):
221 spec.parseString(rspec)
222 slicename = hrn_to_pl_slicename(hrn)
223 specDict = spec.toDict()
224 if specDict.has_key('Rspec'): specDict = specDict['Rspec']
225 if specDict.has_key('start_time'): start_time = specDict['start_time']
227 if specDict.has_key('end_time'): end_time = specDict['end_time']
231 aggregates = Aggregates(self.api)
232 credential = self.api.getCredential()
233 # only attempt to extract information about the aggregates we know about
234 for aggregate in aggregates:
235 netspec = spec.getDictByTagNameValue('NetSpec', aggregate)
238 resources = {'start_time': start_time, 'end_time': end_time, 'networks': netspec}
239 resourceDict = {'Rspec': resources}
240 tempspec.parseDict(resourceDict)
241 rspecs[aggregate] = tempspec.toxml()
243 # notify the aggregates
244 for aggregate in rspecs.keys():
246 aggregates[aggregate].create_slice(credential, hrn, rspecs[aggregate])
248 print >> log, "Error creating slice %(hrn)% at aggregate %(aggregate)%" % locals()
253 def start_slice(self, hrn):
254 if self.api.interface in ['aggregate']:
255 self.start_slice_aggregate(hrn)
256 elif self.api.interface in ['slicemgr']:
257 self.start_slice_smgr(hrn)
259 def start_slice_aggregate(self, hrn):
260 slicename = hrn_to_pl_slicename(hrn)
261 slices = self.api.plshell.GetSlices(self.api.plauth, {'name': slicename}, ['slice_id'])
263 raise RecordNotFound(hrn)
265 attributes = self.api.plshell.GetSliceAttributes(self.api.plauth, {'slice_id': slice_id, 'name': 'enabled'}, ['slice_attribute_id'])
266 attribute_id = attreibutes[0]['slice_attribute_id']
267 self.api.plshell.UpdateSliceAttribute(self.api.plauth, attribute_id, "1" )
270 def start_slice_smgr(self, hrn):
271 credential = self.api.getCredential()
272 aggregates = Aggregates(self.api)
273 for aggregate in aggregates:
274 aggregates[aggregate].start_slice(credential, hrn)
278 def stop_slice(self, hrn):
279 if self.api.interface in ['aggregate']:
280 self.stop_slice_aggregate(hrn)
281 elif self.api.interface in ['slicemgr']:
282 self.stop_slice_smgr(hrn)
284 def stop_slice_aggregate(self, hrn):
285 slicename = hrn_to_pl_slicename(hrn)
286 slices = self.api.plshell.GetSlices(self.api.plauth, {'name': slicename}, ['slice_id'])
288 raise RecordNotFound(hrn)
289 slice_id = slices[0]['slice_id']
290 attributes = self.api.plshell.GetSliceAttributes(self.api.plauth, {'slice_id': slice_id, 'name': 'enabled'}, ['slice_attribute_id'])
291 attribute_id = attributes[0]['slice_attribute_id']
292 self.api.plshell.UpdateSliceAttribute(self.api.plauth, attribute_id, "0")
295 def stop_slice_smgr(self, hrn):
296 credential = self.api.getCredential()
297 aggregates = Aggregates(self.api)
298 for aggregate in aggregates:
299 aggregates[aggregate].stop_slice(credential, hrn)