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 self.slices_file = os.sep.join([self.api.server_basedir, self.api.interface +'.'+ self.api.hrn + '.slices'])
20 SimpleStorage.__init__(self, self.slices_file)
21 self.policy = Policy(self.api)
27 Update the cached list of slices
29 # Reload components list
30 now = datetime.datetime.now()
31 if not self.has_key('threshold') or not self.has_key('timestamp') or \
32 now > datetime.datetime.fromtimestamp(time.mktime(time.strptime(self['threshold'], self.api.time_format))):
33 if self.api.interface in ['aggregate']:
34 self.refresh_slices_aggregate()
35 elif self.api.interface in ['slicemgr']:
36 self.refresh_slices_smgr()
38 def refresh_slices_aggregate(self):
39 slices = self.api.plshell.GetSlices(self.api.plauth, {}, ['name'])
40 slice_hrns = [slicename_to_hrn(self.api.hrn, slice['name']) for slice in slices]
42 # update timestamp and threshold
43 timestamp = datetime.datetime.now()
44 hr_timestamp = timestamp.strftime(self.api.time_format)
45 delta = datetime.timedelta(hours=self.ttl)
46 threshold = timestamp + delta
47 hr_threshold = threshold.strftime(self.api.time_format)
49 slice_details = {'hrn': slice_hrns,
50 'timestamp': hr_timestamp,
51 'threshold': hr_threshold
53 self.update(slice_details)
57 def refresh_slices_smgr(self):
59 aggregates = Aggregates(self.api)
60 credential = self.api.getCredential()
61 for aggregate in aggregates:
63 slices = aggregates[aggregate].get_slices(credential)
64 slice_hrns.extend(slices)
66 print >> log, "Error calling slices at aggregate %(aggregate)s" % locals()
67 # update timestamp and threshold
68 timestamp = datetime.datetime.now()
69 hr_timestamp = timestamp.strftime(self.api.time_format)
70 delta = datetime.timedelta(hours=self.ttl)
71 threshold = timestamp + delta
72 hr_threshold = threshold.strftime(self.api.time_format)
74 slice_details = {'hrn': slice_hrns,
75 'timestamp': hr_timestamp,
76 'threshold': hr_threshold
78 self.update(slice_details)
82 def delete_slice(self, hrn):
83 if self.api.interface in ['aggregate']:
84 self.delete_slice_aggregate(hrn)
85 elif self.api.interface in ['slicemgr']:
86 self.delete_slice_smgr(hrn)
88 def delete_slice_aggregate(self, hrn):
89 slicename = hrn_to_pl_slicename(hrn)
90 slices = self.api.plshell.GetSlices(self.api.plauth, [slicename])
95 self.api.plshell.DeleteSliceFromNodes(self.api.plauth, slicename, slice['node_ids'])
98 def delete_slice_smgr(self, hrn):
99 credential = self.api.getCredential()
100 aggregates = Aggregates(self.api)
101 for aggregate in aggregates:
102 aggregates[aggregate].delete_slice(credential, hrn)
104 def create_slice(self, hrn, rspec):
105 # check our slice policy before we procede
106 whitelist = self.policy['slice_whitelist']
107 blacklist = self.policy['slice_blacklist']
109 if whitelist and hrn not in whitelist or \
110 blacklist and hrn in blacklist:
111 policy_file = self.policy.policy_file
112 print >> log, "Slice %(hrn)s not allowed by policy %(policy_file)s" % locals()
114 if self.api.interface in ['aggregate']:
115 self.create_slice_aggregate(hrn, rspec)
116 elif self.api.interface in ['slicemgr']:
117 self.create_slice_smgr(hrn, rspec)
119 def create_slice_aggregate(self, hrn, rspec):
121 # Get the slice record from geni
123 registries = Registries(self.api)
124 registry = registries[self.api.hrn]
125 credential = self.api.getCredential()
126 records = registry.resolve(credential, hrn)
127 for record in records:
128 if record.get_type() in ['slice']:
129 slice_info = record.as_dict()
130 slice = slice_info['pl_info']
132 raise RecordNotFound(slice_hrn)
134 # Make sure slice exists at plc, if it doesnt add it
135 slicename = hrn_to_pl_slicename(hrn)
136 slices = self.api.plshell.GetSlices(self.api.plauth, [slicename], ['node_ids'])
138 parts = slicename.split("_")
139 login_base = parts[0]
140 # if site doesnt exist add it
141 sites = self.api.plshell.GetSites(self.api.plauth, [login_base])
143 authority = get_authority(hrn)
144 site_records = registry.resolve(credential, authority)
147 raise RecordNotFound(authority)
148 site_record = site_records[0]
149 site_info = site_record.as_dict()
150 site = site_info['pl_info']
154 site_id = self.api.plshell.AddSite(self.api.plauth, site)
158 self.api.plshell.AddSlice(self.api.plauth, slice)
160 # get the list of valid slice users from the registry and make
161 # they are added to the slice
162 geni_info = slice_info['geni_info']
163 researchers = geni_info['researcher']
164 for researcher in researchers:
166 person_records = registry.resolve(credential, researcher)
167 for record in person_records:
168 if record.get_type() in ['user']:
169 person_record = record
170 if not person_record:
172 person_dict = person_record.as_dict()['pl_info']
173 persons = self.api.plshell.GetPersons(self.api.plauth, [person_dict['email']], ['person_id', 'key_ids'])
175 # Create the person record
177 self.api.plshell.AddPerson(self.api.plauth, person_dict)
180 key_ids = persons[0]['key_ids']
182 self.api.plshell.AddPersonToSlice(self.api.plauth, person_dict['email'], slicename)
184 # Get this users local keys
185 keylist = self.api.plshell.GetKeys(self.api.plauth, key_ids, ['key'])
186 keys = [key['key'] for key in keylist]
188 # add keys that arent already there
189 for personkey in person_dict['keys']:
190 if personkey not in keys:
191 key = {'key_type': 'ssh', 'key': personkey}
192 self.api.plshell.AddPersonKey(self.api.plauth, person_dict['email'], key)
194 # find out where this slice is currently running
195 nodelist = self.api.plshell.GetNodes(self.api.plauth, slice['node_ids'], ['hostname'])
196 hostnames = [node['hostname'] for node in nodelist]
198 # get netspec details
199 nodespecs = spec.getDictsByTagName('NodeSpec')
201 for nodespec in nodespecs:
202 if isinstance(nodespec['name'], list):
203 nodes.extend(nodespec['name'])
204 elif isinstance(nodespec['name'], StringTypes):
205 nodes.append(nodespec['name'])
207 # remove nodes not in rspec
208 deleted_nodes = list(set(hostnames).difference(nodes))
209 # add nodes from rspec
210 added_nodes = list(set(nodes).difference(hostnames))
212 self.api.plshell.AddSliceToNodes(self.api.plauth, slicename, added_nodes)
213 self.api.plshell.DeleteSliceFromNodes(self.api.plauth, slicename, deleted_nodes)
217 def create_slice_smgr(self, hrn, rspec):
220 spec.parseString(rspec)
221 slicename = hrn_to_pl_slicename(hrn)
222 specDict = spec.toDict()
223 if specDict.has_key('Rspec'): specDict = specDict['Rspec']
224 if specDict.has_key('start_time'): start_time = specDict['start_time']
226 if specDict.has_key('end_time'): end_time = specDict['end_time']
230 aggregates = Aggregates(self.api)
231 credential = self.api.getCredential()
232 # only attempt to extract information about the aggregates we know about
233 for aggregate in aggregates:
234 netspec = spec.getDictByTagNameValue('NetSpec', aggregate)
237 resources = {'start_time': start_time, 'end_time': end_time, 'networks': netspec}
238 resourceDict = {'Rspec': resources}
239 tempspec.parseDict(resourceDict)
240 rspecs[aggregate] = tempspec.toxml()
242 # notify the aggregates
243 for aggregate in rspecs.keys():
245 aggregates[aggregate].create_slice(credential, hrn, rspecs[aggregate])
247 print >> log, "Error creating slice %(hrn)% at aggregate %(aggregate)%" % locals()
252 def start_slice(self, hrn):
253 if self.api.interface in ['aggregate']:
254 self.start_slice_aggregate()
255 elif self.api.interface in ['slicemgr']:
256 self.start_slice_smgr()
258 def start_slice_aggregate(self, hrn):
259 slicename = hrn_to_pl_slicename(hrn)
260 slices = self.api.plshell.GetSlices(self.api.plauth, {'name': slicename}, ['slice_id'])
262 raise RecordNotFound(hrn)
264 attributes = self.api.plshell.GetSliceAttributes(self.api.plauth, {'slice_id': slice_id, 'name': 'enabled'}, ['slice_attribute_id'])
265 attribute_id = attreibutes[0]['slice_attribute_id']
266 self.api.plshell.UpdateSliceAttribute(self.api.plauth, attribute_id, "1" )
269 def start_slice_smgr(self, hrn):
270 credential = self.api.getCredential()
271 aggregates = Aggregates()
272 for aggregate in aggregates:
273 aggreegates[aggregate].start_slice(credential, hrn)
277 def stop_slice(self, hrn):
278 if self.api.interface in ['aggregate']:
279 self.stop_slice_aggregate()
280 elif self.api.interface in ['slicemgr']:
281 self.stop_slice_smgr()
283 def stop_slice_aggregate(self, hrn):
284 slicename = hrn_to_pl_slicename(hrn)
285 slices = self.api.plshell.GetSlices(self.api.plauth, {'name': slicename}, ['slice_id'])
287 raise RecordNotFound(hrn)
289 attributes = self.api.plshell.GetSliceAttributes(self.api.plauth, {'slice_id': slice_id, 'name': 'enabled'}, ['slice_attribute_id'])
290 attribute_id = attributes[0]['slice_attribute_id']
291 self.api.plshell.UpdateSliceAttribute(self.api.plauth, attribute_id, "0")
294 def stop_slice_smgr(self, hrn):
295 credential = self.api.getCredential()
296 aggregates = Aggregates()
297 for aggregate in aggregates:
298 aggregate[aggregate].stop_slice(credential, hrn)