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.debug import log
9 from geni.aggregate import Aggregates
10 from geni.registry import Registries
12 class Slices(SimpleStorage):
14 def __init__(self, api, ttl = .5):
18 self.slices_file = os.sep.join([self.api.server_basedir, self.api.interface +'.'+ self.api.hrn + '.slices'])
19 SimpleStorage.__init__(self, self.slices_file)
25 Update the cached list of slices
27 # Reload components list
28 now = datetime.datetime.now()
29 if not self.has_key('threshold') or not self.has_key('timestamp') or \
30 now > datetime.datetime.fromtimestamp(time.mktime(time.strptime(self['threshold'], self.api.time_format))):
31 if self.api.interface in ['aggregate']:
32 self.refresh_slices_aggregate()
33 elif self.api.interface in ['slicemgr']:
34 self.refresh_slices_smgr()
36 def refresh_slices_aggregate(self):
37 slices = self.api.plshell.GetSlices(self.api.plauth, {}, ['name'])
38 slice_hrns = [slicename_to_hrn(self.api.hrn, slice['name']) for slice in slices]
40 # update timestamp and threshold
41 timestamp = datetime.datetime.now()
42 hr_timestamp = timestamp.strftime(self.api.time_format)
43 delta = datetime.timedelta(hours=self.ttl)
44 threshold = timestamp + delta
45 hr_threshold = threshold.strftime(self.api.time_format)
47 slice_details = {'hrn': slice_hrns,
48 'timestamp': hr_timestamp,
49 'threshold': hr_threshold
51 self.update(slice_details)
55 def refresh_slices_smgr(self):
57 aggregates = Aggregates(self.api)
58 credential = self.api.getCredential()
59 for aggregate in aggregates:
61 slices = aggregates[aggregate].slices(credential)
62 slice_hrns.extend(slices)
64 print >> log, "Error calling slices at aggregate %(aggregate)s" % locals()
65 # update timestamp and threshold
66 timestamp = datetime.datetime.now()
67 hr_timestamp = timestamp.strftime(self.api.time_format)
68 delta = datetime.timedelta(hours=self.ttl)
69 threshold = timestamp + delta
70 hr_threshold = threshold.strftime(self.api.time_format)
72 slice_details = {'hrn': slice_hrns,
73 'timestamp': hr_timestamp,
74 'threshold': hr_threshold
76 self.update(slice_details)
80 def delete_slice(self, hrn):
81 if self.api.interface in ['aggregate']:
82 self.delete_slice_aggregate(hrn)
83 elif self.api.interface in ['slicemgr']:
84 self.delete_slice_smgr(hrn)
86 def delete_slice_aggregate(self, hrn):
87 slicename = hrn_to_pl_slicename(hrn)
88 slices = self.api.plshell.GetSlices(self.api.plauth, [slicename])
93 self.api.plshell.DeleteSliceFromNodes(self.api.plauth, slicename, slice['node_ids'])
96 def delete_slice_smgr(self, hrn):
97 credential = self.api.getCredential()
98 aggregates = Aggregates(self.api)
99 for aggregate in aggregates:
100 aggregates[aggregate].delete_slice(credential, hrn)
102 def create_slice(self, hrn, rspec):
103 if self.api.interface in ['aggregate']:
104 self.create_slice_aggregate(hrn, rspec)
105 elif self.api.interface in ['slicemgr']:
106 self.create_slice_smgr(hrn, rspec)
108 def create_slice_aggregate(self, hrn, rspec):
110 # Get the slice record from geni
112 registries = Registries(self.api)
113 registry = registries[self.api.hrn]
114 credential = self.api.getCredential()
115 records = registry.resolve(credential, hrn)
116 for record in records:
117 if record.get_type() in ['slice']:
118 slice_info = record.as_dict()
119 slice = slice_info['pl_info']
121 raise RecordNotFound(slice_hrn)
123 # Make sure slice exists at plc, if it doesnt add it
124 slicename = hrn_to_pl_slicename(hrn)
125 slices = self.api.plshell.GetSlices(self.api.plauth, [slicename], ['node_ids'])
127 parts = slicename.split("_")
128 login_base = parts[0]
129 # if site doesnt exist add it
130 sites = self.api.plshell.GetSites(self.api.plauth, [login_base])
132 authority = get_authority(hrn)
133 site_records = registry.resolve(credential, authority)
136 raise RecordNotFound(authority)
137 site_record = site_records[0]
138 site_info = site_record.as_dict()
139 site = site_info['pl_info']
143 site_id = self.api.plshell.AddSite(self.api.plauth, site)
147 self.api.plshell.AddSlice(self.api.plauth, slice)
149 # get the list of valid slice users from the registry and make
150 # they are added to the slice
151 geni_info = slice_info['geni_info']
152 researchers = geni_info['researcher']
153 for researcher in researchers:
155 person_records = registry.resolve(credential, researcher)
156 for record in person_records:
157 if record.get_type() in ['user']:
158 person_record = record
159 if not person_record:
161 person_dict = person_record.as_dict()['pl_info']
162 persons = self.api.plshell.GetPersons(self.api.plauth, [person_dict['email']], ['person_id', 'key_ids'])
164 # Create the person record
166 self.api.plshell.AddPerson(self.api.plauth, person_dict)
169 key_ids = persons[0]['key_ids']
171 self.api.plshell.AddPersonToSlice(self.api.plauth, person_dict['email'], slicename)
173 # Get this users local keys
174 keylist = self.api.plshell.GetKeys(self.api.plauth, key_ids, ['key'])
175 keys = [key['key'] for key in keylist]
177 # add keys that arent already there
178 for personkey in person_dict['keys']:
179 if personkey not in keys:
180 key = {'key_type': 'ssh', 'key': personkey}
181 self.api.plshell.AddPersonKey(self.api.plauth, person_dict['email'], key)
183 # find out where this slice is currently running
184 nodelist = self.api.plshell.GetNodes(self.api.plauth, slice['node_ids'], ['hostname'])
185 hostnames = [node['hostname'] for node in nodelist]
187 # get netspec details
188 nodespecs = spec.getDictsByTagName('NodeSpec')
190 for nodespec in nodespecs:
191 if isinstance(nodespec['name'], list):
192 nodes.extend(nodespec['name'])
193 elif isinstance(nodespec['name'], StringTypes):
194 nodes.append(nodespec['name'])
196 # remove nodes not in rspec
197 deleted_nodes = list(set(hostnames).difference(nodes))
198 # add nodes from rspec
199 added_nodes = list(set(nodes).difference(hostnames))
201 self.api.plshell.AddSliceToNodes(self.api.plauth, slicename, added_nodes)
202 self.api.plshell.DeleteSliceFromNodes(self.api.plauth, slicename, deleted_nodes)
206 def create_slice_smgr(self, hrn, rspec):
209 spec.parseString(rspec)
210 slicename = hrn_to_pl_slicename(hrn)
211 specDict = spec.toDict()
212 if specDict.has_key('Rspec'): specDict = specDict['Rspec']
213 if specDict.has_key('start_time'): start_time = specDict['start_time']
215 if specDict.has_key('end_time'): end_time = specDict['end_time']
219 aggregates = Aggregates(self.api)
220 credential = self.api.getCredential()
221 # only attempt to extract information about the aggregates we know about
222 for aggregate in aggregates:
223 netspec = spec.getDictByTagNameValue('NetSpec', aggregate)
226 resources = {'start_time': start_time, 'end_time': end_time, 'networks': netspec}
227 resourceDict = {'Rspec': resources}
228 tempspec.parseDict(resourceDict)
229 rspecs[aggregate] = tempspec.toxml()
231 # notify the aggregates
232 for aggregate in rspecs.keys():
234 aggregates[aggregate].create_slice(credential, hrn, rspecs[aggregate])
236 print >> log, "Error creating slice %(hrn)% at aggregate %(aggregate)%" % locals()
241 def start_slice(self, hrn):
242 if self.api.interface in ['aggregate']:
243 self.start_slice_aggregate()
244 elif self.api.interface in ['slicemgr']:
245 self.start_slice_smgr()
247 def start_slice_aggregate(self, hrn):
248 slicename = hrn_to_pl_slicename(hrn)
249 slices = self.api.plshell.GetSlices(self.api.plauth, {'name': slicename}, ['slice_id'])
251 raise RecordNotFound(hrn)
253 attributes = self.api.plshell.GetSliceAttributes(self.api.plauth, {'slice_id': slice_id, 'name': 'enabled'}, ['slice_attribute_id'])
254 attribute_id = attreibutes[0]['slice_attribute_id']
255 self.api.plshell.UpdateSliceAttribute(self.api.plauth, attribute_id, "1" )
258 def start_slice_smgr(self, hrn):
259 credential = self.api.getCredential()
260 aggregates = Aggregates()
261 for aggregate in aggregates:
262 aggreegates[aggregate].start_slice(credential, hrn)
266 def stop_slice(self, hrn):
267 if self.api.interface in ['aggregate']:
268 self.stop_slice_aggregate()
269 elif self.api.interface in ['slicemgr']:
270 self.stop_slice_smgr()
272 def stop_slice_aggregate(self, hrn):
273 slicename = hrn_to_pl_slicename(hrn)
274 slices = self.api.plshell.GetSlices(self.api.plauth, {'name': slicename}, ['slice_id'])
276 raise RecordNotFound(hrn)
278 attributes = self.api.plshell.GetSliceAttributes(self.api.plauth, {'slice_id': slice_id, 'name': 'enabled'}, ['slice_attribute_id'])
279 attribute_id = attributes[0]['slice_attribute_id']
280 self.api.plshell.UpdateSliceAttribute(self.api.plauth, attribute_id, "0")
283 def stop_slice_smgr(self, hrn):
284 credential = self.api.getCredential()
285 aggregates = Aggregates()
286 for aggregate in aggregates:
287 aggregate[aggregate].stop_slice(credential, hrn)