+++ /dev/null
-### $Id$
-### $URL$
-
-import datetime
-import time
-
-from sfa.util.misc import *
-from sfa.util.rspec import *
-from sfa.util.specdict import *
-from sfa.util.faults import *
-from sfa.util.storage import *
-from sfa.util.policy import Policy
-from sfa.util.debug import log
-from sfa.server.aggregate import Aggregates
-from sfa.server.registry import Registries
-
-class Slices(SimpleStorage):
-
- def __init__(self, api, ttl = .5):
- self.api = api
- self.ttl = ttl
- self.threshold = None
- path = self.api.config.config_path
- filename = ".".join([self.api.interface, self.api.hrn, "slices"])
- filepath = path + os.sep + filename
- self.slices_file = filepath
- SimpleStorage.__init__(self, self.slices_file)
- self.policy = Policy(self.api)
- self.load()
-
-
- def refresh(self):
- """
- Update the cached list of slices
- """
- # Reload components list
- now = datetime.datetime.now()
- if not self.has_key('threshold') or not self.has_key('timestamp') or \
- now > datetime.datetime.fromtimestamp(time.mktime(time.strptime(self['threshold'], self.api.time_format))):
- if self.api.interface in ['aggregate']:
- self.refresh_slices_aggregate()
- elif self.api.interface in ['slicemgr']:
- self.refresh_slices_smgr()
-
- def refresh_slices_aggregate(self):
- slices = self.api.plshell.GetSlices(self.api.plauth, {'peer_id': None}, ['name'])
- slice_hrns = [slicename_to_hrn(self.api.hrn, slice['name']) for slice in slices]
-
- # update timestamp and threshold
- timestamp = datetime.datetime.now()
- hr_timestamp = timestamp.strftime(self.api.time_format)
- delta = datetime.timedelta(hours=self.ttl)
- threshold = timestamp + delta
- hr_threshold = threshold.strftime(self.api.time_format)
-
- slice_details = {'hrn': slice_hrns,
- 'timestamp': hr_timestamp,
- 'threshold': hr_threshold
- }
- self.update(slice_details)
- self.write()
-
-
- def refresh_slices_smgr(self):
- slice_hrns = []
- aggregates = Aggregates(self.api)
- credential = self.api.getCredential()
- for aggregate in aggregates:
- try:
- slices = aggregates[aggregate].get_slices(credential)
- slice_hrns.extend(slices)
- except:
- print >> log, "Error calling slices at aggregate %(aggregate)s" % locals()
- # update timestamp and threshold
- timestamp = datetime.datetime.now()
- hr_timestamp = timestamp.strftime(self.api.time_format)
- delta = datetime.timedelta(hours=self.ttl)
- threshold = timestamp + delta
- hr_threshold = threshold.strftime(self.api.time_format)
-
- slice_details = {'hrn': slice_hrns,
- 'timestamp': hr_timestamp,
- 'threshold': hr_threshold
- }
- self.update(slice_details)
- self.write()
-
-
- def delete_slice(self, hrn):
- if self.api.interface in ['aggregate']:
- self.delete_slice_aggregate(hrn)
- elif self.api.interface in ['slicemgr']:
- self.delete_slice_smgr(hrn)
-
- def delete_slice_aggregate(self, hrn):
- slicename = hrn_to_pl_slicename(hrn)
- slices = self.api.plshell.GetSlices(self.api.plauth, {'peer_id': None, 'name': slicename})
- if not slices:
- return 1
- slice = slices[0]
-
- self.api.plshell.DeleteSliceFromNodes(self.api.plauth, slicename, slice['node_ids'])
- return 1
-
- def delete_slice_smgr(self, hrn):
- credential = self.api.getCredential()
- aggregates = Aggregates(self.api)
- for aggregate in aggregates:
- aggregates[aggregate].delete_slice(credential, hrn)
-
- def create_slice(self, hrn, rspec):
- # check our slice policy before we procede
- whitelist = self.policy['slice_whitelist']
- blacklist = self.policy['slice_blacklist']
-
- if whitelist and hrn not in whitelist or \
- blacklist and hrn in blacklist:
- policy_file = self.policy.policy_file
- print >> log, "Slice %(hrn)s not allowed by policy %(policy_file)s" % locals()
- return 1
- if self.api.interface in ['aggregate']:
- self.create_slice_aggregate(hrn, rspec)
- elif self.api.interface in ['slicemgr']:
- self.create_slice_smgr(hrn, rspec)
-
- def create_slice_aggregate(self, hrn, rspec):
- spec = Rspec(rspec)
- # Get the slice record from geni
- slice = {}
- registries = Registries(self.api)
- registry = registries[self.api.hrn]
- credential = self.api.getCredential()
- records = registry.resolve(credential, hrn)
- for record in records:
- if record.get_type() in ['slice']:
- slice = record.as_dict()
- if not slice:
- raise RecordNotFound(hrn)
-
- # Make sure slice exists at plc, if it doesnt add it
- slicename = hrn_to_pl_slicename(hrn)
- slices = self.api.plshell.GetSlices(self.api.plauth, [slicename], ['node_ids'])
- if not slices:
- parts = slicename.split("_")
- login_base = parts[0]
- # if site doesnt exist add it
- sites = self.api.plshell.GetSites(self.api.plauth, [login_base])
- if not sites:
- authority = get_authority(hrn)
- site_records = registry.resolve(credential, authority)
- site_record = {}
- if not site_records:
- raise RecordNotFound(authority)
- site_record = site_records[0]
- site = site_record.as_dict()
-
- # add the site
- site.pop('site_id')
- site_id = self.api.plshell.AddSite(self.api.plauth, site)
- else:
- site = sites[0]
-
- slice_fields = {}
- slice_keys = ['name', 'url', 'description']
- for key in slice_keys:
- if key in slice and slice[key]:
- slice_fields[key] = slice[key]
- self.api.plshell.AddSlice(self.api.plauth, slice_fields)
- slice = slice_fields
- slice['node_ids'] = 0
- else:
- slice = slices[0]
- # get the list of valid slice users from the registry and make
- # they are added to the slice
- researchers = record.get('researcher', [])
- for researcher in researchers:
- person_record = {}
- person_records = registry.resolve(credential, researcher)
- for record in person_records:
- if record.get_type() in ['user']:
- person_record = record
- if not person_record:
- pass
- person_dict = person_record.as_dict()
- persons = self.api.plshell.GetPersons(self.api.plauth, [person_dict['email']], ['person_id', 'key_ids'])
-
- # Create the person record
- if not persons:
- self.api.plshell.AddPerson(self.api.plauth, person_dict)
- key_ids = []
- else:
- key_ids = persons[0]['key_ids']
-
- self.api.plshell.AddPersonToSlice(self.api.plauth, person_dict['email'], slicename)
-
- # Get this users local keys
- keylist = self.api.plshell.GetKeys(self.api.plauth, key_ids, ['key'])
- keys = [key['key'] for key in keylist]
-
- # add keys that arent already there
- for personkey in person_dict['keys']:
- if personkey not in keys:
- key = {'key_type': 'ssh', 'key': personkey}
- self.api.plshell.AddPersonKey(self.api.plauth, person_dict['email'], key)
-
- # find out where this slice is currently running
- nodelist = self.api.plshell.GetNodes(self.api.plauth, slice['node_ids'], ['hostname'])
- hostnames = [node['hostname'] for node in nodelist]
-
- # get netspec details
- nodespecs = spec.getDictsByTagName('NodeSpec')
- nodes = []
- for nodespec in nodespecs:
- if isinstance(nodespec['name'], list):
- nodes.extend(nodespec['name'])
- elif isinstance(nodespec['name'], StringTypes):
- nodes.append(nodespec['name'])
-
- # remove nodes not in rspec
- deleted_nodes = list(set(hostnames).difference(nodes))
- # add nodes from rspec
- added_nodes = list(set(nodes).difference(hostnames))
-
- self.api.plshell.AddSliceToNodes(self.api.plauth, slicename, added_nodes)
- self.api.plshell.DeleteSliceFromNodes(self.api.plauth, slicename, deleted_nodes)
-
- return 1
-
- def create_slice_smgr(self, hrn, rspec):
- spec = Rspec()
- tempspec = Rspec()
- spec.parseString(rspec)
- slicename = hrn_to_pl_slicename(hrn)
- specDict = spec.toDict()
- if specDict.has_key('Rspec'): specDict = specDict['Rspec']
- if specDict.has_key('start_time'): start_time = specDict['start_time']
- else: start_time = 0
- if specDict.has_key('end_time'): end_time = specDict['end_time']
- else: end_time = 0
-
- rspecs = {}
- aggregates = Aggregates(self.api)
- credential = self.api.getCredential()
- # only attempt to extract information about the aggregates we know about
- for aggregate in aggregates:
- netspec = spec.getDictByTagNameValue('NetSpec', aggregate)
- if netspec:
- # creat a plc dict
- resources = {'start_time': start_time, 'end_time': end_time, 'networks': netspec}
- resourceDict = {'Rspec': resources}
- tempspec.parseDict(resourceDict)
- rspecs[aggregate] = tempspec.toxml()
-
- # notify the aggregates
- for aggregate in rspecs.keys():
- try:
- aggregates[aggregate].create_slice(credential, hrn, rspecs[aggregate])
- except:
- print >> log, "Error creating slice %(hrn)s at aggregate %(aggregate)s" % locals()
- return 1
-
-
- def start_slice(self, hrn):
- if self.api.interface in ['aggregate']:
- self.start_slice_aggregate(hrn)
- elif self.api.interface in ['slicemgr']:
- self.start_slice_smgr(hrn)
-
- def start_slice_aggregate(self, hrn):
- slicename = hrn_to_pl_slicename(hrn)
- slices = self.api.plshell.GetSlices(self.api.plauth, {'name': slicename}, ['slice_id'])
- if not slices:
- raise RecordNotFound(hrn)
- slice_id = slices[0]
- attributes = self.api.plshell.GetSliceAttributes(self.api.plauth, {'slice_id': slice_id, 'name': 'enabled'}, ['slice_attribute_id'])
- attribute_id = attreibutes[0]['slice_attribute_id']
- self.api.plshell.UpdateSliceAttribute(self.api.plauth, attribute_id, "1" )
- return 1
-
- def start_slice_smgr(self, hrn):
- credential = self.api.getCredential()
- aggregates = Aggregates(self.api)
- for aggregate in aggregates:
- aggregates[aggregate].start_slice(credential, hrn)
- return 1
-
-
- def stop_slice(self, hrn):
- if self.api.interface in ['aggregate']:
- self.stop_slice_aggregate(hrn)
- elif self.api.interface in ['slicemgr']:
- self.stop_slice_smgr(hrn)
-
- def stop_slice_aggregate(self, hrn):
- slicename = hrn_to_pl_slicename(hrn)
- slices = self.api.plshell.GetSlices(self.api.plauth, {'name': slicename}, ['slice_id'])
- if not slices:
- raise RecordNotFound(hrn)
- slice_id = slices[0]['slice_id']
- attributes = self.api.plshell.GetSliceAttributes(self.api.plauth, {'slice_id': slice_id, 'name': 'enabled'}, ['slice_attribute_id'])
- attribute_id = attributes[0]['slice_attribute_id']
- self.api.plshell.UpdateSliceAttribute(self.api.plauth, attribute_id, "0")
- return 1
-
- def stop_slice_smgr(self, hrn):
- credential = self.api.getCredential()
- aggregates = Aggregates(self.api)
- for aggregate in aggregates:
- aggregates[aggregate].stop_slice(credential, hrn)
-
git://git.onelab.eu / sfa.git / blobdiff