X-Git-Url: http://git.onelab.eu/?a=blobdiff_plain;f=sfa%2Fplc%2Fpldriver.py;h=2b86f6cd4fc9556ff4e70fca5a53940a8f35c80e;hb=d710b76d4d0c64f1cd16f5eb8857f8fbac1a9077;hp=1ec55b04be7ea656d9060c399441712af5be8ebd;hpb=d488fd6dd74964244332b635c6586836e4650143;p=sfa.git diff --git a/sfa/plc/pldriver.py b/sfa/plc/pldriver.py index 1ec55b04..2b86f6cd 100644 --- a/sfa/plc/pldriver.py +++ b/sfa/plc/pldriver.py @@ -1,16 +1,34 @@ +import time +import datetime # -from sfa.util.faults import MissingSfaInfo, UnknownSfaType +from sfa.util.faults import MissingSfaInfo, UnknownSfaType, \ + RecordNotFound, SfaNotImplemented, SliverDoesNotExist + from sfa.util.sfalogging import logger -from sfa.util.table import SfaTable from sfa.util.defaultdict import defaultdict +from sfa.util.sfatime import utcparse, datetime_to_string, datetime_to_epoch +from sfa.util.xrn import hrn_to_urn, get_leaf, urn_to_sliver_id +from sfa.util.cache import Cache -from sfa.util.xrn import hrn_to_urn, get_leaf -from sfa.util.plxrn import slicename_to_hrn, hostname_to_hrn, hrn_to_pl_slicename, hrn_to_pl_login_base +# one would think the driver should not need to mess with the SFA db, but.. +from sfa.storage.alchemy import dbsession +from sfa.storage.model import RegRecord + +# used to be used in get_ticket +#from sfa.trust.sfaticket import SfaTicket + +from sfa.rspecs.version_manager import VersionManager +from sfa.rspecs.rspec import RSpec # the driver interface, mostly provides default behaviours from sfa.managers.driver import Driver from sfa.plc.plshell import PlShell +import sfa.plc.peers as peers +from sfa.plc.plaggregate import PlAggregate +from sfa.plc.plslices import PlSlices +from sfa.util.plxrn import slicename_to_hrn, hostname_to_hrn, hrn_to_pl_slicename, hrn_to_pl_login_base + def list_to_dict(recs, key): """ @@ -24,42 +42,44 @@ def list_to_dict(recs, key): # can be sent as-is; it takes care of authentication # from the global config # -# so we inherit PlShell just so one can do driver.GetNodes -# which would not make much sense in the context of other testbeds -# so ultimately PlDriver should drop the PlShell inheritance -# and would have a driver.shell reference to a PlShell instead -# -class PlDriver (Driver, PlShell): +class PlDriver (Driver): + + # the cache instance is a class member so it survives across incoming requests + cache = None def __init__ (self, config): - PlShell.__init__ (self, config) + Driver.__init__ (self, config) + self.shell = PlShell (config) + self.cache=None + if config.SFA_AGGREGATE_CACHING: + if PlDriver.cache is None: + PlDriver.cache = Cache() + self.cache = PlDriver.cache - self.hrn = config.SFA_INTERFACE_HRN - # xxx thgen fixme - use SfaTable hardwired for now - # will need to extend generic to support multiple storage systems - #self.SfaTable = SfaTable - # Initialize the PLC shell only if SFA wraps a myPLC - rspec_type = config.get_aggregate_type() - assert (rspec_type == 'pl' or rspec_type == 'vini' or \ - rspec_type == 'eucalyptus' or rspec_type == 'max') + ######################################## + ########## registry oriented + ######################################## ########## disabled users - def is_enabled_entity (self, record): - self.fill_record_info(record) + def is_enabled (self, record): + # the incoming record was augmented already, so 'enabled' should be set if record['type'] == 'user': return record['enabled'] # only users can be disabled return True + def augment_records_with_testbed_info (self, sfa_records): + return self.fill_record_info (sfa_records) + ########## def register (self, sfa_record, hrn, pub_key): type = sfa_record['type'] pl_record = self.sfa_fields_to_pl_fields(type, hrn, sfa_record) if type == 'authority': - sites = self.GetSites([pl_record['login_base']]) + sites = self.shell.GetSites([pl_record['login_base']]) if not sites: - pointer = self.AddSite(pl_record) + pointer = self.shell.AddSite(pl_record) else: pointer = sites[0]['site_id'] @@ -68,38 +88,38 @@ class PlDriver (Driver, PlShell): for key in pl_record.keys(): if key not in acceptable_fields: pl_record.pop(key) - slices = self.GetSlices([pl_record['name']]) + slices = self.shell.GetSlices([pl_record['name']]) if not slices: - pointer = self.AddSlice(pl_record) + pointer = self.shell.AddSlice(pl_record) else: pointer = slices[0]['slice_id'] elif type == 'user': - persons = self.GetPersons([sfa_record['email']]) + persons = self.shell.GetPersons([sfa_record['email']]) if not persons: - pointer = self.AddPerson(dict(sfa_record)) + pointer = self.shell.AddPerson(dict(sfa_record)) else: pointer = persons[0]['person_id'] if 'enabled' in sfa_record and sfa_record['enabled']: - self.UpdatePerson(pointer, {'enabled': sfa_record['enabled']}) + self.shell.UpdatePerson(pointer, {'enabled': sfa_record['enabled']}) # add this person to the site only if she is being added for the first # time by sfa and doesont already exist in plc if not persons or not persons[0]['site_ids']: login_base = get_leaf(sfa_record['authority']) - self.AddPersonToSite(pointer, login_base) + self.shell.AddPersonToSite(pointer, login_base) # What roles should this user have? - self.AddRoleToPerson('user', pointer) + self.shell.AddRoleToPerson('user', pointer) # Add the user's key if pub_key: - self.AddPersonKey(pointer, {'key_type' : 'ssh', 'key' : pub_key}) + self.shell.AddPersonKey(pointer, {'key_type' : 'ssh', 'key' : pub_key}) elif type == 'node': login_base = hrn_to_pl_login_base(sfa_record['authority']) - nodes = api.driver.GetNodes([pl_record['hostname']]) + nodes = self.shell.GetNodes([pl_record['hostname']]) if not nodes: - pointer = api.driver.AddNode(login_base, pl_record) + pointer = self.shell.AddNode(login_base, pl_record) else: pointer = nodes[0]['node_id'] @@ -116,13 +136,13 @@ class PlDriver (Driver, PlShell): raise UnknownSfaType(type) if (type == "authority"): - self.UpdateSite(pointer, new_sfa_record) + self.shell.UpdateSite(pointer, new_sfa_record) elif type == "slice": pl_record=self.sfa_fields_to_pl_fields(type, hrn, new_sfa_record) if 'name' in pl_record: pl_record.pop('name') - self.UpdateSlice(pointer, pl_record) + self.shell.UpdateSlice(pointer, pl_record) elif type == "user": # SMBAKER: UpdatePerson only allows a limited set of fields to be @@ -135,27 +155,27 @@ class PlDriver (Driver, PlShell): 'password', 'phone', 'url', 'bio', 'accepted_aup', 'enabled']: update_fields[key] = all_fields[key] - self.UpdatePerson(pointer, update_fields) + self.shell.UpdatePerson(pointer, update_fields) if new_key: # must check this key against the previous one if it exists - persons = self.GetPersons([pointer], ['key_ids']) + persons = self.shell.GetPersons([pointer], ['key_ids']) person = persons[0] keys = person['key_ids'] - keys = self.GetKeys(person['key_ids']) + keys = self.shell.GetKeys(person['key_ids']) # Delete all stale keys key_exists = False for key in keys: if new_key != key['key']: - self.DeleteKey(key['key_id']) + self.shell.DeleteKey(key['key_id']) else: key_exists = True if not key_exists: - self.AddPersonKey(pointer, {'key_type': 'ssh', 'key': new_key}) + self.shell.AddPersonKey(pointer, {'key_type': 'ssh', 'key': new_key}) elif type == "node": - self.UpdateNode(pointer, new_sfa_record) + self.shell.UpdateNode(pointer, new_sfa_record) return True @@ -165,20 +185,20 @@ class PlDriver (Driver, PlShell): type=sfa_record['type'] pointer=sfa_record['pointer'] if type == 'user': - persons = self.GetPersons(pointer) + persons = self.shell.GetPersons(pointer) # only delete this person if he has site ids. if he doesnt, it probably means # he was just removed from a site, not actually deleted if persons and persons[0]['site_ids']: - self.DeletePerson(pointer) + self.shell.DeletePerson(pointer) elif type == 'slice': - if self.GetSlices(pointer): - self.DeleteSlice(pointer) + if self.shell.GetSlices(pointer): + self.shell.DeleteSlice(pointer) elif type == 'node': - if self.GetNodes(pointer): - self.DeleteNode(pointer) + if self.shell.GetNodes(pointer): + self.shell.DeleteNode(pointer) elif type == 'authority': - if self.GetSites(pointer): - self.DeleteSite(pointer) + if self.shell.GetSites(pointer): + self.shell.DeleteSite(pointer) return True @@ -187,7 +207,7 @@ class PlDriver (Driver, PlShell): ## - # Convert SFA fields to PLC fields for use when registering up updating + # Convert SFA fields to PLC fields for use when registering or updating # registry record in the PLC database # @@ -205,8 +225,10 @@ class PlDriver (Driver, PlShell): pl_record["url"] = sfa_record["url"] if "description" in sfa_record: pl_record["description"] = sfa_record["description"] - if "expires" in sfa_record: - pl_record["expires"] = int(sfa_record["expires"]) + if "expires" in sfa_record: + date = utcparse(sfa_record['expires']) + expires = datetime_to_epoch(date) + pl_record["expires"] = expires elif type == "node": if not "hostname" in pl_record: @@ -242,7 +264,9 @@ class PlDriver (Driver, PlShell): records = [records] self.fill_record_pl_info(records) + self.fill_record_hrns(records) self.fill_record_sfa_info(records) + return records def fill_record_pl_info(self, records): """ @@ -266,16 +290,16 @@ class PlDriver (Driver, PlShell): # get pl records nodes, sites, slices, persons, keys = {}, {}, {}, {}, {} if node_ids: - node_list = self.GetNodes(node_ids) + node_list = self.shell.GetNodes(node_ids) nodes = list_to_dict(node_list, 'node_id') if site_ids: - site_list = self.GetSites(site_ids) + site_list = self.shell.GetSites(site_ids) sites = list_to_dict(site_list, 'site_id') if slice_ids: - slice_list = self.GetSlices(slice_ids) + slice_list = self.shell.GetSlices(slice_ids) slices = list_to_dict(slice_list, 'slice_id') if person_ids: - person_list = self.GetPersons(person_ids) + person_list = self.shell.GetPersons(person_ids) persons = list_to_dict(person_list, 'person_id') for person in persons: key_ids.extend(persons[person]['key_ids']) @@ -284,7 +308,7 @@ class PlDriver (Driver, PlShell): 'slice': slices, 'user': persons} if key_ids: - key_list = self.GetKeys(key_ids) + key_list = self.shell.GetKeys(key_ids) keys = list_to_dict(key_list, 'key_id') # fill record info @@ -308,9 +332,6 @@ class PlDriver (Driver, PlShell): pubkeys = [keys[key_id]['key'] for key_id in record['key_ids'] if key_id in keys] record['keys'] = pubkeys - # fill in record hrns - records = self.fill_record_hrns(records) - return records def fill_record_hrns(self, records): @@ -335,16 +356,16 @@ class PlDriver (Driver, PlShell): # get pl records slices, persons, sites, nodes = {}, {}, {}, {} if site_ids: - site_list = self.GetSites(site_ids, ['site_id', 'login_base']) + site_list = self.shell.GetSites(site_ids, ['site_id', 'login_base']) sites = list_to_dict(site_list, 'site_id') if person_ids: - person_list = self.GetPersons(person_ids, ['person_id', 'email']) + person_list = self.shell.GetPersons(person_ids, ['person_id', 'email']) persons = list_to_dict(person_list, 'person_id') if slice_ids: - slice_list = self.GetSlices(slice_ids, ['slice_id', 'name']) + slice_list = self.shell.GetSlices(slice_ids, ['slice_id', 'name']) slices = list_to_dict(slice_list, 'slice_id') if node_ids: - node_list = self.GetNodes(node_ids, ['node_id', 'hostname']) + node_list = self.shell.GetNodes(node_ids, ['node_id', 'hostname']) nodes = list_to_dict(node_list, 'node_id') # convert ids to hrns @@ -382,10 +403,14 @@ class PlDriver (Driver, PlShell): if site_id in sites] site_hrns = [".".join([auth_hrn, lbase]) for lbase in login_bases] record['sites'] = site_hrns + + if 'expires' in record: + date = utcparse(record['expires']) + datestring = datetime_to_string(date) + record['expires'] = datestring return records - # aggregates is basically api.aggregates def fill_record_sfa_info(self, records): def startswith(prefix, values): @@ -405,7 +430,7 @@ class PlDriver (Driver, PlShell): site_pis = {} if site_ids: pi_filter = {'|roles': ['pi'], '|site_ids': site_ids} - pi_list = self.GetPersons(pi_filter, ['person_id', 'site_ids']) + pi_list = self.shell.GetPersons(pi_filter, ['person_id', 'site_ids']) for pi in pi_list: # we will need the pi's hrns also person_ids.append(pi['person_id']) @@ -422,22 +447,19 @@ class PlDriver (Driver, PlShell): # we'll replace pl ids (person_ids) with hrns from the sfa records # we obtain - # get the sfa records - # xxx thgen fixme - use SfaTable hardwired for now - # table = self.SfaTable() - table = SfaTable() + # get the registry records person_list, persons = [], {} - person_list = table.find({'type': 'user', 'pointer': person_ids}) + person_list = dbsession.query (RegRecord).filter(RegRecord.pointer.in_(person_ids)) # create a hrns keyed on the sfa record's pointer. # Its possible for multiple records to have the same pointer so # the dict's value will be a list of hrns. persons = defaultdict(list) for person in person_list: - persons[person['pointer']].append(person) + persons[person.pointer].append(person) # get the pl records pl_person_list, pl_persons = [], {} - pl_person_list = self.GetPersons(person_ids, ['person_id', 'roles']) + pl_person_list = self.shell.GetPersons(person_ids, ['person_id', 'roles']) pl_persons = list_to_dict(pl_person_list, 'person_id') # fill sfa info @@ -447,13 +469,14 @@ class PlDriver (Driver, PlShell): # continue sfa_info = {} type = record['type'] + logger.info("fill_record_sfa_info - incoming record typed %s"%type) if (type == "slice"): # all slice users are researchers record['geni_urn'] = hrn_to_urn(record['hrn'], 'slice') record['PI'] = [] record['researcher'] = [] for person_id in record.get('person_ids', []): - hrns = [person['hrn'] for person in persons[person_id]] + hrns = [person.hrn for person in persons[person_id]] record['researcher'].extend(hrns) # pis at the slice's site @@ -461,12 +484,13 @@ class PlDriver (Driver, PlShell): pl_pis = site_pis[record['site_id']] pi_ids = [pi['person_id'] for pi in pl_pis] for person_id in pi_ids: - hrns = [person['hrn'] for person in persons[person_id]] + hrns = [person.hrn for person in persons[person_id]] record['PI'].extend(hrns) record['geni_creator'] = record['PI'] elif (type.startswith("authority")): record['url'] = None + logger.info("fill_record_sfa_info - authority xherex") if record['pointer'] != -1: record['PI'] = [] record['operator'] = [] @@ -475,7 +499,7 @@ class PlDriver (Driver, PlShell): if pointer not in persons or pointer not in pl_persons: # this means there is not sfa or pl record for this user continue - hrns = [person['hrn'] for person in persons[pointer]] + hrns = [person.hrn for person in persons[pointer]] roles = pl_persons[pointer]['roles'] if 'pi' in roles: record['PI'].extend(hrns) @@ -489,6 +513,7 @@ class PlDriver (Driver, PlShell): # xxx TODO: URI, LatLong, IP, DNS elif (type == "user"): + logger.info('setting user.email') sfa_info['email'] = record.get("email", "") sfa_info['geni_urn'] = hrn_to_urn(record['hrn'], 'user') sfa_info['geni_certificate'] = record['gid'] @@ -499,20 +524,317 @@ class PlDriver (Driver, PlShell): #################### # plcapi works by changes, compute what needs to be added/deleted def update_relation (self, subject_type, target_type, subject_id, target_ids): - # hard-wire the code for slice/user for now + # hard-wire the code for slice/user for now, could be smarter if needed if subject_type =='slice' and target_type == 'user': - subject=self.GetSlices (subject_id)[0] + subject=self.shell.GetSlices (subject_id)[0] current_target_ids = subject['person_ids'] add_target_ids = list ( set (target_ids).difference(current_target_ids)) del_target_ids = list ( set (current_target_ids).difference(target_ids)) - logger.info ("subject_id = %s (type=%s)"%(subject_id,type(subject_id))) + logger.debug ("subject_id = %s (type=%s)"%(subject_id,type(subject_id))) for target_id in add_target_ids: - self.AddPersonToSlice (target_id,subject_id) - logger.info ("add_target_id = %s (type=%s)"%(target_id,type(target_id))) + self.shell.AddPersonToSlice (target_id,subject_id) + logger.debug ("add_target_id = %s (type=%s)"%(target_id,type(target_id))) for target_id in del_target_ids: - logger.info ("del_target_id = %s (type=%s)"%(target_id,type(target_id))) - self.DeletePersonFromSlice (target_id, subject_id) + logger.debug ("del_target_id = %s (type=%s)"%(target_id,type(target_id))) + self.shell.DeletePersonFromSlice (target_id, subject_id) else: logger.info('unexpected relation to maintain, %s -> %s'%(subject_type,target_type)) + ######################################## + ########## aggregate oriented + ######################################## + + def testbed_name (self): return "myplc" + + # 'geni_request_rspec_versions' and 'geni_ad_rspec_versions' are mandatory + def aggregate_version (self): + version_manager = VersionManager() + ad_rspec_versions = [] + request_rspec_versions = [] + for rspec_version in version_manager.versions: + if rspec_version.content_type in ['*', 'ad']: + ad_rspec_versions.append(rspec_version.to_dict()) + if rspec_version.content_type in ['*', 'request']: + request_rspec_versions.append(rspec_version.to_dict()) + return { + 'testbed':self.testbed_name(), + 'geni_request_rspec_versions': request_rspec_versions, + 'geni_ad_rspec_versions': ad_rspec_versions, + } + + def list_slices (self, creds, options): + # look in cache first + if self.cache: + slices = self.cache.get('slices') + if slices: + logger.debug("PlDriver.list_slices returns from cache") + return slices + + # get data from db + slices = self.shell.GetSlices({'peer_id': None}, ['name']) + slice_hrns = [slicename_to_hrn(self.hrn, slice['name']) for slice in slices] + slice_urns = [hrn_to_urn(slice_hrn, 'slice') for slice_hrn in slice_hrns] + + # cache the result + if self.cache: + logger.debug ("PlDriver.list_slices stores value in cache") + self.cache.add('slices', slice_urns) + + return slice_urns + + # first 2 args are None in case of resource discovery + def list_resources (self, slice_urn, slice_hrn, creds, options): + cached_requested = options.get('cached', True) + + version_manager = VersionManager() + # get the rspec's return format from options + rspec_version = version_manager.get_version(options.get('geni_rspec_version')) + version_string = "rspec_%s" % (rspec_version) + + #panos adding the info option to the caching key (can be improved) + if options.get('info'): + version_string = version_string + "_"+options.get('info', 'default') + + # look in cache first + if cached_requested and self.cache and not slice_hrn: + rspec = self.cache.get(version_string) + if rspec: + logger.debug("PlDriver.ListResources: returning cached advertisement") + return rspec + + #panos: passing user-defined options + #print "manager options = ",options + aggregate = PlAggregate(self) + rspec = aggregate.get_rspec(slice_xrn=slice_urn, version=rspec_version, + options=options) + + # cache the result + if self.cache and not slice_hrn: + logger.debug("PlDriver.ListResources: stores advertisement in cache") + self.cache.add(version_string, rspec) + + return rspec + + def sliver_status (self, slice_urn, slice_hrn): + # find out where this slice is currently running + slicename = hrn_to_pl_slicename(slice_hrn) + + slices = self.shell.GetSlices([slicename], ['slice_id', 'node_ids','person_ids','name','expires']) + if len(slices) == 0: + raise SliverDoesNotExist("%s (used %s as slicename internally)" % (slice_hrn, slicename)) + slice = slices[0] + + # report about the local nodes only + nodes = self.shell.GetNodes({'node_id':slice['node_ids'],'peer_id':None}, + ['node_id', 'hostname', 'site_id', 'boot_state', 'last_contact']) + + if len(nodes) == 0: + raise SliverDoesNotExist("You have not allocated any slivers here") + + site_ids = [node['site_id'] for node in nodes] + + result = {} + top_level_status = 'unknown' + if nodes: + top_level_status = 'ready' + result['geni_urn'] = slice_urn + result['pl_login'] = slice['name'] + result['pl_expires'] = datetime_to_string(utcparse(slice['expires'])) + + resources = [] + for node in nodes: + res = {} + res['pl_hostname'] = node['hostname'] + res['pl_boot_state'] = node['boot_state'] + res['pl_last_contact'] = node['last_contact'] + if node['last_contact'] is not None: + + res['pl_last_contact'] = datetime_to_string(utcparse(node['last_contact'])) + sliver_id = urn_to_sliver_id(slice_urn, slice['slice_id'], node['node_id']) + res['geni_urn'] = sliver_id + if node['boot_state'] == 'boot': + res['geni_status'] = 'ready' + else: + res['geni_status'] = 'failed' + top_level_status = 'failed' + + res['geni_error'] = '' + + resources.append(res) + + result['geni_status'] = top_level_status + result['geni_resources'] = resources + return result + + def create_sliver (self, slice_urn, slice_hrn, creds, rspec_string, users, options): + + aggregate = PlAggregate(self) + slices = PlSlices(self) + peer = slices.get_peer(slice_hrn) + sfa_peer = slices.get_sfa_peer(slice_hrn) + slice_record=None + if users: + slice_record = users[0].get('slice_record', {}) + + # parse rspec + rspec = RSpec(rspec_string) + requested_attributes = rspec.version.get_slice_attributes() + + # ensure site record exists + site = slices.verify_site(slice_hrn, slice_record, peer, sfa_peer, options=options) + # ensure slice record exists + slice = slices.verify_slice(slice_hrn, slice_record, peer, sfa_peer, options=options) + # ensure person records exists + persons = slices.verify_persons(slice_hrn, slice, users, peer, sfa_peer, options=options) + # ensure slice attributes exists + slices.verify_slice_attributes(slice, requested_attributes, options=options) + + # add/remove slice from nodes + requested_slivers = [node.get('component_name') for node in rspec.version.get_nodes_with_slivers()] + nodes = slices.verify_slice_nodes(slice, requested_slivers, peer) + + # add/remove links links + slices.verify_slice_links(slice, rspec.version.get_link_requests(), nodes) + + # handle MyPLC peer association. + # only used by plc and ple. + slices.handle_peer(site, slice, persons, peer) + + return aggregate.get_rspec(slice_xrn=slice_urn, version=rspec.version) + + def delete_sliver (self, slice_urn, slice_hrn, creds, options): + slicename = hrn_to_pl_slicename(slice_hrn) + slices = self.shell.GetSlices({'name': slicename}) + if not slices: + return 1 + slice = slices[0] + + # determine if this is a peer slice + # xxx I wonder if this would not need to use PlSlices.get_peer instead + # in which case plc.peers could be deprecated as this here + # is the only/last call to this last method in plc.peers + peer = peers.get_peer(self, slice_hrn) + try: + if peer: + self.shell.UnBindObjectFromPeer('slice', slice['slice_id'], peer) + self.shell.DeleteSliceFromNodes(slicename, slice['node_ids']) + finally: + if peer: + self.shell.BindObjectToPeer('slice', slice['slice_id'], peer, slice['peer_slice_id']) + return 1 + + def renew_sliver (self, slice_urn, slice_hrn, creds, expiration_time, options): + slicename = hrn_to_pl_slicename(slice_hrn) + slices = self.shell.GetSlices({'name': slicename}, ['slice_id']) + if not slices: + raise RecordNotFound(slice_hrn) + slice = slices[0] + requested_time = utcparse(expiration_time) + record = {'expires': int(datetime_to_epoch(requested_time))} + try: + self.shell.UpdateSlice(slice['slice_id'], record) + return True + except: + return False + + # remove the 'enabled' tag + def start_slice (self, slice_urn, slice_hrn, creds): + slicename = hrn_to_pl_slicename(slice_hrn) + slices = self.shell.GetSlices({'name': slicename}, ['slice_id']) + if not slices: + raise RecordNotFound(slice_hrn) + slice_id = slices[0]['slice_id'] + slice_tags = self.shell.GetSliceTags({'slice_id': slice_id, 'tagname': 'enabled'}, ['slice_tag_id']) + # just remove the tag if it exists + if slice_tags: + self.shell.DeleteSliceTag(slice_tags[0]['slice_tag_id']) + return 1 + + # set the 'enabled' tag to 0 + def stop_slice (self, slice_urn, slice_hrn, creds): + slicename = hrn_to_pl_slicename(slice_hrn) + slices = self.shell.GetSlices({'name': slicename}, ['slice_id']) + if not slices: + raise RecordNotFound(slice_hrn) + slice_id = slices[0]['slice_id'] + slice_tags = self.shell.GetSliceTags({'slice_id': slice_id, 'tagname': 'enabled'}) + if not slice_tags: + self.shell.AddSliceTag(slice_id, 'enabled', '0') + elif slice_tags[0]['value'] != "0": + tag_id = slice_tags[0]['slice_tag_id'] + self.shell.UpdateSliceTag(tag_id, '0') + return 1 + + def reset_slice (self, slice_urn, slice_hrn, creds): + raise SfaNotImplemented ("reset_slice not available at this interface") + + # xxx this code is quite old and has not run for ages + # it is obviously totally broken and needs a rewrite + def get_ticket (self, slice_urn, slice_hrn, creds, rspec_string, options): + raise SfaNotImplemented,"PlDriver.get_ticket needs a rewrite" +# please keep this code for future reference +# slices = PlSlices(self) +# peer = slices.get_peer(slice_hrn) +# sfa_peer = slices.get_sfa_peer(slice_hrn) +# +# # get the slice record +# credential = api.getCredential() +# interface = api.registries[api.hrn] +# registry = api.server_proxy(interface, credential) +# records = registry.Resolve(xrn, credential) +# +# # make sure we get a local slice record +# record = None +# for tmp_record in records: +# if tmp_record['type'] == 'slice' and \ +# not tmp_record['peer_authority']: +# #Error (E0602, GetTicket): Undefined variable 'SliceRecord' +# slice_record = SliceRecord(dict=tmp_record) +# if not record: +# raise RecordNotFound(slice_hrn) +# +# # similar to CreateSliver, we must verify that the required records exist +# # at this aggregate before we can issue a ticket +# # parse rspec +# rspec = RSpec(rspec_string) +# requested_attributes = rspec.version.get_slice_attributes() +# +# # ensure site record exists +# site = slices.verify_site(slice_hrn, slice_record, peer, sfa_peer) +# # ensure slice record exists +# slice = slices.verify_slice(slice_hrn, slice_record, peer, sfa_peer) +# # ensure person records exists +# # xxx users is undefined in this context +# persons = slices.verify_persons(slice_hrn, slice, users, peer, sfa_peer) +# # ensure slice attributes exists +# slices.verify_slice_attributes(slice, requested_attributes) +# +# # get sliver info +# slivers = slices.get_slivers(slice_hrn) +# +# if not slivers: +# raise SliverDoesNotExist(slice_hrn) +# +# # get initscripts +# initscripts = [] +# data = { +# 'timestamp': int(time.time()), +# 'initscripts': initscripts, +# 'slivers': slivers +# } +# +# # create the ticket +# object_gid = record.get_gid_object() +# new_ticket = SfaTicket(subject = object_gid.get_subject()) +# new_ticket.set_gid_caller(api.auth.client_gid) +# new_ticket.set_gid_object(object_gid) +# new_ticket.set_issuer(key=api.key, subject=self.hrn) +# new_ticket.set_pubkey(object_gid.get_pubkey()) +# new_ticket.set_attributes(data) +# new_ticket.set_rspec(rspec) +# #new_ticket.set_parent(api.auth.hierarchy.get_auth_ticket(auth_hrn)) +# new_ticket.encode() +# new_ticket.sign() +# +# return new_ticket.save_to_string(save_parents=True)