From c72088e850fd041e0f8f9de7591b55c3cdeca900 Mon Sep 17 00:00:00 2001 From: Tony Mack Date: Tue, 14 Apr 2009 02:51:24 +0000 Subject: [PATCH] moved all methods to geni/methods/ directory --- geni/aggregate.py | 575 +--------------------------------------------- geni/slicemgr.py | 443 +---------------------------------- 2 files changed, 3 insertions(+), 1015 deletions(-) diff --git a/geni/aggregate.py b/geni/aggregate.py index a4733459..4495bdba 100644 --- a/geni/aggregate.py +++ b/geni/aggregate.py @@ -7,31 +7,10 @@ import xmlrpclib from types import StringTypes, ListType from geni.util.geniserver import GeniServer from geni.util.geniclient import GeniClient -from geni.util.cert import Keypair, Certificate -from geni.util.credential import Credential -from geni.util.trustedroot import TrustedRootList from geni.util.excep import * -from geni.util.misc import * -from geni.util.config import Config -from geni.util.rspec import Rspec -from geni.util.specdict import * -from geni.util.storage import SimpleStorage class Aggregate(GeniServer): - hrn = None - nodes_ttl = None - nodes = None - slices = None - policy = None - timestamp = None - threshold = None - shell = None - registry = None - key_file = None - cert_file = None - credential = None - ## # Create a new aggregate object. # @@ -43,559 +22,9 @@ class Aggregate(GeniServer): def __init__(self, ip, port, key_file, cert_file, config = "/usr/share/geniwrapper/geni/util/geni_config"): GeniServer.__init__(self, ip, port, key_file, cert_file) self.server.interface = 'aggregate' - self.key_file = key_file - self.cert_file = cert_file - self.config = Config(config) - self.basedir = self.config.GENI_BASE_DIR + os.sep - self.server_basedir = self.basedir + os.sep + "geni" + os.sep - self.hrn = self.config.GENI_INTERFACE_HRN - - nodes_file = os.sep.join([self.server_basedir, 'agg.' + self.hrn + '.components']) - self.nodes = SimpleStorage(nodes_file) - self.nodes.load() - - slices_file = os.sep.join([self.server_basedir, 'agg.' + self.hrn + '.slices']) - self.slices = SimpleStorage(slices_file) - self.slices.load() - - policy_file = os.sep.join([self.server_basedir, 'agg.' + self.hrn + '.policy']) - self.policy = SimpleStorage(policy_file, {'whitelist': [], 'blacklist': []}) - self.policy.load() - - timestamp_file = os.sep.join([self.server_basedir, 'agg.' + self.hrn + '.timestamp']) - self.timestamp = SimpleStorage(timestamp_file) - - # How long before we refresh nodes cache - self.nodes_ttl = 1 - - self.connectPLC() - self.connectRegistry() - self.loadCredential() - - def connectRegistry(self): - """ - Connect to the registry - """ - # connect to registry using GeniClient - address = self.config.GENI_REGISTRY_HOSTNAME - port = self.config.GENI_REGISTRY_PORT - url = 'http://%(address)s:%(port)s' % locals() - self.registry = GeniClient(url, self.key_file, self.cert_file) - - - def connectPLC(self): - """ - Connect to the plc api interface. First attempt to impor thte shell, if that fails - try to connect to the xmlrpc server. - """ - self.auth = {'Username': self.config.GENI_PLC_USER, - 'AuthMethod': 'password', - 'AuthString': self.config.GENI_PLC_PASSWORD} - - try: - # try to import PLC.Shell directly - sys.path.append(self.config.GENI_PLC_SHELL_PATH) - import PLC.Shell - self.shell = PLC.Shell.Shell(globals()) - self.shell.AuthCheck() - except ImportError: - # connect to plc api via xmlrpc - plc_host = self.config.GENI_PLC_HOST - plc_port = self.config.GENI_PLC_PORT - plc_api_path = self.config.GENI_PLC_API_PATH - url = "https://%(plc_host)s:%(plc_port)s/%(plc_api_path)s/" % locals() - self.auth = {'Username': self.config.GENI_PLC_USER, - 'AuthMethod': 'password', - 'AuthString': self.config.GENI_PLC_PASSWORD} - - self.shell = xmlrpclib.Server(url, verbose = 0, allow_none = True) - self.shell.AuthCheck(self.auth) - - def loadCredential(self): - """ - Attempt to load credential from file if it exists. If it doesnt get - credential from registry. - """ - - ma_cred_filename = self.server_basedir + os.sep + "agg." + self.hrn + ".ma.cred" - - # see if this file exists - try: - self.credential = Credential(filename = ma_cred_filename) - except IOError: - self.credential = self.getCredentialFromRegistry() - - def getCredentialFromRegistry(self): - """ - Get our current credential from the registry - """ - # get self credential - self_cred_filename = self.server_basedir + os.sep + "agg." + self.hrn + ".cred" - self_cred = self.registry.get_credential(None, 'ma', self.hrn) - self_cred.save_to_file(self_cred_filename, save_parents = True) - - - # get ma credential - ma_cred_filename = self.server_basedir + os.sep + "agg." + self.hrn + ".ma.cred" - ma_cred = self.registry.get_credential(self_cred, 'ma', self.hrn) - ma_cred.save_to_file(ma_cred_filename, save_parents=True) - return ma_cred - - - def hostname_to_hrn(self, login_base, hostname): - """ - Convert hrn to plantelab name. - """ - genihostname = "_".join(hostname.split(".")) - return ".".join([self.hrn, login_base, genihostname]) - - def slicename_to_hrn(self, slicename): - """ - Convert hrn to planetlab name. - """ - parts = slicename.split("_") - slice_hrn = ".".join([self.hrn, parts[0]]) + "." + "_".join(parts[1:]) - - return slice_hrn - - def refresh_components(self): - """ - Update the cached list of nodes and save in 4 differnt formats - (rspec, dns, ip) - """ - - # get node list in rspec format - rspec = Rspec() - rspec.parseString(self.get_rspec(self.hrn, 'aggregate')) - - # filter nodes according to policy - rspec.filter('NodeSpec', 'name', blacklist=self.policy['blacklist'], whitelist=self.policy['whitelist']) - - # extract ifspecs from rspec to get ip's - ips = [] - ifspecs = rspec.getDictsByTagName('IfSpec') - for ifspec in ifspecs: - if ifspec.has_key('addr') and ifspec['addr']: - ips.append(ifspec['addr']) - - # extract nodespecs from rspec to get dns names - hostnames = [] - nodespecs = rspec.getDictsByTagName('NodeSpec') - for nodespec in nodespecs: - if nodespec.has_key('name') and nodespec['name']: - hostnames.append(nodespec['name']) - - - node_details = {} - node_details['rspec'] = rspec.toxml() - node_details['ip'] = ips - node_details['dns'] = hostnames - # save state - self.nodes = SimpleStorage(self.nodes.db_filename, node_details) - self.nodes.write() - - - # update timestamp and threshold - self.timestamp['timestamp'] = datetime.datetime.now() - delta = datetime.timedelta(hours=self.nodes_ttl) - self.threshold = self.timestamp['timestamp'] + delta - self.timestamp.write() - - def load_components(self): - """ - Read cached list of nodes. - """ - # Read component list from cached file - self.nodes.load() - self.timestamp.load() - time_format = "%Y-%m-%d %H:%M:%S" - timestamp = self.timestamp['timestamp'] - self.timestamp['timestamp'] = datetime.datetime.fromtimestamp(time.mktime(time.strptime(timestamp, time_format))) - delta = datetime.timedelta(hours=self.nodes_ttl) - self.threshold = self.timestamp['timestamp'] + delta - - def load_policy(self): - """ - Read the list of blacklisted and whitelisted nodes. - """ - self.policy.load() - - - def getNodes(self, format = 'rspec'): - """ - Return a list of components at this aggregate. - """ - valid_formats = ['rspec', 'hrn', 'dns', 'ip'] - if not format: - format = 'rspec' - if format not in valid_formats: - raise Exception, "Invalid format specified, must be one of the following: %s" \ - % ", ".join(valid_formats) - - # Reload components list - now = datetime.datetime.now() - #self.load_components() - if not self.threshold or not self.timestamp['timestamp'] or now > self.threshold: - self.refresh_components() - elif now < self.threshold and not self.nodes.keys(): - self.load_components() - return self.nodes[format] - - def getSlices(self): - """ - Return a list of instnatiated managed by this slice manager. - """ - - slices = self.shell.GetSlices(self.auth, {}, ['name']) - slice_hrns = [self.slicename_to_hrn(slice['name']) for slice in slices] - - return slice_hrns - - def get_rspec(self, hrn, type): - """ - Get resource information from PLC - """ - - # Get the required nodes - if type in ['aggregate']: - nodes = self.shell.GetNodes(self.auth) - try: linkspecs = self.shell.GetLinkSpecs() # if call is supported - except: linkspecs = [] - elif type in ['slice']: - slicename = hrn_to_pl_slicename(hrn) - slices = self.shell.GetSlices(self.auth, [slicename]) - if not slices: - nodes = [] - else: - slice = slices[0] - node_ids = slice['node_ids'] - nodes = self.shell.GetNodes(self.auth, node_ids) - - # Filter out whitelisted nodes - public_nodes = lambda n: n.has_key('slice_ids_whitelist') and not n['slice_ids_whitelist'] - nodes = filter(public_nodes, nodes) - - # Get all network interfaces - interface_ids = [] - for node in nodes: - interface_ids.extend(node['nodenetwork_ids']) - interfaces = self.shell.GetNodeNetworks(self.auth, interface_ids) - interface_dict = {} - for interface in interfaces: - interface_dict[interface['nodenetwork_id']] = interface - - # join nodes with thier interfaces - for node in nodes: - node['interfaces'] = [] - for nodenetwork_id in node['nodenetwork_ids']: - node['interfaces'].append(interface_dict[nodenetwork_id]) - - # convert and threshold to ints - if self.timestamp.has_key('timestamp') and self.timestamp['timestamp']: - timestamp = self.timestamp['timestamp'] - threshold = self.threshold - else: - timestamp = datetime.datetime.now() - delta = datetime.timedelta(hours=self.nodes_ttl) - threshold = timestamp + delta - - - start_time = int(timestamp.strftime("%s")) - end_time = int(threshold.strftime("%s")) - duration = end_time - start_time - - # create the plc dict - networks = [{'nodes': nodes, - 'name': self.hrn, - 'start_time': start_time, - 'duration': duration}] - if type in ['aggregate']: - networks[0]['links'] = linkspecs - resources = {'networks': networks, 'start_time': start_time, 'duration': duration} - - # convert the plc dict to an rspec dict - resourceDict = RspecDict(resources) - # convert the rspec dict to xml - rspec = Rspec() - rspec.parseDict(resourceDict) - return rspec.toxml() - - def getResources(self, slice_hrn): - """ - Return the current rspec for the specified slice. - """ - rspec = self.get_rspec(slice_hrn, 'slice') - - return rspec - - - def getTicket(self, hrn, rspec): - """ - Retrieve a ticket. This operation is currently implemented on PLC - only (see SFA, engineering decisions); it is not implemented on - components. - - @param name name of the slice to retrieve a ticket for - @param rspec resource specification dictionary - @return the string representation of a ticket object - """ - #self.registry.get_ticket(name, rspec) - - return - - - def createSlice(self, slice_hrn, rspec, attributes = []): - """ - Instantiate the specified slice according to whats defined in the rspec. - """ - - spec = Rspec(rspec) - # save slice state locally - # we can assume that spec object has been validated so its safer to - # save this instead of the unvalidated rspec the user gave us - self.slices[slice_hrn] = spec.toxml() - self.slices.write() - - # Get the slice record from geni - slice = {} - records = self.registry.resolve(self.credential, slice_hrn) - - for record in records: - if record.get_type() in ['slice']: - slice_info = record.as_dict() - slice = slice_info['pl_info'] - if not slice: - raise RecordNotFound(slice_hrn) - - - # Make sure slice exists at plc, if it doesnt add it - slicename = hrn_to_pl_slicename(slice_hrn) - slices = self.shell.GetSlices(self.auth, [slicename], ['node_ids']) - if not slices: - parts = slicename.split("_") - login_base = parts[0] - # if site doesnt exist add it - sites = self.shell.GetSites(self.auth, [login_base]) - if not sites: - authority = get_authority(slice_hrn) - site_records = self.registry.resolve(self.credential, authority) - site_record = {} - if not site_records: - raise RecordNotFound(authority) - site_record = site_records[0] - site_info = site_record.as_dict() - site = site_info['pl_info'] - - # add the site - site.pop('site_id') - site_id = self.shell.AddSite(self.auth, site) - else: - site = sites[0] - - self.shell.AddSlice(self.auth, slice) - - # get the list of valid slice users from the registry and make - # they are added to the slice - geni_info = slice_info['geni_info'] - researchers = geni_info['researcher'] - for researcher in researchers: - person_record = {} - person_records = self.registry.resolve(self.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()['pl_info'] - persons = self.shell.GetPersons(self.auth, [person_dict['email']], ['person_id', 'key_ids']) - - # Create the person record - if not persons: - self.shell.AddPerson(self.auth, person_dict) - key_ids = [] - else: - key_ids = persons[0]['key_ids'] - - self.shell.AddPersonToSlice(self.auth, person_dict['email'], slicename) - - # Get this users local keys - keylist = self.shell.GetKeys(self.auth, 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.shell.AddPersonKey(self.auth, person_dict['email'], key) - - # find out where this slice is currently running - nodelist = self.shell.GetNodes(self.auth, 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']) - - # save slice state locally - # we can assume that spec object has been validated so its safer to - # save this instead of the unvalidated rspec the user gave us - self.slices[slice_hrn] = spec.toxml() - self.slices.write() - - # remove nodes not in rspec - deleted_nodes = list(set(hostnames).difference(nodes)) - # add nodes from rspec - added_nodes = list(set(nodes).difference(hostnames)) - - self.shell.AddSliceToNodes(self.auth, slicename, added_nodes) - self.shell.DeleteSliceFromNodes(self.auth, slicename, deleted_nodes) - - return 1 - - def updateSlice(self, slice_hrn, rspec, attributes = []): - return self.create_slice(slice_hrn, rspec, attributes) - - def deleteSlice(self, slice_hrn): - """ - Remove this slice from all components it was previouly associated with and - free up the resources it was using. - """ - if self.slices.has_key(slice_hrn): - self.slices.pop(slice_hrn) - self.slices.write() - - slicename = hrn_to_pl_slicename(slice_hrn) - slices = self.shell.GetSlices(self.auth, [slicename]) - if not slices: - return 1 - slice = slices[0] - - self.shell.DeleteSliceFromNodes(self.auth, slicename, slice['node_ids']) - return 1 - - def startSlice(self, slice_hrn): - """ - Stop the slice at plc. - """ - slicename = hrn_to_pl_slicename(slice_hrn) - slices = self.shell.GetSlices(self.auth, {'name': slicename}, ['slice_id']) - if not slices: - #raise RecordNotFound(slice_hrn) - return 1 - slice_id = slices[0] - atrribtes = self.shell.GetSliceAttributes({'slice_id': slice_id, 'name': 'enabled'}, ['slice_attribute_id']) - attribute_id = attreibutes[0] - self.shell.UpdateSliceAttribute(self.auth, attribute_id, "1" ) - return 1 - - def stopSlice(self, slice_hrn): - """ - Stop the slice at plc - """ - slicename = hrn_to_pl_slicename(slice_hrn) - slices = self.shell.GetSlices(self.auth, {'name': slicename}, ['slice_id']) - if not slices: - #raise RecordNotFound(slice_hrn) - return 1 - slice_id = slices[0] - atrribtes = self.shell.GetSliceAttributes({'slice_id': slice_id, 'name': 'enabled'}, ['slice_attribute_id']) - attribute_id = attreibutes[0] - self.shell.UpdateSliceAttribute(self.auth, attribute_id, "0") - return 1 - - - def resetSlice(self, slice_hrn): - """ - Reset the slice - """ - # XX not yet implemented - return 1 - - def getPolicy(self): - """ - Return this aggregates policy. - """ - - return self.policy - - - -############################## -## Server methods here for now -############################## - - - # XX fix rights, should be function name defined in - # privilege_table (from util/rights.py) - def list_nodes(self, cred): - self.decode_authentication(cred, 'listnodes') - return self.getNodes() - - def list_slices(self, cred): - self.decode_authentication(cred, 'listslices') - return self.getSlices() - - def get_resources(self, cred, hrn = None): - self.decode_authentication(cred, 'listnodes') - if not hrn: - return self.getNodes() - else: - return self.getResources(hrn) - - def get_ticket(self, cred, hrn, rspec): - self.decode_authentication(cred, 'getticket') - return self.getTicket(hrn, rspec) - - def get_policy(self, cred): - self.decode_authentication(cred, 'getpolicy') - return self.getPolicy() - - def create_slice(self, cred, hrn, rspec): - self.decode_authentication(cred, 'createslice') - return self.createSlice(hrn, rspec) - - def update_slice(self, cred, hrn, rspec): - self.decode_authentication(cred, 'updateslice') - return self.updateSlice(hrn) - - def delete_slice(self, cred, hrn): - self.decode_authentication(cred, 'deleteslice') - return self.deleteSlice(hrn) - - def start_slice(self, cred, hrn): - self.decode_authentication(cred, 'startslice') - return self.startSlice(hrn) - - def stop_slice(self, cred, hrn): - self.decode_authentication(cred, 'stopslice') - return self.stopSlice(hrn) - - def reset_slice(self, cred, hrn): - self.decode_authentication(cred, 'resetslice') - return self.resetSlice(hrn) - - def register_functions(self): - GeniServer.register_functions(self) - - # Aggregate interface methods - self.server.register_function(self.list_nodes) - self.server.register_function(self.list_slices) - self.server.register_function(self.get_resources) - self.server.register_function(self.get_policy) - self.server.register_function(self.create_slice) - self.server.register_function(self.update_slice) - self.server.register_function(self.delete_slice) - self.server.register_function(self.start_slice) - self.server.register_function(self.stop_slice) - self.server.register_function(self.reset_slice) - - +## +# Aggregates is a dictionary of geniclient aggregate connections keyed on the aggregate hrn class Aggregates(dict): diff --git a/geni/slicemgr.py b/geni/slicemgr.py index 605daf98..5ecf8e09 100644 --- a/geni/slicemgr.py +++ b/geni/slicemgr.py @@ -5,31 +5,11 @@ import time from geni.util.geniserver import * from geni.util.geniclient import * -from geni.util.cert import * -from geni.util.credential import Credential -from geni.util.trustedroot import * from geni.util.excep import * from geni.util.misc import * -from geni.util.config import * -from geni.util.rspec import Rspec -from geni.util.specdict import * -from geni.util.storage import SimpleStorage, XmlStorage class SliceMgr(GeniServer): - hrn = None - nodes_ttl = None - nodes = None - slices = None - policy = None - aggregates = None - timestamp = None - threshold = None - shell = None - registry = None - key_file = None - cert_file = None - credential = None ## # Create a new slice manager object. @@ -41,425 +21,4 @@ class SliceMgr(GeniServer): def __init__(self, ip, port, key_file, cert_file, config = "/usr/share/geniwrapper/geni/util/geni_config"): GeniServer.__init__(self, ip, port, key_file, cert_file) - self.key_file = key_file - self.cert_file = cert_file - self.config = Config(config) - self.basedir = self.config.GENI_BASE_DIR + os.sep - self.server_basedir = self.basedir + os.sep + "geni" + os.sep - self.hrn = self.config.GENI_INTERFACE_HRN - self.time_format = "%Y-%m-%d %H:%M:%S" - - # Get list of aggregates this sm talks to - aggregates_file = self.server_basedir + os.sep + 'aggregates.xml' - connection_dict = {'hrn': '', 'addr': '', 'port': ''} - self.aggregate_info = XmlStorage(aggregates_file, {'aggregates': {'aggregate': [connection_dict]}} ) - self.aggregate_info.load() - - # Get cached list of nodes (rspec) - nodes_file = os.sep.join([self.server_basedir, 'smgr.' + self.hrn + '.components']) - self.nodes = SimpleStorage(nodes_file) - self.nodes.load() - - # Get cacheds slice states - slices_file = os.sep.join([self.server_basedir, 'smgr.' + self.hrn + '.slices']) - self.slices = SimpleStorage(slices_file) - self.slices.load() - - # Get the policy - policy_file = os.sep.join([self.server_basedir, 'smgr.' + self.hrn + '.policy']) - self.policy = SimpleStorage(policy_file, {'whitelist': [], 'blacklist': []}) - self.policy.load() - - # How long before we refresh nodes cache - self.nodes_ttl = 1 - - self.connectRegistry() - self.loadCredential() - self.connectAggregates() - - - def loadCredential(self): - """ - Attempt to load credential from file if it exists. If it doesnt get - credential from registry. - """ - - # see if this file exists - ma_cred_filename = self.server_basedir + os.sep + "smgr." + self.hrn + ".sa.cred" - try: - self.credential = Credential(filename = ma_cred_filename) - except IOError: - self.credential = self.getCredentialFromRegistry() - - - def getCredentialFromRegistry(self): - """ - Get our current credential from the registry. - """ - # get self credential - self_cred_filename = self.server_basedir + os.sep + "smgr." + self.hrn + ".cred" - self_cred = self.registry.get_credential(None, 'ma', self.hrn) - self_cred.save_to_file(self_cred_filename, save_parents=True) - - # get ma credential - ma_cred_filename = self.server_basedir + os.sep + "smgr." + self.hrn + ".sa.cred" - ma_cred = self.registry.get_credential(self_cred, 'sa', self.hrn) - ma_cred.save_to_file(ma_cred_filename, save_parents=True) - return ma_cred - - def connectRegistry(self): - """ - Connect to the registry - """ - # connect to registry using GeniClient - address = self.config.GENI_REGISTRY_HOSTNAME - port = self.config.GENI_REGISTRY_PORT - url = 'http://%(address)s:%(port)s' % locals() - self.registry = GeniClient(url, self.key_file, self.cert_file) - - def connectAggregates(self): - """ - Get connection details for the trusted peer aggregates from file and - create a GeniClient connection to each. - """ - self.aggregates = {} - aggregates = self.aggregate_info['aggregates']['aggregate'] - if isinstance(aggregates, dict): - aggregates = [aggregates] - if isinstance(aggregates, list): - for aggregate in aggregates: - # create xmlrpc connection using GeniClient - hrn, address, port = aggregate['hrn'], aggregate['addr'], aggregate['port'] - if not hrn or not address or not port: - continue - url = 'http://%(address)s:%(port)s' % locals() - self.aggregates[hrn] = GeniClient(url, self.key_file, self.cert_file) - - def item_hrns(self, items): - """ - Take a list of items (components or slices) and return a dictionary where - the key is the authoritative hrn and the value is a list of items at that - hrn. - """ - item_hrns = {} - agg_hrns = self.aggregates.keys() - for agg_hrn in agg_hrns: - item_hrns[agg_hrn] = [] - for item in items: - for agg_hrn in agg_hrns: - if item.startswith(agg_hrn): - item_hrns[agg_hrn] = item - - return item_hrns - - - def hostname_to_hrn(self, login_base, hostname): - """ - Convert hrn to plantelab name. - """ - genihostname = "_".join(hostname.split(".")) - return ".".join([self.hrn, login_base, genihostname]) - - def slicename_to_hrn(self, slicename): - """ - Convert hrn to planetlab name. - """ - slicename = slicename.replace("_", ".") - return ".".join([self.hrn, slicename]) - - def refresh_components(self): - """ - Update the cached list of nodes. - """ - - # convert and threshold to ints - if self.nodes.has_key('timestamp') and self.nodes['timestamp']: - hr_timestamp = self.nodes['timestamp'] - timestamp = datetime.datetime.fromtimestamp(time.mktime(time.strptime(hr_timestamp, self.time_format))) - hr_threshold = self.nodes['threshold'] - threshold = datetime.datetime.fromtimestamp(time.mktime(time.strptime(hr_threshold, self.time_format))) - else: - timestamp = datetime.datetime.now() - hr_timestamp = timestamp.strftime(self.time_format) - delta = datetime.timedelta(hours=self.nodes_ttl) - threshold = timestamp + delta - hr_threshold = threshold.strftime(self.time_format) - - start_time = int(timestamp.strftime("%s")) - end_time = int(threshold.strftime("%s")) - duration = end_time - start_time - - aggregates = self.aggregates.keys() - rspecs = {} - networks = [] - rspec = Rspec() - for aggregate in aggregates: - try: - # get the rspec from the aggregate - agg_rspec = self.aggregates[aggregate].list_nodes(self.credential) - # extract the netspec from each aggregates rspec - rspec.parseString(agg_rspec) - networks.extend([{'NetSpec': rspec.getDictsByTagName('NetSpec')}]) - except: - # XX print out to some error log - print "Error calling list nodes at aggregate %s" % aggregate - raise - - # create the rspec dict - resources = {'networks': networks, 'start_time': start_time, 'duration': duration} - resourceDict = {'Rspec': resources} - # convert rspec dict to xml - rspec.parseDict(resourceDict) - - # filter according to policy - rspec.filter('NodeSpec', 'name', blacklist=self.policy['blacklist'], whitelist=self.policy['whitelist']) - - # update timestamp and threshold - timestamp = datetime.datetime.now() - hr_timestamp = timestamp.strftime(self.time_format) - delta = datetime.timedelta(hours=self.nodes_ttl) - threshold = timestamp + delta - hr_threshold = threshold.strftime(self.time_format) - - nodedict = {'rspec': rspec.toxml(), - 'timestamp': hr_timestamp, - 'threshold': hr_threshold} - - self.nodes = SimpleStorage(self.nodes.db_filename, nodedict) - self.nodes.write() - - def load_policy(self): - """ - Read the list of blacklisted and whitelisted nodes. - """ - self.policy.load() - - def load_slices(self): - """ - Read current slice instantiation states. - """ - self.slices.load() - - - def getNodes(self, format = 'rspec'): - """ - Return a list of components managed by this slice manager. - """ - # Reload components list - if not self.nodes.has_key('threshold') or not self.nodes['threshold'] or not self.nodes.has_key('timestamp') or not self.nodes['timestamp']: - self.refresh_components() - else: - now = datetime.datetime.now() - threshold = datetime.datetime.fromtimestamp(time.mktime(time.strptime(self.nodes['threshold'], self.time_format))) - if now > threshold: - self.refresh_components() - return self.nodes[format] - - - def getSlices(self): - """ - Return a list of instnatiated managed by this slice manager. - """ - slice_hrns = [] - for aggregate in self.aggregates: - try: - slices = self.aggregates[aggregate].list_slices(self.credential) - slice_hrns.extend(slices) - except: - raise - # print to some error log - pass - - return slice_hrns - - def getResources(self, slice_hrn): - """ - Return the current rspec for the specified slice. - """ - - # request this slices state from all known aggregates - rspec = Rspec() - rspecdicts = [] - networks = [] - for hrn in self.aggregates.keys(): - # check if the slice has resources at this hrn - slice_resources = self.aggregates[hrn].get_resources(self.credential, slice_hrn) - rspec.parseString(slice_resources) - networks.extend([{'NetSpec': rspec.getDictsByTagName('NetSpec')}]) - - # merge all these rspecs into one - start_time = int(datetime.datetime.now().strftime("%s")) - end_time = start_time - duration = end_time - start_time - - resources = {'networks': networks, 'start_time': start_time, 'duration': duration} - resourceDict = {'Rspec': resources} - # convert rspec dict to xml - rspec.parseDict(resourceDict) - # save this slices resources - #self.slices[slice_hrn] = rspec.toxml() - #self.slices.write() - - return rspec.toxml() - - def createSlice(self, cred, slice_hrn, rspec): - """ - Instantiate the specified slice according to whats defined in the rspec. - """ - - # save slice state locally - # we can assume that spec object has been validated so its safer to - # save this instead of the unvalidated rspec the user gave us - spec = Rspec() - tempspec = Rspec() - spec.parseString(rspec) - - self.slices[slice_hrn] = spec.toxml() - self.slices.write() - - # extract network list from the rspec and create a separate - # rspec for each network - slicename = hrn_to_pl_slicename(slice_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 = {} - # only attempt to extract information about the aggregates we know about - for hrn in self.aggregates.keys(): - netspec = spec.getDictByTagNameValue('NetSpec', hrn) - if netspec: - # creat a plc dict - resources = {'start_time': start_time, 'end_time': end_time, 'networks': netspec} - resourceDict = {'Rspec': resources} - tempspec.parseDict(resourceDict) - rspecs[hrn] = tempspec.toxml() - - # notify the aggregates - for hrn in rspecs.keys(): - self.aggregates[hrn].create_slice(self.credential, slice_hrn, rspecs[hrn]) - - return 1 - - def updateSlice(self, slice_hrn, rspec, attributes = []): - """ - Update the specifed slice - """ - self.create_slice(slice_hrn, rspec, attributes) - - def deleteSlice_(self, slice_hrn): - """ - Remove this slice from all components it was previouly associated with and - free up the resources it was using. - """ - # XX need to get the correct credential - cred = self.credential - - if self.slices.has_key(slice_hrn): - self.slices.pop(slice_hrn) - self.slices.write() - - for hrn in self.aggregates.keys(): - self.aggregates[hrn].deleteSlice(cred, slice_hrn) - - return 1 - - def startSlice(self, slice_hrn): - """ - Stop the slice at plc. - """ - cred = self.credential - - for hrn in self.aggregates.keys(): - self.aggregates[hrn].startSlice(cred, slice_hrn) - return 1 - - def stopSlice(self, slice_hrn): - """ - Stop the slice at plc - """ - cred = self.credential - for hrn in self.aggregates.keys(): - self.aggregates[hrn].startSlice(cred, slice_hrn) - return 1 - - def resetSlice(self, slice_hrn): - """ - Reset the slice - """ - # XX not yet implemented - return 1 - - def getPolicy(self): - """ - Return the policy of this slice manager. - """ - - return self.policy - - - -############################## -## Server methods here for now -############################## - - def list_nodes(self, cred): - self.decode_authentication(cred, 'listnodes') - return self.getNodes() - - def list_slices(self, cred): - self.decode_authentication(cred, 'listslices') - return self.getSlices() - - def get_resources(self, cred, hrn=None): - self.decode_authentication(cred, 'listnodes') - if not hrn: - return self.getNodes() - else: - return self.getResources(hrn) - - def get_ticket(self, cred, hrn, rspec): - self.decode_authentication(cred, 'getticket') - return self.getTicket(hrn, rspec) - - def get_policy(self, cred): - self.decode_authentication(cred, 'getpolicy') - return self.getPolicy() - - def create_slice(self, cred, hrn, rspec): - self.decode_authentication(cred, 'createslice') - return self.createSlice(cred, hrn, rspec) - - def delete_slice(self, cred, hrn): - self.decode_authentication(cred, 'deleteslice') - return self.deleteSlice(hrn) - - def start_slice(self, cred, hrn): - self.decode_authentication(cred, 'startslice') - return self.startSlice(hrn) - - def stop_slice(self, cred, hrn): - self.decode_authentication(cred, 'stopslice') - return self.stopSlice(hrn) - - def reset_slice(self, cred, hrn): - self.decode_authentication(cred, 'resetslice') - return self.resetSlice(hrn) - - def register_functions(self): - GeniServer.register_functions(self) - - # Aggregate interface methods - self.server.register_function(self.list_nodes) - self.server.register_function(self.list_slices) - self.server.register_function(self.get_resources) - self.server.register_function(self.get_policy) - self.server.register_function(self.create_slice) - self.server.register_function(self.delete_slice) - self.server.register_function(self.start_slice) - self.server.register_function(self.stop_slice) - self.server.register_function(self.reset_slice) - + self.server.interface = 'slicemgr' -- 2.43.0