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.
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'
git://git.onelab.eu / sfa.git / blobdiff