import datetime
import time
-from util.geniserver import *
-from util.geniclient import *
-from util.cert import *
-from util.trustedroot import *
-from util.excep import *
-from util.misc import *
-from util.config import Config
+from geni.util.geniserver import *
+from geni.util.geniclient import *
+from geni.util.cert import *
+from geni.util.trustedroot import *
+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 SliceMgr(GeniServer):
hrn = None
key_file = None
cert_file = None
- components_file = None
- slices_file = None
- components_ttl = None
- components = []
- slices = []
- policy = {}
+ nodes_ttl = None
+ nodes = None
+ slices = None
+ policy = None
+ aggregates = None
timestamp = None
- threshold = None
+ threshold = None
shell = None
- aggregates = {}
-
+ registry = None
+
##
# Create a new slice manager object.
# @param key_file private key filename of registry
# @param cert_file certificate filename containing public key (could be a GID file)
- def __init__(self, ip, port, key_file, cert_file, config = "/usr/share/geniwrapper/util/geni_config"):
+ def __init__(self, ip, port, key_file, cert_file, config = "/usr/share/geniwrapper/geni/util/geni_config"):
GeniServer.__init__(ip, port, key_file, cert_file)
- self.key_file = key_file
- self.cert_file = cert_file
- self.conf = Config(config)
+ self.key_file = key_file
+ self.cert_file = cert_file
+ self.conf = Config(config)
basedir = self.conf.GENI_BASE_DIR + os.sep
- server_basedir = basedir + os.sep + "plc" + os.sep
- self.hrn = conf.GENI_INTERFACE_HRN
-
- # Get list of aggregates this sm talks to
- aggregates_file = server_basedir + os.sep + 'aggregates'
- self.load_aggregates(aggregates_file)
- self.components_file = os.sep.join([server_basedir, 'components', 'slicemgr.' + hrn + '.comp'])
- self.slices_file = os.sep.join([server_basedir, 'components', 'slicemgr' + hrn + '.slices'])
- self.timestamp_file = os.sep.join([server_basedir, 'components', 'slicemgr' + hrn + '.timestamp'])
- self.components_ttl = components_ttl
- self.policy['whitelist'] = []
- self.policy['blacklist'] = []
- self.connect()
-
- def load_aggregates(self, aggregates_file):
- """
- Get info about the aggregates available to us from file and create
+ server_basedir = basedir + os.sep + "geni" + os.sep
+ self.hrn = conf.GENI_INTERFACE_HRN
+
+ # Get list of aggregates this sm talks to
+ # XX do we use simplestorage to maintain this file manually?
+ aggregates_file = server_basedir + os.sep + 'aggregates'
+ self.aggregates = SimpleStorage(aggregates_file)
+ self.connect_aggregates(aggregates_file)
+
+ nodes_file = os.sep.join([server_basedir, 'smgr.' + self.hrn + '.components'])
+ self.nodes = SimpleStorage(nodes_file)
+ self.nodes.load()
+
+ slices_file = os.sep.join([server_basedir, 'slicemgr' + self.hrn + '.slices'])
+ self.slices = SimpleStorage(slices_file)
+ self.slices.load()
+
+ policy_file = os.sep.join([server_basedir, 'smgr.policy'])
+ self.policy = SimpleStorage(policy_file)
+ self.policy.load()
+
+ timestamp_file = os.sep.join([server_basedir, 'smgr.' + self.hrn + '.timestamp'])
+ self.timestamp = SimpleStorage(timestamp_file)
+
+ self.nodes_ttl = 1
+ self.connectAggregates()
+ self.connectRegistry()
+
+ def connect_aggregates(self, aggregates_file):
+ """
+ Get info about the aggregates available to us from file and create
an xmlrpc connection to each. If any info is invalid, skip it.
- """
- lines = []
+ """
+ lines = []
try:
- f = open(aggregates_file, 'r')
- lines = f.readlines()
- f.close()
- except: raise
-
- for line in lines:
- # Skip comments
- if line.strip.startswith("#"):
- continue
- agg_info = line.split("\t").split(" ")
-
- # skip invalid info
- if len(agg_info) != 3:
- continue
-
- # create xmlrpc connection using GeniClient
- hrn, address, port = agg_info[0], agg_info[1], agg_info[2]
- url = 'https://%(address)s:%(port)s' % locals()
- self.aggregates[hrn] = GeniClient(url, self.key_file, self.cert_file)
+ f = open(aggregates_file, 'r')
+ lines = f.readlines()
+ f.close()
+ except: raise
+
+ for line in lines:
+ # Skip comments
+ if line.strip.startswith("#"):
+ continue
+ agg_info = line.split("\t").split(" ")
+
+ # skip invalid info
+ if len(agg_info) != 3:
+ continue
+
+ # create xmlrpc connection using GeniClient
+ hrn, address, port = agg_info[0], agg_info[1], agg_info[2]
+ url = 'https://%(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
-
+ """
+ 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.
- """
+ """
+ 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.
- """
+ """
+ Convert hrn to planetlab name.
+ """
slicename = slicename.replace("_", ".")
return ".".join([self.hrn, slicename])
def refresh_components(self):
- """
- Update the cached list of nodes.
- """
- print "refreshing"
-
- aggregates = self.aggregates.keys()
- all_nodes = []
- all_slices = []
- for aggregate in aggregates:
- try:
- # resolve components hostnames
- nodes = self.aggregates[aggregate].get_components()
- all_nodes.extend(nodes)
- # update timestamp and threshold
- self.timestamp = datetime.datetime.now()
- delta = datetime.timedelta(hours=self.components_ttl)
- self.threshold = self.timestamp + delta
- except:
- # XX print out to some error log
- pass
+ """
+ Update the cached list of nodes.
+ """
+ print "refreshing"
+
+ aggregates = self.aggregates.keys()
+ all_nodes = []
+ nodedict = {}
+ for aggregate in aggregates:
+ try:
+ # resolve components hostnames
+ nodes = self.aggregates[aggregate].get_components()
+ all_nodes.extend(nodes)
+ except:
+ # XX print out to some error log
+ pass
- self.components = all_nodes
- f = open(self.components_file, 'w')
- f.write(str(self.components))
- f.close()
- f = open(self.timestamp_file, 'w')
- f.write(str(self.threshold))
- f.close()
+ for node in all_nodes:
+ if self.polciy['whitelist'] and node not in self.polciy['whitelist']:
+ continue
+ if self.polciy['blacklist'] and node in self.policy['blacklist']:
+ continue
+
+ nodedict[node] = node
+
+ self.nodes = SimpleStorate(self.nodes.db_filename, nodedict)
+ self.nodes.write()
+
+ # update timestamp and threshold
+ self.timestamp['timestamp'] = datetime.datetime.now()
+ delta = datetime.timedelta(hours=self.nodes_tt1)
+ self.threshold = self.timestamp['timestamp'] + delta
+ self.timestamp.write()
+
def load_components(self):
- """
- Read cached list of nodes and slices.
- """
- print "loading nodes"
- # Read component list from cached file
- if os.path.exists(self.components_file):
- f = open(self.components_file, 'r')
- self.components = eval(f.read())
- f.close()
-
- time_format = "%Y-%m-%d %H:%M:%S"
- if os.path.exists(self.timestamp_file):
- f = open(self.timestamp_file, 'r')
- timestamp = str(f.read()).split(".")[0]
- self.timestamp = datetime.datetime.fromtimestamp(time.mktime(time.strptime(timestamp, time_format)))
- delta = datetime.timedelta(hours=self.components_ttl)
- self.threshold = self.timestamp + delta
- f.close()
+ """
+ Read cached list of nodes and slices.
+ """
+ print "loading 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.
"""
- whitelist = []
- blacklist = []
- if os.path.exists(self.whitelist_file):
- f = open(self.whitelist_file, 'r')
- lines = f.readlines()
- f.close()
- for line in lines:
- line = line.strip().replace(" ", "").replace("\n", "")
- whitelist.extend(line.split(","))
-
-
- if os.path.exists(self.blacklist_file):
- f = open(self.blacklist_file, 'r')
- lines = f.readlines()
- f.close()
- for line in lines:
- line = line.strip().replace(" ", "").replace("\n", "")
- blacklist.extend(line.split(","))
-
- self.policy['whitelist'] = whitelist
- self.policy['blacklist'] = blacklist
+ self.policy.load()
def load_slices(self):
- """
- Read current slice instantiation states.
- """
- print "loading slices"
- if os.path.exists(self.slices_file):
- f = open(self.components_file, 'r')
- self.slices = eval(f.read())
- f.close()
-
- def write_slices(self):
"""
- Write current slice instantiations to file.
+ Read current slice instantiation states.
"""
- print "writing slices"
- f = open(self.slices_file, 'w')
- f.write(str(self.slices))
- f.close()
+ print "loading slices"
+ self.slices.load()
def get_components(self):
- """
- Return a list of components managed by this slice manager.
- """
- # Reload components list
- now = datetime.datetime.now()
- #self.load_components()
- if not self.threshold or not self.timestamp or now > self.threshold:
- self.refresh_components()
- elif now < self.threshold and not self.components:
- self.load_components()
- return self.components
+ """
+ Return a list of components managed by this slice manager.
+ """
+ # Reload components list
+ now = datetime.datetime.now()
+ #self.load_components()
+ if not self.threshold or not self.timestamp or now > self.threshold:
+ self.refresh_components()
+ elif now < self.threshold and not self.components:
+ self.load_components()
+ return self.nodes.keys()
def get_slices(self):
- """
- Return a list of instnatiated managed by this slice manager.
- """
- now = datetime.datetime.now()
- #self.load_components()
- if not self.threshold or not self.timestamp or now > self.threshold:
- self.refresh_components()
- elif now < self.threshold and not self.slices:
- self.load_components()
- return self.slices
-
- def get_slivers(self, hrn):
- """
- Return the list of slices instantiated at the specified component.
- """
-
- # hrn is assumed to be a component hrn
- if hrn not in self.slices:
- raise RecordNotFound(hrn)
-
- return self.slices[hrn]
-
- def get_rspec(self, hrn, type):
- #rspec = Rspec()
- if type in ['node']:
- nodes = self.shell.GetNodes(self.auth)
- elif type in ['slice']:
- slices = self.shell.GetSlices(self.auth)
- elif type in ['aggregate']:
- pass
+ """
+ Return a list of instnatiated managed by this slice manager.
+ """
+ return dict(self.slices)
def get_resources(self, slice_hrn):
- """
- Return the current rspec for the specified slice.
- """
- slicename = hrn_to_plcslicename(slice_hrn)
- rspec = self.get_rspec(slicenamem, 'slice' )
-
- return rspec
+ """
+ Return the current rspec for the specified slice.
+ """
+
+ cred = None
+ if slice_hrn in self.slices.keys():
+ # check if we alreay have this slices state saved
+ rspec = self.slices[slice_hrn]
+ else:
+ # request this slices state from all known aggregates
+ rspecdicts = []
+ for hrn in self.aggregates.keys():
+ # XX need to use the right credentials for this call
+ # check if the slice has resources at this hrn
+ tempresources = self.aggregates[hrn].resources(cred, slice_hrn)
+ temprspec = Rspec()
+ temprspec.parseString(temprspec)
+ if temprspec.getDictsByTagName('NodeSpec'):
+ # append this rspec to the list of rspecs
+ rspecdicts.append(temprspec.toDict())
+
+ # merge all these rspecs into one
+ start_time = int(self.timestamp['timestamp'].strftime("%s"))
+ end_time = int(self.duration.strftime("%s"))
+ duration = end_time - start_time
+
+ # create a plc dict
+ networks = [rspecdict['networks'][0] for rspecdict in rspecdicts]
+ resources = {'networks': networks, 'start_time': start_time, 'duration': duration}
+ # convert the plc dict to an rspec dict
+ resourceDict = RspecDict(resources)
+ resourceSpec = Rspec()
+ resourceSpec.parseDict(resourceDict)
+ rspec = resourceSpec.toxml()
+ # save this slices resources
+ self.slices[slice_hrn] = rspec
+ self.slices.write()
+
+ return rspec
def create_slice(self, slice_hrn, rspec, attributes):
- """
- Instantiate the specified slice according to whats defined in the rspec.
- """
- slicename = self.hrn_to_plcslicename(slice_hrn)
- #spec = Rspec(rspec)
- node_hrns = []
- #for netspec in spec['networks]:
- # networkname = netspec['name']
- # nodespec = spec['networks']['nodes']
- # nodes = [nspec['name'] for nspec in nodespec]
- # node_hrns = [networkname + node for node in nodes]
- #
- self.db.AddSliceToNodes(slice_hrn, node_hrns)
- return 1
-
+ """
+ Instantiate the specified slice according to whats defined in the rspec.
+ """
+ # XX need to gget the correct credentials
+ cred = None
+
+ # 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()
+
+ # extract network list from the rspec and create a separate
+ # rspec for each network
+ slicename = self.hrn_to_plcslicename(slice_hrn)
+ spec = Rspec()
+ spec.parseString(rspec)
+ specDict = spec.toDict()
+ start_time = specDict['start_time']
+ end_time = specDict['end_time']
+
+ 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
+ tempdict = {'start_time': star_time, 'end_time': end_time, 'networks': netspec}
+ #convert the plc dict to rpsec dict
+ resourceDict = RspecDict(tempdict)
+ # parse rspec dict
+ tempspec = Rspec()
+ tempspec.parseDict(resourceDict)
+ rspecs[hrn] = tempspec.toxml()
+
+ # notify the aggregates
+ for hrn in self.rspecs.keys():
+ self.aggregates[hrn].createSlice(cred, rspecs[hrn])
+
+ return 1
+
+ def update_slice(self, slice_hrn, rspec, attributes = []):
+ """
+ Update the specifed slice
+ """
+ self.create_slice(slice_hrn, rspec, attributes)
+
def delete_slice_(self, slice_hrn):
- """
- Remove this slice from all components it was previouly associated with and
- free up the resources it was using.
- """
- self.db.DeleteSliceFromNodes(self.auth, slicename, self.components)
- return 1
+ """
+ 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 = None
+
+ 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 start_slice(self, slice_hrn):
- """
- Stop the slice at plc.
- """
- slicename = hrn_to_plcslicename(slice_hrn)
- slices = self.shell.GetSlices(self.auth, {'name': slicename}, ['slice_id'])
- if not slices:
- raise RecordNotFound(slice_hrn)
- 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
+ """
+ Stop the slice at plc.
+ """
+ # XX need to get the correct credential
+ cred = None
+
+ for hrn in self.aggregates.keys():
+ self.aggregates[hrn].startSlice(cred, slice_hrn)
+ return 1
def stop_slice(self, slice_hrn):
- """
- Stop the slice at plc
- """
- slicename = hrn_to_plcslicename(slice_hrn)
- slices = self.shell.GetSlices(self.auth, {'name': slicename}, ['slice_id'])
- if not slices:
- raise RecordNotFound(slice_hrn)
- 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
+ """
+ Stop the slice at plc
+ """
+ for hrn in self.aggregates.keys():
+ self.aggregates[hrn].startSlice(cred, slice_hrn)
+ return 1
def reset_slice(self, slice_hrn):
- """
- Reset the slice
- """
- slicename = self.hrn_to_plcslicename(slice_hrn)
- return 1
+ """
+ Reset the slice
+ """
+ # XX not yet implemented
+ return 1
def get_policy(self):
- """
- Return the policy of this slice manager.
- """
-
- return self.policy
-
-
+ """
+ Return the policy of this slice manager.
+ """
+
+ return self.policy
+
+
##############################
## Server methods here for now
##############################
def nodes(self):
- return self..get_components()
+ return self.get_components()
def slices(self):
return self.get_slices()
self.server.register_function(self.stop)
self.server.register_function(self.reset)
self.server.register_function(self.policy)
-
+
git://git.onelab.eu / sfa.git / blobdiff