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
class SliceMgr(GeniServer):
- hrn = None
- key_file = None
- cert_file = None
- components_file = None
- slices_file = None
- components_ttl = None
- components = []
- slices = []
- policy = {}
- timestamp = None
- threshold = None
- shell = None
- aggregates = {}
-
##
# 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"):
- GeniServer.__init__(ip, port, key_file, cert_file)
- 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
- an xmlrpc connection to each. If any info is invalid, skip it.
- """
- 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)
-
-
- 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.
- """
- 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
-
- 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()
-
- 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()
-
- 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
-
- 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.
- """
- print "writing slices"
- f = open(self.slices_file, 'w')
- f.write(str(self.slices))
- f.close()
-
-
- 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
-
-
- 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
-
- 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
-
- 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
-
- 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
-
- 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
-
- 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
-
- def reset_slice(self, slice_hrn):
- """
- Reset the slice
- """
- slicename = self.hrn_to_plcslicename(slice_hrn)
- return 1
-
- def get_policy(self):
- """
- Return the policy of this slice manager.
- """
-
- return self.policy
-
-
-
-##############################
-## Server methods here for now
-##############################
-
- def nodes(self):
- return self.get_components()
-
- def slices(self):
- return self.get_slices()
-
- def resources(self, cred, hrn):
- self.decode_authentication(cred, 'info')
- self.verify_object_belongs_to_me(hrn)
-
- return self.get_resources(hrn)
-
- def create(self, cred, hrn, rspec):
- self.decode_authentication(cred, 'embed')
- self.verify_object_belongs_to_me(hrn, rspec)
- return self.create(hrn)
-
- def delete(self, cred, hrn):
- self.decode_authentication(cred, 'embed')
- self.verify_object_belongs_to_me(hrn)
- return self.delete_slice(hrn)
-
- def start(self, cred, hrn):
- self.decode_authentication(cred, 'control')
- return self.start(hrn)
-
- def stop(self, cred, hrn):
- self.decode_authentication(cred, 'control')
- return self.stop(hrn)
-
- def reset(self, cred, hrn):
- self.decode_authentication(cred, 'control')
- return self.reset(hrn)
-
- def policy(self, cred):
- self.decode_authentication(cred, 'info')
- return self.get_policy()
-
- def register_functions(self):
- GeniServer.register_functions(self)
-
- # Aggregate interface methods
- self.server.register_function(self.components)
- self.server.register_function(self.slices)
- self.server.register_function(self.resources)
- self.server.register_function(self.create)
- self.server.register_function(self.delete)
- self.server.register_function(self.start)
- self.server.register_function(self.stop)
- self.server.register_function(self.reset)
- self.server.register_function(self.policy)
-
+ 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 = 'slicemgr'
git://git.onelab.eu / sfa.git / blobdiff