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()
def refresh_components(self):
"""
Update the cached list of nodes and save in 4 differnt formats
- (rspec, dns, ip, hrn)
+ (rspec, dns, ip)
"""
- node_details = {}
# 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 ifspec info to get ip's
+
+ # 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'])
- # resolve component hostnames
- nodes = self.shell.GetNodes(self.auth, {}, ['hostname', 'site_id'])
-
- # resolve site login_bases
- site_ids = [node['site_id'] for node in nodes]
- sites = self.shell.GetSites(self.auth, site_ids, ['site_id', 'login_base'])
- site_dict = {}
- for site in sites:
- site_dict[site['site_id']] = site['login_base']
-
- # filter nodes according to policy
- # convert plc names to geni hrn
- nodedict = {}
- for node in nodes:
- node_hrn = self.hostname_to_hrn(site_dict[node['site_id']], node['hostname'])
- # apply policy.
- # Do not allow nodes found in blacklist, only allow nodes found in whitelist
- if self.policy['whitelist'] and node_hrn not in self.polciy['whitelist']:
- continue
- if self.policy['blacklist'] and node_hrn in self.policy['blacklist']:
- continue
- nodedict[node_hrn] = node['hostname']
+ # 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['hrn'] = nodedict.keys()
- node_details['dns'] = nodedict.values()
node_details['ip'] = ips
+ node_details['dns'] = hostnames
# save state
self.nodes = SimpleStorage(self.nodes.db_filename, node_details)
self.nodes.write()
self.policy.load()
- def getComponents(self, type = 'rspec'):
+ def getNodes(self, format = 'rspec'):
"""
Return a list of components at this aggregate.
"""
- valid_types = ['rspec', 'hrn', 'dns', 'ip']
- if type not in valid_types:
- raise Exception, "Invalid type specified, must be one of the following: %s" \
- % ", ".join(valid_types)
+ 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.refresh_components()
elif now < self.threshold and not self.nodes.keys():
self.load_components()
- return self.nodes[type]
+ return self.nodes[format]
- def getSlices(self, hrn):
+ def getSlices(self):
"""
Return a list of instnatiated managed by this slice manager.
"""
- # XX list only the slices at the specfied hrn
- return dict(self.slices)
+ 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):
"""
node_ids = slices[0]['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:
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 = []):
"""
# XX fix rights, should be function name defined in
# privilege_table (from util/rights.py)
- def list_components(self, cred):
+ def list_nodes(self, cred):
self.decode_authentication(cred, 'listnodes')
- return self.getComponents()
+ return self.getNodes()
- def list_slices(self, cred, hrn):
+ def list_slices(self, cred):
self.decode_authentication(cred, 'listslices')
- return self.getSlices(hrn)
+ return self.getSlices()
def get_resources(self, cred, hrn):
self.decode_authentication(cred, 'listnodes')
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()
GeniServer.register_functions(self)
# Aggregate interface methods
- self.server.register_function(self.list_components)
+ 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)
git://git.onelab.eu / sfa.git / blobdiff