def __init__(self):
#Start INIHandler
log.info("INIHandler - Initializing...")
self.inihandler = IniHandler()
log.info("INIHandler - Ready")
#Start ERCS Topology
#TODO: choose the core switches
log.info("ERCS Topology - Initializing...")
self.topology = Topology(self.inihandler)
log.info("ERCS Topology - Ready")
#Start ERCS Statistics
log.info("ERCS Stats - Initializing...")
self.stats = Stats(self.inihandler)
log.info("ERCS Stats - Ready")
#Start ERCS Rules
#TODO: Automatically adapt the rules in case a switch fails
#TODO: Supernetting in the agg and core switches
log.info("ERCS Rules - Initializing...")
self.rules = Rules({}, {}, Rules.SUPERNET, self.topology)
log.info("ERCS Rules - Ready")
#Start the ERCS VM Request Receiver
#TODO: Send confirmation of VM Request received and VM Installed so later can send traffic
log.info("ERCS VM Receiver - Initializing...")
self.vmreceiver = VMReceiver(self.inihandler)
log.info("ERCS VM Receiver - Ready")
#Initialize the Xen Communicator
log.info("Xen Communicator - Initializing...")
self.xencommunicator = XenCommunicator(self.inihandler)
log.info("Xen Communicator - Ready")
#Start the ERCS VM Allocator
#If you want to use xen instead of simulating the allocation add self.xencommunicator in the
#end of the arguments
log.info("ERCS VM Manager - Initializing...")
self.vmmanager = VMManager(self.topology, self.stats, self.rules, self.vmreceiver,
self.inihandler)
log.info("ERCS VM Manager - Ready")
#run the ERCS VM Request Receicer
#This thread closes when the main thread closes
self.vmreceiver.daemon = True
self.vmreceiver.start()
#Start the ERCS Stats Exporter
log.info("ERCS Stats Exporter - Initializing...")
self.statsexporter = ERCSStatsExport(self.inihandler, self.topology, self.stats, self.vmmanager)
log.info("ERCS Stats Exporter - Ready")
#Start Dhcp server for vms
#get args for dhcpd
args = self.getArgsforDHCPD(self.inihandler)
import pox.misc.dhcpd
pox.misc.dhcpd.launch(network=args[0],dns=args[1],ip=args[2])
class ERCS():
def __init__(self):
#Start INIHandler
log.info("INIHandler - Initializing...")
self.inihandler = IniHandler()
log.info("INIHandler - Ready")
#Start ERCS Topology
#TODO: choose the core switches
log.info("ERCS Topology - Initializing...")
self.topology = Topology(self.inihandler)
log.info("ERCS Topology - Ready")
#Start ERCS Statistics
log.info("ERCS Stats - Initializing...")
self.stats = Stats(self.inihandler)
log.info("ERCS Stats - Ready")
#Start ERCS Rules
#TODO: Automatically adapt the rules in case a switch fails
#TODO: Supernetting in the agg and core switches
log.info("ERCS Rules - Initializing...")
self.rules = Rules({}, {}, Rules.SUPERNET, self.topology)
log.info("ERCS Rules - Ready")
#Start the ERCS VM Request Receiver
#TODO: Send confirmation of VM Request received and VM Installed so later can send traffic
log.info("ERCS VM Receiver - Initializing...")
self.vmreceiver = VMReceiver(self.inihandler)
log.info("ERCS VM Receiver - Ready")
#Initialize the Xen Communicator
log.info("Xen Communicator - Initializing...")
self.xencommunicator = XenCommunicator(self.inihandler)
log.info("Xen Communicator - Ready")
#Start the ERCS VM Allocator
#If you want to use xen instead of simulating the allocation add self.xencommunicator in the
#end of the arguments
log.info("ERCS VM Manager - Initializing...")
self.vmmanager = VMManager(self.topology, self.stats, self.rules, self.vmreceiver,
self.inihandler)
log.info("ERCS VM Manager - Ready")
#run the ERCS VM Request Receicer
#This thread closes when the main thread closes
self.vmreceiver.daemon = True
self.vmreceiver.start()
#Start the ERCS Stats Exporter
log.info("ERCS Stats Exporter - Initializing...")
self.statsexporter = ERCSStatsExport(self.inihandler, self.topology, self.stats, self.vmmanager)
log.info("ERCS Stats Exporter - Ready")
#Start Dhcp server for vms
#get args for dhcpd
args = self.getArgsforDHCPD(self.inihandler)
import pox.misc.dhcpd
pox.misc.dhcpd.launch(network=args[0],dns=args[1],ip=args[2])
def getArgsforDHCPD(self, inithandler):
'''
Get values from the ini file
'''
args = list()
try :
section = "hostippool"
key = "vm"
args.append(inithandler.read_ini_value(section, key))
key = "dns"
args.append(inithandler.read_ini_value(section, key))
key = "dhcpip"
args.append(inithandler.read_ini_value(section, key))
print("%s,%s,%s",args[0],args[1],args[2])
except Exception, e:
log.error("INI File doesn't contain expected values")
log.error(e)
os._exit(0)
return args
