| """ |
| Distributed Cloud Emulator (dcemulator) |
| (c) 2015 by Manuel Peuster <manuel.peuster@upb.de> |
| """ |
| import logging |
| |
| |
| DCDPID_BASE = 1000 # start of switch dpid's used for data center switches |
| |
| |
| class Datacenter(object): |
| """ |
| Represents a logical data center to which compute resources |
| (Docker containers) can be added at runtime. |
| """ |
| |
| def __init__(self, name): |
| self.net = None # DCNetwork to which we belong |
| self.name = name |
| self.switch = None # first prototype assumes one "bigswitch" per DC |
| |
| def _get_next_dc_dpid(self): |
| global DCDPID_BASE |
| DCDPID_BASE += 1 |
| return DCDPID_BASE |
| |
| def create(self): |
| """ |
| Each data center is represented by a single switch to which |
| compute resources can be connected at run time. |
| |
| TODO: This will be changes in the future to support multiple networks |
| per data center |
| """ |
| self.switch = self.net.mnet.addSwitch( |
| "%s.s1" % self.name, dpid=hex(self._get_next_dc_dpid())[2:]) |
| logging.debug("created data center switch: %s" % str(self.switch)) |
| |
| def start(self): |
| pass |
| |
| def addCompute(self): |
| pass |
| |
| def removeCompute(self): |
| pass |