def acquire_gateway_ip(self, host):
ipnum = rds.spop(self.gatekey)
if not ipnum:
return
vg = VLanGateway.create(ipnum, self.id, host.id)
if not vg:
rds.sadd(self.gatekey, ipnum)
return
return vg
def acquire_ip(self):
"""take an IP from network, return an IP object"""
ipnum = rds.spop(self.storekey)
return ipnum and IP.create(ipnum, self) or None
