class BalancerScheduler(object):
def __init__(self):
self.dev_manager = BalancerDeviceManager()
self.algorithm = SchedulingAlgorithm()
def _get_default_device(self, resource):
# no management since it's unknown at the moment
device = {
"name": uuidutils.generate_uuid(),
"type": HAPROXY,
"version": HAPROXY_VERSION,
"management": "",
"tenant_id": resource["tenant_id"],
"subnet_id": resource["subnet_id"],
"status": constants.PENDING_CREATE,
}
return device
def _create_default(self, context, resource):
dev_info = self._get_default_device(resource)
return self.dev_manager.create_device(context, dev_info)
def add_resource_association(self, context, resource):
LOG.debug(_("Going to schedule resource %s"), resource)
devices = self.dev_manager.get_device_list(context)
try:
device = self.algorithm(resource, devices)
except NoValidDevice, e:
LOG.info(_("No valid device was found, "
"creating haproxy vm device"))
# create device object in DB
device = self._create_default(context, resource)
self.dev_manager.add_association(context, device, resource)
return device
def __init__(self):
self.dev_manager = BalancerDeviceManager()
self.algorithm = SchedulingAlgorithm()
