def attach_volume():
"""POST /attach_volume"""
vm_id =str(request.values.get('vm_id'))
volume_id = str(request.values.get('volume_id'))
device_name = str(request.values.get('device_name'))
cloud = str(request.values.get('cloud'))
controller = Controller()
controller.setup_default()
controller.attach_volume(vm_id, volume_id, device_name, cloud)
log('Attached volume %s to vm %s (cloud: %s)' % (volume_id, vm_id, cloud))
return build_response(simplejson.dumps({}))
