def get_devices():
"""
this is frequently called internally by index.html's javascript
it returns a json dump of all containers and devices
"""
containers_devices = db_session.query(Container.ip_addr, Device.serial_number).all()
return json.dumps(containers_devices)
def get_jsonrpc_server_instance_device(serial_number):
"""
Build jsonrpc server instance by querying to find the container related to
the serial_number
"""
containers_devices = db_session.query(Container.ip_addr, Container.port).filter(Device.serial_number == serial_number).first()
if containers_devices:
rpc_ip_addr = containers_devices[0]
rpc_port = containers_devices[1]
return get_jsonrpc_server_instance(rpc_ip_addr, rpc_port), rpc_ip_addr, rpc_port
return None, None, None
