MINIO_NOTIFY_AMQP_AUTO_DELETED   (on|off)    auto delete queue when set to 'on', when there are no consumers
MINIO_NOTIFY_AMQP_DELIVERY_MODE  (number)    set to '1' for non-persistent or '2' for persistent queue
MINIO_NOTIFY_AMQP_QUEUE_DIR      (path)      staging dir for undelivered messages e.g. '/home/events'
MINIO_NOTIFY_AMQP_QUEUE_LIMIT    (number)    maximum limit for undelivered messages, defaults to '100000'