ARGS:
MINIO_NOTIFY_REDIS_ENABLE*      (on|off)             enable notify_redis target, default is 'off'
MINIO_NOTIFY_REDIS_KEY*         (string)             Redis key to store/update events, key is auto-created
MINIO_NOTIFY_REDIS_FORMAT*      (namespace*|access)  'namespace' reflects current bucket/object list and 'access' reflects a journal of object operations, defaults to 'namespace'
MINIO_NOTIFY_REDIS_PASSWORD     (string)             Redis server password