I type docker attach,but was not work

I was using openwrt docker.and I type docker attach in openwrt tty.but it was not work.am I forgot something -e?or openwrt docker does not support this docker?

Start by reproducing `docker attach` from an OpenWrt terminal using the repository's documented container setup. Check the container startup and interactive settings, then determine whether attachment requires a specific invocation or is unsupported; done means providing a confirmed fix or a clear limitation and workaround.

Written by the indexing model from the issue text.