You can do that too. But that is a very different setup. If you build "single application" containers, then the container will stop if the application stops, and you can run supervisord from the host, configured to bring up the container.
If you build full containers, with a single application, you probably still want supervisord inside each container. EDIT: This is because the container will remain up as long as whatever is specified as the "init" of the container stays up, so in this case your app can die without bringing down the container, and something needs to be able to detect it.
If you build full containers, with a single application, you probably still want supervisord inside each container. EDIT: This is because the container will remain up as long as whatever is specified as the "init" of the container stays up, so in this case your app can die without bringing down the container, and something needs to be able to detect it.