I believe what you're looking for is a multicore setup. By default that is how sunspot runs now, except that the cores are for the different rails environments. See https://github.com/sunspot/sunspot/issues/115 for that change. Following that template I think you need to find one place to keep the config files and data directories, and then update them to list all the cores that it will run. This post at http://eemglobal.com/2014/07/setup-rails-4-with-sunspot-gem-and-solr-4-7-in-production-environment-on-ubuntu-14/ shows an alternate means, where you add the cores using the solr admin interface and then update the configuration files to match.