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How can I run JRuby on Rails from Java?

I need to run a copy of a Rails application from Java. I would prefer a lightweight HTTP server as our installations will have a very small user base (1-10, 10 is a huge installation).

My project that I was aiming for is for a single process, with a web interface written in Rails - running in JRuby on the background thread of the main server written in Java.

Any tips for running Rails this way? I really don't need a separate Tomcat server.

Thank!

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You can simply create war files for each installation (google for "warbler") and serve them through a single tomcat, or use a jetty for each installation (which might be slightly lighter than tomcat, depending on your configuration).



As far as I know, you can even run your script / server through jruby (which runs webrick through jruby).

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The easiest way that comes to mind is to make a shell call like

jruby script/server


... from you Java application.

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