Php – Ruby on Rails and PHP on Same Apache Web Server

apache-2.2PHPruby-on-railsweb-server

So I am really used to LAMP stacks and have an Apache and PHP setup on my Ubuntu server with about 30 PHP sites. I want to throw a new project up on the site that is built on Ruby on Rails. Is it possible to continue to use Apache and have the RoR project sit right next to all of the other projects in /var/www/?

Also, what's the best way to get RoR installed on a default Ubuntu server install?

Thanks!

Best Answer

Yes, you can with pretty much any Rails app server. In all cases, the Rails app runs in a separate process and the frontend web server (Apache in this case) passes requests through to it. For standalone servers like mongrel and unicorn you run the app server manually and use mod_proxy_http to pass requests through. Passenger lets Apache manage the rails process automatically and use a lightweight internal communication protocol rather than http.

If you're just getting started I'd advise using Passenger; my experience is that other servers are easier for larger clustered deployments.

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Vps – Running Ruby on Rails App on Apache + Passenger == to much memory

You can configure how many Rails processes Apache/passenger spawns. For your size (3 concurrent requests) you should be fine with 2 rails processes:

Set these in your apache config:

PassengerMaxPoolSize 2
PassengerMaxInstancesPerApp 2

The MaxPoolSize determines how many instances can be started maximally, the MaxInstancesPerApp determines how many instances each web-app can have.

You might want to play with:

PassengerPoolIdleTime

to specify how many seconds an instance must be idle before it is unloaded. Default is 300 seconds.

I run pretty high traffic web application with 3 instances without any problems.

Oh and - the Ruby Enterprise Edition helps too.

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Instead of 'copytruncate', these lines worked for me in the logrotate file for my rails app:

  postrotate
    touch /your-rails-directory/tmp/restart.txt
  endscript

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