Why is there a separate "unicorn_rails" for Rails apps?

Posted by Ben Lee on Server Fault See other posts from Server Fault or by Ben Lee
Published on 2012-06-11T16:39:28Z Indexed on 2012/06/11 16:41 UTC
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Filed under:

ruby-on-rails

|

rack

|

unicorn

According to the Unicorn docs, there are different binaries for Rails apps and other Rack apps:

non-Rails Rack applications

In APP_ROOT, run:

    unicorn

for Rails applications (should work for all 1.2 or later versions)

In RAILS_ROOT, run:

    unicorn_rails

They seem to also take the same command-line parameters. But Rails is built on top of rack, so I don't understand why this dichotomy is required. Is there any reason you can't just use unicorn for Rails apps?

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