unicorn simple cgi without rails

[nomad Bellcam]

hello,

i recently set up a new server upon which i installed nginx to try it out (and 
which i have been quite happy with since).

my website is mostly static with some small cgi areas, and i like to use ruby 
for the cgi. when i did my research for the best ruby cgi handler for nginx, 
unicorn figured prominently in my results, and so i became interested in trying 
it. i spent some time reading up on how to configure and use it but have been 
unsuccessful implementing, mostly i believe due to the fact that i do not have 
a rails framework installed nor a legitimate rackup config.ru

my question is this: does it make any sense at all to use unicorn as a ruby cgi 
handler if i am not also using rails? and if there is indeed some sense in this 
idea, how might i go about it? is there a simple rackup file that would work 
for a configuration such as this? i couldn't find any information on rackup 
configs of this sort, and not being familiar with rails the terrain simply 
became to steep at this point to continue without some guidance or assurances.

thank you for your consideration.

sincerely,
nomad 
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Re: unicorn simple cgi without rails

[Eric Wong]

nomad Bellcam damonswir...@hotmail.com wrote:
 my website is mostly static with some small cgi areas, and i like to
 use ruby for the cgi. when i did my research for the best ruby cgi
 handler for nginx, unicorn figured prominently in my results, and so i
 became interested in trying it. i spent some time reading up on how to
 configure and use it but have been unsuccessful implementing, mostly i
 believe due to the fact that i do not have a rails framework installed
 nor a legitimate rackup config.ru

 my question is this: does it make any sense at all to use unicorn as a
 ruby cgi handler if i am not also using rails?

Yes, but perhaps Rainbows! (a sister project of unicorn) is better
http://rainbows.rubyforge.org/ since it has less overhead when
waiting for a big CGI to run.  If performance/scalability isn't
an issue, then unicorn is fine for CGI.  unicorn is much easier
to configure as there's less documentation to read :)

 and if there is indeed
 some sense in this idea, how might i go about it? is there a simple
 rackup file that would work for a configuration such as this? i
 couldn't find any information on rackup configs of this sort, and not
 being familiar with rails the terrain simply became to steep at this
 point to continue without some guidance or assurances.

You can check out rack-legacy git://github.com/eric1234/rack-legacy

I've never used rack-legacy, as I've been running the bundled
Unicorn::App::ExecCGI before with cgit http://git.zx2c4.com/cgit/.
I haven't used it on anything but cgit, however.

I use the following for serving http://bogomips.org/unicorn.git

(I run this with Rainbows!, but it's fine with unicorn, too)
 config.ru 
require unicorn/app/exec_cgi
map(http://bogomips.org/;) do
  repo = /path/to/my/git/repos/on/bogomips.org
  cgit = Unicorn::App::ExecCgi.new(#{repo}/cgit.cgi)

  # Attempts static file serving with Rack::File, first.
  # Fall back to calling cgit if the URL matches .git
  # Otherwise, just return a 404
  r404 = [ 404, [ %w(Content-Length 0), %w(Content-Type text/plain) ], [] ]
  cgit_wrap = lambda { |e| e[PATH_INFO] =~ %r{\.git} ? cgit.call(e) : r404 }
  run Rack::Cascade.new([ Rack::File.new(repo), cgit_wrap ])
end
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