Make FnordMetric::Web a true rack app

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Issue by KieranP Wednesday Sep 26, 2012 at 10:02 GMT Originally opened as https://github.com/paulasmuth/fnordmetric/issues/98

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I'd like to do thin -C fnord.yml fnord.rb to start the server daemonized. The current implementation isn't rackup friendly, so in production, I'm having to start a screen process and run the ruby file in that, which isn't very friendly.

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Comment by skorfmann Friday Jan 18, 2013 at 13:58 GMT

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Have you made any progress on this? I'll also have the need of some production environment in a bit and I'm still not sure about the best approach.

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Comment by axsuul Saturday Feb 16, 2013 at 02:49 GMT

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Same here.

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Comment by skorfmann Saturday Feb 16, 2013 at 03:01 GMT

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Just deployed this stuff using capistrano with a rackup file utilising thin behind ngnix (communicating via unix-sockets) and separate worker processes. Will write about it in more detail once it's completely done and working.

But basically it boils down to this:

Extract the relevant parts from https://github.com/paulasmuth/fnordmetric/blob/master/fnordmetric-core/lib/fnordmetric/web/web.rb to your own config.ru

Wrap your worker processes with something like https://github.com/ghazel/daemons

We are not running acceptors at the moment.

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Comment by benschwarz Wednesday May 22, 2013 at 03:40 GMT

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@skorfmann - Care to share your config.ru?

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Comment by skorfmann Wednesday May 22, 2013 at 03:51 GMT

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@benschwarz here you go:

#!/usr/bin/env ruby

$: << File.expand_path(File.dirname(__FILE__))

require 'app'

use Rack::CommonLogger
use Rack::ShowExceptions

map "/stream" do
  run FnordMetric::WebSocket.new
end

map "/" do
  run FnordMetric::App.new({})
end

"app.rb" is your custom code for fnordmetric

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Comment by skorfmann Wednesday May 22, 2013 at 03:53 GMT

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I've also written about a production deployment of this stuff: http://skorfmann.com/blog/2013/03/25/the-bumpy-road-to-fnordmetric/