# http://michaelvanrooijen.com/articles/2011/06/01-more-concurrency-on-a-single-heroku-dyno-with-the-new-celadon-cedar-stack/ worker_processes Integer(ENV.fetch('WEB_CONCURRENCY')) # amount of unicorn workers to spin up timeout 30 # restarts workers that hang for 30 seconds tmp_dir = ENV.fetch("tmp_dir", "/tmp") listen File.expand_path("nginx.socket", tmp_dir), backlog: 1024 require 'fileutils' before_fork do |server, worker| # preload travis so we can have copy on write require 'travis/api/app' # signal to nginx we're ready FileUtils.touch("#{tmp_dir}/app-initialized") end