OG unicorn killer script from github

github_unicorn_killer.rb

#! /usr/bin/env ruby

unicorn_worker_memory_limit = 460_000

loop do
  begin
    # unicorn workers
    #
    # ps output line format:
    # 31580 275444 unicorn_rails worker[15] -c /data/github/current/config/unicorn.rb -E production -D
    # pid ram command

    lines = `ps -e -www -o pid,rss,command | grep '[u]nicorn_rails worker'`.split("\n")
    lines.each do |line|
      parts = line.split(' ')
      if parts[1].to_i > unicorn_worker_memory_limit
        # tell the worker to die after it finishes serving its request
        ::Process.kill('QUIT', parts[0].to_i)
      end
    end
  rescue Object
    # don't die ever once we've tested this
    nil
  end

  sleep 60
end