gistfile4.txt

redis.god

%w{6379}.each do |port|
  God.watch do |w|
    w.name          = 'redis'
    w.interval      = 30.seconds
    w.start         = "/etc/init.d/redis start"
    w.stop          = "/etc/init.d/redis stop"
    w.restart       = "/etc/init.d/redis restart"
    w.start_grace   = 10.seconds
    w.restart_grace = 10.seconds

    w.start_if do |start|
      start.condition(:process_running) do |c|
        c.interval = 5.seconds
        c.running = false
      end
    end
  end
end

resque-web.god

God.watch do |w|
  w.name          = 'resque-web'
  w.interval      = 30.seconds
  w.env           = { 'PATH' => '/opt/ruby-enterprise/bin:$PATH',
                      'HOME' => '/home/deploy' }
  w.uid           = 'deploy'                    
  w.start         = "resque-web -FL -p 5678 /etc/resque/resque_web.rb"

  # restart if memory gets too high
  w.transition(:up, :restart) do |on|
    on.condition(:memory_usage) do |c|
      c.above = 350.megabytes
      c.times = 2
    end
  end

  # determine the state on startup
  w.transition(:init, { true => :up, false => :start }) do |on|
    on.condition(:process_running) do |c|
      c.running = true
    end
  end

  # determine when process has finished starting
  w.transition([:start, :restart], :up) do |on|
    on.condition(:process_running) do |c|
      c.running = true
      c.interval = 5.seconds
    end

    # failsafe
    on.condition(:tries) do |c|
      c.times = 5
      c.transition = :start
      c.interval = 5.seconds
    end
  end

  # start if process is not running
  w.transition(:up, :start) do |on|
    on.condition(:process_running) do |c|
      c.running = false
    end
  end
end

resque.god

God.watch do |w|
  w.name          = 'resque'
  w.interval      = 30.seconds
  w.env           = { 'PATH'      => '/opt/ruby-enterprise/bin:$PATH',
                      'RAILS_ENV' => 'production',
                      'QUEUE'     => '*' }
  w.uid           = 'deploy'
  w.dir           = '/home/deploy/current'
  w.start         = "rake environment resque:work"
  w.start_grace   = 10.seconds

  # restart if memory gets too high
  w.transition(:up, :restart) do |on|
    on.condition(:memory_usage) do |c|
      c.above = 350.megabytes
      c.times = 2
    end
  end

  # determine the state on startup
  w.transition(:init, { true => :up, false => :start }) do |on|
    on.condition(:process_running) do |c|
      c.running = true
    end
  end

  # determine when process has finished starting
  w.transition([:start, :restart], :up) do |on|
    on.condition(:process_running) do |c|
      c.running = true
      c.interval = 5.seconds
    end

    # failsafe
    on.condition(:tries) do |c|
      c.times = 5
      c.transition = :start
      c.interval = 5.seconds
    end
  end

  # start if process is not running
  w.transition(:up, :start) do |on|
    on.condition(:process_running) do |c|
      c.running = false
    end
  end
end