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god.rb
Ruby
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rails_root = "/data/github/current"
 
20.times do |num|
God.watch do |w|
w.name = "dj-#{num}"
w.group = 'dj'
w.interval = 30.seconds
w.start = "rake -f #{rails_root}/Rakefile production jobs:work"
 
w.uid = 'git'
w.gid = 'git'
 
# retart if memory gets too high
w.transition(:up, :restart) do |on|
on.condition(:memory_usage) do |c|
c.above = 300.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
end

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