examples/gravatar.god

   1 # This is the actual config file used to keep the mongrels of
   2 # gravatar.com running.
   3
   4 RAILS_ROOT = "/var/www/gravatar2/current"
   5
   6 God.meddle do |god|
   7   god.interval = 30 # seconds
   8
   9   %w{8200 8201 8202}.each do |port|
  10     god.watch do |w|
  11       w.name = "gravatar2-mongrel-#{port}"
  12       w.start = "mongrel_rails cluster::start --only #{port} -c #{RAILS_ROOT}"
  13       w.stop = "mongrel_rails cluster::stop --only #{port} -c #{RAILS_ROOT}"
  14
  15       pid_file = File.join(RAILS_ROOT, "log/mongrel.#{port}.pid")
  16
  17       w.behavior(:clean_pid_file) do |b|
  18         b.pid_file = pid_file
  19       end
  20
  21       w.start_if do |start|
  22         start.condition(:process_not_running) do |c|
  23           c.pid_file = pid_file
  24         end
  25       end
  26
  27       w.restart_if do |restart|
  28         restart.condition(:memory_usage) do |c|
  29           c.pid_file = pid_file
  30           c.above = (150 * 1024) # 150mb
  31           c.times = [3, 5] # 3 out of 5 intervals
  32         end
  33
  34         restart.condition(:cpu_usage) do |c|
  35           c.pid_file = pid_file
  36           c.above = 50 # percent
  37           c.times = 5
  38         end
  39       end
  40     end
  41   end
  42 end