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