From: "M. Edward (Ed) Borasky" <znmeb@...>
Date: 2007-07-10T11:41:56+09:00
Subject: Re: [ANN] god 0.1.0 released

Tom Werner wrote:
> I'm proud to announce the initial public release of god!
> 
>  http://god.rubyforge.org/
> 
> 
> WHAT IS GOD?
> 
> God is an easy to configure, easy to extend monitoring framework written
> in Ruby.
> 
> Keeping your server processes and tasks running should be a simple part
> of your deployment process. God aims to be the simplest, most powerful
> monitoring application available.
> 
> 
> DISCLAIMER
> 
> God is still very young, I'd love to get feedback and bug reports, but I
> do not yet recommend you use it for mission critical tasks. I personally
> use it in production but then I'm a daring fellow.
> 
> 
> INSTALL
> 
> sudo gem install god
> 
> * note: currently tested only on Redhat Linux and Darwin (won't work on
> Windows)
> 
> 
> FEATURES
> 
> * Config file is written in Ruby
> * Easily write your own custom conditions in Ruby
> * Supports both poll and event based conditions
> * Different poll conditions can have different intervals
> 
> 
> EXAMPLE
> 
> The easiest way to understand how god will make your life better is by
> looking at a sample config file. The following configuration file is
> what I use at gravatar.com to keep the mongrels running:
> 
> # file:      gravatar.god
> # run with:  god start -c /path/to/gravatar.god
> #
> # This is the actual config file used to keep the mongrels of
> # gravatar.com running.
> 
> RAILS_ROOT = "/var/www/gravatar2/current"
> 
> God.meddle do |god|
>  %w{8200 8201 8202}.each do |port|
>    god.watch do |w|
>      w.name = "gravatar2-mongrel-#{port}"
>      w.interval = 30 # seconds
>      w.start = "mongrel_rails cluster::start --only #{port} \
>        -C #{RAILS_ROOT}/config/mongrel_cluster.yml"
>      w.stop = "mongrel_rails cluster::stop --only #{port} \
>        -C #{RAILS_ROOT}/config/mongrel_cluster.yml"
>      w.grace = 10 # seconds
>           pid_file = File.join(RAILS_ROOT, "log/mongrel.#{port}.pid")
>           w.behavior(:clean_pid_file) do |b|
>        b.pid_file = pid_file
>      end
> 
>      w.start_if do |start|
>        start.condition(:process_not_running) do |c|
>          c.interval = 5 # seconds
>          c.pid_file = pid_file
>        end
>      end
>           w.restart_if do |restart|
>        restart.condition(:memory_usage) do |c|
>          c.pid_file = pid_file
>          c.above = (150 * 1024) # 150mb
>          c.times = [3, 5] # 3 out of 5 intervals
>        end
>             restart.condition(:cpu_usage) do |c|
>          c.pid_file = pid_file
>          c.above = 50 # percent
>          c.times = 5
>        end
>      end
>    end
>  end
> end
> 
> 
> DOCS
> 
> Detailed documentation is available at http://god.rubyforge.org/
> 
> 
> CHANGES
> 
> == 0.1.0 / 2007-07-07
> 
> * 1 major enhancement
>  * Birthday!
> 
> 
> AUTHOR
> 
> Tom Preston-Werner
> 
> 

Interesting ... the Gang of Four say you shouldn't have a "god" class,
but you went and did it anyway. :)