How do I run WEBrick as a daemon?

ruby-talk
1

Hi

I'm trying to make a simple web server to provide decryption to a C# app that can't access OpenSSL libraries. It has to run on a FreeBSD server so I need to make it run as a daemon, but I can't work out how.

The skeleton of the code is below. I've noticed there is a WEBrick::Daemon class but I can't figure out how to use it. I've tried using script/server from Rails as a template but it's pretty complex. Can anyone offer some hints?

Thanks in advance
Ashley

#!/usr/bin/env ruby

class PasswordServer
   include WEBrick

   def initialize(port)
     decrypter_proc = lambda { |request, response|
       # blah
     }

     decrypt = HTTPServlet::ProcHandler.new(decrypter_proc)

     @server = HTTPServer.new(:Port => port)
     @server.mount("/decrypt", decrypt)
   end

   def start
     trap("INT") { server.shutdown }
     trap("TERM") { server.shutdown }
     server.start
   end
end

if $0 == __FILE__
   PasswordServer.new(2999).start
end

2

*blows dust off of gambit*

We just pass a become_daemon flag in our subclass of
Webrick::HTTPServer, and then use this to determine whether or not to
start the Daemon. There is some extra stuff in there, but I figured
it'd be useful to see it in context.

    def initialize( game_class,
                  port = 80, html_dir = "html", become_daemon = false )
      super(:Port => port)
      
      @html_dir = File.join(File.expand_path(File.dirname($0)), html_dir)
      self.class.const_set(:SERVER, self)
      @server_message = nil

      @game_class = game_class
      @games = Hash.new
      @players = Hash.new
      
      WEBrick::Daemon.start if become_daemon
      
      mount_proc("/") { |req, resp| serve_file(req, resp, req.path) }
      mount_proc("/view") { |req, resp| serve_view(req, resp) }
      mount_proc("/event") { |req, resp| serve_event(req, resp) }
      mount_proc("/server") { |req, resp| serve_server_event(req, resp) }

      ['INT', 'TERM'].each { |signal| trap(signal) { shutdown } }
    end

···

On 12/13/06, Ashley Moran <work@ashleymoran.me.uk> wrote:

The skeleton of the code is below. I've noticed there is a
WEBrick::Daemon class but I can't figure out how to use it. I've
tried using script/server from Rails as a template but it's pretty
complex. Can anyone offer some hints?

3

Here is the whole server, btw. http://tinyurl.com/yjet4l

Note, bug JEG2 if you have questions, aside from light debugging, I've
only worked with the gambit server externally.

···

On 12/13/06, Gregory Brown <gregory.t.brown@gmail.com> wrote:

On 12/13/06, Ashley Moran <work@ashleymoran.me.uk> wrote:

> The skeleton of the code is below. I've noticed there is a
> WEBrick::Daemon class but I can't figure out how to use it. I've
> tried using script/server from Rails as a template but it's pretty
> complex. Can anyone offer some hints?

*blows dust off of gambit*

We just pass a become_daemon flag in our subclass of
Webrick::HTTPServer, and then use this to determine whether or not to
start the Daemon. There is some extra stuff in there, but I figured
it'd be useful to see it in context.

4

Cheers! I've extracted the important bits out of your code and it's working fine. Thanks for replying so quick.

Ashley

···

On 13 Dec 2006, at 14:46, Gregory Brown wrote:

Here is the whole server, btw. http://tinyurl.com/yjet4l

Note, bug JEG2 if you have questions, aside from light debugging, I've
only worked with the gambit server externally.

5

Great to hear. Best of luck!
-greg

···

On 12/13/06, Ashley Moran <work@ashleymoran.me.uk> wrote:

Cheers! I've extracted the important bits out of your code and it's
working fine. Thanks for replying so quick.