# App.config file in a rails app **URL:** \ **Category:** IronRuby\ **Created:** [April 27, 2010, 3:46pm UTC](https://www.ruby-forum.com/t/app-config-file-in-a-rails-app/187666 "2010-04-27T15:46:07Z")\ **Posts on this page:** 5\ **Page:** 1
**Author:** ![Chris\_Ortman](https://www.ruby-forum.com/letter_avatar_proxy/v4/letter/c/779978/32.png) [@Chris\_Ortman](https://www.ruby-forum.com/u/Chris_Ortman)\ **Post date:** [April 27, 2010, 3:46pm UTC](https://www.ruby-forum.com/t/app-config-file-in-a-rails-app/187666/1 "2010-04-27T15:46:07Z")
I am playing around with ir + rails and using it in front of a bunch of existing .NET code. The .NET code really really wants a couple of settings in When i run via script/server though the app.config file is ir.exe.config (AppDomain.Current.SetupInformation.ConfigurationFile)… is there a way to override what config file is loaded? Thanks ---
**Author:** ![Chris\_Ortman](https://www.ruby-forum.com/letter_avatar_proxy/v4/letter/c/779978/32.png) [@Chris\_Ortman](https://www.ruby-forum.com/u/Chris_Ortman)\ **Post date:** [April 27, 2010, 7:55pm UTC](https://www.ruby-forum.com/t/app-config-file-in-a-rails-app/187666/2 "2010-04-27T19:55:00Z")
A couple of options here. 1. ``` Use/create a .NET executable with app.config file. One option is ``` to copy ir.exe to the root directory of your app and add ir.exe.config with appSettings that you need. Don’t forget to change Ruby library paths in that ir.exe.config file. You’ll also need to copy the rest of the assemblies from IronRuby bin directory to the same directory as ir.exe (or some subdirectory that you specify in element of ir.exe.config, see [\ Element | Microsoft Learn](http://msdn.microsoft.com/en-us/library/823z9h8w(VS.80).aspx)) or to the GAC (using gacutil.exe: [Global Assembly Cache Tool (Gacutil.exe) | Microsoft Learn](http://msdn.microsoft.com/en-us/library/ex0ss12c(VS.80).aspx)). 1. ``` Create an AppDomain that is set up to use the right config file: ``` [AppDomainSetup.ConfigurationFile Property (System) | Microsoft Learn](http://msdn.microsoft.com/en-us/library/system.appdomainsetup.configurationfile(v=VS.100).aspx). Then launch the entire rails application (script/server) in that AppDomain. Tomas From: removed\_email\_address@domain.invalid [[mailto:removed\_email\_address@domain.invalid](mailto:removed_email_address@domain.invalid)] On Behalf Of Chris Ortman Sent: Tuesday, April 27, 2010 6:45 AM To: removed\_email\_address@domain.invalid Subject: [Ironruby-core] app.config file in a rails app I am playing around with ir + rails and using it in front of a bunch of existing .NET code. The .NET code really really wants a couple of settings in When i run via script/server though the app.config file is ir.exe.config (AppDomain.Current.SetupInformation.ConfigurationFile)… is there a way to override what config file is loaded? Thanks ---
**Author:** ![Chris\_Ortman](https://www.ruby-forum.com/letter_avatar_proxy/v4/letter/c/779978/32.png) [@Chris\_Ortman](https://www.ruby-forum.com/u/Chris_Ortman)\ **Post date:** [April 27, 2010, 8:36pm UTC](https://www.ruby-forum.com/t/app-config-file-in-a-rails-app/187666/3 "2010-04-27T20:36:35Z")
Here’s a better link: [http://ironruby.net/Documentation/Real\_Ruby\_Applications/Rails#webserver-production](http://ironruby.net/Documentation/Real_Ruby_Applications/Rails#webserver-production) … it’ll be where other info about deploying Rails will be, and now has a screencast showing how to build IronRuby.Rack. ~js From: Jimmy S. Sent: Tuesday, April 27, 2010 11:34 AM To: removed\_email\_address@domain.invalid Subject: RE: [Ironruby-core] app.config file in a rails app You could do that, but is your eventual goal to actually deploy the app? If so I’d suggest using IronRuby.Rack ([http://github.com/ironruby/ironruby/tree/master/Merlin/Main/Hosts/IronRuby.Rack](http://github.com/ironruby/ironruby/tree/master/Merlin/Main/Hosts/IronRuby.Rack)) which lets you run Rails on [ASP.NET](http://ASP.NET) webservers (IIS, for example). It requires that you have a web.config in your application, so you could put settings in there. From: removed\_email\_address@domain.invalid [[mailto:removed\_email\_address@domain.invalid](mailto:removed_email_address@domain.invalid)] On Behalf Of Tomas M. Sent: Tuesday, April 27, 2010 10:53 AM To: removed\_email\_address@domain.invalid Subject: Re: [Ironruby-core] app.config file in a rails app A couple of options here. 1. ``` Use/create a .NET executable with app.config file. One option is ``` to copy ir.exe to the root directory of your app and add ir.exe.config with appSettings that you need. Don’t forget to change Ruby library paths in that ir.exe.config file. You’ll also need to copy the rest of the assemblies from IronRuby bin directory to the same directory as ir.exe (or some subdirectory that you specify in element of ir.exe.config, see [\ Element | Microsoft Learn](http://msdn.microsoft.com/en-us/library/823z9h8w(VS.80).aspx)) or to the GAC (using gacutil.exe: [Global Assembly Cache Tool (Gacutil.exe) | Microsoft Learn](http://msdn.microsoft.com/en-us/library/ex0ss12c(VS.80).aspx)). 1. ``` Create an AppDomain that is set up to use the right config file: ``` [AppDomainSetup.ConfigurationFile Property (System) | Microsoft Learn](http://msdn.microsoft.com/en-us/library/system.appdomainsetup.configurationfile(v=VS.100).aspx). Then launch the entire rails application (script/server) in that AppDomain. Tomas From: removed\_email\_address@domain.invalid [[mailto:removed\_email\_address@domain.invalid](mailto:removed_email_address@domain.invalid)] On Behalf Of Chris Ortman Sent: Tuesday, April 27, 2010 6:45 AM To: removed\_email\_address@domain.invalid Subject: [Ironruby-core] app.config file in a rails app I am playing around with ir + rails and using it in front of a bunch of existing .NET code. The .NET code really really wants a couple of settings in When i run via script/server though the app.config file is ir.exe.config (AppDomain.Current.SetupInformation.ConfigurationFile)… is there a way to override what config file is loaded? Thanks ---
**Author:** ![Chris\_Ortman](https://www.ruby-forum.com/letter_avatar_proxy/v4/letter/c/779978/32.png) [@Chris\_Ortman](https://www.ruby-forum.com/u/Chris_Ortman)\ **Post date:** [April 29, 2010, 6:31pm UTC](https://www.ruby-forum.com/t/app-config-file-in-a-rails-app/187666/4 "2010-04-29T18:31:04Z")
I went with the rack based approach. Took me a few tries to get right, but works slick once it is set up. Thanks a bunch On Tue, Apr 27, 2010 at 1:33 PM, Jimmy S. \< ---
**Author:** ![Chris\_Ortman](https://www.ruby-forum.com/letter_avatar_proxy/v4/letter/c/779978/32.png) [@Chris\_Ortman](https://www.ruby-forum.com/u/Chris_Ortman)\ **Post date:** [April 27, 2010, 8:55pm UTC](https://www.ruby-forum.com/t/app-config-file-in-a-rails-app/187666/5 "2010-04-27T20:55:54Z")
You could do that, but is your eventual goal to actually deploy the app? If so I’d suggest using IronRuby.Rack ([http://github.com/ironruby/ironruby/tree/master/Merlin/Main/Hosts/IronRuby.Rack](http://github.com/ironruby/ironruby/tree/master/Merlin/Main/Hosts/IronRuby.Rack)) which lets you run Rails on [ASP.NET](http://ASP.NET) webservers (IIS, for example). It requires that you have a web.config in your application, so you could put settings in there. From: removed\_email\_address@domain.invalid [[mailto:removed\_email\_address@domain.invalid](mailto:removed_email_address@domain.invalid)] On Behalf Of Tomas M. Sent: Tuesday, April 27, 2010 10:53 AM To: removed\_email\_address@domain.invalid Subject: Re: [Ironruby-core] app.config file in a rails app A couple of options here. 1. ``` Use/create a .NET executable with app.config file. One option is ``` to copy ir.exe to the root directory of your app and add ir.exe.config with appSettings that you need. Don’t forget to change Ruby library paths in that ir.exe.config file. You’ll also need to copy the rest of the assemblies from IronRuby bin directory to the same directory as ir.exe (or some subdirectory that you specify in element of ir.exe.config, see [\ Element | Microsoft Learn](http://msdn.microsoft.com/en-us/library/823z9h8w(VS.80).aspx)) or to the GAC (using gacutil.exe: [Global Assembly Cache Tool (Gacutil.exe) | Microsoft Learn](http://msdn.microsoft.com/en-us/library/ex0ss12c(VS.80).aspx)). 1. ``` Create an AppDomain that is set up to use the right config file: ``` [AppDomainSetup.ConfigurationFile Property (System) | Microsoft Learn](http://msdn.microsoft.com/en-us/library/system.appdomainsetup.configurationfile(v=VS.100).aspx). Then launch the entire rails application (script/server) in that AppDomain. Tomas From: removed\_email\_address@domain.invalid [[mailto:removed\_email\_address@domain.invalid](mailto:removed_email_address@domain.invalid)] On Behalf Of Chris Ortman Sent: Tuesday, April 27, 2010 6:45 AM To: removed\_email\_address@domain.invalid Subject: [Ironruby-core] app.config file in a rails app I am playing around with ir + rails and using it in front of a bunch of existing .NET code. The .NET code really really wants a couple of settings in When i run via script/server though the app.config file is ir.exe.config (AppDomain.Current.SetupInformation.ConfigurationFile)… is there a way to override what config file is loaded? Thanks