Apache rewrite rule to redirect https to http for pages you don’t need https

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Problem

You are using your Rails 3.2.x application with Apache and you have setup force_ssl in one of your controllers (ie payments), that you want to force the application to use ssl. But after you set it up, and you go to one of the actions for that controller, every subsequent page you follow still uses the https protocol, even if you don’t want them to.
So you need a way to force the serving of pages in http.

Solution

You can use a redirection in your SSL apache conf file, and specify that when it doesn’t match the sections (controller,actions) you specify it should be redirected to http.
Note that RewriteCond in Apache are by default ANDed when they are in subsequent lines so you can add more conditions and that you can use [OR] if you want to perform an OR logic operation.
So by adding the following in your virtual host for the 443 port (ssl), and apply the changes it should be working as expected:

Could not find activesupport-3.0.12 in any of the sources (Bundler::GemNotFound)

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Problem

You are trying to update your rails app deployed on a server, for example from 3.0.11 to 3.0.12, and at the same time trying to update the Ruby version from 1.9.2 to 1.9.3 but you are getting the following error from passenger:

and then modify the apache configuration file as in:

and then reload your apache configuration

Passenger (mod_rails) gem installation – Apache2 – Debian – rvm

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Problem
You would like to (re)-install passenger after a system wide rvm installation, but you only have the mod_passenger.c file and not the .so after the gem installation.

Solution
Make sure that after using gem install passenger you also use the command to install the apache2 passenger module:

passenger-install-apache2-module

you should then be able to see the .so file and add it to your /etc/apache2/mods-available/passenger.load

Rails Passenger Staging environment problem in Dreamhost

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Problem
You want to deploy your rails application using Passenger in Dreamhost, but on a staging environment. It doesn’t work just changing your Capistrano recipe or your environment files, as the default environment for passenger is ‘production’.

Solution
Looking at the Passenger documentation here, there are four different ways of achieving that by changing the RailsEnv option. If you don’t want to change the Apache configuration files, and as long as the option AllowOverride is on (which should be on Dreamhost), then you would need to create an .htaccess file in your application’s public folder with the following:

RailsEnv staging