Problem
You would like to get access to your rails application console on an Amazon ec2 instance, and you are also using rvm.
Solution
ssh name@myserver.com -i amazon_key
cd /my/project/directory/current/
bundle exec rails c environment
Problem
You are using the tr8n translation engine, which works fine in your local development environment, and you want to use it in an environment called ‘staging’, but after deployment you get the following error in your log files;
NoMethodError (undefined method `[]' for nil:NilClass): will_filter (3.1.9) lib/will_filter/config.rb:92:in `user_filters_enabled?' will_filter (3.1.9) lib/will_filter/extensions/action_controller_extension.rb:34:in `init_will_filter'
Solution
The default configuration file for will_filter includes an environment called ‘stage’ and not ‘staging’.
So you can add the following into the config/will_filter/config.yml file in your application (just afer the stage: line):
staging: <<: *defaults
Problem
You would like to start your rails console in an environment that is not the development, like staging or production.
Solution
Using the latest 3 shortcut you can use:
rails c staging
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