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PORails 4: use different server port depending on environment
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20144479
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2013-11-22T12:04:13.067
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2013-11-22T17:10:16.410
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Body
I'm trying to automate the configuration of my rails application and I want to be able to start the app without specifying the port, as I would like it to be chosen depending on the environment. Specifically (something simple to start with) to run the application on port 3000 if environment is production, on port 3500 otherwise. So, following this answer, I've added the following to my boot.rb file: <pre><code>require 'rails/commands/server' module DefaultOptions def default_options super.merge!(Port: Rails.env.production? ? 3000 : 3500) end end Rails::Server.send(:prepend, DefaultOptions) </code></pre> Unfortunately I'm doing something wrong, because this is the output when I run <code>rails s</code>: <pre><code>/home/luca/projects/ads_manager/config/boot.rb:10:in `default_options': undefined method `env' for Rails:Module (NoMethodError) from /usr/local/lib/ruby/gems/2.0.0/gems/rack-1.5.2/lib/rack/server.rb:287:in `parse_options' from /usr/local/lib/ruby/gems/2.0.0/gems/rack-1.5.2/lib/rack/server.rb:184:in `options' from /usr/local/lib/ruby/gems/2.0.0/gems/railties-4.0.0/lib/rails/commands/server.rb:58:in `set_environment' from /usr/local/lib/ruby/gems/2.0.0/gems/railties-4.0.0/lib/rails/commands/server.rb:42:in `initialize' from /usr/local/lib/ruby/gems/2.0.0/gems/railties-4.0.0/lib/rails/commands.rb:73:in `new' from /usr/local/lib/ruby/gems/2.0.0/gems/railties-4.0.0/lib/rails/commands.rb:73:in `<top (required)>' from bin/rails:4:in `require' from bin/rails:4:in `<main>' </code></pre> Any idea why Rails.env is not available? Alternatives to obtain the same result are more than welcome indeed.
Tags
<ruby-on-rails><ruby-on-rails-4><environment-variables><boot>
Title
Rails 4: use different server port depending on environment
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