[SOLVED] What's a Capfile? And how do I use it correctly with Ruby on Rails?

What's a Capfile? And how do I use it correctly with Ruby on Rails?

I have a ruby on rails application that should be transferred from one server to another (that's not working fine at the moment). I installed capistrano. I'm using debian 7 server with apache passenger.

I saw a Capfile in the root directory of the ruby on rails application. Is a Capfile something like a makefile to build and deploy the application? How do I correctly work with it?

UPDATE

When I run the cap file i got this: ' cap deploy:setup '

(Backtrace restricted to imported tasks)
cap aborted!
LoadError: cannot load such file -- config/deploy
/var/www/myapplication/Capfile:3:in `load'
/var/www/myapplication/Capfile:3:in `<top (required)>'
(See full trace by running task with --trace)

it seems like the deploy file coun't be loaded ... i have in the config folder an deploy folder and a deploy.rb

whats going wrong?

Solution

This is happening because Capistrano tasks are now Rake tasks and Rake expects a construct like this:

task :name, [:arg, :arg] => :dependency do
  ...
end

Capistrano 3:

task :dump do
  on primary roles :db do
    ...
  end
end