ruby-on-rails-3 - capistrano は database.yml を現在の代わりに release にデプロイします

Question

私の capistrano resipe は、代わりにreleasesディレクトリからdatabse.ymlを取り込もうとします

/var/www/pantry/current/config/database.yml

次のエラーでクラッシュします。

No such file or directory - /var/www/pantry/releases/20130610020222/config/database.yml

私の deploy.rb

require "rvm/capistrano"
require "bundler/capistrano"
set :application, "pantry"
set :repository,  "git@github.com:tbrooke/food-pantry-manager.git"
set :user, 'deployer'
set :ssh_options, {:forward_agent => true}
set :use_sudo, false
set :rvm_type, :user
default_run_options[:pty] = true
set :scm, :git

set :deploy_to, "/var/www/pantry"
set :branch, "master"
set :deploy_via, :remote_cache
set :use_sudo, false

server "192.168.1.30", :web, :app, :db, primary: true

ssh_options[:forward_agent] = true

role :web,    "192.168.1.30"
role :app,    "192.168.1.30"
role :db,     "192.168.1.30", :primary => true

after "deploy", "deploy:migrate"

after 'deploy:update_code', 'deploy:symlink_db'

namespace  :deploy do
   desc "Symlinks the database.yml"
   task :symlink_db, :roles => :app do
   run "ln -nfs #{shared_path}config/database.yml #{release_path}/config/database.yml"
   end
end

require 'simple-capistrano-unicorn'
after :deploy, "unicorn:restart"

現在のディレクトリを指すようにこれを変更するにはどうすればよいですか?