Capistrano

#config/deploy.rb

set :application, "app1"

default_run_options[:pty] = true
set :repository,  "[email protected]:595959/app1.git"

set :scm, :git
# Or: `accurev`, `bzr`, `cvs`, `darcs`, `git`, `mercurial`, `perforce`, `subversion` or `none`
set :scm_passphrase,  "p@ssw0rd"

ssh_options[:forward_agent] = true

set :user, "root"

set :deploy_to, "/home/user1/app1.com"
set :use_sudo, false

role :web, "host.ip"                          # Your HTTP server, Apache/etc
role :app, "host.ip"                          # This may be the same as your `Web` server
ssh_options[:port] = 22

role :db,  "host.ip", :primary => true # This is where Rails migrations will run

namespace :deploy do
  %w(start stop restart).each do |action| 
    desc "#{action} the Thin processes"  
    task action.to_sym do
       find_and_execute_task("thin:#{action}")
    end
  end

  desc "Symlink shared configs and folders on each release."
  task :symlink_shared do
    run "ln -nfs #{shared_path}/config/database.yml #{release_path}/config/database.yml"
    run "ln -nfs #{shared_path}/config/environment.rb #{release_path}/config/environment.rb"
    run "ln -nfs #{shared_path}/config/environments/development.rb #{release_path}/config/environments/development.rb"
    run "ln -nfs #{shared_path}/config/environments/test.rb #{release_path}/config/environments/test.rb"
    run "ln -nfs #{shared_path}/config/environments/production.rb #{release_path}/config/environments/production.rb"
    run "ln -nfs #{shared_path}/config/thin.yml #{release_path}/config/thin.yml"
    run "ln -nfs #{shared_path}/config/initializers/session_store.rb #{release_path}/config/initializers/session_store.rb"
    run "ln -nfs #{shared_path}/public/assets #{release_path}/public/assets"
    run "ln -nfs #{shared_path}/public/avatars #{release_path}/public/avatars"
  end

end

namespace :thin do  
  %w(start stop restart).each do |action| 
    desc "#{action} the app's Thin Cluster"  
    task action.to_sym, :roles => :app do  
      run "thin #{action} -c #{deploy_to}/current -C #{deploy_to}/current/config/thin.yml" 
    end
  end
end

after 'deploy:update_code', 'deploy:symlink_shared'