Log your servers with Capistrano

deploy.rb

require File.join(File.dirname(__FILE__), 'deploy/log')

# ....
# insert the rest of your capistrano script here

log.rb

# from https://github.com/webficient/capistrano-recipes/blob/master/lib/recipes/log.rb
Capistrano::Configuration.instance.load do
  namespace :log do
    desc "Tail all application log files"
    task :tail, :roles => :app do
      run "tail -f #{current_path}/log/*.log" do |channel, stream, data|
        puts "#{channel[:host]}: #{data}"
        break if stream == :err
      end
    end
  end
end