role :demo, %w{example.com example.org example.net} task :uptime do on roles(:demo), in: :parallel do |host| uptime = capture(:uptime) puts "#{host.hostname} reports: #{uptime}" end end Capistrano extends the Rake DSL with methods specific to running commands on() servers. For Any Language Capistrano is written in Ruby, but it can easily be used to deploy any language. If your language or framewor