Cloning a script and running it on remote server with ruby

clone_and_run_script_remotely.rb

# this is a perfect use case for a capistrano task
# capistrano includes ruby ssh libraries and is used for deployments
# assuming ssh access is NOT password based but key-based 

require 'capistrano'
default_run_options[:pty] = true
# Application Name
set :application, "remote_script"

# Repository Settings
set :scm, :git
set :branch, :master
set :repository, "path_to_git_repo_containing_upload_script.rb"
set :scm_verbose, true
ssh_options[:forward_agent] = true
set :git_shallow_clone, 1

# Server Settings
set :user, "ubuntu"
#set :password, "12345678" in case authentication was password based
set :domain, "10.11.120.139"
set :deploy_to, "/home/ubuntu/scripts/#{application}"

namespace :deploy do
   
   task :start do 
    run "#{try_sudo} ruby /home/ubuntu/scripts/#{application} start"
   end
   
   task :stop do
    run "#{try_sudo} ruby /home/ubuntu/scripts/#{application} stop"
   end
   
   task :restart, :roles => :app, :except => { :no_release => true } do
     run "#{try_sudo} ruby /home/ubuntu/scripts/#{application} restart"
   end
   
 end