Para Arranca y lista maquinas de amazon. es un gist, no busques el readme, seria mas largo que el codigo

parador.rb

#!/usr/bin/env ruby
#

require 'yaml'
require 'rubygems'
require 'fog'
require 'thor'
require 'colorize'

class Main < Thor
    $config = YAML.load_file('config.yml')
    desc "list_keys", "Lists credentials"
    def list_keys
        for item in $config.each_key
            puts item
        end
    end
    desc "list_machines", "List machines in account/region"
    def list_machines(account)
        ec2 = Fog::Compute.new({:provider => 'AWS',
                                :aws_access_key_id => $config[account]['aws_access_key_id'],
                                :aws_secret_access_key => $config[account]['aws_secret_access_key']})
        servers = ec2.servers;
        if servers.empty?
            puts "No hay servidores en #{account}".black
            return
        end
        for server in servers
            if server.tags.has_key? 'Name'
                puts "#{server.tags['Name']}".red + " Server: " + "#{server.id}".yellow + " Size: #{server.flavor_id} Zone: #{server.availability_zone} Status: #{server.state}"
            else
                puts "Server: " + "#{server.id}".yellow + " Size: #{server.flavor_id} Zone: #{server.availability_zone} Status: #{server.state}"
            end
            if server.tags.has_key? 'Notas'
                puts "   #{server.tags['Notas']}".black
            end
        end
    end
    desc "list_all_machines", "Lists All machines"
    def list_all_machines
        for account in $config.each_key
            puts ">> " + "#{account}".blue
            list_machines(account)
        end
    end

    desc "start", "Starts a Server"
    def start(account, server_id)
        ec2 = Fog::Compute.new({:provider => 'AWS',
                                :aws_access_key_id => $config[account]['aws_access_key_id'],
                                :aws_secret_access_key => $config[account]['aws_secret_access_key']})
        server = ec2.servers.get(server_id)
        if server.empty?
            puts "No such server"
            return
        end
        case server.state
        when "terminated"
            puts "Terminated servers cannot be started"
        when "running"
            puts "Server already running"
        when "stopped"
            server.start
            puts "Starting server"
        else
            puts "Unknow state #{server.state}"
        end
    end

    desc "stop", "Stops a Server"
    def stop(account, server_id)
        ec2 = Fog::Compute.new({:provider => 'AWS',
                                :aws_access_key_id => $config[account]['aws_access_key_id'],
                                :aws_secret_access_key => $config[account]['aws_secret_access_key']})
        server = ec2.servers.get(server_id)
        if server.empty?
            puts "No such server"
            return
        end
        case server.state
        when "terminated"
            puts "Terminated servers cannot be stopped"
        when "running"
            puts "Stopping server"
            server.stop
        when "stopped"
            puts "Server already running"
        else
            puts "Unknow state #{server.state}"
        end
    end
end


Main.start