# un bucle indexat

(1..5).each do |n|
  puts "volta #{n}"
end


# iterar un array

nodes = [ "web", "db", "storage" ]
nodes.each_with_index do |name, i|
  puts "VM num #{i} : #{name}"
end


# iterar un diccionari

nodes = {
  "web"     => { ip: "192.168.33.10", memory: 1024, cpus: 1 },
  "db"      => { ip: "192.168.33.11", memory: 2048, cpus: 2 },
  "storage" => { ip: "192.168.33.12", memory: 512,  cpus: 1 }
}

nodes.each do |name, opts|
  puts "VM #{name}"
  puts "\tcpus:\t" + opts[:cpus].to_s
  puts "\tmemory:\t" + opts[:memory].to_s
  puts "\tip:\t" + opts[:ip]
end