# File lib/deltacloud/drivers/rhevm/rhevm_driver.rb, line 218
  def create_instance(credentials, image_id, opts)
    name = opts[:name]
    name = "Inst-#{rand(10000)}" if (name.nil? or name.empty?)
    realm_id = opts[:realm_id]
    if (realm_id.nil?)
        realms = filter_on(realms(credentials, opts), :name, :name => "data")
        puts realms[0]
        realm_id = realms[0].id
    end
    vm = execute(credentials, "addVm.ps1", image_id, name, realm_id)
    vm_to_instance(vm[0])
  end