Isomorfeus::Puppetmaster.register_server :iodine do |app, port, host, **options|
  begin
    require 'iodine'
    require 'iodine/version'
    require 'rack/handler/iodine'
  rescue LoadError
    raise LoadError, "Unable to load 'iodine' as server."
  end

  Iodine::Rack.run(app, { Host: host, Port: port }.merge(options))
end

Isomorfeus::Puppetmaster.server = :iodine