def default_machine_group?
      default_env = @@config.defaults.environment || Rudy::DEFAULT_ENVIRONMENT
      default_rol = @@config.defaults.role || Rudy::DEFAULT_ROLE
      @@global.environment == default_env && @@global.role == default_rol
    end
def default_machine_group?
      default_env = @@config.defaults.environment || Rudy::DEFAULT_ENVIRONMENT
      default_rol = @@config.defaults.role || Rudy::DEFAULT_ROLE
      @@global.environment == default_env && @@global.role == default_rol
    end
Returns true if this is the default machine environment and role