bundle agent modifying_managed_file
{
  vars:

      "data"   slist => { "10.1.2.3 sirius", "10.1.2.4 ursa-minor", "10.1.2.5 orion"};

  files:

      "/etc/hosts"

      comment => "Append a list of lines to the end of a file if they don't exist",
      perms => m("644"),
      create => "true",
      edit_line => append_if_no_lines("modifying_managed_file.data"),
      action => if_elapsed("60");
}