gistfile1.txt

bundle agent main
{
  methods:
      "" usebundle => basic_classes_vars;
      "" usebundle => basic_classes("ubuntu-server");
      #               "" usebundle => basic_classes("fellini");

  reports:
    server::
      "The server class is set";
    workstation::
      "The workstation class is set";
}

bundle agent basic_classes_vars
{
  vars:
      "regex_servers[test]"                                   string => ".*teste.*|.*server.*";
      "regex_servers[video]"                          string => "video\d-.*";

      "server_types" slist => getindices("regex_servers");
}

bundle agent basic_classes(name)
{
  classes:
      "server_$(basic_classes_vars.server_types)"
      scope => "namespace",
      expression => regcmp("$(basic_classes_vars.regex_servers[$(basic_classes_vars.server_types)])", "$(name)");

      "server"
      scope => "namespace",
      expression => regcmp("$(basic_classes_vars.regex_servers[$(basic_classes_vars.server_types)])", $(name));

      "workstation" not => "server",
      scope => "namespace";

  reports:
    workstation::
      "$(name) is a WORKSTATION";
    server::
      "$(name) is a SERVER";

    any::
      "$(name) is identified as server type: $(basic_classes_vars.server_types)"
      ifvarclass => "server_$(basic_classes_vars.server_types)";
}