gistfile1.txt

body common control
{
        bundlesequence => {
                "main",
        };
}

bundle agent main
{
        methods:

                "any" usebundle => fwports;
                "any" usebundle => test;
}

bundle agent fwports
{
   vars:
      "tcp" data => parsejson( '
{

   "inbound" :
      {
         "ssh" : 22,
         "smtp" : 25,
         "ntp" : 123
      },
   "outbound" :
      {
         "ssh" : 22,
         "http" : 80,
         "https" : 443
      }
}
');
}

bundle agent test
{
   vars:
      "i" slist => getindices( "fwports.tcp[inbound]" );

   reports:
      "inbound_tcp port [${fwports.tcp[inbound][${i}]}] for [${i}]";
}
neil@ettin ~/.cfagent/inputs $ cf-agent -Kf ./fwports.cf 
R: inbound_tcp port [22] for [ssh]
R: inbound_tcp port [25] for [smtp]
R: inbound_tcp port [123] for [ntp]