Schlagwort: UCSD

this is maybe just a note for myself as i found out that the UCSD-Documentation is in polite wording „somehow incomplete“.

After re-engineering some existing workflow task-scripts and playing around a bit, the good news:

• it’s simple and straightforward to create custom workflow tasks on your own.

Background

I wanted to create the name of newly provisioned VLANs automatically:

• the IP-Subnet was provided by an IPAM, e.g. „10.2.3.0“,
• the VLAN-Names should have fixed length, had to be padded („010.002.003.000“).

The workflow takes two task inputs:

• the „network“,
• the char to be used to pad the network-string to the fixed length
  • as special feature, this parameter is optional („Mandatory: false“)

A javascript will build the padded vlan-name – the task output:

The Script fetches the inputs:

input.<Input Field Name>

a) mandatory input:

var subnet = input.subnet;

b) optional (with default-value „0“) input:

• length „0“ => optional parameter not set

var pad = "0";
if (input.pad.length==1) {
  pad = input.pad;
}

The padded result is published to

output.<Output Field Name>

c) padded subnet

output.paddedSubnet = paddedSubnet;

The Script itself is straightforward:

function expand(num, size, pad) {
  if (num.length<size) {
    return expand(pad+num, size, pad);
  }
  return num;
}

var subnet = input.subnet;
var paddedSubnet = "";

var pad = "0";
if (input.pad.length==1) {
  pad = input.pad;
}

logger.addInfo("---------------------------------");
logger.addInfo("input.subnet = "+subnet);
logger.addInfo("using pad = ["+pad+"]");
//
var parts = subnet.split('.');
for(var j=0; j<parts.length; j++) {
  if (paddedSubnet) {
    paddedSubnet += ".";
  }
  paddedSubnet = paddedSubnet + expand(parts[j], 3, pad);
}

output.paddedSubnet = paddedSubnet;

logger.addInfo("output.subnet = "+paddedSubnet);
logger.addInfo("---------------------------------");