Generate true unique server-id for mysql using puppet

I found a few solutions on the net, but people just attach the last 2 digits and I would like to avoid issues like this where 10.0.1.11 and 10.0.11.1 would both produce server-id 111.

So to fix that, I seperate the IP and multiply the 3rd digit by a 1000.

$serverid = inline_template(’<%= scope.lookupvar('::ipaddress').split('.')[2].to_i * 1000 + scope.lookupvar('::ipaddress').split('.')[3].to_i %>')