puppet interfaces ipaddr prefixlen

gistfile1.txt

require 'ipaddr'
require 'puppet/util/ipcidr'

interfaces = Facter.value('interfaces')

# If we do not have any interfaces, then there are no requested attributes
unless interfaces == :undefined
  interfaces = interfaces.split(',')
  
  interfaces.each do |iface|
    ipaddress = Facter.value("ipaddress_#{iface}")
    netmask = Facter.value("netmask_#{iface}")
    ipaddress6 = Facter.value("ipaddress6_#{iface}")
    netmask6 = 64

    unless ipaddress.nil?
      ip = Puppet::Util::IPCidr.new(ipaddress)
      ipm = ip.mask(netmask)

      Facter.add("prefixlen_#{iface}") do
        setcode do
          ipm.prefixlen
        end
      end

      Facter.add("netcidr_#{iface}") do
        setcode do
          ipm.cidr
        end
      end

      Facter.add("ipcidr_#{iface}") do
        setcode do
          "#{ipaddress}/#{ipm.prefixlen}"
        end
      end
    end

    unless ipaddress6.nil?
      ip6 = Puppet::Util::IPCidr.new("#{ipaddress6}/64")

      Facter.add("netcidr6_#{iface}") do
        setcode do
          ip6.cidr
        end
      end
    end
  end
end