Puppet Function: device_for_network

Defined in:
lib/puppet/parser/functions/device_for_network.rb
Function type:
Ruby 3.x API

Overview

device_for_network() ⇒ Any

Returns the device for the given network in cidr notation

device_for_network(“127.0.0.0/24”) => lo0

Returns:

  • (Any) 


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# File 'lib/puppet/parser/functions/device_for_network.rb', line 5

newfunction(:device_for_network, :type => :rvalue, :doc => <<-EOS
Returns the device for the given network in cidr notation

device_for_network("127.0.0.0/24") => lo0
  EOS
) do |args| 
  devices_in_range = [] 

  range = IPAddr.new(args[0])
  facts = compiler.node.facts.values
  ip_addresses = facts.select { |key, value| key.match /^ipaddress_(.*)/ }

  ip_addresses.each do |pair|
    key = pair[0]
    string_address = pair[1]
    ip_address = IPAddr.new(string_address)
    if range.include?(ip_address)
      devices_in_range.push(key.gsub(/^ipaddress_/,""))
    end
  end

  # TODO don't be a dork dork with the return
  # handle multiple values!
  return devices_in_range.first
end