DNS Resolution Inside Puppet
From Kyle's Wiki
Sometimes you have to look up an ip address inside a puppet manifest. Here are few ways to do it.
Contents |
Custom Parser Function
Put in:
modules/custom/lib/puppet/parser/functions/dnsLookup.rb:
# dnsLookup.rb
# does a DNS lookup and returns an array of strings of the results
require 'resolv'
module Puppet::Parser::Functions
newfunction(:dnsLookup, :type => :rvalue) do |args|
result = []
result = Resolv.new.getaddresses(args[0])
return result
end
end
ERB One-Liner
$ip = inline_template("<% _erbout.concat(Resolv::DNS.open.getaddress('$Thing_To_lookup').to_s) %>")