Facter 4: back to the roots
Facter is a cross platform system profiling tool. It gathers nuggets of information about a system such as its hostname, IP address and operating system. We call these nuggets of information facts and they are used by other Puppet products like Puppet, Puppet Server and Bolt to make decisions in their automation process. You can extend Facter by writing custom facts or external facts and use them in Puppet manifests.