Many of the modules found on the public Forge are of high quality and have good documentation. The modules we will cover in this section are well-documented. What we will do is use concrete examples to show how to use these modules to solve real-world problems. Though I have covered only those modules I personally found useful, there are many excellent modules that can be found on the Forge. I encourage you to have a look at them first before starting to write their own modules.

The modules that we will cover are as follows:

These modules extend Puppet with custom types and, therefore, require that pluginsync be enabled on our nodes. Pluginsync copies Ruby libraries from the modules to /var/lib/puppet/lib/puppet and /var/lib/puppet/lib/facter. To enable pluginsync, set pluginsync=true in /etc/puppet/puppet.conf, or add pluginsync to the puppet agent command line.