Puppet module for Augeas

 Puppet lets you centrally manage every important aspect of your system using a
 cross-platform specification language that manages all the separate elements
 normally aggregated in different files, like users, cron jobs, and hosts,
 along with obviously discrete elements like packages, services, and files.
 .
 Camptocamp Augeas extends Puppetlabs's augeas-core. Augeas is a configuration
 editing tool. It parses configuration files in their native formats and
 transforms them into a tree. Configuration changes are made by manipulating
 this tree and saving it back into native config files.