Portland, Oregon-based Puppet Labs, commercial sponsor of the open-source server configuration framework Puppet, announced today that it has secured a $5 million Series B funding round, led by Kleiner Perkins Caufield & Byers. Existing investors True Ventures and Radar Partners also contributed, bringing Puppet Labs’ total funding to date to over $7 million.

This round of funding will help the company build its engineering team and build on its growth in the enterprise.

Puppet Labs’ open-source software helps system administrators configure and automate server management. Rather than relying on manually built scripts with little portability or reusability, Puppet streamlines the deployment of servers and improves the consistency of data center resources. Puppet is currently used by companies like Digg, Match.com and Twitter.

Puppet Labs also announced today the release of Puppet 2.6, an upgrade to its flagship product. New features include a REST API.

Like several major players as well as startups in the cloud industry, Puppet Labs is building its enterprise offerings around open source. The intersection between cloud computing and open source is poised to be a major topic at this week’s OSCON in Portland.