Puppet, an automated administrative engine for your Linux, Unix, and Windows systems, performs administrative tasks (such as adding users, installing packages, and updating server configurations) based on a centralized specification.
Documentation (and detailed installation instructions) can be found online at the Puppet Docs site.
Generally, you need the following things installed:
A supported Ruby version. Ruby 1.8.7, and 1.9.3 are fully supported.
The Ruby OpenSSL library. For some reason, this often isn't included in the main ruby distributions. You can test for it by running
ruby -ropenssl -e "puts :yep". If that errors out, you're missing the library.
If your distribution doesn't come with the necessary library (e.g., on Debian and Ubuntu you need to install libopenssl-ruby), then you'll probably have to compile Ruby yourself, since it's part of the standard library and not available separately. You could probably just compile and install that one library, though.
Facter => 1.6.11 (available via your package manager or from the Facter site).
See LICENSE file.