Puppet

puppet is the main configuration management tool to be used on the Wikimedia clusters.

Puppetmaster

The puppetmaster server in pmtpa is sockpuppet.pmtpa.wmnet.

Installation

Simply use the (backported) puppetmaster Ubuntu package:

# apt-get install puppetmaster

Configuration

The default configuration is very usable, but we've made some tweaks here and there.

MD5 is broken, use SHA1 for signing certificates:

ca_md=sha1