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This document helps people understand what Puppet is, how it related to usage on Wikimedia Labs, and provide help on how to use it to do various things.
What is Puppet?
What can I use it for on Wikimedia Labs?
How do I do X?
Most of these are done at [Horizon|https://horizon.wikimedia.org]. You need to be logged in and a member of the project you are trying to apply puppet roles to.