Installation and configuration
PuppetDB is an open source Closure application complementary to Puppet. It does exactly what the name suggests; it stores Puppet data that comprises the following:
- All the facts of the managed nodes
- A copy of the catalog compiled by the Master and sent to each node
- The reports of the subsequent Puppet runs with all the events that have occurred
What is stored must be queried, and for this, PuppetDB exposes a REST-like API that allows access to all its data.
Out of the box, it can act as an alternative for the following two functions done earlier using the ActiveRecord libraries:
- The backend for stored configurations, where we can store our exported resources
- A replacement of the Inventory Service (an API we can use to query the facts of all the managed nodes)
While read operations are based on a REST-like API, data is written by commands sent by the Puppet Master and queued asynchronously by PuppetDB to a pool of internal workers. These workers deliver data to the...
