Understanding the relationship between foreman hostgroups, classes, and puppet manifests and catalogs

[helge000]

Right! I did put it here:

Intro to Foreman and Puppet: Getting started with Classes, Hostgroups and Environments

How does Foreman determine node definitions? ENC Foreman acts as an External Node Classifier (ENC). Remember, node is just a fancy word for host and is used interchangeably here. An ENC acts like the traditional site.pp: Add classes and variables to a host object and create a catalog for a specific node only. Foreman will resolve classes and parameters usually from the hostgroups (see bellow). To see it in action, go to a specific host and the press YAML button. Basically, this YAML is fed t…