If a specific node is classified in both a node group and site.pp, what is the expected behavior during a Puppet agent run?

When a specific node is classified in both a node group and site.pp, it leads to a situation where there might be conflicting definitions. In Puppet, site.pp generally serves as the primary manifest for classifying nodes, but when the same node is also included in a node group with potentially different parameters or classes, it can create ambiguity.

In this case, Puppet will attempt to compile the configuration for the node and encounter a conflict between the classifications provided in the node group and those in site.pp. This can lead to a compilation error because Puppet won’t be able to resolve which set of instructions to prioritize, resulting in a situation where it cannot successfully generate the catalog for that node.

Therefore, it's expected that a compiling error will occur, indicating the necessity for clarity in classification and the importance of avoiding overlapping definitions in different locations within the Puppet manifests.