Time goes on, and your boss is impressed with the speed at which you are able to provision new servers on demand and replace faulty ones as they break. He/she notices, however, that the response time drops off severely after you hand off the servers to the application team to install the company's custom software. After discussing it with the application team, you are cleared to codify the installation requirements and configuration for the company's application called Apollo and add it to your DSC configuration. Since you've already added the base installation requirements to the DSC configuration script, it's a simple matter to add the MSI installation steps for the Apollo application.

The Apollo application is only supposed to be installed on the app servers, so you need a way to tell DSC not to install it on any other target node. You...