If you’ve never used MCollective before, start here.
This is a Vagrant-based demo environment that you can quickly get running on your own hardware. On a reasonably powerful server (around 32GB of memory), you can easily run a couple dozen nodes; on a modern-ish laptop, you can probably get at least five, maybe as many as ten.
The demo creates a fully functional MCollective deployment. It has a lightweight middleware and low security, but enables all major MCollective features, including direct addressing, multiple discovery methods, and several agent plugins.