[xorcist]

That is your configuration, which you (may) want to manage.

Your whole infrastructure contains much more than that, and managing all that as a coherent whole is what these tools do.

[dharmab]

Yeah, but what's left after you slim down your VMs to a Linux kernel, an SSH daemon and a container runtime? Is a CM system really justified at that point? Why not bake VM images and treat the VMs as immutable?