Today I want to talk about a process we created for building out machines using Virtual Machine Manager (VMM) as part of our daily build process within Team Foundation Server (TFS).

As part of our nightly build process, we actually recreate the entire environment from scratch. We don’t use snapshots; we actually delete and provision a series of VMs. This may sound like overkill and I’ve seen other approaches that use snapshots and revert each night…and I think that’s great. Use what works for you. However, we wanted something that could not only exercise our code base, but also our scripts that we use for building our environment. In a way, this allows us to test both pieces at the same time.

At this point I should throw in the disclaimer that this blog post builds on one written by my colleague David Baber: Driving PowerShell With XML. We use the same XML-driven framework to build out our machines. In reality the process of removing and creating VMs is treated as just one “step” in our build-out process. Executions of other steps obviously follow, but this post is primarily concerned with standing up that environment. What happens next is up to you. Read More…