Boxstarter
Repeatable, reboot resilient windows environment installations made easy using Chocolatey packages. When its time to repave either bare metal or virtualized instances, locally or on a remote machine, Boxstarter can automate both trivial and highly complex installations. Compatible with all Windows versions from Windows 7/2008 R2 forward.
windows open-source virt packaging provisioning powershell
Nebula
Nebula is a Docker orchestration tool designed to manage massive scale distributed clusters
linux open-source virt orchestration python
OSV
An operating system for lightweight virtual machines, designed from ground-up to run a single application, similar to CoreOS
linux open-source virt python