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

Rex

A agent-less server orchestration tool built on Perl

     

linux windows osx open-source orchestration perl

Riemann

Riemann aggregates events from servers and applications, notifies exceptions, tracks latency, collects system statistics and more, all with a powerful stream processing language

     

linux open-source monitoring clojure