NOTICE: Digital Rebar (v3) replaces OpenCrowbar
What is Crowbar (v1) / OpenCrowbar (v2)?
A specialized orchestration framework for configuring physical infrastructure with heterogeneous hardware, operating systems and configuration management targeted at scale-out operations and software platforms. It was designed with a service oriented model based on iterative directed convergence with system-wide cross-node dependencies.
OpenCrowbar (now on v3 is Digital Rebar) is an open source DevOps-based physical provisioning framework. It is vendor agnostic about hardware, operating system and config. managers. The DR design uses an annealing orchestration approach that can coordinate both in-band (using SSH or agent calls), side-band (calls to a short-term utility boot image) and out-of-band (using external APIs or BMC control) actions.
In October 2014, several Crowbar founders and I launched RackN to offer commercial support and extensions around the Digital Rebar project. We are committed to growing the community an the open core project.
More Background? See my Crowbar posts.