Zuul as a build system lessons learned in the Tungsten Fabric infra

Tungsten Fabric (formerly known as OpenContrail) got a revamped CI and build system with its 5.0 release. The software behind both of these is OpenStack's Zuul. During this presentation we'll talk about the idea of sharing configuration between dev, CI, build and release processes, the benefits and costs of this approach and the story of bringing it to life with Zuul. The background for all of this will be the Tungsten Fabric's build system, where we compile code in various languages, put it int