DevOps is a new concept that has emerged in the Development and Operations community. It calls for closer relations between developers and operations people with a view toward improving the quality of the services we provide. I'll introduce the tenants of DevOps: * Simplicity * Relationships * Process, automation, tooling * Continuous improvement I'll also focus on automation and tooling and especially some of the more interesting open source projects (and people!) that make DevOps possible: configuration management tools, monitoring, metrics management and visualisation. Finally, I'll cover some of the critiques, criticisms and FUD throw at DevOps and why the concepts are more than just marketing.