Running CentOS on the Facebook fleet

We'll focus on how we deploy and manage CentOS on our fleet at Facebook, and showcase challenges, best practices and lessons learned working with a deployment of hundreds of thousands of machines. We'll discuss challenges encountered over the years, tools that we developed to overcome them, the process used to integrate upstream updates, packaging tools and workflows and configuration management challenges. Finally, we'll talk about our approach for working and building relationships with upstream open source communities and projects.