Kubernetes cluster management / An update on rkt + K8s

Cloud Native Berlin

Nov 13, 2017, 5:30 – 8:30 PM

In-person event

About this event

Join us for talks from Sebastian Scheele (@HrScheele) co-founder from Loodse (@loodse) and Iago López Galeiras (@iaguis), Technical Lead and co-founder at Kinvolk (@kinvolkio). 

Sebastian will introduce the concept of NodeClass and NodeSet which allows utilizing kubectl to deploy nodes.

Iago will present the work that Kinvolk has been doing on rktlet, the Kubernetes CRI implementation for rkt.

Food & drinks will be provided. 



[18:30- 19:00] Arrive and mingle 

[19:00 - 19:30] Iago López Galeiras,“rktlet: rkt as a Kubernetes CRI implementation”

[19:45 - 20:20] Sebastian Scheele, “Let a Kubernetes cluster manage its worker nodes by itself”

[20:20 - 21:00] Mingle time



“rktlet: rkt as a Kubernetes CRI implementation”,Iago López Galeiras
Abstract: rkt is a modern container runtime, built for security, efficiency, and composability. It is one of the container runtimes built into the Kubernetes core. But the Kubernetes community has now defined an interface that allows container runtimes to integrate with Kubernetes without requiring changes in the core Kubernetes code base. This interface is known as CRI – Container Runtime Interface. rktlet is the CRI implementation for rkt that is being worked on by the Kinvolk team.

This presentation will present rktlet, provide a status report, and show it in action. We'll also look at how rktlet development has driven changes in rkt itself.

“Let a Kubernetes cluster manage its worker nodes by itself”, Sebastian Scheele
Abstract: Why not use Kubernetes to manage and deploy worker nodes in a generic way? In a way which works on different cloud providers and also on bare-metal. This talk will introduce the concept of NodeClass and NodeSet which will allow you to utilize kubectl to deploy your nodes. Additionally, you will learn how to enhance the concept for specific requirements with your own controller.



Sebastian Scheele, Co-founder at Loodse - Sebastian is a co-founder of Loodse, and responsible for the business and product development. Prior to Loodse, Sebastian worked in the enterprise sector for more than ten years. He started his career at software producer SAP, where he was involved in the development of SAP Hana, and worked as a consultant for major international customers. Sebastian holds a degree in Computer Science from the University of Applied Science and Arts of Dortmund.

Iago López Galeiras, Technical Lead and co-founder at Kinvolk - Iago brought his relaxed Spanish demeanor to Berlin a few years back. Since then, he’s been diving and swimming around the internals of various Linux flavors; Android, embedded and Cloud. He’s a top contributor to the rkt project and for the past year he was pushing the limits of eBPF to get runtime statistics. Although he once got distracted by functional programming, his daily tasks see him working mainly in Go and C.



Monday, November 13, 2017
5:30 PM – 8:30 PM UTC


  • Aleksandra Nadolski



  • Benazir Khan


    Event and Community Coordinator