Name: From Frankenstein To Kamaji: Lessons in Building a Single CAPI Cluster Across Multiple Providers - Antonia von den Driesch, Giant Swarm
Start: 2026-08-11T17:15:00+0900
End: 2026-08-11T17:45:00+0900

11-12, August 2026
Seoul, South Korea
View More Details & Registration
Note: The schedule is subject to change.

The Sched app allows you to build your schedule but is not a substitute for your event registration. You must be registered for Open Source Summit Korea 2026 to participate in the sessions. If you have not registered but would like to join us, please go to the event registration page to purchase a registration.

This schedule is automatically displayed in Korea Standard Time (KST), UTC +9. To see the schedule in your preferred timezone, please select from the drop-down menu to the right.

From Frankenstein To Kamaji: Lessons in Building a Single CAPI Cluster Across Multiple Providers - Antonia von den Driesch, Giant Swarm

Tuesday August 11, 2026 17:15 - 17:45 KST

Orchid 2

At Giant Swarm we use Cluster API to provision and bootstrap our k8s clusters. With this setup, control plane (CP) and worker nodes must run on the same infrastructure which was never an issue so far...

However, in bare-metal environments, using 128-core servers for CP nodes is luxury. It's far more efficient to host them as virtual machines on a hypervisor while keeping workers on physical hardware. But can we get around CAPI's limitations?

We will walk through how we built Frankenstein's cluster by mixing vSphere for the CP and Proxmox for workers as a testing ground. While technically functional, this required "hacky engineering". We will share the hurdles we hit and the operational risks of this hybrid cluster setup.

Finally, we will demonstrate how we solved this challenge with a cleaner, upstream-friendly alternative. Kamaji lets us run the CP as pods in a management cluster. We achieved even better resource optimisation with full native community support and no custom hacks.

Speakers

Antonia von den Driesch

Platform Engineer, Giant Swarm

Antonia has been a platform engineer at Giant Swarm for 5 years and is currently working on development of Giant Swarms Industrial IoT platform which brings their managed Kubernetes product to Smart Factory customers.

Tuesday August 11, 2026 17:15 - 17:45 KST
Orchid 2

Cloud + Orchestration

Open Source Summit Korea 2026

Antonia von den Driesch

Sign up or log in to save this to your schedule, view media, leave feedback and see who's attending!

Get help with the event