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# Your Kubernetes Node Is Not a Server: Rethinking the OS Layer


- **Date:** Friday, Jul 10, 2026
- **Time:** 15:00–15:30 (30 min)
- **Room:** Stage 2
- **Event:** World Congress 2026 Europe

## Recording

[Watch recording](https://www.wearedevelopers.com/videos/100315-your-kubernetes-node-is-not-a-server-rethinking-the-os-layer)

## Description

Kubernetes already treats nodes as disposable, but most platform stacks still run them as long-lived servers. This mismatch creates unnecessary complexity in upgrades, security, and operations, especially for edge, bare-metal, and high-churn environments.

In this talk, I’ll present an alternative model: treating Kubernetes worker nodes as firmware, not operating systems. Using k0s, Linux Unified Kernel Images (UKI), and an initramfs-only OS, we build immutable workers that boot entirely from RAM, fetch configuration from metadata (cloud-init style), and optionally persist state using a single mounted /var directory.

## Speaker

### [Natanael Copa](https://www.wearedevelopers.com/@natanael-copa)

Software Engineer at Mirantis


## Related talks at this congress

- [From Cloud Racks to Control Cabinets: Operating Kubernetes on Edge Devices](https://www.wearedevelopers.com/events/world-congress-2026-europe/sessions/1173-from-cloud-racks-to) — Thomas Weinschenk
- [Building a Cloud Platform Where Everything is Just Another Kubernetes Resource](https://www.wearedevelopers.com/events/world-congress-2026-europe/sessions/1131-building-a-cloud) — Patrick Koss
- [Linux (Pseudo)Filesystems: The Hidden Backbone of Cloud Native](https://www.wearedevelopers.com/events/world-congress-2026-europe/sessions/1029-linux-pseudo) — Daniel Drack
- [The Hidden Costs of CPU Limits in Kubernetes](https://www.wearedevelopers.com/events/world-congress-2026-europe/sessions/1444-the-hidden-costs-of) — Pavel Malyarevsky