Name: Cloud Native IoT: OTA Updates and Device Repurposing With K8s - Anastassios Nanos & Charalampos Mainas, Nubis PC
Start: 2025-08-26T11:55:00+0200
End: 2025-08-26T12:35:00+0200

25-27, August 2025
Amsterdam, Netherlands
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Note: The schedule is subject to change.

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Tuesday August 26, 2025 11:55 - 12:35 CEST

Emerald Room

This session presents an open-source system for integrating resource-constrained IoT devices like ESP32-based MCUs into k8s-managed environments. It covers secure device onboarding using Entity Attestation Tokens (EATs) and OpenDICE, where devices generate cryptographic identities from hardware-embedded secrets and attest their state during registration and OTA updates.

Devices are discovered using Akri, which exposes them as addressable Kubernetes resources. Firmware is built and packaged as OCI artifacts, stored in standard registries, and deployed via a k8s "FlashJob" operator that lives alongside the Akri framework. Upon deployment, prior to joining the cluster, devices are onboarded and validated via Akri's discovery handler. When repurposed, devices are validated again, to ensure end-to-end attestation of both hardware and software components.

The session focuses on concrete mechanisms for OTA management, hardware-rooted identity, and distributed execution targeting constrained systems under k8s control.

Speakers

Anastassios Nanos

Systems Researcher, NUBIS PC

I am a Researcher in Computer Systems and I am currently working on the lower-level parts of the stack to attack issues related to performance, scalability, power-efficiency and security in hypervisors.

Charalampos Mainas

Systems Software Engineer, Nubis PC

Charalampos Mainas is a systems engineer who is very interested in virtualization technologies and operating systems. His main focus is on finding ways to improve the performance and scalability of lightweight VMMs. Moreover, he has considerable experience with unikernel stacks, porting... Read More →

Tuesday August 26, 2025 11:55 - 12:35 CEST
Emerald Room

Cloud & Containers

Audience Experience Level Intermediate

Open Source Summit Europe 2025

Anastassios Nanos

Charalampos Mainas

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