Self-hosted / open sourceVirtualisation & ContainersHeadquarters: DE

Yaook: sovereignty score and 8 European alternatives

Yaook is open-source software for deploying and operating OpenStack on Kubernetes. Its operators automate routine tasks such as replacing failed nodes, upgrading OpenStack versions and moving workloads, and are configured with manifests that describe the OpenStack services to run. It is delivered for self-hosting: the operators are deployed into the operator's own Kubernetes cluster, ideally on bare metal, and are typically managed through GitOps. The project's website describes the software as fully open source.

Yaook is developed and maintained by ALASCA e.V., a registered non-profit association under German law with its registered seat in Dresden, Germany. The vendor's contact address is c/o Cloud&Heat Technologies GmbH in Dresden. The code is licensed under Apache 2.0 and hosted on GitLab. Because the software runs on infrastructure the operator controls, cloud data stays under the operator's own administration, and the project has no foreign parent company. For a European organisation building a private or sovereign OpenStack cloud, the decisive questions are hardware, operations and staffing, which remain with the operator.

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Sovereignty score

94 / 1000 = high exposure
100 = sovereign

Jurisdiction SOV-2100
Headquartered in the EU: European law applies
Data residency SOV-3100
EU-only hosting
Cryptographic key sovereignty SOV-390
Self-hostable: encryption keys under your own control
Freedom from lock-in SOV-680
Open source: low switching costs
Source & runtime sovereignty SOV-4 · SOV-6100
Source code auditable, forkable and self-hostable

SOV codes: the matching objective in the European Commission's Cloud Sovereignty Framework. Official source

How the score is calculated

Facts and evidence

Last checked October 12, 2026

Headquarters	DE (EU)Verified by hand
Sovereignty model	Open-source, distributedVerified by hand
Data hosting	EUVerified by hand
Open-source	YesVerified by hand
GDPR-compliant	NoVendor-stated
Category	Virtualisation & Containers
Type	Product
Website	yaook.cloud ↗

How we verify · Something wrong? Suggest a correction

Top EU-based & GDPR-compliant alternatives to Yaook

The European alternatives to Yaook come from our knowledge base of over 8,000 vendors. We only list vendors headquartered in the EU or the EEA; fully European-owned vendors rank before vendors with a foreign owner. For each alternative you see the country, the open-source status and a short description.

Score per alternative: 0 = high exposure, 100 = sovereign

23 European Virtualisation & Containers vendors are in the catalogue. View the whole category · Submit an alternative · View category on the map

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Why digital sovereignty matters with Yaook

Yaook is headquartered in DE and therefore falls under European law: the GDPR, NIS2 and the Data Act. No foreign legislation can compel access to your data.

Data is hosted exclusively in the EU, so Yaook scores best on data residency.

Yaook is open source. You can audit the source code, self-host the software and keep the encryption keys under your own control. Switching is easier because data and software are not tied to a single party.

What this means for your organisation depends on your whole stack and context. The free assessment weighs Yaook together with your other vendors and gives a total score, a heatmap and the main risk drivers.

Frequently asked questions

What is the best European alternative to Yaook?

It depends on your use case. Strong EU alternatives to Yaook include APPUiO (VSHN), Capsule and Gardener. On this page you can compare 8 EU alternatives by jurisdiction, data residency and open-source status.

Are there open-source alternatives to Yaook?

Yes. Open-source EU alternatives to Yaook include Capsule, Gardener, Giant Swarm, Harvester, IncludeOS, K3s and Kamaji. These keep your data fully under your own control and let you self-host if you want to.

Is Yaook GDPR-compliant and where is the data hosted?

Yaook is headquartered in DE (EU) and hosts data in EU. It is also open-source, so you can self-host it. That makes Yaook an EU-sovereign choice in its own right; the EU alternatives on this page are comparable European tools.

Details and sources

Verified by handHeadquarters, owner, hosting locations and licence have been checked by us against public sources. Free of charge and for every vendor, not a paid label. Nothing in this knowledge base is taken over automatically. Last checked on October 12, 2026.

Sources

Public sources used in the latest check of this record.

Compliance evidence

The links below point to the vendor's own public documents. We only record what we found: a missing link means "not found publicly", not "not compliant".

No public compliance evidence has been recorded for this vendor yet. Do you know its DPA or subprocessor list? Something wrong? Suggest a correction

Cyber Resilience Act

Public signals that relate to the EU Cyber Resilience Act. They do not count towards the score. A missing line means "not found publicly".

We found none of these signals on the vendor's own site when we checked.

For products in scope of the CRA, CE marking is required from 11 December 2027; this cannot be checked yet.

Checked on October 12, 2026. What is the Cyber Resilience Act?

Digital sovereignty in Virtualisation & Containers

Virtualisation & Containers: Virtualisation platforms, container management, Kubernetes distributions and hypervisors. In this category the choice of vendor determines who has legal access to your data, where that data lives and how easily you can switch later.

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