Standard for Portability Across Cloud Environments (SPACE)

SPACE is an initiative that aims for an open source cloud portability standard: enabling organizations to switch providers without technical or economic lock-in. Against a backdrop of geopolitical tensions and regulations (RGPD, Data Act, AI Act), simple migration of applications and data is becoming a pillar of digital sovereignty. The standard covers 80% of requirements (security, execution, data, communication) and will be published as open source, co-constructed with suppliers, users and institutions.

Presentation to IESF

22/04/2025

We explain why dependence on hyperscalers is becoming an operational risk (p.3), what portability and reversibility mean (p.4), what has worked (open-source, Kubernetes) vs. what hasn’t (heavy governance) (p.6), and our SPACE proposal: an 80/20 base and standardized APIs to make migration simple and measurable (p.9).

Call for pilot projects

October 2025

Objective: demonstrate feasibility and measure reversibility in concrete terms (changeover time, unavailability, exit costs).
Who: administrations and operators of vital importance, defense, healthcare, space and their suppliers; banks, critical industries, media; European trusted cloud providers.
How: a multicloud pilot project deployed on at least two qualified clouds or clouds in the process of being qualified(SecNumCloud), with contributions from the business and IT sides.

SPACE call for projects on European trusted/sovereign cloud — portability & interoperability for digital sovereignty — **Page 1.** Kick-off introducing **SPACE** to enable **portability** and **interoperability** that reinforce *digital sovereignty*.

80% EU cloud spend to US (€264B) — sovereign/trusted cloud in Europe; portability, reversibility, multicloud — **Page 2.** **80%** of EU cloud budgets flow to the US (~**€264B**/year): redirect to **European trusted/sovereign cloud** with **reversible multicloud**.

Regalian data: US extraterritorial laws (CLOUD Act, FISA 702) — SecNumCloud trusted sovereign cloud, EU compliance — **Page 3.** US *extraterritorial* risks (CLOUD Act, FISA 702); leverage **SecNumCloud** to ensure **trusted**, sovereign cloud aligned with EU law.

SPACE “USB key” for trusted cloud: 80% open source, ≤20% proprietary; standard APIs; VMs, containers, serverless, object storage — **Page 4.** **SPACE** enables **no-recode portability**, ~**80% open source**, ≤20% proprietary, with backward/forward compatibility.

VMs, containers, serverless

Object storage, event buses

RDBMS and **standard APIs**

Cloud portability flywheel—more offers, better price/quality, adoption; easy exit & entry; sovereign trusted cloud — **Page 5.** **Portability** powers a flywheel: confident entry, easy exit, more offers, better price/quality, broad adoption.

Benefits: EU security & compliance, cost control, reversibility, reliability; France 2030, Horizon EU; trusted sovereign cloud — **Page 6.** Benefits:

**EU security & compliance**

**Cost control** through **reversibility**

**Reliability**

**Public levers:**

France 2030

Digital EU

Horizon EU

IPCEI Cloud

Governance: Data Éclosion starts SPACE v1; consortium with CNFC, clients; trusted clouds Outscale & S3NS (SecNumCloud) — **Page 7.** **Data Éclosion** launches **SPACE v1** and convenes a **consortium**:

Clients

CNFC

Candidate SecNumCloud trusted clouds:

Outscale

S3NS

*A multicloud project operates on **at least two clouds**.*

Further information

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