Running the Same Kubernetes Workloads in an EU Sovereign Cloud and in AWS: The Tool Stack That Actually Works
Blog post from Qovery
Running identical Kubernetes workloads across AWS and an EU sovereign cloud requires a layered approach rather than a single tool, combining OpenTofu or Terraform for infrastructure, Skopeo or registry replication for images, Helm or Kustomize for portable manifests, Argo CD or Flux for GitOps delivery, Velero or database replication for state, and weighted DNS with Linkerd or Istio for traffic management. Kubernetes workloads can share container images and base configurations, but cloud-specific dependencies such as IAM, ingress annotations, storage classes, secret stores, managed databases, and observability systems require small per-cloud adaptations. Sovereign-cloud requirements are driven by data residency, EU operational control, and GDPR transfer concerns, so teams should classify data by workload, retain regulated personal data in the sovereign environment, and organize services by bounded context to reduce cross-cloud latency and egress costs. CSI snapshots generally cannot migrate persistent volumes between providers, making file-system backups, storage-class remapping, and logical database replication more suitable for portability. The recommended operating models are active/active deployments with residency-based data partitioning or primary/secondary arrangements, supported by staged weighted traffic shifts, tested rollback procedures, matched observability, and explicit recovery objectives. The text positions Qovery as an optional internal developer platform that can reduce per-cloud deployment configuration by deploying into customer-owned accounts or registered clusters, while remaining complementary to specialized tools for backups, image distribution, service mesh, policy enforcement, and infrastructure provisioning.
| Trend | Post Mentions | Total Month Mentions | Posts | Companies | MoM |
|---|---|---|---|---|---|
| Kubernetes | 39 | 956 | 75 | 30 | -73% |
| Secrets Management | 9 | 451 | 99 | 43 | -80% |
| Platform Engineering | 7 | 358 | 65 | 25 | -70% |
| Observability | 5 | 472 | 102 | 54 | -85% |
| Developer Experience | 1 | 131 | 58 | 24 | -72% |
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