Single-tenant vs multi-tenant PaaS: infrastructure-level changes for regulated industries
Blog post from Upsun
Regulated organizations often request single-tenant hosting as a proxy for requirements such as data isolation, guaranteed performance, data residency, auditability, and incident containment, but the article argues that most of these guarantees can be met through verifiable infrastructure controls rather than fully dedicated hardware. It describes tenancy as a spectrum between fully dedicated single-tenant stacks, shared multi-tenant platforms, and strictly isolated per-project environments on shared cloud infrastructure with dedicated-resource options for specific workloads. The recommended approach is to identify the controls a workload must demonstrate, including network segmentation, access controls, regional placement, automated audit logs, reproducible environments, platform-enforced guardrails, and clearly defined shared responsibilities, instead of adopting single tenancy by default. Using Upsun as an example, the article says its platform provides isolated projects, multi-cloud deployment, compliance controls across development and production environments, version-controlled configurations, logged changes, and dedicated clusters where physical separation is required, positioning this model as a cost-conscious option for many regulated workloads.
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