Control plane vs data plane in BYOC: What runs where?

Bring Your Own Cloud (BYOC) separates the control plane, which configures deployments and manages platform operations, from the data plane, which runs application workloads and processes data, with the common model placing vendor-operated management services outside the customer’s cloud account while workloads run inside it. Organizations evaluating BYOC should distinguish component location from operational responsibility, identify who manages the platform, Kubernetes clusters, infrastructure, applications, upgrades, and recovery, and trace separate management and application traffic paths. BYOC does not necessarily keep all information within the customer environment, as metadata, logs, metrics, build images, secrets, and backups may have different storage locations and access arrangements. Existing workloads may continue serving traffic during a control-plane outage, but deployment changes, scaling, credential renewal, and recovery can still depend on management services, so resilience should be tested for specific failure scenarios. The discussion also distinguishes platform control planes from Kubernetes control planes, compares vendor-managed BYOC with customer-operated BYOK and self-hosting, and notes that enterprises with strict residency, disconnected-operation, or air-gapped requirements may need a forward-deployed control plane within their own environment.

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