Catalyst hosting
Diagrid Catalyst is built on the open-source Dapr runtime and centralizes the Dapr deployment in a Kubernetes cluster — operated by Diagrid or by you — where it runs as a managed platform. Your applications connect to the Catalyst data plane, which handles workflow execution, state management, and distributed-application coordination, independently of where those applications run.
Deployment models
Catalyst has four deployment models, from a fully managed cloud service to a fully air-gapped deployment. They differ in where the Catalyst data plane runs and who operates it:
| Deployment model | Control plane | Data plane | Operated by | Best for |
|---|---|---|---|---|
| Catalyst Cloud | Diagrid | Diagrid, multi-tenant | Diagrid | Evaluation and small-to-medium workloads, with zero setup. |
| Dedicated Cloud | Diagrid | Diagrid, single-tenant | Diagrid | Production workloads that need single-tenant isolation without operating infrastructure. |
| BYOC | Diagrid | Your cloud | Diagrid or you | Data residency — application data must stay in your own network. |
| Enterprise Server | You | You | You | Regulated and defense environments with no external connectivity. |
BYOC comes in two flavors: managed, where Diagrid provisions and operates the region inside your cloud account, and self-managed, where you deploy and operate the data plane on your own Kubernetes cluster.
Catalyst Cloud is available on a free plan; the other three models are part of Catalyst Enterprise. See Plans & support.
Within any model, Catalyst isolates workloads using regions — data-plane clusters — and projects, logical groups within a region.
The diagrams below show where the control plane, the data plane (Dapr deployment plus Catalyst agent), and your applications run in each model.
Catalyst Cloud
A shared, Diagrid-hosted control and data plane. Your applications connect over the public internet. Best for evaluation and small-to-medium development workloads.
Dedicated Cloud
A dedicated, single-tenant control and data plane managed by Diagrid. The topology mirrors Catalyst Cloud, but the platform is isolated to one customer and sized for production workloads. See Catalyst Dedicated Cloud for how to create one.
BYOC: Managed
Diagrid manages the control plane and provisions and operates the data plane inside your own cloud account, through a cloud connection you grant. Application traffic and data stay in your network, while Diagrid keeps operational responsibility for the region.
BYOC: Self-managed
Diagrid manages the control plane; the data plane runs inside your infrastructure, deployed and operated by you. Applications connect to the data plane over your private network, keeping application traffic and data local. See Self-managed BYOC for the full deployment workflow.
Enterprise Server
Both the control plane and the data plane run inside your infrastructure. No traffic leaves your network, which suits environments with strict regulatory or network isolation requirements. See Catalyst Enterprise Server.