> For the complete documentation index, see [llms.txt](https://docs.dbnl.com/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://docs.dbnl.com/v0.22.x/platform/self-hosted/architecture.md).

# Architecture

The dbnl platform architecture consists of a set of services packaged as Docker images and a set of standard infrastructure components.

<figure><img src="/files/rwk3njaFmxPOr08TZXza" alt=""><figcaption><p>dbnl platform architecture</p></figcaption></figure>

## Infrastructure

The dbnl platform requires the following infrastructure:

* A Kubernetes cluster to host the dbnl platform services.
* A PostgreSQL database to store metadata.
* An object store bucket to store raw data.
* A Redis database to serve as a messaging queue.
* A load balancer to route traffic to the API or UI service.

## Services

The dbnl platform consists in three core services:

* The API service (api-srv) serves the dbnl API and orchestrates work across the dbnl platform.
* The worker service (worker-srv) processes async jobs scheduled by the API service.
* The UI service (ui-srv) serves the dbnl UI assets.