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OpenWebUI Pipelines

Pipelines run alongside OpenWebUI to handle OpenAI-compatible traffic on port 9099. The Deployment mounts a persistent volume at /app/pipelines so installed pipeline modules and dependencies survive pod restarts.

Configuration​

  • Storage: openwebui-pipelines-storage is a 10Gi Longhorn PersistentVolumeClaim mounted at /app/pipelines in the openwebui-pipelines Deployment.
  • Secrets: The ExternalSecret app-openwebui-pipelines-api-key sources PIPELINES_API_KEY from Bitwarden and injects it into the container.
  • Service: The pipelines ClusterIP Service exposes port 9099 inside the open-webui namespace.
  • Access: Add an OpenAI connection in the OpenWebUI admin panel with base URL http://pipelines.open-webui.svc.cluster.local:9099 and the same API key stored in Bitwarden. Use that connection for models that should run through pipelines.
  • Upstream provider: Configure pipeline valves in the OpenWebUI UI to call LiteLLM at http://litellm.litellm.svc.cluster.local:4000/v1 with the existing LiteLLM API key.