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A self-managed Firebolt engine can run an optional web UI for running queries from a browser. The UI runs as a sidecar container in each engine pod, points at the engine in the same pod over loopback (http://localhost:3473), and listens on port 9100. It is off by default.

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Enable the UI

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Helm chart

Set uiSidecar on the engine spec in your values file and upgrade the release: 
engineSpec:
  uiSidecar: true
The chart adds the UI container to each engine pod and publishes port 9100 (named web-ui) on the engine Service.

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Firebolt Operator

Set uiSidecar: true on a FireboltEngine, or on a FireboltEngineClass to apply it to every engine that references the class: 
apiVersion: compute.firebolt.io/v1alpha1
kind: FireboltEngine
metadata:
  name: my-engine
spec:
  uiSidecar: true
The operator injects its built-in engine-web container into each engine pod. An engine value overrides the class value, which overrides the default (false). See the uiSidecar field in the CRD reference.

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Open the UI

The UI listens on port 9100 inside the engine pod. Forward that port from a pod to your workstation, then open http://localhost:9100: 
kubectl -n firebolt get pods
kubectl -n firebolt port-forward <engine-pod> 9100:9100
With the Helm chart, port 9100 is also published on the engine Service, so you can forward the Service instead: 
kubectl -n firebolt port-forward svc/my-engine-service 9100:9100