Hubble UI is an open-source user interface for Cilium Hubble.

Hubble UI is installed as part of Hubble. Please see the Hubble Getting Started Guide for instructions.

Troubleshooting microservices application connectivity is a challenging task. Simply looking at kubectl get pods does not indicate dependencies between each service, external APIs, or databases.

Hubble UI enables zero-effort automatic discovery of the service dependency graph for Kubernetes Clusters at L3/L4 and even L7, allowing user-friendly visualization and filtering of those dataflows as a Service Map.

See Hubble Getting Started Guide for details.

The following procedure lets Hubble UI connect to an already existing Hubble relay instance in Kubernetes / OpenShift. It requires running your own backend locally, which in turn requires the capability to build Go programs on your workstation.

1. Go to the 📁 backend directory and execute ./ctl.sh.

   cd backend
   ./ctl.sh run

   Wait until the build is done and the server is running.

2. In a separate terminal, run a port forward to the Hubble relay:

   kubectl port-forward -n cilium-system deployment/hubble-relay 50051:4245

3. In yet another separate terminal, run the front-end:

   npm install
   npm run dev

4. Browse http:https://localhost:8080

2. Run a port forward to the Hubble UI back-end:

   kubectl port-forward -n hubble service/hubble-ui-epfl 8090:81

3. In a separate terminal, run the front-end:

   npm install
   npm run dev

4. Browse http:https://localhost:8080

Build the backend Docker image:

make hubble-ui-backend

Build the frontend Docker image:

make hubble-ui

Learn more about the Cilium community.

Push a tag into GitHub and ping a maintainer to accept the GitHub action run which pushes the built images into the official repositories.

Apache License, Version 2.0