Setting Up Backstage with Guest Authentication on a Kubernetes Cluster

Question

I'm working on deploying Backstage on a Kubernetes cluster using the Helm chart and looking to enable guest user access for development purposes. However, I'm encountering a "501 Not Implemented" error when accessing the /api/auth/guest/refresh endpoint. I've configured the guest provider in both my App.tsx for the frontend and in the app-config.yaml for the backend. The cluster is accessible internally, and I'm using HAProxy for ingress routing to access Backstage externally.

Installation & Configuration Details:

• Installation Method: Deployed Backstage using the Helm chart provided in the official repository.
• Access Method: Accessing the Backstage UI via HAProxy, which is configured to route external requests to my Kubernetes cluster.
• Cluster Access: The cluster is configured for internal access, with necessary network policies in place to secure it.
• Guest User Setup:
  • Frontend: Added guest to the providers array in the SignInPage component within App.tsx.
  • Backend: Included auth.providers.guest: {} in my app-config.yaml.

Despite following the setup instructions, the guest authentication isn't working as expected due to the "501 Not Implemented" error. Has anyone successfully set up guest user access in a similar environment, or does anyone have insights on troubleshooting this issue within a Kubernetes deployment accessed through HAProxy?

Any advice, insights, or guidance would be greatly appreciated. Thank you in advance for your help!