403 Error in Metrics dropdown

  • What Grafana version and what operating system are you using?
    Grafana 9.5.2 Enterprise and Redhat UBI 9

  • What are you trying to achieve?
    Grafana and Prometheus + Postgres_Exporter

  • How are you trying to achieve it?
    Build docker image and upload to GKE

  • What happened?
    In Grafana URL after adding Prometheus Database (test is success) and in Add Visualization after chosing Source and selecting Metric gives 403 error

  • What did you expect to happen?
    List the metrics that are available in Prometheus

  • Can you copy/paste the configuration(s) that you are having problems with?

  • Did you receive any errors in the Grafana UI or in related logs? If so, please tell us exactly what they were.
    Error

<!doctype html>403403 Forbidden

  • Did you follow any online instructions? If so, what is the URL?