Chapter 2. Monitoring and logging Red Hat Developer Hub on Amazon Web Services (AWS)

Procedure

1. As an administrator of the Red Hat Developer Hub Operator, edit the default configuration to add Prometheus annotations as follows:

   # Update OPERATOR_NS accordingly
   $ OPERATOR_NS=rhdh-operator
   $ kubectl edit configmap backstage-default-config -n "${OPERATOR_NS}"

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2. Find the deployment.yaml key in the config map and add the annotations to the spec.template.metadata.annotations field as follows:

   deployment.yaml: |-
     apiVersion: apps/v1
     kind: Deployment
     # --- truncated ---
     spec:
       template:
         # --- truncated ---
         metadata:
           labels:
            rhdh.redhat.com/app:  # placeholder for 'backstage-<cr-name>'
           # --- truncated ---
           annotations:
             prometheus.io/scrape: 'true'
             prometheus.io/path: '/metrics'
             prometheus.io/port: '9464'
             prometheus.io/scheme: 'http'
     # --- truncated ---

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3. Save your changes.

1. Use kubectl to port-forward the Prometheus console to your local machine as follows:

   $ kubectl --namespace=prometheus port-forward deploy/prometheus-server 9090

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2. Open your web browser and navigate to http://localhost:9090 to access the Prometheus console.
3. Monitor relevant metrics, such as process_cpu_user_seconds_total.

1. Use kubectl to port-forward the Prometheus console to your local machine as follows:

   kubectl --namespace=prometheus port-forward deploy/prometheus-server 9090

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2. Open your web browser and navigate to http://localhost:9090 to access the Prometheus console.
3. Monitor relevant metrics, such as process_cpu_user_seconds_total.