Prometheus Monitoring

In our environment, we rely on Claudie to export Prometheus metrics, providing valuable insights into the state of our infrastructure and applications. To utilize Claudie's monitoring capabilities, it's essential to have Prometheus installed. With this setup, you can gain visibility into various metrics such as:

• Number of managed K8s clusters created by Claudie
• Number of managed LoadBalancer clusters created by Claudie
• Currently added/deleted nodes to/from K8s/LB cluster
• Information about gRPC requests
• and much more

You can find Claudie dashboard here.

Configure scraping metrics

We recommend using the Prometheus Operator for managing Prometheus deployments efficiently.

1. Create RBAC that allows Prometheus to scrape metrics from Claudie’s pods:

   apiVersion: rbac.authorization.k8s.io/v1
   kind: Role
   metadata:
     name: claudie-pod-reader
     namespace: claudie
   rules:
   - apiGroups: [""]
     resources: ["pods"]
     verbs: ["get", "list"]
   ---
   apiVersion: rbac.authorization.k8s.io/v1
   kind: RoleBinding
   metadata:
     name: claudie-pod-reader-binding
     namespace: claudie
   subjects:
   # this SA is created by https://github.com/prometheus-operator/kube-prometheus
   # in your case you might need to bind this Role to a different SA
   - kind: ServiceAccount
     name: prometheus-k8s
     namespace: monitoring
   roleRef:
     kind: Role
     name: claudie-pod-reader
     apiGroup: rbac.authorization.k8s.io
   

2. Create Prometheus PodMonitor to scrape metrics from Claudie’s pods

   apiVersion: monitoring.coreos.com/v1
   kind: PodMonitor
   metadata:
     name: claudie-metrics
     namespace: monitoring
     labels:
       name: claudie-metrics
   spec:
     namespaceSelector:
       matchNames:
         - claudie
     selector:
       matchLabels:
         app.kubernetes.io/part-of: claudie
     podMetricsEndpoints:
     - port: metrics
   

3. Import our dashboard into your Grafana instance:
   • Navigate to the Grafana UI.
   • Go to the Dashboards section.
   • Click on "Import" and provide the dashboard ID or upload the JSON file.
   • Configure the data source to point to your Prometheus instance.
   • Save the dashboard, and you're ready to visualize Claudie's metrics in Grafana.

That's it! Now you have set up RBAC for Prometheus, configured a PodMonitor to scrape metrics from Claudie's pods, and imported a Grafana dashboard to visualize the metrics.