Monitoring Optimizer Hub

Grafana Dashboard

You can find a Grafana configuration file cnc_dashboard.json in opthub-install-1.9.2.zip.

This dashboard expects the following labels to be attached to all application metrics:

You need to manually edit the dashboard file if these labels are named differently in your environment.

The dashboard also relies on some infrastructure metrics from Kubernetes and cAdvisor, such as kube_pod_container_resource_requests and container_cpu_usage_seconds_total.

Prometheus Configuration Instructions

Optimizer Hub components expose their metrics on HTTP endpoints in a format compatible with Prometheus. Annotations are in place in the Helm chart with the details of the endpoint for every component. For example:

 
annotations:
    prometheus.io/scrape: "true"
    prometheus.io/port: "8080"
    prometheus.io/path: "/q/metrics"

The following snippet is an example for the Prometheus configuration to scrape the metrics based on the above annotations:

 
# Example scrape config for pods
#
# The relabeling allows the actual pod scrape endpoint to be configured via the
# following annotations:
#
# * `prometheus.io/scrape`: Only scrape pods that have a value of `true`
# * `prometheus.io/path`: If the metrics path is not `/metrics` override this.
# * `prometheus.io/port`: Scrape the pod on the indicated port instead of the
# pod's declared ports (default is a port-free target if none are declared).
- job_name: 'kubernetes-pods'
  kubernetes_sd_configs:
  - role: pod

  relabel_configs:
  - source_labels: [__meta_kubernetes_pod_annotation_prometheus_io_scrape]
    action: keep
    regex: true
  - source_labels: [__meta_kubernetes_pod_annotation_prometheus_io_path]
    action: replace
    target_label: __metrics_path__
    regex: (.+)
  - source_labels: [__address__, __meta_kubernetes_pod_annotation_prometheus_io_port]
    action: replace
    regex: ([^:]+)(?::\d+)?;(\d+)
    replacement: $1:$2
    target_label: __address__
  # mapping of labels, this handles the `app` label
  - action: labelmap
    regex: __meta_kubernetes_pod_label_(.+)
  - source_labels: [__meta_kubernetes_namespace]
    action: replace
    target_label: kubernetes_namespace
  - source_labels: [__meta_kubernetes_pod_name]
    action: replace
    target_label: kubernetes_pod_name
  metric_relabel_configs:
  - source_labels:
      - namespace
    action: replace
    regex: (.+)
    target_label: kubernetes_namespace