The deployment of Kube State Metrics for Google Managed Prometheus creates both a PodMonitoring and ClusterPodMonitoring.

The PodMonitoring resource exposes metrics published on metric-self port (8081).

The ClusterPodMonitoring exposes metrics published on metric port (8080) but this doesn’t include cronjob-related metrics:

kubectl get clusterpodmonitoring/kube-state-metrics \
--output=jsonpath="{.spec.endpoints[0].metricRelabeling}" \
| jq -r .

[
  {
    "action": "keep",
    "regex": "kube_(daemonset|deployment|replicaset|pod|namespace|node|statefulset|persistentvolume|horizontalpodautoscaler|job_created)(_.+)?",
    "sourceLabels": [
      "__name__"
    ]
  }
]

NOTE The regex does not include kube_cronjob and only includes kube_job_created patterns.

Phew!

For Want of a Nail

I was interested in learning how to Manage Resources for Containers. On the way, I learned and discovered:

• kubectl top
• Vertical Pod Autoscaler
• A (valuable) digression through PodMonitor
• kube-state-metrics
• `kubectl-patch
• Created a Graph
• References

Kubernetes Resources

Visual Studio Code has begun to bug me (reasonably) to add resources to Kubernetes manifests.

E.g.:

resources:
  limits:
    cpu: "1"
    memory: "512Mi"

I’ve been spending time with Deislab’s Akri and decided to determine whether Akri’s primary resources (Agent, Controller) and some of my creations HTTP Device and Discovery, were being suitably constrained.