How to get number of pods running in prometheus

kubernetes grafana prometheus cadvisor
MAG picture MAG · Dec 3, 2018 · Viewed 20k times · Source

I am scraping the kubernetes metrics from prometheus and would need to extract the number of running pods.

I can see container_last_seen metrics but how should i get no of pods running. Can someone help on this?

Answer

Anna Slastnikova picture Anna Slastnikova · Dec 3, 2018

If you need to get number of running pods, you can use a metric from the list of pods metrics https://github.com/kubernetes/kube-state-metrics/blob/master/docs/pod-metrics.md for that (To get the info purely on pods, it'd make sens to use pod-specific metrics). For example if you need to get the number of pods per namespace, it'll be: count(kube_pod_info{namespace="$namespace_name"}) by (namespace) To get the number of all pods running on the cluster, then just do: count(kube_pod_info)

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