Question

What configmap let's me edit the scrape_configs of the prometheus app on kubernetes

I have installed the one-click app “Prometheus Kubernetes”, with it came an ever so nice stack of software that I am very thankful for, however I have some additional metrics that I would like to be scraped. I am however lost in all of the configmappers that the app installs. I have so far searched the configmaps:

  • configmap/prometheus-operator-prometheus
  • configmap/prometheus-prometheus-operator-prometheus-rulefiles-0
  • configmap/prometheus-operator-prometheus
  • configmap/prometheus-operator-pod-totoal
  • configmap/prometheus-operator-pod-total

for the “scrape_configs” string, but could not find any.

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Accepted Answer

The trick is that this app installs prometheus-operator, which is a separate project. It’s github account provides documentation for the project, in which you can find the description for adding scrape configs.

I made a little bash script in order to search the configmaps:

confs=$(
    kubectl get configmaps -n prometheus-operator |
    grep "prometheus" |
    awk -F " " '{print $1}'
)

for conf_name in $confs
do
    echo "Looking at $conf_name"
    kubectl get -n prometheus-operator configmap/$conf_name -o yaml | grep scrape
done

However this gave no result, so clearly the scrape_configs is in a configmap.