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Prometheus on Kubernetes cannot edit rules configmap


User wants to change ( add / edit /delete  ) the configmap rules for promethues alerts

running the following command

kubectl edit configmap prometheus-kube-prometheus-stack-prometheus-rulefiles-0

allows you to see the alert rules but not to change them. any changes return to default


Starting from version 0.21 there are promethuesrule object you need to change

to see all the rules available

kubectl -n <NAMESPACE> get prometheusrule

to edit a rule

kubectl edit prometheusrule kube-prometheus-stack-general.rules

this will reflect to the configmap

scale down and up the deployment

kubectl scale deployment kube-prometheus-stack-operator –replicas=0

kubectl scale deployment kube-prometheus-stack-operator –replicas=1



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