# To change / edit / delete the rules 
kubectl get prometheusrule
kubectl edit prometheusrule kube-prometheus-stack-general.rules

# To apply the changes
kubectl get deployments
kubectl scale deployment kube-prometheus-stack-operator --replicas=0
kubectl scale deployment kube-prometheus-stack-operator --replicas=1

#to check the rules
kubectl edit cm prometheus-kube-prometheus-stack-prometheus-rulefiles-0