When using kube-prometheus-stack and kubernetes cluster provisioned by kubeadm you will likely have an issue of prometheus not being able to connect to the kube-proxy metrics
It can be easily fixed by editing it’s config map
kubectl edit cm/kube-proxy -n kube-system
Change the metricsBindAddress property from 127.0.0.1:10249 (or empty value) to
metricsBindAddress: 0.0.0.0:10249
Delete and redeploy kube-proxy pods
kubectl delete pod -l k8s-app=kube-proxy -n kube-system
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