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kubectl create cm my-config \
--from-file=prometheus-conf.yml
kubectl describe cm my-config
kubectl create -f alpine.yml
kubectl get pods
kubectl exec -it alpine -- \
ls /etc/config
kubectl exec -it alpine -- \
ls -l /etc/config
kubectl exec -it alpine -- \
cat /etc/config/prometheus-conf.yml
kubectl delete -f alpine.yml
kubectl delete cm my-config