How to: copy env-var from output container spec to pod.yml to avoid clutter
kubectl delete -f pod.yml # naked pod cannot update env-var, only deployment
kubectl apply -f pod.yml
kubectl get all,cm # mypod in running state
kubectl exec -it mypod -- printenv
kubectl delete deploy,po,cm mycm-file mycm-env web-file web-env mypod
rm file.env
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