k create cm kubernauts --from-literal=dev=ops --dry-run -o yaml > cm-kubernauts.yaml
cat cm-kubernauts.yaml
echo -n "ops" > dev
k create cm kubernauts --from-file=./dev
k get cm
k describe cm kubernauts
k delete cm kubernauts
k create -f cm-kubernauts.yaml
k describe cm kubernauts