N=config-demo

k create ns $N

k -n $N create configmap cm-literal --from-literal app=tickets \
--from-literal env=prod

k -n $N get configmap cm-literal -oyaml

echo "app=flights\nenv=qa" > envfile

cat envfile

k -n $N create configmap cm-env --from-env-file envfile

k -n $N get configmap cm-env -oyaml

cp envfile file.properties

k -n $N create configmap cm-file --from-file mydata=file.properties

k -n $N get configmap cm-file -oyaml

k -n $N create deployment cm-deployment --image nginx --dry-run \
-oyaml > cm-deploy.yaml

code cm-deploy.yaml

k create -f cm-deploy.yaml

k -n $N exec cm-deployment-  -- env

k -n $N exec cm-deployment-   -- cat /etc/config/mydata