Today I Learned

A ConfigMap in Kubernetes is an API object used to store non-confidential data in key-value pairs
Create your configmap by running:

kubectl create configmap <name-configmap> --from-env-file=.env

And finally, view your config:

kubectl get configmap <name-configmap> -o yaml

If you need to edit a value you can run

kubectl edit configmap <name-configmap>

Set the config on your kubernetes deploy files adding:

          envFrom:
            - configMapRef:
                name: <name-configmap>