ConfigMap as container environment variables

[boredland]

Is there a way to use configMaps to configure the environment variables in a container in this style?

https://kubernetes.io/docs/tasks/configure-pod-container/configure-pod-configmap/#configure-all-key-value-pairs-in-a-configmap-as-container-environment-variables

Something like in the official docs is what I search:

pods/pod-configmap-envFrom.yaml 

apiVersion: v1
kind: Pod
metadata:
  name: dapi-test-pod
spec:
  containers:
    - name: test-container
      image: k8s.gcr.io/busybox
      command: [ "/bin/sh", "-c", "env" ]
      envFrom:
      - configMapRef:
          name: special-config
  restartPolicy: Never

[StrongMonkey]

Check examples at here https://github.com/rancher/rio/blob/master/docs/workloads.md#examples. There are only CLI examples but syntax will be same for riofile.