pod.yaml

kind: Pod 
apiVersion: v1 
metadata:
  name: pod-using-configmap 

spec:
  # Add the ConfigMap as a volume to the Pod
  volumes:
    # `name` here must match the name
    # specified in the volume mount
    - name: example-configmap-volume
      # Populate the volume with config map data
      configMap:
        # `name` here must match the name 
        # specified in the ConfigMap's YAML 
        name: example-configmap

  containers:
    - name: container-configmap
      image: nginx:1.7.9
      # Mount the volume that contains the configuration data 
      # into your container filesystem
      volumeMounts:
        # `name` here must match the name
        # from the volumes section of this pod
        - name: example-configmap-volume
            mountPath: /etc/config

Error on line 27: mapping values are not allowed in this context
Volume mount should be

volumeMounts:
  # `name` here must match the name
  # from the volumes section of this pod
  - name: example-configmap-volume
    mountPath: /etc/config