apiVersion: apps/v1beta2
kind: Deployment
metadata:
  name: nginx
spec:
  template:
    spec:
      volumes:
      - name: nginx-persistent-storage
        emptyDir: null
        gcePersistentDisk:
          pdName: nginx-persistent-storage
      - configMap:
          name: configmap-in-overlay
        name: configmap-in-overlay