Kubernetes DinD POD spec using Argo flexVolumes

apiVersion: v1
kind: Pod
metadata:
    name: dind
spec:
    containers:
      - name: docker-cmds
        image: docker:1.12.6
        command: ['docker', 'run', '-p', '80:80', 'httpd:latest']
        resources:
            requests:
                cpu: 10m
                memory: 256Mi
        env:
          - name: DOCKER_HOST
            value: tcp://localhost:2375
      - name: dind-daemon
        image: docker:1.12.6-dind
        resources:
            requests:
                cpu: 20m
                memory: 512Mi
        securityContext:
            privileged: true
        volumeMounts:
          - name: docker-graph-storage
            mountPath: /var/lib/docker
    volumes:
    - name: docker-graph-storage
      flexVolume:
        driver: "ax/vol_plugin"
        fsType: "ext4"
        options:
          size_mb: "10240"
          ax_vol_type: "ax-docker-graph-storage"