---
dependencies:
  - {
      role: docker.ubuntu,
      docker_version: '1.8.1-0~trusty',
      docker_group_members: '{{ users }}',
      docker_opts: '-H tcp://0.0.0.0:2375 -H unix:///var/run/docker.sock --storage-driver=devicemapper --storage-opt dm.datadev=/dev/vg-docker/data --storage-opt dm.metadatadev=/dev/vg-docker/metadata'
  }

---
dependencies:
  - {
      role: docker.ubuntu,
      docker_version: '1.8.1-0~trusty',
      docker_group_members: '{{ users }}',
      docker_opts: '-H tcp://0.0.0.0:2375 -H unix:///var/run/docker.sock --storage-driver=devicemapper --storage-opt dm.datadev=/dev/vg-docker/data --storage-opt dm.metadatadev=/dev/vg-docker/metadata',
      install_kernel_extras: true
  }

Make sure kernel extras are installed for docker installations using devicemapper.
Make sure kernel extras are installed for docker installations using devicemapper.
