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Both cuda and prometheus have services that need to start only on machines
with GPU.  They rely on /dev/nvidia0 being present on such machines to
detect the presence of GPU.

However, /dev/nvidia0 is not created when the nvidia driver is loaded, but
only when `nvidia-smi` is first run.

The new service calls `nvidia-smi` once during boot to create /dev/nvidia0
and thus to allow the other services to start.  On machines without GPU,
`nvidia-smi` will fail, so we ignore its exit code.

This was apparently never done, so the service is installed since 2018 but
never actually run...

We only start the service if /dev/nvidia0 exists (i.e nvidia driver is
loaded), because otherwise the service would fail.

- Add setup_orchestrator and run_orchestrator steps for debian9
- Move puppet recipes from Attic to steps/data/setup/{puppet,hiera}

This reverts commit 0d1d90b1.

Reverting temporarily to generated new environment.

This reverts commit 0517c924.

              Add the nvidia-persistenced.service