Thanks a lot for your quick answer !
> This means that the dispatcher was unable to understand the device
> configuration - you've missed out some values which are needed to
> allow the dispatcher to build the pipeline of actions. In this case,
> in the deploy block.
>
> Debugging this is not easy but is part of the device integration
> process. You may need to dig into the accepts functions of the
> Strategy classes in lava-dispatcher and work out which check is
> failing. (We are looking at how to make this easier but the process
> also has to be very fast, so it needs manual debugging at the moment.)
Okay now I know where to find it, I will dig into the source code !
> We're extending the device integration documentation at the moment -
> you may find this new content useful:
>
> https://review.linaro.org/#/c/20604/
>
> Probably the best thing to do is follow that new guidance to create a
> unit test in lava-server which you can run to ensure that the values
> you expect to be in the device configuration are being correctly
> created by the new template.