Use nomad executor to execute rkt

[achanda]

This provides some extra benefits out of the box

[dadgar]

Hey @achanda, I don't think we want to go down this route. The nomad executor uses cgroups and chroots when it can and since rkt does the same we would be nesting these. It will probably break rkt as well since not all the filesystem mounts are exposed to the chroot as well as making tracking the state of the processes confusing as the executor does a double fork. If there are issues with the rkt driver that would be fixed by using the executor, we should just add those functionalities to the rkt driver itself.

[achanda]

I see, thanks for the explanation.

[dadgar]

Of course!

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