Thanks for the reply. This is along the lines as I would have expected.
So how would someone use a container runtime on an Embedded System without hacking it? It looks like container engines cater to the cloud but not so much to the Embedded market, although this seems to be an emerging market.
I guess non-atomic software/container updates could also be problematic in the PC/server/cloud market.
The current non-software solution seems to get a UPS 
But this is not possible for embedded systems.
https://www.reddit.com/r/docker/comments/fvjp7y/docker_corruption_after_power_failure/