The hypriot guys are doing great work, and we share a common mission in spreading containers to embedded development. ResinOS is built with production deployments as a first goal, and so has a read-only rootFS, supports atomic host OS updates, is ported (and portable) to a lot of device types (via Yocto) and in general has many more "embedded" characteristics than Debian, on which hypriotOS is based. I do however want to reiterate that we know the Hypriot guys decently well and appreciate the work they're doing to make Docker accessible to embedded hackers.
Excellent response and yes, HypriotOS is based on Raspbian, which is a Debian derivative. Glad to hear you're using Yocto as well. I'll certainly have to check this out.
Do you have anyone using Kubernetes on ResinOS by chance? I've got a small fleet of small hardware and had started looking at running k8s on HypriotOS, but this looks a bit more custom built.
Haven't really tried to go that route. There are some fundamental limitations to Kubernetes and Docker Swarm due to their dependence on etcd, which behaves very badly when the devices are not on the same LAN. Depending on your use case you may want to have a look at resin.io as a management/orchestration service of sorts (pardon the plug), though our focus is purely on embedded/IoT scenarios, so it may or may not apply to your use case.
Nah I also do quite a bit of work with microcontrollers such as the esp8266 (32 bit 80Mhz RISC) and the just released esp32. It's relevant and I'll check them out.